I'm sure you already made up your mind about heat pumps and that I can't convince you otherwise. But for other readers, let me add some thoughts to your points.
1) well, there's a grid. So as long as someone somewhere on your continent produces green energy it is viable and green.
2) arguable. Depends on your legislation.
3) Again, there's a grid. And even considering the worst case of no renewable sources at all: A heat pump (which uses 1kWh of electricity to provide 3-6kWh of heat) powered by a diesel generator is still more efficient than burning the diesel directly. Now add efficient combined cycle power plants, wind, biomass, hydro and battery storage systems...
We are 40 years in back when it comes to grid infrastructure investmets. Grid is not some magical thing that has infinite capacity and transfer speed and costs.
The reason why powerplants have to be strategically distributed around the country and have to consist of multiple different power geration sources.
Cyting Germany’s cancelor „Going full green was a strategic mistake”
Ps. Heat pump is as effective as the heat source it can use..
1) well, there's a grid. So as long as someone somewhere on your continent produces green energy it is viable and green.
2) arguable. Depends on your legislation.
3) Again, there's a grid. And even considering the worst case of no renewable sources at all: A heat pump (which uses 1kWh of electricity to provide 3-6kWh of heat) powered by a diesel generator is still more efficient than burning the diesel directly. Now add efficient combined cycle power plants, wind, biomass, hydro and battery storage systems...