Conical Solar Panels . Even for photovoltaic (PV) panels, there’s such a thing as too much sun—when cells overheat, they become less efficient. V3Solar solved that problem with Spin Cell, a conical array that floats on magnets. An outer cone made of specialized lenses concentrates bands of sunlight on an inner cone covered with PV cells. The cells capture light energy but spin away before thermal energy can transfer.
Want to build your own portable solar power generator to take with you on camping trips or for use in an emergency? I’ll show you how below, it’s easier than you think. Goal Zero’s version of this cost $400, depending on what you include yours will under cost $150 by buying inexpensive parts from Amazon.com. Look for a parts list below. #environment #technology #diy #green #sustainability