ᐅ Photovoltaic System: Costs and Savings Potential – Experiences?

DaGoodness schrieb:

Besides, I still receive compensation from Senec for the feed-in that exceeds the annual free allowance.

Then take a look at where the VAT goes that the grid operator pays to Senec. Because that has to be reported to the tax office anyway, and if you are the system operator—that is, an entrepreneur—then it is your responsibility in case nothing reaches the tax office.

In one of Senec’s videos, it is explained, roughly speaking, that the euro payments received are converted into kWh, so it doesn’t matter whether you receive VAT or not. They even promote that under standard taxation, more kWh are credited than actually delivered, since the transferred tax is counted as part of the payments received. I find that very problematic.

As I said, this isn’t really my area of expertise, so I will definitely consult a tax advisor about it. However, the tax office employee also mentioned something about being able to opt out of the small business regulation after 6 years, which would mean I wouldn’t have to pay taxes on personal use and feed-in anymore.

But I realize we’re drifting a bit off topic... maybe this is more suitable for the tax forum :p

Yes, after a full 5 years (usually therefore 6), it is possible to switch back from standard taxation. Consequence: no more VAT on own-use consumption, but also no VAT deduction on invoices for repairs, maintenance, or replacement parts.

Quick question: Where the red area is, there is now a carport with a shed. On this flat roof, 9.24 kW will be installed. Now the question is about orientation. Should everything face SE or SE/NW?

For those interested: 24 x TSM-385DE09.05 VERTEX S, Kostal PLENTICORE plus 10 hybrid inverter, substructure, electrical installation, assembly, registration, and commissioning for a total price of 10,830 gross.

Thank you all!

Grot85 schrieb:

Quick question: Where the area is marked in red, there is currently a carport with a shed. We plan to install a 9.24 kW system on this flat roof. Now the question is about the orientation. Should it all face SE or SE/NW?

Thank you all!

Why all SE? The house is located to the east and will cast a shadow. So most likely, it should all face SW.

However, on flat roofs, it is common to orient panels E/W because it requires less mounting material and is less vulnerable to wind.

Hello!
I often read here that everything is unprofitable. But what about a new build, where the question arises:
Gas heating+solar = 17,500€ KfW subsidy
or
Air-to-water heat pump+photovoltaics+storage = 37,500€ KfW subsidy (with 27,500€ additional costs in my offer)

So in the end, the total extra cost from KfW55 to KfW40 plus 7,500€ more… is it profitable then, including the storage?