Germany’s new Economy Minister Katherina Reiche on Friday called for the rapid construction of new gas-fired power plants in the country to support the country’s energy supply when renewable sources are unavailable
She said it was important to “quickly move to tender at least 20 gigawatts of gas-fired power plants to maintain energy security.”
Reiche ruled out a return to nuclear energy
"This means we need to conclude the relevant free trade agreements with Chile, Mercosur, India, Australia and Mexico. And I explicitly say, we also need the United States of America," Reiche said.
That’s the point. The backup needs to produce (close to) 100% of the demand 2% of the time.
And coal plants are incredibly bad at quickly reacting. It takes a day just from ignition to working temperature, several days to establish the transport chain constantly providing the huge amounts of fuel needed (bonus points for a lot of them being ship-based and possibly suffering from low water levels).
Also there is a lot of industry that will already need climate-neutral gas produced by green energy as their only valid way for electrification. And in the end it’s also a cost issue. If the industry already needs huge amounts of gas and the transport network anyway (of which a lot already exists - refitting natural gas networks for hydrogen has already started) the state doesn’t need to pay much than just the power plants. And they are comparably cheap (the exact opposite of nuclear where constrution is expensive but fuel and operation are cheap).
There are currently plans for over 226GW of grid sized battery storage in Germany, so a bit of lead time is possible. Weather forecasts are a thing as well, so the grid operators will have a good idea, about how much power is available at any given time.