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| solar_power [2008-02-20 07:07] – nik | solar_power [2008-05-26 17:00] (current) – nik | ||
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| light-> electricity | light-> electricity | ||
| - | notes/links | + | ====notes/links==== |
| * http:// | * http:// | ||
| * http:// | * http:// | ||
| * http:// | * http:// | ||
| - | increasing efficiency | + | ====increasing efficiency==== |
| * http:// | * http:// | ||
| - | parts / suppliers | + | ====parts / suppliers==== |
| * http:// | * http:// | ||
| * http:// | * http:// | ||
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| * flexible thinfilm -> http:// | * flexible thinfilm -> http:// | ||
| - | + | ==== guestimates ==== | |
| - | + | ||
| - | + | ||
| - | === notes === | + | |
| < | < | ||
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| * US power grid capacity: 776 gigawatts | * US power grid capacity: 776 gigawatts | ||
| - | IE, you'd need less than 1% of Texas using off-the-shelf solar cells to equal the power generating capacity of the entire US grid. | + | ie., you'd need less than 1% of Texas using off-the-shelf solar cells to equal the power generating capacity of the entire US grid. |
| + | </ | ||
| + | or... | ||
| + | < | ||
| + | Humanity uses around 1.5e13 W, and the Earth receives around 1.366e3 W per m² from the Sun (varies with year and month). Earth has a land area of around 1.5e8 km². Assuming 10% efficiency for photovoltaics, | ||
| </ | </ | ||
| - | === various === | + | ==== various |
| * http:// | * http:// | ||
| * vertical multijunction (VMJ) cell http:// | * vertical multijunction (VMJ) cell http:// | ||
| * http:// | * http:// | ||
| * "Solar cell directly splits water for hydrogen" | * "Solar cell directly splits water for hydrogen" | ||
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| ---- | ---- | ||
| - | related: [[Renewable Energy]] / / [[Category Energy]] | + | |
| + | related: [[Renewable Energy]] / / [[Category Energy]] / / [[luminous: | ||