solarpunk memes

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submitted 6 days ago* (last edited 6 days ago) by [email protected] to c/[email protected]

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Key context: thermodynamics dictates that heat engines waste a lot of energy.

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[–] [email protected] 18 points 6 days ago (2 children)

Well-To-Wheel energy efficiency:

Gasoline: ~20%
Diesel: ~30%
H Fuel Cell: ~25%
BEV (fossil power): ~20%*
BEV (renewable): ~55%*

*BEV is highly dependent on energy source. Anwhere from ~20% WTW from natural gas power generation to 75% from roof-mounted solar.

Keep in mind this is a summary of a summary of a summary.

Sources:

[–] [email protected] 23 points 6 days ago (1 children)

Technically solar panels are only ~20% efficient, but there's also virtually unlimited sun so it doesn't really matter.

[–] [email protected] 9 points 6 days ago

Scotland disagrees