ᐅ Costs of Photovoltaic Systems with Energy Storage

The commissioning (on paper) is often scheduled for the new year because the compensation is guaranteed for 20 years plus the current year.

Tarnari schrieb:

The plan should be to generate as much self-consumption as possible due to the now comparatively low feed-in tariff. The tariff is now just a bonus.

The feed-in revenue completely covers the system cost (if the manufacturing expenses are reasonable), and the self-consumption is considered the cherry on top.

Delivery and installation usually take place at the same time. I would be cautious about prepayment in this case.

Before the pandemic, we received the invoice about 3 or 4 months later.

The previously mentioned €5,000 for installation is quite high, especially since the scaffolding is already in place. In our case, the system was fully installed, connected, and commissioned by an electrician with an apprentice in 1.5 days (28 modules, pitched roof). Documentation, applications, and completed registration forms were handled by the office. A senior electrician was onsite. We also receive a free monthly report listing all systems handled by the electrician.

RotorMotor schrieb:

The photovoltaic forum has it exactly the other way around. The feed-in tariff fully finances the system (assuming the manufacturing costs are not exorbitant), and the self-consumption is considered just a bonus.

Well, I suspect the calculation is borderline. That’s still the situation for now. We are still getting 9 point something cents. Next year, 2022, it will be correspondingly less, electricity prices will rise, and system costs may also increase if demand grows due to a possible requirement for new buildings.

RotorMotor schrieb:

The photovoltaic forum takes the opposite view. The feed-in tariffs fully finance the system (assuming the production costs aren’t excessive), and self-consumption is considered just the cherry on top.

No, actually, everyone pretty much agrees. With the feed-in tariff, the system finances itself (although this is now becoming tight). Every kilowatt-hour consumed directly on-site makes it even more economical, which is exactly what @Tarnari explained.

Tolentino schrieb:

Payment for materials upon delivery to the building site. Payment of the remaining balance after commissioning.

I had also considered suggesting that, but I don't expect him to agree. And even if he does, delivering to an unoccupied construction site is rather suboptimal...

nordanney schrieb:

This is actually uncommon with photovoltaic systems. First invoice after material delivery. Second invoice after installation. Third invoice after final commissioning.

I spoke with my banker, and they said it does happen... Difficult.
I would prefer not to unfairly mistrust the solar installer 🙁

Thanks for your opinions!