Considering solar powered underfloor heating as a method of keeping your home warm and snug? There are several things to bear in mind before taking the plunge. While both underfloor heating and many ...

Dear Jim: We have a large family and use much hot water. I cannot afford to have a solar water heating system installed, but I would like to make some type of solar water heater myself. What do you ...

This October, renewable energy generation globally surpassed coal for the first time on record. Solar energy has played a major hand here. In the US alone, 84% of all new electricity generation ...

VIPs cut the ribbon at Portal Space Systems’ HQ in Bothell, Wash. From left: U.S. Rep. Suzan DelBene; Portal co-founders Prashaanth Ravindran, Jeff Thornburg and Ian Vorbach; and Bothell Mayor Mason ...