ASHRAE

American National Standards Institute

US Green Building Council

Portland Energy Conservation Inc.

Building Commissioning Association

National Environmental Balancing Bureau

Air Infiltration and Ventilation Centre

The Alternative Energy Store

American Wind Energy Association

Building Green

Daylighting Collaborative

Energy Information Administration

International Energy Agency

MeteoNorm – Global Meteorological Database

OceanArks International

World Solar Energy Companies

Natural Resources Canada – Buildings Group

Whole Building Design Guide

Southwall Technologies – HEAT MIRROR

Windows and Daylighting – Lawrence Berkeley Lab

Xantrex Power Inverters

SMA America – Solar and Wind Power Inverters