bestouff parent
We're getting there. https://www.euronews.com/green/2025/06/15/sand-batteries-cou...
That's about storing heat, not electricity.
While related insofar some electricity inevitably gets converted back into heating, I don't think its really relevant to this discussion which is explicitly about electricity.
The winter peaks in gas and electricity are driven by heating demand. Electrification of heat combines the two and will make winter electricity peaks even peakier.
So anything that reduces that heat demand at a lower cost is a relevant fix, this includes heat storage, district heating, general efficiency and insulation improvements etc.