This TED Talk is not that new, and a bit longer than usual, but the speaker does a pretty good job of summarizing how to set up photovoltaics in your home. The main reason I am posting this is because, much like Lab 3-9 (Photovoltaic Cell Dynamics)  and this corresponding video, the speaker presents a calculation for how many years are needed for the photovoltaic panels to pay for themselves. He bases his calculation on the "cost per watt hour" of photovoltaics. My calculation is based on "co...
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