this post was submitted on 17 Nov 2023
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Solar now being the cheapest energy source made its rounds on Lemmy some weeks ago, if I remember correctly. I just found this graphic and felt it was worth sharing independently.

Source: https://ourworldindata.org/cheap-renewables-growth

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[–] [email protected] 7 points 1 year ago (11 children)

I'm not quite sure, why it was left out of that graph, maybe they didn't have matching data, but it is shown here (from the same source article):

[–] [email protected] 9 points 1 year ago (10 children)

Clearly nuclear is the future!

[–] [email protected] -4 points 1 year ago* (last edited 1 year ago) (9 children)

You do realise solar and wind gets pricier and pricier to integrate as the level of steerable capacity decreases?

What you are looking at here is “cost to install ‘rated capacity * load factor’”. A big part of the reason renewables are still cheaper is that we have a lot of backup steerable capacity, mainly in the form of gas plants in the west and coal plants everywhere else.

Renewables dump electricity onto the grid and then say “here, buy this!”. And the only reason the grid can respond and say “sure” is that it can tell the steerable gas and coal plants “turn off for a bit, these other plants are dumping a crap tonne of capacity onto the grid”.

Given the insane challenge in building enough storage and/or enough transmission capacity, you are going to need some steerable capacity beyond 70-80% renewable to continue to have cheap integration of intermittent renewables. Do you want that to be based on fossil fuel?

If we wanted to treat renewable capacity in the same way as we have treated other generators, we should say “I want steerable capacity between 0-1200 MW” from this field of wind turbines!”. That would force the currently externalised cost of guaranteeing generation onto the builders of renewables.

Right now, a lot of the real cost is hidden elsewhere in the grid - so it’s no wonder it looks so cheap.

Please don’t misread my comment as being against renewables, which we need a lot more of. I’m against crappy accounting.

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

We just have to build a transatlantic power line - It's always sunny somewhere in the world /s

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