this post was submitted on 18 Nov 2023
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"with wind the single-biggest contributor.... Power production costs have declined “by almost half” .... And the clean energy sector has created 50,000 new jobs.... Ask me what was the impact on the electricity sector in Uruguay after this tragic war in Europe — zero."

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[–] [email protected] 12 points 1 year ago (11 children)

electricity is't the majority of the energy consumed in nearly any country.

it's a easy way to keep confusing less vigilant people by calling electricity as energy.

Just call things the way they are.

[–] [email protected] 30 points 1 year ago* (last edited 1 year ago) (8 children)

You're right; 2/3 of worldwide energy is actually waste heat.

image

https://www.businessinsider.com/most-energy-still-comes-from-oil-2015-10

Here's the chart from 2007: Waste heat / losses are in the top right, although it doesn't show the transport sector losses which are higher than for coal generation.

image

What this means is that when we fully electrify all sectors, by using renewable energy such as wind and solar, our total energy generation capacity will only need to be about 1/3 to 1/4 of what we currently produce today to fulfill our current energy needs. That's huge.

[–] [email protected] 5 points 1 year ago (6 children)

Correct me if I'm wrong, but electrifying a process doesn't automatically make it not produce waste heat, right?

[–] [email protected] 1 points 1 year ago

No but electric motors and heat pumps are much more efficient so electfication helps reduce waste heat

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