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> Gas will be part of the solution for many years to come.

True. But if we’re talking about rare - maybe once a year or two - dunkelflaute, then the gas power plants aren’t actually going to consume much gas at all. And thus the CO2 emissions will become negligible.

Those gas power plants already exist in most industrial countries. They’ll have made their return on investment so using them for backup will be fairly cheap. Especially in the coming age of robots/ drones for inspection work.

To get to zero emission we can just use biogas or hydrogen. If the consumption is low this will be sustainable and financially viable since the fuel cost will be a very small part of the total operating costs, and making the hydrogen will be very cheap since there will be an abundance of days with excess electricity.

So I don’t see that we will actually have a problem w.r.t. energy storage. Battery storage for short term has already outpaced pumped hydro. The transition to EVs already imply battery production capacity on a scale to handle energy balancing for hours or even days.

Trash burning power plants is a good solution for seasonal demand. Yeah, reuse and recycle first. But eventually when materials degrade we should burn it to avoid landfills.



The industry is starting to say that hydrogen is not going to happen. It's expensive to make even with hydrolysis, explosive, and extremely leaky. That makes transportation and storage really difficult. Also, I think it contributes to warming when enough leaks.


Hydrogen as fuel won't work, yes; but generating it and immediately making hydrocarbons or ammonia or other chemical feedstocks with it is perfectly feasible. It's already being done. Just not with electrolysis.




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