Energy statistics - quantities (nrg_quant)

National Reference Metadata in Single Integrated Metadata Structure (SIMS)

Compiling agency: Sustainable Energy Authority of Ireland


Eurostat metadata
Reference metadata
1. Contact
2. Metadata update
3. Statistical presentation
4. Unit of measure
5. Reference Period
6. Institutional Mandate
7. Confidentiality
8. Release policy
9. Frequency of dissemination
10. Accessibility and clarity
11. Quality management
12. Relevance
13. Accuracy
14. Timeliness and punctuality
15. Coherence and comparability
16. Cost and Burden
17. Data revision
18. Statistical processing
19. Comment
Related Metadata
Annexes (including footnotes)



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1. Contact Top
1.1. Contact organisation

Sustainable Energy Authority of Ireland
1.2. Contact organisation unit

Energy Policy Statistical Support Unit
1.5. Contact mail address

Sustainable Energy Authority of Ireland, Building 2100, Cork Airport Business Park, Cork, Ireland


2. Metadata update Top
2.1. Metadata last certified 28/09/2022
2.2. Metadata last posted 28/09/2022
2.3. Metadata last update 27/07/2022


3. Statistical presentation Top
3.1. Data description

Main characteristics of the various data collections detailed under 3.1.1
3.1.1. Data description – details and links to EU data collections
Name of the national data collection National body responsible List of variables included in this data collection Link to EU data collections (by frequency, energy product set, sector)
Electricity Supply Sustainable Energy Authority of Ireland
  • Production
  • Imports
  • Exports

Annual solid fuels statistics
For the sectors below with some of the following energy products: Other bituminous coal;

  • Transformation sector

 

Annual electricity and heat statistics
For the sectors below with some of the following energy products: Hydro; Combustible fuels;

  • Production
  • Transformation sector
  • Consumption: Energy sector
  • Consumption: Transport
  • Trade (imports / exports)
  • Infrastructure

For the sectors below with some of the following energy products: Wind;

  • Production
  • Transformation sector
  • Consumption: Energy sector
  • Infrastructure

 

Annual natural gas statistics
For the sectors below and the following energy products: natural gas

  • Transformation sector

 

Annual renewables and wastes statistics
For the sectors below with some of the following energy products: Hydro power; Wind power;

  • Production
  • Transformation sector
  • Consumption: Energy sector
  • Consumption: Industry
  • Infrastructure

For the sectors below with some of the following energy products: Solid biofuels; Biogases; Municipal waste; Industrial waste;

  • Transformation sector
  • Infrastructure


Monthly electricity statistics
For the sectors below with some of the following energy products: Hydro power; Wind power; Conventional thermal;

  • Generation
  • Nuclear heat production
  • Trade (imports / exports)


Short-term monthly electricity statistics
For the sectors below and the following energy products: electricity

  • Production
  • Trade (imports / exports)

 

Short-term monthly natural gas statistics
For the sectors below and the following energy products: natural gas

  • Production
  • Trade (imports / exports)
Solid Fuel Sustainable Energy Authority of Ireland Indigenous Production
Opening Stock
Closing Stock
Domestic Purchases
Imports By Country
Exports By Country
Waste & Losses
Input to Electricity Generation
Input to Manufactured Ovoids
Own Consumption
Sales to Other Solid Fuel Companies
Sales to Iron & Steel Industry
Sales to All Other Manufacturing Industry
Sales to Commercial Services Sector
Sales to Public Service Sector
Sales to Residential Sector
Sales to Transport Sector
Sales to Agricultural Sector

Annual solid fuels statistics
For the sectors below with some of the following energy products: Anthracite; Patent fuel; BKB; Peat; Peat products;

  • Transformation sector
  • Production
  • Consumption: Energy sector
  • Consumption: Industry
  • Consumption: Transport
  • Consumption: Residential
  • Consumption: Other
  • Trade (imports / exports)
  • Stocks
  • Infrastructure
  • Calorific values

For the sectors below with some of the following energy products: Other bituminous coal;

  • Production
  • Consumption: Energy sector
  • Consumption: Industry
  • Consumption: Transport
  • Consumption: Residential
  • Consumption: Other
  • Trade (imports / exports)
  • Stocks
  • Infrastructure
  • Calorific values

Annual oil and petroleum products statistics
For the sectors below with some of the following energy products: Petroleum coke;

  • Transformation sector / Refinery
  • Production
  • Consumption: Energy sector
  • Consumption: Industry
  • Consumption: Transport
  • Consumption: Residential
  • Consumption: Other
  • Trade (imports / exports)
  • Stocks
  • Infrastructure
  • Calorific values


Monthly solid fuels statistics
For the sectors below with some of the following energy products: Hard coal; Peat; Patent fuels; BKB;

  • Deliveries
  • Production
  • Trade (imports / exports)
  • Stocks

Statistics on final energy consumption in households

For the sector below with some of the following energy products: Hard coal; Peat; Patent fuels; BKB;

  • Residential
Oil Sustainable Energy Authority of Ireland Opening stock
Imports
Purchases from listed parties
Exports
Biofuels produced
Transformation
Own consumption
Closing stock
Total Sales (observed)
Sales to listed parties
Marine bunkers
Aviation fuels
Refinery production

Annual oil and petroleum products statistics
For the sectors below with some of the following energy products: Crude oil; Refinery feedstocks; Additives-oxygenates; Other hydrocarbons; Refinery gas; LPG; Naphtha; Motor gasoline; Aviation gasoline; Kerosene type jet fuel; Other kerosene; Gas/diesel oil; Fuel oil; Other oil products;

  • Transformation sector / Refinery
  • Production
  • Consumption: Energy sector
  • Consumption: Industry
  • Consumption: Transport
  • Consumption: Residential
  • Consumption: Other
  • Trade (imports / exports)
  • Stocks
  • Infrastructure
  • Calorific values


Monthly oil statistics
For the sectors below with some of the following energy products: Crude oil; Refinery feedstocks; Additives-oxygenates; Other hydrocarbons; Refinery gas; LPG; Naphtha; Motor gasoline; Aviation gasoline; Kerosene type jet fuel; Other kerosene; Gas/diesel oil; Fuel oil; Petroleum coke;

  • Refinery output or production in case of crude oil
  • Direct use
  • Refineries (backflows and products transferred)
  • Trade (imports / exports)
  • Stocks


Short-term monthly oil statistics
For the sectors below with some of the following energy products: Crude oil; LPG; Naphtha; Gasoline; Total kerosene; Gas/diesel oil; Fuel oil; Other products;

  • Refinery (intake and output)
  • Demand
  • Production
  • Trade (imports / exports)
  • Stocks
Monthly Gas Sustainable Energy Authority of Ireland Production, Imports, Exports, Opening Stock, Closing Stock

Annual natural gas statistics
For the sectors below and the following energy products: natural gas

  • Production
  • Stocks
  • Infrastructure
  • Calorific values


Monthly natural gas statistics
For the sectors below with some of the following energy products: natural gas

  • Deliveries to power generation
  • Production
  • Trade (imports / exports)
  • Stocks
Electricity Generation Sustainable Energy Authority of Ireland Fuel Type, Fuel Input, Gross Energy Input, Net Energy Input, Gross Calorific Value, Net Calorific Value, Opening Stock, Deliveries, Closing Stock, Electricity Generated, Own use in elec gen plant, Exported Electricity

Annual solid fuels statistics

  • Calorific values

Annual electricity and heat statistics
For the sectors below with some of the following energy products: Hydro; Combustible fuels;

  • Calorific values

Annual renewables and wastes statistics

For the sectors below with some of the following energy products: Solid biofuels; Biogases; Municipal waste; Industrial waste;

  • Calorific values


Monthly electricity statistics
For the sectors below with some of the following energy products: Hydro power; Wind power; Conventional thermal;

  • Consumption in public power thermal stations
  • Fuel stocks in public power thermal stations
Electricity Consumption Sustainable Energy Authority of Ireland Final consumption

Annual electricity and heat statistics
For the sectors below with some of the following energy products: Hydro; Combustible fuels;

  • Consumption: Industry
  • Consumption: Residential
  • Consumption: Other

Statistics on final energy consumption in households

For the sector below;

  • Residential
Annual Gas Sustainable Energy Authority of Ireland Imports, Final Consumption for all sectors

Annual natural gas statistics
For the sectors below and the following energy products: natural gas

  • Consumption: Energy sector
  • Consumption: Industry
  • Consumption: Transport
  • Consumption: Residential
  • Consumption: Other
  • Trade (imports / exports)

Statistics on final energy consumption in households

For the sector below;

  • Residential
Combined Heat and Power Sustainable Energy Authority of Ireland Prime Mover, Fuel Type, Capacity, Fuel Input, Electricity Generated, Total Heat Generated, Heat Usefully Employed, Electricity Exported to the Grid

Annual Natural Gas

Additional source for sector

  • Not available.
Wood Fuel Suppliers Sustainable Energy Authority of Ireland Indigenous Production, Opening Stock, Domestic purchases, Imports, Exports, Closing Stock, Own Consumption, Sales

Annual renewables and wastes statistics
For the sectors below with some of the following energy products: Solid biofuels; Biogases; Municipal waste; Industrial waste;

  • Production
  • Consumption: Energy sector
  • Consumption: Residential
  • Consumption: Other
  • Trade (imports / exports)
  • Stocks

Statistics on final energy consumption in households

For the sector below;

  • Residential
Wood Waste Sustainable Energy Authority of Ireland Quantity of Wood Matter
% Moisture
Calorific Value
Electricity Generated
Heat Generated
Boiler Capacity

Annual renewables and wastes statistics
For the sectors below with some of the following energy products: Solid biofuels; Biogases; Municipal waste; Industrial waste;

  • Consumption: Industry
Municipal and Other Waste Sustainable Energy Authority of Ireland Fuel Type, Quantity, Energy Input, NCV, Exports

Annual Renewables and Wastes Statistics

For the sectors below with some of the following energy products: Hydro power; Wind power;

As additional data source for sector

 

  • Consumption: Industry
Solar Thermal Upgrades Sustainable Energy Authority of Ireland m²

Annual renewables and wastes statistics
For the sectors below with some of the following energy products: Solar thermal; Solar photovoltaic; Liquid biofuels;

  • Production
  • Consumption: Energy sector
  • Consumption: Residential
  • Stocks
  • Infrastructure

Statistics on final energy consumption in households

For the sector below;

  • Residential
Solar New Builds Sustainable Energy Authority of Ireland m²

Annual Renewables and Wastes Statistics

For the sectors below with some of the following energy products: Solar thermal; Solar photovoltaic; Liquid biofuels;

Additional source for sector

  • Not available.

Statistics on final energy consumption in households

For the sector below;

  • Residential
Wind Autoproducers Sustainable Energy Authority of Ireland Capacity, Electricity used on site, Electricity exported

Annual renewables and wastes statistics

  • Transformation sector
Biofuels Sustainable Energy Authority of Ireland Opening stock
Imports
Purchases from listed parties
Exports
Biofuels produced
Transformation
Own consumption
Closing stock
Total Sales (observed)
Sales to listed parties
Marine bunkers
Aviation fuels
Refinery production

Annual renewables and wastes statistics
For the sectors below with some of the following energy products: Solar thermal; Solar photovoltaic; Liquid biofuels;

  • Consumption: Transport
Landfill Gas Sustainable Energy Authority of Ireland Capacity, Electricity generated Not applicable.
Other Biogas Sustainable Energy Authority of Ireland Capacity, Volume of gas, Energy Produced, Calorific Value, Operating Hours, Gross Electricity Generated, Net Electricity Generated, Electricity exported to grid, Heat Produced, Heat Usefully Employed, Heat Sold, Sales of Gas Not applicable.
Heat Pumps Sustainable Energy Authority of Ireland Unit Type

Annual renewables and wastes statistics
For the sectors below with some of the following energy products: Ambient heat;

  • Production
  • Consumption: Commercial and public services
  • Consumption: Residential

Statistics on final energy consumption in households

For the sector below;

  • Residential
Non Energy Fuels Sustainable Energy Authority of Ireland Imports, Exports

Annual oil and petroleum products statistics
For the sectors below with some of the following energy products: White spirit and SPB; Lubricants; Bitumen; Paraffin waxes;

  • Transformation sector / Refinery
  • Production
  • Consumption: Energy sector
  • Consumption: Industry
  • Consumption: Transport
  • Consumption: Residential
  • Consumption: Other
  • Trade (imports / exports)
  • Stocks
  • Infrastructure
  • Calorific values
Solar PV Sustainable Energy Authority of Ireland

Capacity

Electricity Generated

Annual electricity and heat statistics
For the sectors below with some of the following energy products: Solar;

  • Production
  • Transformation sector
  • Consumption: Energy sector
  • Infrastructure

Annual renewables and wastes statistics
For the sectors below with some of the following energy products: Solar thermal; Solar photovoltaic; Liquid biofuels;

  • Transformation sector
Electricity in Transport Sustainable Energy Authority of Ireland Electricity Consumption

Annual electricity and heat statistics
For the sectors below with some of the following energy products: Electricity;

  • Transport sector: Rail
Crude Oil Imports Sustainable Energy Authority of Ireland Imports

Monthly crude oil statistics

For the sectors below:

  • Imports
  • Crude Oil Type
  • Import Price
Biofuel Feedstocks Sustainable Energy Authority of Ireland Biofuel Feedstocks

Short Assessment of Renewable Energy Sources

  • Compliant biofuels in transport
Residential End Use Sustainable Energy Authority of Ireland Residential End Use

 

Statistics on final energy consumption in households

 

For the sectors below with some of the following energy products: Electricity; Gas; Solid Fuels; LPG; Other kerosene; Gas/diesel oil; solar thermal; solid biofuels and ambient heat

 

  • Space heating
  • Water heating
  • Cooking
  • Lighting and appliances
  • Other end uses
  • Calorific values

 
Business Energy End Use Sustainable Energy Authority of Ireland Business Energy End Use

Annual solid fuels statistics

For the sectors below;

  • Industry
  • Commercial and public services

Annual electricity and heat statistics
For the sectors below;

  • Industry
  • Commercial and public services

Annual renewables and wastes statistics

For the sectors below;

  • Industry
  • Commercial and public services


Monthly gas statistics

For the sectors below;

  • Industry
  • Commercial and public services

Monthly oil statistics

For the sectors below;

  • Industry
  • Commercial and public services
3.2. Classification system

Classifications for each dataset described in section 3.1.1
3.2.1. Classification system – industry sector, products and geographical
Name of the national data collection  Industry sector Products Geographical
Electricity Supply NACE rev. 2 (EU classification of economic activities) CN codes (Combined Nomenclature, EU) NUTS (Nomenclature of territorial units for statistics)
Solid Fuel NACE rev. 2 (EU classification of economic activities) National classification: Our survey collects data on both Sod peat and milled peat – we use different calorific values for each and combine the weighted average total to complete the annual survey. NUTS (Nomenclature of territorial units for statistics)
Oil NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Monthly Gas NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Electricity Generation NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Electricity Consumption NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Annual Gas NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Combined Heat and Power NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Wood Fuel Suppliers NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Wood Waste NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Municipal and Other Waste NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Solar Thermal Upgrades NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Solar New Builds NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Wind Autoproducers NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Biofuels NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Landfill Gas NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Other Biogas NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Heat Pumps NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Non Energy Fuels NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Solar PV NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Electricity in Transport NACE rev. 2 (EU classification of economic activities) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Crude Oil Imports NUTS (Nomenclature of territorial units for statistics) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Biofuel feedstocks NUTS (Nomenclature of territorial units for statistics) Classification in Articles 17 & 18 of Directive 2009/28/EC NUTS (Nomenclature of territorial units for statistics)
Residential End Use NUTS (Nomenclature of territorial units for statistics) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
Business Energy End Use NUTS (Nomenclature of territorial units for statistics) Classification in Regulation (EC) 1099/2008 on energy statistics NUTS (Nomenclature of territorial units for statistics)
3.3. Coverage - sector

Energy statistics data covers all major sectors of the economy that are involved in the production, trade, energy transformation or energy consumption.
3.4. Statistical concepts and definitions

Definitions of Regulation (EC) No 1099/2008 on energy statistics apply.
3.5. Statistical unit

See table under 3.5.1.
3.5.1. Statistical unit – Data collections
Name of the national data collection Reporting unit
Electricity Supply the Enterprise
Solid Fuel the Enterprise
Oil the Enterprise
Monthly Gas the Enterprise
Electricity Generation the Enterprise
Electricity Consumption the Institutional Unit
Annual Gas the Institutional Unit
Combined Heat and Power the Enterprise
Wood Fuel Suppliers the Enterprise
Wood Waste the Enterprise
Municipal and Other Waste the Institutional Unit
Solar Thermal Upgrades the Institutional Unit
Solar New Builds the Institutional Unit
Wind Autoproducers the Enterprise
Biofuels the Institutional Unit
Landfill Gas the Enterprise
Other Biogas the Enterprise
Heat Pumps the Enterprise Group
Non Energy Fuels National Statistical Institute
Solar PV Data gathered from numerous sources
Electricity in Transport the Institutional Unit
Crude Oil Imports the Enterprise

Biofuel Feedstocks

 the Institutional Unit
Residential End-Use the Institutional Unit
Business Energy End Use National Statistical Institute
3.6. Statistical population
Name of the national data collection Statistical Population
Electricity Supply Ireland's Transmission System Operator
Solid Fuel Large solid fuel distributors and importers
Oil Administrative data which covers major oil suppliers
Monthly Gas Ireland's Gas Network Operator
Electricity Generation All electricity generators
Electricity Consumption Administrative data which covers all electricity suppliers
Annual Gas Ireland's Gas Network Operator
Combined Heat and Power Survey of CHP site operators with multiple sites and survey of individual sites not covered by an operator
Wood Fuel Suppliers Survey of all large wood fuel suppliers
Wood Waste Administrative data from Emissions Trading Scheme
Municipal and Other Waste Administrative data from Emissions Trading Scheme
Solar Thermal Upgrades Administrative data from grants provided for solar thermal upgrades
Solar New Builds Administrative data from the Building Energy Rating database
Wind Autoproducers Survey of all sites with wind autogeneration
Biofuels Administrative data which covers major oil suppliers
Landfill Gas Survey of landfill gas operators
Other Biogas Survey of biogas sites
Heat Pumps Administrative data from the Building Energy Rating database
Non Energy Fuels Administrative data from National Statistical Institute
Solar PV Administrative data from the Building Energy Rating database
Electricity in Transport Survey of light rail and tram operators
Crude Oil Imports Survey completed by the oil refinery

Biofuel Feedstocks

 Administrative data from the Biofuels Obligation Scheme
Residential End-Use Model using data from the Building Energy Rating database
Business Energy End Use Administrative data from National Statistical Institute
3.7. Reference area

The national territory.
3.8. Coverage - Time

See table under 3.8.1.
3.8.1. Coverage time – Data collections
Name of the national data collection Coverage time
Electricity Supply  1990-2020 
Solid Fuel 1990-2020 
Oil  1990-2020 
Monthly Gas 1990-2020 
Electricity Generation  1990-2020 
Electricity Consumption  1990-2020 
Annual Gas  1990-2020 
Combined Heat and Power  1990-2020 
Wood Fuel Suppliers  1990-2020 
Wood Waste  1990-2020 
Municipal and Other Waste  2005-2020 
Solar Thermal Upgrades  2006-2020 
Solar New Builds  2009-2020 
Wind Autoproducers  2012-2020 
Biofuels  1990-2020 
Landfill Gas  1996-2020 
Other Biogas  1990-2020 
Heat Pumps  2002-2020 
Non Energy Fuels  1990-2020 
Solar PV  2009-2020 
Electricity in Transport  1990-2020 
Crude Oil Imports 2019-2020 
Biofuel feedstocks 2012-2020 
Residential End Use 2015-2020 
Business Energy End Use 2009-2018
3.9. Base period

Not applicable.


4. Unit of measure Top

See table under 4.1.
4.1. Unit of measure – data collections
Name of the national data collection Unit of measurement
Electricity Supply
  • MWh, GWh, TWh
Solid Fuel
  • ktonnes
Oil
  • ktonnes
  • litres
Monthly Gas
  • MJ, GJ, TJ
  • m³
  • MWh, GWh, TWh
Electricity Generation
  • ktonnes
  • MJ, GJ, TJ
  • m³
  • MWh, GWh, TWh
Electricity Consumption
  • MWh, GWh, TWh
Annual Gas
  • MJ, GJ, TJ
  • m³
Combined Heat and Power
  • ktonnes
  • MJ, GJ, TJ
  • MWh, GWh, TWh
  • kW, MW, GW
Wood Fuel Suppliers
  • ktonnes
Wood Waste
  • ktonnes
  • MJ, GJ, TJ
  • MWh, GWh, TWh
  • kW, MW, GW
Municipal and Other Waste
  • ktonnes
  • MJ, GJ, TJ
Solar Thermal Upgrades
  • m²
Solar New Builds
  • m²
Wind Autoproducers
  • MWh, GWh, TWh
  • kW, MW, GW
Biofuels
  • ktonnes
  • litres
Landfill Gas
  • MWh, GWh, TWh
  • kW, MW, GW
Other Biogas
  • MJ, GJ, TJ
  • m³
  • MWh, GWh, TWh
  • kW, MW, GW
Heat Pumps
  • Number of units
Non Energy Fuels
  • ktonnes
Solar PV
  • kW, MW, GW
Electricity in Transport
  • MWh, GWh, TWh
Crude Oil Imports
  • tonnes, barrels
Biofuel feedstocks
  • litres
Residential End Use
  • TJ
Business Energy End Use
  • toe


5. Reference Period Top

See table under 5.1
5.1. Reference period – data collections
Name of the national data collection Reference period
Electricity Supply 1 month
Solid Fuel 1 month
Oil 1 month
Monthly Gas 1 month
Electricity Generation 1 month
Electricity Consumption 1 year
Annual Gas 1 year
Combined Heat and Power 1 year
Wood Fuel Suppliers 1 year
Wood Waste 1 year
Municipal and Other Waste 1 year
Solar Thermal Upgrades 1 year
Solar New Builds 1 year
Wind Autoproducers 1 year
Biofuels 1 year
Landfill Gas 1 year
Other Biogas 1 year
Heat Pumps 1 year
Non Energy Fuels 1 year
Solar PV 1 year
Electricity in Transport 1 year
Crude Oil Imports 1 month
Biofuel feedstocks 1 year
Residential End Use 1 year
Business Energy End Use 1 year


6. Institutional Mandate Top
6.1. Institutional Mandate - legal acts and other agreements

The Sustainable Energy Authority of Ireland was established as Ireland’s national energy authority under the Sustainable Energy Act 2002. The Act defines SEAI’s relationship with the National Statistical Institute, through co-operation with the Central Statistics Office and acting as an agent of that Office.

Sustainable Energy Act, 2002 http://www.irishstatutebook.ie/eli/2002/act/2/enacted/en/pdf  
6.1.1. National legal acts and other agreements
Name of the national data collection National legal framework Reference of national legal text
Electricity Supply Voluntary data collection  
Solid Fuel Voluntary data collection  
Oil Mandatory (included in a national legal act) National Oil Reserves Agency Act 2007 (No. 7 of 2007) and associated Returns and Levy Regulations SI 567 of 2007 and SI220 of 2009
Monthly Gas Voluntary data collection  
Electricity Generation Voluntary data collection  
Electricity Consumption Voluntary data collection  
Annual Gas Voluntary data collection  
Combined Heat and Power Voluntary data collection  
Wood Fuel Suppliers Mandatory (included in a national legal act) European Union (Energy Efficiency Obligation Scheme) Regulations 2014, (S.I. No. 131 of 2014)
Wood Waste Voluntary data collection  
Municipal and Other Waste Voluntary data collection  
Solar Thermal Upgrades Voluntary data collection  
Solar New Builds Voluntary data collection  
Wind Autoproducers Voluntary data collection  
Biofuels Voluntary data collection  
Landfill Gas Voluntary data collection  
Other Biogas Voluntary data collection  
Heat Pumps Voluntary data collection  
Non Energy Fuels Voluntary data collection  
Solar PV Voluntary data collection  
Electricity in Transport Voluntary data collection  
Crude Oil Imports Voluntary data collection  
Biofuel feedstocks Mandatory (included in a national legal act) EUROPEAN UNION (GREENHOUSE GAS EMISSION REDUCTIONS, CALCULATION METHODS AND REPORTING REQUIREMENTS) REGULATIONS 2017, (S.I. No. 160 of 2017)
Residential End Use Modelling Exercise  
Business Energy End Use Mandatory (included in a national legal act) STATISTICS (BUSINESS ENERGY USE SURVEY) ORDER 2018 (S.I. No. 509 of 2018)
6.2. Institutional Mandate - data sharing

See table under 6.2.1.
6.2.1. Institutional mandate – data sharing – national data collections
Name of the national data collection Situation, if more than 1 body is involved in this data collection Degree of integration of this data collection among different National bodies
Electricity Supply Not applicable. Not applicable.
Solid Fuel Not applicable. Not applicable.
Oil Not applicable. Not applicable.
Monthly Gas Coordination based on practice (no written procedure) Alignment even if not the same questionnaires/classifications are used
Electricity Generation Not applicable. Not applicable.
Electricity Consumption Not applicable. Not applicable.
Annual Gas Not applicable. Not applicable.
Combined Heat and Power Not applicable. Not applicable.
Wood Fuel Suppliers Not applicable. Not applicable.
Wood Waste Not applicable. Not applicable.
Municipal and Other Waste Not applicable. Not applicable.
Solar Thermal Upgrades Not applicable. Not applicable.
Solar New Builds Not applicable. Not applicable.
Wind Autoproducers Not applicable. Not applicable.
Biofuels Not applicable. Not applicable.
Landfill Gas Not applicable. Not applicable.
Other Biogas Not applicable. Not applicable.
Heat Pumps Not applicable. Not applicable.
Non Energy Fuels Not applicable. Not applicable.
Solar PV Not applicable. Not applicable.
Electricity in Transport Not applicable. Not applicable.
Crude Oil Imports Not applicable. Not applicable.
Biofuel feedstocks Not applicable. Not applicable.
Residential End Use Not applicable. Not applicable.
Business Energy End Use Not applicable. Not applicable.


7. Confidentiality Top

See annex



Annexes:
Annex_Confidentiality in EU data collections
7.1. Confidentiality - policy

Regulation (EC) No 223/2009 on European statistics (recitals 23-27, 31-32 and Articles 20-26) applies.
7.2. Confidentiality - data treatment

Confidential data are not shown. The most common approach is to present aggregation of the confidential data point with non-confidential data in the nearest suitable data point in order to provide good approximations for consumption (e.g.).
7.2.1. Confidentiality – EU data collections

EU DATA COLLECTION

CONFIDENTIAL DATA POINTS

Crude oil imports register – Short term monthly statistics

Yes

Oil and petroleum products – Short term monthly statistics

No

Natural gas - short term monthly statistics

No

Solid fuels - monthly statistics

Yes

Electricity - monthly statistics

No

Oil and petroleum products - monthly statistics

No

Natural gas - monthly statistics

No

Nuclear - annual statistics

No

Electricity and heat - annual statistics

No

Natural gas - annual statistics

No

Oil and petroleum products - annual statistics

No

Renewables and wastes - annual statistics

Yes

Solid fossil fuels and manufactured gases - annual statistics

Yes

Short Assessment of Renewable Energy Sources (SHARES)

No

Households - detailed annual statistics on final energy consumption

No


8. Release policy Top

The main statistical release is Ireland’s Annual Energy Balance, which is available from the SEAI website. It is accessible and used by several stakeholder, both within the national statistical system and externally. Details on the publication of the provisional and final statistical releases are available on the website. A provisional energy balance for the previous calendar year (termed Y-1) is released at the end of April, with the balance finalised in October of that year. Further details on the release calendar are available on the SEAI website.
8.1. Release calendar

https://www.seai.ie/data-and-insights/seai-statistics/release-calendar/ 
8.2. Release calendar access

https://www.seai.ie/data-and-insights/seai-statistics/release-calendar/ 
8.3. Release policy - user access

Under the head of the Data & Insights Department in SEAI, we have sole responsibility for deciding on the content and timing of statistical releases (subject to the completeness of the data and requirements associated with international reporting obligations). All general users have equal access to statistical releases at the same time, with data published on the SEAI website.  Privileged access to data may be provided to organisations that work closely with SEAI. Access is not provided to the individual survey data.


9. Frequency of dissemination Top

See table under 9.1.
9.1. Frequency of dissemination – national data collections
Name of the national data collection Frequency of dissemination
Electricity Supply  monthly
Solid Fuel annual 
Oil monthly 
Monthly Gas monthly 
Electricity Generation monthly 
Electricity Consumption annual 
Annual Gas annual 
Combined Heat and Power annual 
Wood Fuel Suppliers annual 
Wood Waste annual 
Municipal and Other Waste annual 
Solar Thermal Upgrades annual 
Solar New Builds  annual
Wind Autoproducers  annual
Biofuels annual 
Landfill Gas annual 
Other Biogas annual 
Heat Pumps annual 
Non Energy Fuels annual 
Solar PV annual 
Electricity in Transport annual 
Crude Oil Imports monthly
Biofuel feedstocks annual
Residential End Use annual
Business Energy End Use annual


10. Accessibility and clarity Top

SEAI statistical outputs are accompanied by clear glossaries and acronym-lists that define the appropriate terminology, definitions, and classifications used. These are included in both survey (sourcing) and questionnaire (submitting) templates, as well as the Annual Energy Balance and Energy in Ireland report. SEAI has a Data Strategy in place with an emphasis on open, accessible, and linked data, and shares statistical outputs through its own website and Ireland’s national open-data portal - https://data.gov.ie/.
10.1. Dissemination format - News release

An SEAI press release usually accompanies or precedes the publication of the Annual Energy Balance and certain key reports.

19 May 2021. Provisional Energy Balance 2020. https://www.seai.ie/news-and-media/provisional-energy-balanc/

8 October 2021. SEAI publishes Ireland's 2020 National Energy Balance. https://www.seai.ie/news-and-media/seai-publishes-irelands-2/

15 December 2021. SEAI publishes Energy in Ireland report 2021. https://www.seai.ie/news-and-media/energy-in-ireland-2021/

4 May 2022. SEAI publishes the Interim Energy Balance 2021. https://www.seai.ie/news-and-media/interim-energy-balance-20/
10.2. Dissemination format - Publications

National Energy Balance
Our primary statistical release is Ireland’s National Energy Balance. The energy balance is an accounting framework for energy statistics presented in energy units (ktoe, TJ, GWh). It shows the flow of energy from production and transformation to total final consumption, in the form of a table. https://www.seai.ie/data-and-insights/seai-statistics/key-publications/national-energy-balance/

Energy in Ireland
Our annual publication presents energy statistics on energy production and consumption in Ireland. The report looks at energy trends and underlying drivers. It also examines sectoral consumption, and our progress towards renewable targets. https://www.seai.ie/data-and-insights/seai-statistics/key-publications/energy-in-ireland/

Various sectoral reports are also published every few years.

  • Energy in Transport https://www.seai.ie/data-and-insights/seai-statistics/key-statistics/transport/
  • CO2 Emissions https://www.seai.ie/data-and-insights/seai-statistics/key-publications/co2-emissions-report/
  • Renewable Energy in Ireland https://www.seai.ie/data-and-insights/seai-statistics/key-publications/renewable-energy-in-ireland/
  • Energy in the Residential Sector https://www.seai.ie/data-and-insights/seai-statistics/key-publications/energy-in-residential-sector/
10.3. Dissemination format - online database

SEAI uses modern web-based platforms for statistical release, has a data strategy, and is committed to open-data publication. Energy Balance data have been made available in both PDF and XLSX formats, and there are plans to move to an open-source CSV/RTF format going forward (this is technically difficult given the scale and format-complexity of the Annual Energy Balance). SEAI data is also held in a databank hosted by the Central Statistics Office, where users can select statistical products, and reporting periods, to generate a bespoke download in their preferred format. SEAI has launched an interactive Energy Data portal / dashboard portal that presents statistics in graphical format and allows users to select and download data relevant data.

Energy Data Portal https://www.seai.ie/data-and-insights/seai-statistics/energy-data/

Energy Balance Statistics hosted by the NSI at https://data.cso.ie/product/SEAIEB
10.3.1. Data tables - consultations

Not requested for this metadata collection
10.4. Dissemination format - microdata access

Generally, the microdata collected by SEAI is commercially sensitive or includes confidential personal information (applicants to support grants) and therefore cannot be readily shared. In certain circumstances, requests to access microdata for research purposes may be entertained, but only when subject to strict rules or protocols, e.g. accessing the data from a secure un-networked computer, and having the relevant data-slices vetted and approved before taking them off premises.
10.5. Dissemination format - other

not applicable
10.5.1. Metadata - consultations

Not requested for this metadata collection
10.6. Documentation on methodology

Information on methodology and metadata is available upon request. In certain cases, methodology notes are also published online.

In 2020, we incorporated a major new data set on business energy use for the first time. This is the Business Energy Use Survey (BEUS), first published by the Central Statistics Office in December 2018.  A document detailing this new methodology was published online and can be found at https://www.seai.ie/publications/1990-2018-Revisions-to-Energy-Balance-Supporting-Report.pdf
10.6.1. Metadata completeness - rate

Not requested for this metadata collection
10.7. Quality management - documentation

Quality reports have not yet been published on the SEAI website, though details on the methodology of some of the statistical processes are included in the suite of reports. Progress in this area is somewhat hampered by the fact that Ireland has relatively few actors operating in certain key sectors, which can skew some standard quality report metrics, e.g. statistical outlier detection. 


11. Quality management Top

We are committed to quality and are always striving to improve and ensure accurate, detailed statistics. All data and outputs are analysed and compared with previous releases, and any significant differences investigated and explained. Excel tools are used to complete validation and consistency checks. The impact of any imputation or estimation is considered and explained. Appropriate checks are undertaken to prevent disclosure of confidential information. All outputs must be signed off by the EPSSU Programme Manager before publishing or submitting to Eurostat. A record of the submission is stored and may be viewed during a quality audit. We provide Eurostat with quality reports for energy statistics every five years according to Regulation 1099/ 2008.

In 2015 SEAI signed a Statement of Commitment to the Irish Statistical System Code of Practice (ISSCoP), which is a subset of the ESCoP, and for which the National Statistical Institute has a formal coordination role.

In 2021 SEAI completed a Self-Assessment Questionnaire for Other National Authorities during the 3rd round of ESS peer reviewshttps://www.isscop.ie/
11.1. Quality assurance

We are currently working towards a new Team Strategy, synchronized with the new SEAI strategy, to identify key goals and ensure the long-term objectives of EPSSU serve to continuously improve process and product quality. To improve transparency and explicability, EPSSU data collection processes have been mapped using Microsoft Visio. The EPSSU Team are in the process of remapping these process flows using the Generic Statistical Business Process Model (GSBPM), as recommended by the National Statistical Institute 

Quality guidelines have recently been issued by the National Statistical Institute and will guide us as we improve the quality of our statistics. Procedures are in place to plan, monitor and improve the quality of the statistical processes. This includes peer review where quality improvements are discussed and approved. User feedback is continuously used to guide the usefulness or gaps in the statistics.

 
11.2. Quality management - assessment

See section 11.2.1
11.2.1. Quality assessment – data collections
Name of the national data collection Most important quality problem of this data collection Measures taken in the last 5 years to improve quality of the data collection
Electricity Supply This data is administrative data and so we do not have access to the full breakdown

Engagement with the data supplier to verify totals against other data sources, resulting in the data supplier improving the quality of their data.

Addition of new technologies when required : currently investigating battery storage and how it can be included.
Solid Fuel Poor response rate to the monthly survey 

Implemented a new estimation technique for solid fuel suppliers that do not respond to the monthly survey. This methodology brings the total residential coal consumption in line with sales of coal liable for carbon tax, which was introduced in Ireland in 2013.

Industrial uses and coal use in electricity generation are confirmed with Emissions Trading Scheme data and so no estimation techniques are required here.
Oil The most accurate data is driven by a need to reduce costs (levy) or maximise sales and profits by respondents. This means that this data is usually audited and most correct. Other data leading to Gross inland delivery calculated is not as accurate as there are less financial implications for the respondents.

The OLA system is the national oil data collection system and it was introduced in 2013. The responsibility for oil statistics was handed to SEAI in 2018 and we gained further access to the microdata, allowing us to bring the oil data in line with the National Energy Balances. 

The OLA system is web based and has a number of checks and balances. For example, inter-company sales and purchases are compared by the system each month and inconsistencies are returned to respondents for revision and resubmission.
Monthly Gas   The transmission operator now publishes data online so previous confidentiality procedures are no longer necessary, improving the accuracy of the monthly data.
Electricity Generation Staff at the respondent level not always clear on what data they should provide, due to staff changes or other issues. Verification with the annual ETS data usually highlights these discrepancies We continue to supplement with verified data from the Emissions Trading Scheme on an annual basis. This allows us to verify the sum of the monthly data collection. This has resulted in an improvement of the data accuracy on an annual basis.
Electricity Consumption Delays in survey response due to staff changes and resourcing at the respondent level. New methodology developed in 2018 to allocate consumption in the industry and services sub sectors. This was based on new survey data available from the National Statistical Institute on business energy end use.
Annual Gas Non-residential sub sectoral breakdown not fully available. New methodology developed in 2018 to allocate consumption in the industry and services sub sectors. This was based on new survey data available from the National Statistical Institute on business energy end use.
Combined Heat and Power Many respondents are unable to differentiate between total heat and useful heat and these values are often the same. There are also some non responses in which case estimates from previous years are used. Where there is unit non response, we investigate and use alternative data sources such as publicly available annual EPA reports.
Wood Fuel Suppliers The low response rate Continue to attempt to improve the response rate by telephone follow ups
Wood Waste Low response rate for sawmills Contine to verify against ETS data
Municipal and Other Waste It is possible that some smaller sites not included in ETS may be missed Not available.
Solar Thermal Upgrades The methodology assumes that all solar installations are still active Not available.
Solar New Builds Some installations may be missing Data is now sourced from Ireland's Building Energy Rating database, where renewable electricity technologies are identified.
Wind Autoproducers All sites may not be covered although we endeavour to do so. Not available.
Biofuels Not available. Data can be cross and checked using results from the annual Biofuels Obligation Scheme reports
Landfill Gas It is possible that some plants may have operated on lower or higher efficiency than the default and so the energy input values may not reflect real world values. Data is cross checked by the Environmental Protection Agency
Other Biogas Estimating where there is a non response ETS data used to verify data for certain sites.
Heat Pumps Split between commercial and residential installations is estimated Data is now sourced from Ireland's Building Energy Rating database, where renewable heating technologies are identified.
Non Energy Fuels Not available. Not available.
Solar PV Undercoverage issues. Data is sourced from Ireland's Building Energy Rating database, where renewable electricity technologies are identified.
Electricity in Transport No metered data available for private cars Developed an estimate for private road consumption for electricity using annual milage and average efficiency
Crude Oil Imports Confidentiality issues due to less than three entities This is a new data collection since the last quality report cycle
Biofuel feedstocks Not available. This is a new data collection since the last quality report cycle
Residential End Use Reliant on weighted data provided by the National Statistical Institute  This is a new data collection since the last quality report cycle
Business Energy End Use Two year lag for the administrative data availability. This is a new data collection since the last quality report cycle


12. Relevance Top

See sub components
12.1. Relevance - User Needs

As the parental department of SEAI, and its principle stakeholder, regular consultative workshops take place with Ireland’s DECC (Department of Environment, Climate and Communications). Additionally, bilateral discussions take place with Environmental Protection Agency (EPA), Department of Environment, Community and Local Government (DECLG), Commission for Regulation of Utilities (CRU) and Central Statistics Office (CSO). In particular, dialogue with the EPA resulted in a calibration of SEAI energy statistics outputs, to align and support reporting requirements on air emissions. There is also ongoing interaction with the National Statistical Institute on the future development and expansion of the energy statistical system, particularly in the areas of (1) business energy use, and (2) residential energy end use, and the potential for extracting added-value through access and joining of administrative data sources.
12.2. Relevance - User Satisfaction

User satisfaction of questionnaires submitted by SEAI to Eurostat and IEA are monitored and graded through quality reports, and a “smile scorecard”. The Statistics Team maintains a positive cooperation with many of its data suppliers, which provides an informal channel for monitoring satisfaction with its surveys, and following-up on issues. There is an opportunity for more formal assessment of user satisfaction going forward, but this will need to be balanced by minimising additional reporting burden on the respondents. There is an opportunity for the Statistics Team to leverage in-house expertise from the Behavioural Economics Team to optimise survey formats and reminders to nudge positive behaviour and higher response rates.
12.3. Completeness

See table under 12.3.1.1.
12.3.1. Data completeness - rate

See table under 12.3.1.1.
12.3.1.1. Data completeness - rate – EU data collections

EU DATA COLLECTION

DATA COMPLETENESS - RATE

NUMBER OF MISSING DATA POINTS

Crude oil imports register – Short term monthly statistics

1

 

Oil and petroleum products – Short term monthly statistics

1 

 

Natural gas - short term monthly statistics

1 

 

Solid fuels - monthly statistics

1 

 

Electricity - monthly statistics

1 

 

Oil and petroleum products - monthly statistics

1 

 

Natural gas - monthly statistics

1 

 

Nuclear - annual statistics

1 

 

Electricity and heat - annual statistics

1 

 

Natural gas - annual statistics

1 

 

Oil and petroleum products - annual statistics

1 

 

Renewables and wastes - annual statistics

1 

 

Solid fossil fuels and manufactured gases - annual statistics

1 

 

SHort Assessment of Renewable Energy Sources (SHARES)

1 

 

Households - detailed annual statistics on final energy consumption

1 

 


13. Accuracy Top


Annexes:
ENERGY_QUANTSI_A_2020_an1
13.1. Accuracy - overall

We are committed to quality and continuously strive to improve and ensure accurate, precise, and detailed statistics.

There are several ways that data are validated. Survey data are input to a central spreadsheet and automatic checks are carried out on this data. Using spreadsheets makes the calculation methodology very visible and easy to track and trace. Also, as the data are arranged in timeseries format out of range values are easily spotted and questioned. Any significant changes between months are noted and the respondent is asked to clarify why there is a difference. The explanation is then added as a comment to the spreadsheet.
13.1.1. Accuracy – most common errors for specific data collections
Name of the national data collection Most common errors for this collection
Electricity Supply
  • Measurement errors
  • Processing errors
Solid Fuel
  • Measurement errors
  • Processing errors
  • Sampling errors
Oil
  • Processing errors
  • Sampling errors
Monthly Gas
  • Measurement errors
  • Processing errors
Electricity Generation
  • Measurement errors
  • Processing errors
Electricity Consumption
  • Measurement errors
  • Processing errors
Annual Gas
  • Measurement errors
  • Processing errors
Combined Heat and Power
  • Measurement errors
  • Processing errors
Wood Fuel Suppliers
  • Measurement errors
  • Processing errors
  • Sampling errors
Wood Waste
  • Measurement errors
  • Processing errors
  • Sampling errors
Municipal and Other Waste
  • Measurement errors
  • Processing errors
Solar Thermal Upgrades
  • Processing errors
  • Sampling errors
Solar New Builds
  • Processing errors
  • Sampling errors
Wind Autoproducers
  • Measurement errors
  • Processing errors
  • Sampling errors
Biofuels
  • Measurement errors
  • Processing errors
Landfill Gas
  • Measurement errors
  • Processing errors
Other Biogas
  • Measurement errors
  • Processing errors
  • Sampling errors
Heat Pumps
  • Measurement errors
  • Processing errors
Non Energy Fuels
  • Processing errors
  • Sampling errors
Solar PV
  • Processing errors
  • Sampling errors
Electricity in Transport
  • Measurement errors
  • Processing errors
Crude Oil Imports
  • Measurement errors
  • Processing errors
Biofuel feedstocks
  • Processing errors
  • Sampling errors
Residential End Use
  • Processing errors
Business Energy End Use
  • Coverage errors
  • Measurement errors
  • Non-response errors
  • Processing errors
13.2. Sampling error

Sample selection is not highly relevant to many energy statistics produced by SEAI, because where we can we work to survey all energy suppliers in Ireland. This is possible, due to the relatively small numbers of actors in the system. Enormous consumption datasets are obtained and contained within the National Statistical Institute, either through comprehensive coverage such as acquiring meter data or collecting and curating census results. Sampling for the Business End-Use Survey is covered here:  https://www.cso.ie/en/methods/surveybackgroundnotes/businessenergyuse/
13.2.1. Sampling error - indicators

Not requested for this metadata collection
13.3. Non-sampling error

Sample selection is not highly relevant to many energy statistics produced by SEAI, because where we can we work to survey all energy suppliers in Ireland. This is possible, due to the relatively small numbers of actors in the system.
13.3.1. Coverage error

See annex
13.3.1.1. Over-coverage - rate

See annex
13.3.1.2. Common units - proportion

See annex
13.3.2. Measurement error

See annex
13.3.3. Non response error

See annex
13.3.3.1. Unit non-response - rate

See annex
13.3.3.2. Item non-response - rate

See annex
13.3.4. Processing error

There may be some processing errors with various data collections when transferring data from Excel files and emails to our main database or already present within any data submitted to the SEAI. 
13.3.5. Model assumption error

An Excel model is used to produce the data required to complete annual statistics on final consumption in households.  This is called the Irish Residential Energy End-Use Model (IREEUM).

IREEUM is based on a modified version of the Irish Dwelling Energy Assessment Procedure (DEAP) . DEAP was developed by SEAI to produce Energy Performance Certificates (EPC) for residential buildings, as required by the Energy performance in buildings Directive (EPBD). In Ireland EPCs are known as Building Energy Ratings (BER). To calculate a BER using DEAP, a detailed survey of the physical characteristics of each dwelling is required, for example, surface area and U-value of building elements, heat system characteristics, etc. The detailed data collected during these surveys for every BER carried out are stored centrally by SEAI in the BER database. This database contains data on over 1 million dwellings, or more than 50% of the entire stock of permanently occupied dwellings in Ireland. A limited version of this database is publicly available on the SEAI website .

 

During an annual IREEUM update project, the Central Statistics Office used the BER database to produce a sub sample weighted to be representative of the entire housing stock of permanently occupied dwellings. IREEUM runs a modified DEAP calculation for each NSI selected dwelling to generate the residential energy demand split by fuel and end use for each. National Statistical Institute weightings are then applied to scale the sample up to the entire stock. The results are summed to give an estimate of total fuel use for each end use. The relative shares of the different end uses for each fuel type is the key result from the model, rather than the absolute values.

A new weighted sample was not available for 2020 which means 2020 data will have to be revised in the future.


14. Timeliness and punctuality Top
14.1. Timeliness

 See table under 14.1.3.
14.1.1. Time lag - first result

Not requested for this metadata collection.
14.1.2. Time lag - final result

Not requested for this metadata collection.
14.1.3. Timeliness – deadlines for data transmission for each national data collection
Name of the national data collection Deadline for data transmission
Electricity Supply 1 month after the end of the reference period
Solid Fuel 2 months after the end of the reference period
Oil 1 month after the end of the reference period
Monthly Gas 1 month after the end of the reference period
Electricity Generation 2 months after the end of the reference period
Electricity Consumption 9 months after the end of the reference period
Annual Gas 9 months after the end of the reference period
Combined Heat and Power 9 months after the end of the reference period
Wood Fuel Suppliers 3 months after the end of the reference period
Wood Waste 9 months after the end of the reference period
Municipal and Other Waste 9 months after the end of the reference period
Solar Thermal Upgrades 9 months after the end of the reference period
Solar New Builds 9 months after the end of the reference period
Wind Autoproducers 9 months after the end of the reference period
Biofuels 9 months after the end of the reference period
Landfill Gas 9 months after the end of the reference period
Other Biogas 9 months after the end of the reference period
Heat Pumps 9 months after the end of the reference period
Non Energy Fuels 9 months after the end of the reference period
Solar PV 9 months after the end of the reference period
Electricity in Transport 9 months after the end of the reference period
Crude Oil Imports 1 month after the end of the reference period
Biofuel feedstocks 5 months after the end of the reference period
Residential End Use 12 months after the end of the reference period
Business Energy End Use 24 months after the end of the reference period
14.2. Punctuality

All data releases are punctual
14.2.1. Punctuality - delivery and publication

Not requested for this metadata collection.


15. Coherence and comparability Top

See sub components
15.1. Comparability - geographical

Data are currently not broken down and disseminated by national regions at a NUTS2, NUTS3, province, county or Local Authority level.

Data are compiled and submitted to Eurostat and other international organisations as per definitions, classifications and instructions, and in the rare instances where divergences exist, this is commented upon in the submission remarks.
15.1.1. Asymmetry for mirror flow statistics - coefficient

Not requested for this metadata collection.
15.2. Comparability - over time

Energy balance data from 1990 are available for download on the EPSSU website. These data are presented in ktoe (kilo tonnes of oil equivalent) which also allows the comparison of different fuels. The format is consistent across all years. This provides coherence and allows comparison of data over time.
15.2.1. Length of comparable time series

Energy balance data from 1990 are available for download on the EPSSU website. 
15.3. Coherence - cross domain

Statistics from various sources can be compared in a straightforward way. Energy inputs can be compared to data available under the Emissions Trading Scheme. Electricity consumption in the final sectors is available from the energy regulator and our National Statistical Institute.  Where there are differences, these are discussed and the quality assessed.
15.3.1. Coherence - sub annual and annual statistics

Data collected for the monthly electricity survey is collected from electricity generators. At the end of the year, the 12-month aggregated data can be compared to the data collected by the EPA under the emissions trading scheme. Where there is a difference the ETS data are used for the annual questionnaires as this has been thoroughly audited.
15.3.2. Coherence - National Accounts

not applicable
15.4. Coherence - internal

Efforts are made to ensure that statistics are internally coherent and consistent between monthly, annual and other periodicities. In certain cases, some data are only available on an annual basis and so estimates must be made when reporting monthly data, with revisions later.


16. Cost and Burden Top

In 2020 the Energy Statistics Team consisted of 4 permanent team members

  • Programme Manager x 1. Salary scale €69,000 to €89,000
  • Programme Executive x 2, 1 @ 100%, 1 @ 80%. Salary scale €44,000 to €65,000
  • Programme Assistant x 1. Salary scale €24,000 to €49,000

Total actual salary costs are confidential

Respondent burden is minimised where possible by using existing data sources or customising surveys for individual sites


17. Data revision Top

See sub concepts
17.1. Data revision - policy

When better data becomes available, or an error in published data is discovered, revised data are then included in the next statistical release. Details of these revisions are documented in EPSSU’s annual report, Energy in Ireland. This report is available on the SEAI website and in hard copy. When submitting revised annual data to Eurostat, the revision is noted. Where there is advance note of a revision, a revision notice form is submitted to Eurostat through eDamis. Currently, there is no formal revision policy in place, but this will be addressed in future EPSSU Operational Planning.
17.2. Data revision - practice

Information Revisions Policy: No formal revision policy drafted. Typically a data revision will apply to all variables in the survey as it will be the result of a non-response or late response. Occasionally one data point will be revised if an error has been identified. This could occur with any data point.

The average number of revisions (planned and unplanned): Revisions for any month might vary from 0 revisions up to approx. 3 revisions for a month.

The main reasons for revisions, and the extent to which the revisions improved accuracy: 

  • Data revised due to late submissions;
  • Accuracy improved due to estimations made for the late submissions
  • Data revised if errors are discovered after the original submission date 
17.2.1. Data revision - average size

Not requested for this metadata collection.


18. Statistical processing Top

See sub concepts
18.1. Source data

See table under 18.1.1

Note that entire data sets obtained from the CSO (NSI), etc., are being classed as a sample size of 1. We query one "supplier" to obtain this information, even if this aggregated data may be (and often is) the result of millions of aggregated data points collated, vetted and compiled by the recipient of our query. All statistical processing with respect to sample size and stratification, etc., is carried out by the data suppliers.
18.1.1. Source data – data collections
Name of the national data collection Main data collection method Target population Population frame Sample size
Electricity Supply Use of administrative data (e.g. customs data or business registers) 1 1 1
Solid Fuel Sample census (e.g. use of a threshold): Only large suppliers surveyed 5 5 5
Oil Sample census (e.g. use of a threshold): All companies liable for NORA levy 25 25 25
Monthly Gas Census 2 2 2
Electricity Generation Census 12 12 12
Electricity Consumption Use of administrative data (e.g. customs data or business registers) 1 1 1
Annual Gas Use of administrative data (e.g. customs data or business registers) 1 1 1
Combined Heat and Power Census 463 25 25
Wood Fuel Suppliers Census 79 79 79
Wood Waste Sample census (e.g. use of a threshold) 8 8 8
Municipal and Other Waste Use of administrative data (e.g. customs data or business registers) 2 2 2
Solar Thermal Upgrades Use of administrative data (e.g. customs data or business registers) 1 1 1
Solar New Builds Use of administrative data (e.g. customs data or business registers) 1 1 1
Wind Autoproducers Census 15 15 15
Biofuels Use of administrative data (e.g. customs data or business registers) 1 1 1
Landfill Gas Census 23 4 4
Other Biogas Census 23 19 19
Heat Pumps Use of administrative data (e.g. customs data or business registers) 1 1 1
Non Energy Fuels Use of administrative data (e.g. customs data or business registers) 1 1 1
Solar PV Estimations Not available. Not available. Not available.
Electricity in Transport Use of administrative data (e.g. customs data or business registers) 2 2 2
Crude Oil Imports Census  1  1  1
Biofuel feedstocks Use of administrative data (e.g. customs data or business registers)  1  1  1
Residential End Use Excel Model  Not available.  Not available.  Not available.
Business Energy End Use Use of administrative data (e.g. customs data or business registers)  1  1  1
18.2. Frequency of data collection

See table under 18.2.1.
18.2.1. Frequency of data collection – national data collections
Name of the national data collection Frequency of transmission
Electricity Supply Once per month
Solid Fuel Once per month
Oil Once per month
Monthly Gas Once per month
Electricity Generation Once per month
Electricity Consumption Once per year
Annual Gas Once per year
Combined Heat and Power Once per year
Wood Fuel Suppliers Once per year
Wood Waste Once per year
Municipal and Other Waste Once per year
Solar Thermal Upgrades Once per year
Solar New Builds Once per year
Wind Autoproducers Once per year
Biofuels Once per year
Landfill Gas Once per year
Other Biogas Once per year
Heat Pumps Once per year
Non Energy Fuels Once per year
Solar PV Once per year
Electricity in Transport Once per year
Crude Oil Imports Once per month
Biofuel feedstocks Once per year
Residential End Use Once per year
Business Energy End Use Once per year
18.3. Data collection
Name of the national data collection Main data collection method
Electricity Supply data received via email
Solid Fuel data received via Excel survey, see annex
Oil data downloaded online
Monthly Gas data received via email
Electricity Generation data received via Excel survey, see annex
Electricity Consumption data downloaded online
Annual Gas data received via Excel survey, see annex
Combined Heat and Power data received via Excel survey, see annex
Wood Fuel Suppliers data received via Excel survey, see annex
Wood Waste data received via Excel survey, see annex
Municipal and Other Waste data received via email
Solar Thermal Upgrades data received via email
Solar New Builds data received via email
Wind Autoproducers data received via Excel survey, see annex
Biofuels data downloaded online
Landfill Gas data received via Excel survey, see annex
Other Biogas data received via Excel survey, see annex
Heat Pumps data received via email
Non Energy Fuels data received via email
Solar PV data downloaded from internal database
Electricity in Transport data received via email
Crude Oil Imports data received via email
Biofuel feedstocks data downloaded online
Residential End Use Excel Model
Business Energy End Use data received via Excel survey, see annex


Annexes:
2020 Biogas Survey
2020 SEAI Biomass Survey
2021 SEAI Wood Survey
2020 SEAI CHP Operator Survey
2020 SEAI LFG Survey
2020 SEAI Wind Autoproducer Survey
2020 SEAI Natural Gas Survey
SEAI Electricity Generator Survey
SEAI Solid Fuel Monthly Survey
18.4. Data validation

See table under 18.4.1.
18.4.1. Data validation – national data collections
Name of the national data collection Operations performed to this collection in order to improve data quality (e.g. checks between monthly, quarterly and annual, verification of time series, investigation of outliers…)
Electricity Supply
  • Time series data is used to verify trends
  • Net to gross factors are recalculated annually based on the monthly Electricity Generation survey
  • Verified Emissions Trading Data on fuel inputs for electricity generation is used to verify the electricity outputs provided in this survey.
Solid Fuel
  • Any significant changes between months are noted and the respondent is asked to clarify why there is a difference. The explanation is then added as a comment to the spreadsheet.
  • A statistical difference calculation is used which is the observed sales minus the calculated sales. If this is not equal to zero then there is usually an error somewhere so we return the survey to the respondent and ask for the error to be rectified.
  • A check is also run to check that the opening stock of the current month is equal to the closing stock of the previous month. Again, if this does not match the respondent is asked to clarify
  • Data verified against annual carbon tax data
Oil
  • Any significant changes between months are noted and the respondent is asked to clarify why there is a difference. A statistical difference calculation is used which is the observed sales minus the calculated sales. If this is not equal to zero then there is usually an error somewhere so we return the form to the respondent and ask for the error to be rectified.
  • A check is also run to check that the opening stock of the current month is equal to the closing stock of the previous month. Again, if this does not match the respondent is asked to clarify. Respondents have to resubmit the monthly return in respect of any month where revisions are required
Monthly Gas
  • Any significant change is noted and the data provider is asked to clarify why there is a difference. This may result in a revision.
Electricity Generation
  • Efficiencies are checked using the fuel inputs and outputs. Any outliers are queried.
  • Time series data is used to verify trends
  • Fuel inputs are compared to verified Emissions Trading Scheme data on an annual basis
Electricity Consumption
  • Statistical difference of electricity final consumption and that available for final consumption is used to verify the data
Annual Gas
  • Data verified against publicly available data
  • Statistical differences used to verify data
Combined Heat and Power
  • Automated efficiency checks implemented to highlight any errors or outliers
Wood Fuel Suppliers
  • Statistical difference used to verify the survey returns
Wood Waste
  • Boardmill data verified against ETS data
Municipal and Other Waste Not available.
Solar Thermal Upgrades Not available.
Solar New Builds Not available.
Wind Autoproducers
  • Time series verified
Biofuels
  • Time series verified
Landfill Gas
  • Time series verified
  • List of sites verified with the Environmental Protection Agency and new ones highlighted
Other Biogas
  • Time series verified
  • Data verified against ETS data where available
Heat Pumps
  • Time series verification
Non Energy Fuels
  • Time series verification
Solar PV Not available.
Electricity in Transport Time series verified
Crude Oil Imports  Time series verification
Biofuel feedstocks

Time series verification
Residential End Use

Time series verification
Business Energy End Use

Time series verification
18.5. Data compilation

See table under 18.5.2.
18.5.1. Imputation - rate

Not requested for this metadata collection
18.5.2. Data compilation – data collections
Name of the national data collection Additional techniques used for the compilation of the final data set Details
Electricity Supply
  • Estimation techniques
  • Net electricity generation received from the Transmission System Operator
  • Estimated factor used to convert to Gross Electricity
  • For annual questionnaires fuel inputs are used to split outputs e.g. biomass co-firing with peat is reported under peat generation only
Solid Fuel
  • Confidentiality techniques
  • Imputing missing/non-response rate
  • Estimation techniques
  • Cross-checking techniques
  • Incorrect data is adjusted or corrected

Estimation Techniques:

In the case of non-responses we will estimate the data using an average of the last 12 months data until the respondent has replied.

To cover the smaller units that aren’t included in the survey due to the cut-off threshold, annual carbon tax data available from Revenue is used to estimate sales to the residential sector not included in the monthly survey.
Oil Not available. Incorrect data are adjusted or corrected
Monthly Gas

Not available.

Incorrect data are adjusted or corrected
Electricity Generation
  • Estimation techniques
  • Cross-checking techniques
  • Incorrect data is adjusted or corrected
 Data is estimated in the case of delayed responses
Electricity Consumption
  • Estimation techniques
 The allocation of electricity consumed in the industry and services sectors has now been improved using the results from a new business energy use survey.
Annual Gas
  • Cross-checking techniques
  • Incorrect data is adjusted or corrected

Annual gas data is cross checked with monthly data. Natural gas used for CHP reported in this survey is replaced with that from the individual CHP survey

The allocation of gas consumed in the industry and services sectors has now been improved using the results from a new business energy use survey.
Combined Heat and Power
  • Imputing missing/non-response rate
  • Estimation techniques
  • Incorrect data is adjusted or corrected
  • Adjustment due to different units/concepts…
 Data is estimated where there is no response either using previous submissions or other data publicly available. Incorrect data are corrected.
Wood Fuel Suppliers
  • Estimation techniques
  • Cross-checking techniques
  • Incorrect data is adjusted or corrected
 Not available.
Wood Waste
  • Estimation techniques
  • Cross-checking techniques 
 All boardmills are surveyed and this data can be cross checked with ETS data.
A sample of sawmills are surveyed. Estimation is used for the remaining sawmills / joiners that we don’t survey for. Industry experts estimated our survey covered approximately 80% of the smaller sites using wood for energy purposes.
Municipal and Other Waste Not available. The Environmental Protection Agency provide data on municipal waste under the Emissions Trading Scheme. The Department of Agriculture, Food and the Marine provide data on tallow
Solar Thermal Upgrade
  • Estimation techniques
 Solar energy is estimated from data on aperture area sourced from energy upgrades grant schemes and methodology recommended under CA- RES WG2 solar heat
Solar New Builds
  • Estimation techniques
  • Grossing up the sample
 Solar energy is estimated from data on aperture area sourced from data on building energy ratings and using methodology recommended under CA- RES WG2 solar heat
Wind Autoproducers
  • Confidentiality techniques
  • Imputing missing/non-response rate
  • Estimation techniques 
  • Confidentiality techniques used when necessary
  • Data estimate where there is no response
Biofuels Not available. Administrative data provided by the Department of the Environment, Climate and Communications on biofuels.
Landfill Gas
  • Estimation techniques
 This data collection is a survey of all the landfill gas generating plants in Ireland. In some cases the plants are surveyed directly, in other admin data is provided.
Electricity generated is provided through the survey and energy input is estimated based on plant efficiency.
Other Biogas
  • Imputing missing/non-response rate
  • Estimation techniques
  • Adjustment due to different units/concepts…
 Where there is no response data is either estimated from previous responses or calculated based on data publicly available.
Heat Pumps
  • Estimation techniques
 Data sourced from Ireland's Building Energy Rating database where heat pumps are installed. Capacity and SPF estimated based on default values for each type and used to estimate heat drawn from the earth.
Non Energy Fuels Not available. Trade statistics provided by the National Statistical Institute
Solar PV
  • Estimation techniques

Data is collected from grant information and news reports on PV installations. Solar energy is estimated based on the capacity of these installations and a calculation provided by an industry expert.

Residential installations are estimated based on data from Ireland's Building Energy Rating database where solar electricity technology is installed.
Electricity in Transport Not available. This survey covers electricity used in rail and in private cars. Private car consumption is estimated from average annual mileage and efficiency.
Crude Oil Imports Not available.  Not available.
Biofuel feedstocks Not available.  Administrative data provided under the Biofuels Obligation Scheme and used to populate SHARES
Residential End Use This is a model rather than a data collection.

The model is based on a modified version of the Irish Dwelling Energy Assessment Procedure (DEAP) . DEAP was developed by SEAI to produce Energy Performance Certificates (EPC) for residential buildings, as required by the Energy performance in buildings Directive (EPBD). In Ireland EPCs are known as Building Energy Ratings (BER). To calculate a BER using DEAP, a detailed survey of the physical characteristics of each dwelling is required, for example, surface area and U-value of building elements, heat system characteristics, etc. The detailed data collected during these surveys for every BER carried out are stored centrally by SEAI in the BER database.  

During an annual IREEUM update project, the Central Statistics Office used the BER database to produce a sub sample  weighted to be representative of the entire housing stock of permanently occupied dwellings. IREEUM runs a modified DEAP calculation for each NSI selected dwelling to generate the residential energy demand split by fuel and end use for each.  NSI weightings are then applied to scale the sample up to the entire stock. The results are summed to give an estimate of total fuel use for each end use. The relative shares of the different end uses for each fuel type is the key result from the model, rather than the absolute values.

SEAI produces the annual Energy Balance for Ireland  providing the overall energy consumption in the residential sector by fuel type. This data is based on top-down analysis of actual fuel consumption in Ireland. The shares of each fuel type split by end use as calculated by IREEUM are applied to these overall figures for residential fuel use to give the final estimate of residential energy split by end-use and fuel type. 
Business Energy End Use  Not available. Administrative data provided by the National Statistical Institute
18.6. Adjustment

not applicable
18.6.1. Seasonal adjustment

not applicable


19. Comment Top


Related metadata Top


Annexes Top