ᐅ Photovoltaic System – Is It Worth It?

hampshire schrieb:

If the investment doesn’t cost you essential liquidity, just go for it.

If your calculations for subsidies and feed-in tariffs are correct, then solar photovoltaics definitely pay off, as long as you don’t buy the equipment at a pharmacy. And liquidity can be arranged with the bank. Even then, photovoltaics are better than none.

At €1000/kWp (approximately $1100/kWp) after subsidies, the levelized cost of electricity is about 5 cents per kWh. This would even be covered by the feed-in tariff. Of course, additional costs like insurance apply, but these should not exceed 2 cents.

If the feed-in tariff is really that high, then installing a battery storage system currently does not make financial sense. I would wait until prices drop and upgrade later.

Best regards, Nika

The public power grid is the best battery.

guckuck2 schrieb:
The public power grid is the best battery.

With accordingly high storage costs = grid supply costs minus feed-in tariff

Since companies are currently fully booked, photovoltaic systems are quite expensive in our area at the moment.

gnika77 schrieb:
With correspondingly high storage costs = grid purchase costs - feed-in tariff

The costs are significantly lower than with a private storage system. Electricity from a private storage system costs more than 30 cents. In addition, the public grid is never empty, especially not during the season with low sunlight. In that case, the private storage just sits empty and incurs electricity costs for its own operation and maintenance charging.

guckuck2 schrieb:
The costs are significantly lower than with a personal storage system. Electricity from your own storage costs more than 30 cents.

I agree with the first sentence in the case of Germany.
The storage costs of more than 30 cents per kWh were accurate about two years ago. That was when I bought my storage system, and it cost about 31 cents per kWh.
Nowadays, you can implement a storage system for under 25 cents per kWh. With appropriate demand and design, I have already seen offers below 20 cents per kWh. In 5 to 7 years, if there is no renewable energy support law, a storage system will very likely be cheaper than feeding energy into the grid and buying it back.

Regards, Nika