Your infrastructure doesn’t have to be so beefy when you produce and cache it locally. In my climate, 500W vs 15kW wood be enough boost for winters. That’s 30x reduction in pricy infrastructure.
Solar panels and wind turbines produce electricity, the highest form of energy, directly. Instead of converting that to thermal or chemical energy for storage and then back to electricity for distribution, you're better off just storing it at as thermal energy at the destination. I think we often forget that thermal energy means everything from ~0 Kelvin. A heat exchanger can be very efficient.
I think there's going to be a lot of interesting stuff happening with dual-use PV panels and thermal heat exchangers. In some cold climates you generally want as much thermal energy as you can get your hands on.