Energy

National regulatory authorities

Austria https://www.e-control.at/ E-control
Belgium http://www.creg.be Commission de Régulation de l'Electricité et du Gaz (Commission for Electricity and Gas Regulation)
Bulgaria http://www.dker.bg/ Комисия за енергийно и водно регулиране (Energy and Water Regulatory Commission)
Croatia https://www.hera.hr Hrvatska Energetska Regulatorna Agencija (Croatian Energy Regulatory Agency)
Cyprus https://www.cera.org.cy/ Ρυθμιστική Αρχή Ενέργειας Κύπρου (Cyprus Energy Regulatory Authority)
Czechia http://www.eru.cz Energetický regulační úřad (Energy Regulatory Office)
Denmark http://energitilsynet.dk/ Energitilsynet (Energy Regulatory Authority)
Estonia http://www.konkurentsiamet.ee Konkurentsiamet (Estonian Competition Authority)
Finland http://www.energiavirasto.fi/ Energiavirasto (Energy Authority) 
France http://www.cre.fr/ Commission de Régulation de l'Energie (Regulatory Commission of Energy)
Germany https://www.bundesnetzagentur.de Bundesnetzagentur (Federal Network Agency)
Greece http://www.rae.gr Ρυθμιστική Αρχή Ενέργειας (Regulatory Authority for Energy)
Hungary www.mekh.hu Magyar Energetikai és Közmű-szabályozási Hivatal (Hungarian Energy Office)
Ireland https://www.cru.ie/ Commission for Regulation of Utilities
Italy www.arera.it Autorità di Regolazione per Energia Reti e Ambiente (Regulatory Authority for Electricity, Gas and Water)
Latvia https://www.sprk.gov.lv/ Sabiedrisko pakalpojumu regulēšanas komisija (Public Utilities Commission)
Lithuania http://www.regula.lt Valstybinė kainų ir energetikos kontrolės komisija (National Control Commission for Prices and Energy)
Luxembourg http://www.ilr.lu Institut Luxembourgeois de Régulation (Luxemburger Regulatory Institute)
Malta https://www.rews.org.mt Regulator for Energy and Water Services
The Netherlands https://www.acm.nl/nl Autoriteit Consument Markt (Authority for Consumers and Markets)
Poland http://www.ure.gov.pl/ Urząd Regulacji Energetyki (Energy Regulatory Office)
Portugal http://www.erse.pt/ Entidade Reguladora dos Serviços Energéticos
Romania http://www.anre.ro/ Autoritatea Nationala de Reglementari in domeniul Energiei (Energy Regulatory Authority)
Slovakia http://www.urso.gov.sk Úrad pre reguláciu sieťových odvetví (Regulatory Office for Network Industries)
Slovenia https://www.agen-rs.si/ Agencija za energijo (Energy Agency)
Spain https://www.cnmc.es/ Comisión nacional de los mercados y la competencia
Sweden http://www.ei.se Energimarknadsinspektionen (Energy Markets Inspectorate)