- Affordable Comfort Housing Performance Assoc.
- American Public Power Assoc.
- American Wind Energy Assoc.
- ApplianceHelp.com
- Assoc. of Energy Services Professionals
- Cogeneration and District Heating/Cooling
- Edison Electric Institute
- Electric Power Research Institute
- Energy Federation, Inc.
- Florida Municipal Electric Assoc.
- Gas Technology Institute
- IEEE Home Page
- Iowa Association of Municipal Utilities
- National Rural Electric Cooperative Assoc.
- North American Electric Reliability Council (NERC)
- Northwest Power Planning Council
- PJM Interconnection Association
- Western Turbine Users Group