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Re:Solar Roof by wlesieutre on Wednesday May 10, 2017 @05:58PM (#14312099)
> I've heard the stat thrown about that 50% of energy generated is lost to transmission. If that's true then there's efficiency to generation at home.

It's more like 5%. The larger numbers you're thinking of might be including generation losses. Coal plants are around 33% efficient in terms of converting the fuel's energy into electricity. Natural gas is better, but still under 50%.

https://www.eia.gov/tools/faqs/faq.php?id=105&t=3

https://www.eia.gov/tools/faqs/faq.php?id=107&t=3

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