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I pay 6 cents per kWh here in Portland.
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Imagine if gas stations prices varied similarly. I pay ~10 cents, while across the river it's twice as much.
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Originally Posted by freebeard
Florescent light guides can raise solar cell's efficiency to 1.5 or better.
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As I understand, fluorescent is the most popular way to create white light, but it isn't as efficient as RGB lighting. Perhaps the reason it's more popular is a superior Color Rendering Index (CRI)?
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To be clear: The fluorescent material overlays the solar cells and reradiates UV as visible light to be harvested, expanding the usable spectrum.
Light guides are a flat concentrator.
Covered by Robert Murray-Smith:
https://www.youtube.com/playlist?list=Solar.
His video from earlier today is fun:
1671 Nine Of The Strangest Renewable Energy Sources You Have Probably Never Heard Of
Everything from burning dead people to the Energy Duck.