No building plot can be found in the southern part of Schleswig-Holstein

Photovoltaics are not worthwhile. That's how it is. Anyone who doesn't sugarcoat it has to admit it. It's better to take the money and invest in a wind farm or a solar energy field of several hectares.

Can you explain to me how you come to this assumption? Most system owners come out ahead, and even if not, it's still a gain for the environment and promotes the decentralization of energy supply. Also, with regard to the increasing energy consumption of single-family homes (heat pumps and BEVs), there is nothing more reasonable than producing the generated electricity directly on-site yourself, right? To avoid going off-topic, feel free to continue via PM... ;)

The system costs around 14. Yield around 65% of our electricity demand. Electricity costs currently around 800 p.a. Then it would only be about 300. Profit 500 p.a. 28 years until it pays off. That’s how I calculate.

The system costs around 14. Yield around 65% of our electricity needs. Electricity costs currently around 800 p.a. Then it would only be about 300. Profit 500 p.a. 28 years until it pays off. That's how I calculate.

You should really calculate properly. Do without self-consumption and feed in.
With a system for €14,000 you definitely get about €1,200 annual revenue only with feed-in!!! Self-consumption is not taken into account here. Therefore, your statement as well as calculation is nonsense ;).

The system costs around 14. Yield about 65% of our electricity consumption. Electricity costs currently around 800 p.a. Then it would only be around 300. Profit 500 p.a. 28 years until it pays off. That's how I calculate.

It's best to read carefully here in the forum. As nordanney wrote, the calculation is done exactly the other way around. Namely only based on the feed-in. Self-consumption is just the icing on the cake. But the fixation on self-consumption is also what solar installers use to sell the uneconomical electricity storage systems.

I have nothing against solar. But if photovoltaics really are as attractive as you write, then, in my understanding, there shouldn’t be any compulsion to get them onto roofs. And I furthermore wonder why many owners of existing properties haven’t retrofitted yet, if photovoltaics really are such a cash cow. Strange, isn’t it?

You can make the numbers look good however you like. Idealists should put such a thing on their roof.

You should calculate properly. Forego self-consumption and feed in. With a system costing €14,000 you’ll get surely around €1,200 annual yield from feed-in alone!!! Self-consumption is not considered here. Therefore your statement and calculation are nonsense ;).

Yes, and now? Then I need 12 years to get my money back — I’d rather invest the €14,000 in more sensible (meaning more profitable) investments. I understand the arguments about decentralization, ecology, climate change, emergency power supply, self-sufficiency, etc. But calling that economical — you must have failed math. It’s already enough that some call their home an “investment.”

In many places, this is the new prestige project and everyone wants to be a pioneer.

Hobby politicians who have understood NOTHING except that it will become "in" and that they can thereby appear modern.

My big son also knows that a cow is not purple...

Thanks to genetic engineering, the little one will already see purple cows outside of chocolate advertisements ;-)

Personally, I see no point in pampering families on the one hand with child building grants and on the other hand constantly creating new building regulations and raising standards, which then immediately consume the small bonus again.

The relief measures are only there so that the cost-increasing standard “improvements” do not trigger mutinies at the ballot boxes. This must be considered a "marketing tactical maneuver" of politics, planning both measures from the outset, leaking at least the relief measure first (or even better: introducing it first at all).