ec.europa.eu/energy/intelligent/ - Intelligent Energy Europe Programme, from the European Union.
ec.europa.eu/... Smart Grids information portal, from the European commission.
hec.europa.eu/energy.. - Energy efficiency portal, from the European Commission.
Rmi.org - Rocky Mountain Institute: website specialized in energy efficiency.
Ase.org - Alliance to Save Energy: advice and info for energy saving
worldofcogeneration.com - World of cogeneration: cogeneration news
GreentechMedia.com - GreenTech blog
cogeneurope.eu - Cogen Europe, European association for the promotion of cogeneration.
eeb.org - European Environment Bureau
Market, research & tools
homerenergy.com - Energy Modeling Software for Hybrid Renewable Energy Systems
ge-ip.com - GE Intelligent Platforms: energy management software
cogeneurope.eu/category/publications/ - Publications about cogeneration, from Cogen Europe
ipcc.ch/publications_and_data... - Publications about climate change, by IPCC.