Evaluation of Photovoltaic System Offer with Storage

I still feed 2500 kWh into the grid with my system of 7.2 kWP and 10 kW storage. Brings me 200 euros a year.
Can be forgotten.

Plus according to the current status 3200

Does not add up.

4500 x €0.08 per kWh are 360 euros feed-in tariff per year for me. 7200 euros feed-in tariff in 20 years. Nothing pays off comfortably there.

Why not? You can’t just assume the 10,000€ you paid with storage. How much would it have been without? And how much feed-in tariff would you have if you had spent the 10,000€ only on photovoltaics?
And how much (more) direct consumption, which you completely omitted in the calculation?

At first glance, it looks like your photovoltaics with storage fully pay off. But it is hard to understand as long as you calculate like a milkmaid.

And another mistake in reasoning:
Just because your photovoltaics with storage pay off doesn’t mean that photovoltaics without storage do not pay off. They can even be more profitable, to put it mildly.
But then you would have to “give away” your hard-earned electricity to the evil DSO :rolleyes: *

I have 10,000 euros in my account. Until last year, I had a 1800 euro electricity bill. My system cost 10,000 euros. Now I pay only 60 euros for electricity. That is 1200 euros saved per year.
Makes a saving of 24,000 euros in 20 years.

Think about it again. My year has 12 months.

*PS: By the way, you don’t have to claim the legally guaranteed feed-in tariff for 20 years. You may sell your electricity anytime to the highest bidder.

Thank you for your suggestions.

The problem that I and probably most people here have is the available space. Shadow-free in the corresponding direction.

Of course, I could have put twice the number of modules on the roof instead of storage. But where? In that respect, these pieces of advice may be right for some, but not for me.

And surely you will soon tell me to whom I can sell my small amount of electricity to the highest bidder? Completely impractical. I would be very grateful for a concrete tip.

Such free contracts only exist beyond the 30 kWp limit. And then you lay an underground cable yourself to the next grid feed-in point.

And surely you will tell me right away to whom I can sell my tiny amount of electricity to the highest bidder? Completely impractical. I would be very grateful for a concrete tip.

Such free contracts only exist beyond the 30 kWp limit. And then you lay your own underground cable to the next grid feed-in point.

That's exactly what I want to get at. You produce a good that no one wants to buy in those quantities. But it doesn't matter, you receive a guaranteed purchase for 20 years at a specific price, backed by the state, on which you can plan. You can do it or not. I just don't understand the complaining.

Why didn't you get any EPs? The offer is hardly comparable.

I paid 15k without storage for 11.34 kWp. The 19.5k from in post #13 seems more realistic to me.

Why didn't you get EPs? The offer is hardly comparable. I paid 15k without storage for 11.34 kWp. The 19.5k from in post #13 seems more realistic to me.

Hello Hanghaus, they only offer flat rates. However, something has come up now that allows us to assemble it ourselves and buy it as a kit. Then I will take even more modules and still stay under 15k€ without storage. Best regards

Something has come up now that we can install ourselves and buy as a kit. Then I will take even more modules and still stay under 15k€ without storage

Best regards

But you should look for an electrician beforehand who has approval from the grid operator. You absolutely need them for the completion notification to the utility provider. Whether someone who did not install the system will do that, I seriously doubt.

If you can install the hooks for fastening during the roof construction, it saves a lot of work.

The advantage is you can use the scaffolding right away.