What the point from heat pumps in current situation when they are powered by electricity?
If you say "powered by X", how am I supposed to interpret this? I see no other way than: "all of the output power comes from X", or maybe "most of the output power comes from X". If this is what you mean, then sorry, you are completely wrong.
Heatpumps are not "powered by electricity", this is a total misunderstanding of what heatpumps do. They NEED some electricity, but that's a different thing.
Look at the energy flow. Energy output produced by a heatpump is originally solar energy, seasonally stored in the heat capacity of the planet (soil + atmosphere). So heatpump-powered house is heated BY SOLAR. Not "by electricity".
Now sure, PART of that output energy is from electricity, no way around that. But the key is, this part is small, especially in Middle European conditions.
So by installing a heatpump, you
reduce your fossil fuel consumption to maybe one third, because
you add a new renewable energy harvester.
Sure, somewhere you might have electricity crisis but no gas crisis. In such case, heat pump might not instantly work out. It's still the right thing to do.
But now Europe is facing shortage of both electricity and natural gas, so heatpump will be an obvious choice, because it reduces energy consumption so significantly.
It's really fundamentally very close to EV vs. gasoline car. EV will put more burden on the grid, but in the big picture still the right thing to do because
energy consumption is reduced to 1/4th.
The magic of heatpump is in two things:
1) affordable price
2) built-in seasonal storage
Compare to PV. Say you have to pay 5000€ to get a 3000-4000kWh/year PV installation. And it produces very little during the coldest 2-3 months.
A heatpump? You get one (typical air source unit) installed for maybe 1500€. It will extract the same 3000-4000kWh/year of solar energy, and even better, it can still extract it during the coldest, darkest months. Curve of production capability vs. demand is not perfect, but better than PV. Price per harvested energy is a lot better than PV.
So if you have to choose between PV and heatpumps, choose heatpumps first. PV is of course great, too.
Always look at energy first. Everything else is details.