This JRC site in Petten hosts the biggest part of the Institute for Energy and Transport (JRC-IET) .
Address in Petten:
Westerduinweg 3, NL-1755 LE Petten, The Netherlands
How to get there 
Postal address:P.O. Box 2, NL-1755 ZG Petten, The Netherlands
Tel.: +31 (0)224 565656 (switchboard)
As the science and knowledge service of the European Commission, the Joint Research Centre's mission is to support EU policies with independent evidence throughout the whole policy cycle.