alt Hacker News> 50¢/m² is 50¢/kWp in a solar concentrator, or 0.05¢/Wp, which is noticeably cheaper than photovoltaic cells, currently around 18¢/Wp, 360 times more expensive.
A photovoltaic cell is a solar panel, and a piece of aluminium does nothing, am I missing something here?
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cdu1 • today at 3:51 PM
I think the implication is you can use it to reflect additional light onto your photocell, improving the power output for a smaller cost than purchasing an additional cell.
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https://en.wikipedia.org/wiki/Concentrated_solar_power