NonProfit Programs:
UCS - Clean Energy Union of Concerned Scientists
Green-e - Renewable Energy and Greenhouse Gas Reduction Certifications
RESNET - Residential Energy Services Network
ACEEE - American Council for an Energy Efficient Economy
IPMVP - International Performance Measurement and Verification Protocol
NFRC - National Fenestration Rating Council - energy performance labeling system for windows, doors, skylights, and attachment products
IESNA - Illuminating Engineering Society of North America
Professional Associations:
NABCEP - North American Board of Certified Energy Practioners - Certified Solar
Photovoltaic Installers
ASHRAE -
American Society of Heating, Refrigeration and Air Conditioning
Engineers
AWEA - American Wind Energy Association