'Energy storage' is too often understood to comprise only electricity storage.

The heating sector needs to be electrified anyway, so why not use #HeatPumps to convert wind&solar power to heat (or resistors for 'excess' power), and store it in thermal #SeasonalHeatStorage like boreholes, caverns, pits or aquifiers?

That's cheaper in regions, where space heating represents a significant share of energy consumption and #districtHeating is used.

#SectorCoupling

https://www.utilitydive.com/news/NREL-closed-loop-pumped-storage-hydro-study/691532/

'Energy storage' is too often understood to comprise only electricity storage.

The heating sector needs to be electrified anyway, so why not use #HeatPumps to convert 'excess' wind&solar power to heat, and store it in thermal #SeasonalHeatStorage like boreholes, caverns, pits or aquifiers?

That's more cost efficient in regions, where space heating represents a significant share of energy consumption and #districtHeating is used.

#SectorCoupling

https://www.utilitydive.com/news/NREL-closed-loop-pumped-storage-hydro-study/691532/