During the revision of the Energy Star specifications, solar water heaters were in danger of losing the label because of their long financial payback times (see http://www.solarthermalworld.org/node/3217). The third draft of Read More
Just two years after the first solar water heaters received the Energy Star Label, they may loose it again. Right now, the Environmental Protection Agency (EPA) is revising the label's Water Heater Specification. It has Read More