http://www.ebrd.com/projects/eias/5877.htm

http://www.acquisti.nel.it/acquisti/it/html/index.asp

Associations and Organizations- American Wind Energy Association

American Wind Energy Association

Canadian Wind Energy Association

Electric Power Supply Association

Geothermal Energy Association

Independent Power Producers of New York

Independent Power Producers Society of Alberta

Independent Power Producers Society of Ontario

National Hydropower Association

New England Renewable power Producers

Renewable Energy Information

CEERT

Connecticut Clean Energy Fund

Energy Efficiency and Renewable Energy Network

Hydro Research Foundation

National Renewable Energy Laboratory

Renewable Energy Alliance