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> All your points are wrong. No, yours are. > We can store the energy in batteries, pumped hydro, hydrogen/methane, as heat and probably half a dozen other te
by cbmuser 6y ago
> All your points are wrong.
No, yours are.
> We can store the energy in batteries, pumped hydro, hydrogen/methane, as heat and probably half a dozen other technologies.
Germany consumes 1600 GWh of electricity per day. We currently have a pump storage capacity of 40 GWh, so that's about 30~40 minutes of electricity storage.
If you want to go the power2gas route, just have a look at the combustion heat of methane to calculate how much you would roughly have to synthesize to store 1600 GWh worth of energy.
> Renewables are cheaper to build than conventional power.
They are. But they need backup power plants as their energy densities and capacity factors a very low compared to nuclear power plants.
That's why electricity prices in Germany are the highest world-wide:
> https://www.globalpetrolprices.com/electricity_prices/ https://www.globalpetrolprices.com/electricity_prices/
> Power companies hate them because they challenge the profitability of their existing coal plants.
That's simply untrue. Power companies LOVE renewables because they are highly subsidized and the government always guarantees that any kWh renewable electricity produced is also purchased.
- adrianN 6y agoGermany is not at the point where large scale storage is more economical than better demand side integration and very far from the point where it is necessary for grid stability. It's no surprise then that there is not much storage capacity available. For gas though we already have the strategic gas reserve infrastructure that can store nearly 25 billion cubic meters. What's missing is the synthesizing part.