Gas with solar thermal? Or heat pump with photovoltaics? Consultation

Fascinating how you can philosophize about this topic for 60 posts without mentioning CO2 even once...

*duckandcover*

What do you think?

As much as is being discussed here, it really seems to be a kind of "matter of faith"! If there were not so many uncertain variables regarding electricity/gas prices/CO2 tax, the problem would be solvable much faster. I simply fear a significant increase in the cost of a gas boiler because politics wants it that way, and that should not be underestimated (see the topic of electric cars... definitely not a 100% effective future solution, but the government just wants it that way now).

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CO2 price increased: Forge plans now to avoid additional costs

.... Already in 2021, 100 euros more for 17,000 kWh of gas per year.... OK, hardly any newly built single-family house has that much...

0.6 cents per kWh, that should mostly be 10-15% additional costs. By 2026, it will then be 35% additional costs.

Well, up to 1.6 cents more doesn't make me nervous, that would be 6.5 instead of 5 cents.