This is why it makes sense to synthesize methane in summer, when electricity is super abundant, to use it in winter when energy is most needed.
What are the options for dwellings of various sizes for the unusual situation at extreme north latitudes ?
As for energy storage, for example: I am personally looking at a ground thermal unit which can store heat in the ground during the summer and cool the home at the same time. This stored heat can then be extracted for an increased COP during the cold months thereby reducing energy usage per degree of heating.
There are add-ons such as https://thermia.com/products/accessories/cooling-module/