I’ve started thinking on this.
I’m along the lines of solar, with a battery, and moving to electric radiators, and electric immersion heater for the water.
The pay back period then is against my current electric and gas costs.
The pay back calculations are very individual to any given household - and obviously I don’t know how long I’ve got left (to live!) …
But the idea of breaking dependence on both gas and electric - and having that in pace for when I retire is very attractive.
Even if they resolve this energy thing in the short term - it is a finite resource, and we are already seeing them move on to harder to get sources - and that will continue - more cost and energy to bring this stuff up from the ground and that will passed on to the end user.