Thanks to new California’s CSI solar thermal rebate combined with Federal solar hot water tax incentives, the ROI for commercial solar water heating systems is extremely fast today. Using Free Hot Water’s new solar thermal cost calculator, we plugged “100” … Continue reading
Despite solar water heating being a 100 year, plus, solar technology, it still plays second fiddle to PV, which is more expensive and less efficient on a per watt basis. Better, more aggressive marketing, of course, is the solution to … Continue reading
Free Hot Water often receives questions from people just starting to enter the solar business. One question that comes up is the correct way to measure insolation. What’s insolation? It’s basically a measurement of the amount of sun that’s expected … Continue reading
Free Hot Water just discovered a new way for commercial buildings to save on their electric utility bills—and it’s not just for solar water heating systems. The solution works for any building. The situation: Most commercial building owners pay a … Continue reading
