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The growth numbers currently show that for every extra watt of renewable energy consumed globally, 10 more watts of fossil fuels get consumed. (https://ourworldindata.org/energy#energy-consumption-by-sour...)

Looking at the multiple data sources at https://en.wikipedia.org/wiki/Cost_of_electricity_by_source, there is several patterns that should be fairly clear. Gas and oil is very cheap to build, and the market price they can get out per generated MWh is higher.

> Look, I think nuclear is fine. But as a numerate and earnest environmentalist, I don't see where the case for it lies

Lets put this is in numerical estimated numbers.

An investor builds a wind farm. On average they produce a MWh that costed $35. For the period which the energy was produced they managed to sell it for $85 netting them a profit of $50.

An other investor builds a natural gas power plant. On average they produce a MWh that costed $45. Since they can choose when to produce it they managed to get an average price of $150, netting them a profit of $105.

As a balance sheet, $35 is a cheaper price than $45 when producing 1 MWh. $50 is however much less than $105, making the more expensive energy source the more profitable choice of investment.

Cost is just half the picture in any commercial venture. The daily energy price for 1 MWh varies heavily based on demand and supply. $50 per MWh one day could be $500 a few days later when supply is low and demands is high.

I would also describe myself as numerate and earnest environmentalist, and my view is similar to your but with a clear distinction. Right now we must stop burning fossil fuels. If it cost $45 to produce and they can earn $150, investors who only care about money will continue to invest in fossil fuels. That must stop. The climate will have won a partial victory when the investment into fossil fueled power plants are a proven poor investment, and then we can move on to the transport sector.



The downvotes demonstrate quite clearly what earnest environmentalist think about continuing the existing trend of fossil fueled energy.




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