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The falling price of solar

An informative video that asks, “When will solar energy get cheap?” and does a great job explaining how solar photovoltaics (PV) work.

chat Posted Sep 27, 2014 by Rezwan | Category : Solar
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The Video



Thanks to Michael Graham Richard for pointing out this video from The Atlantic.  Animated by Lindsey Testolin, this clip is part of a six-part video series in The User’s Guide to Energy special report. 

Solar PV vs. Heliosats

As the video says, solar photovoltaic cells convert energy directly from sunlight to electricity, unlike wind, gas and nuclear power.  Note that not all solar energy is PV. Heliosats, for example, work like the other energy sources in that they concentrate heat, boil water, produce steam and turn a turbine.  More on heliosats at:


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