Photovoltaics at any cost - current situation and offers

Do you have more info here regarding legality or practical issues?

There are hundreds of websites about DIY battery building. It is completely legal - but the forklift cells or 32700s or whatever usually used have also become really expensive by now. You just need an approved inverter for the battery.

I don't need a profitability calculation, photovoltaics were a given and with an energy-efficient house the battery was practically free ;)

I don't need a profitability calculation, photovoltaics were a given and with an energy-efficient house the battery was practically free ;)

That's nice for you, but it's not up for debate here. The question here is whether a storage system costing 7,000 EUR pays off, especially if it's also financed at 4%+.

Seriously: if we only thought economically, no one here would own a house and everyone would rent until the end of their lives...

Here is the question whether a storage system costing 7,000 EUR is worthwhile, especially if it is financed at over 4%.

Probably not. On the other hand, future conditions are hard to predict. Calculations were made here two years ago, stating "the kilowatt-hour from the storage costs 40c, that is never worth it." Today, people are happy if they find offers under 50c...

Probably not. On the other hand, future conditions are hard to predict. Two years ago, calculations were made and it was said "the kilowatt-hour from the storage costs 40c, that's never worth it." Today, people are happy if they find offers under 50c...

From January 1st, 40 cents applies initially for 80% of the annual consumption. And how it will look in two years, no one can predict reliably. It is also not the case that the prices for photovoltaic systems and storage have not increased significantly. This system, he could have gotten two years ago for two-thirds of the price, if not half... and at 1.5% interest, not 4...