ᐅ Experiences with Caterva Solar Battery Storage Systems

Why an interest-free loan? The battery delivers 20 kW with a capacity of 21 kWh (kilowatt-hours) and is manufactured by Siemens. Maintenance for 20 years as well as installation are included. For Caterva, this results in breaking even. The system only becomes cost-effective when it operates outdoors.

There is, of course, a risk of insolvency, but it remains manageable. The battery is owned by the customer and, if Caterva's control system were to fail, it would function as a “dumb” battery.

The yield of the photovoltaic system would be around 80-85%. Only the premium would no longer apply. However, with some consumption, the system would pay off within 20 years, and at 10,000 (kWh), already after 13 years.

Who uses 10 MWh in a private household?

Maybe the Kelly Family. But definitely not the average person with their 1.6 children. Not even if we add a swimming pool for the summer.

Family, 2 children, heat pump, electric vehicle
There is more than enough

That was a good one too. No, it doesn’t exist.

How many families actually fit this combination?

I would argue it’s an extremely small number, unless you prove me otherwise.

The combination of a family with two (or more) children is already quite rare. Adding a newly built house from the last 5 to 10 years makes it even less common. Then consider the registration numbers of electric cars. Your 10 MWh just won’t add up.

Plus, such an electric car would need to be driven 50,000 km (31,000 miles) per year to eventually reach 10 MWh.

If you look back one page, you can already find the first one with Matthias 2912...

By the way, the seemingly impossible happened at the beginning of the year: the company filed for bankruptcy. They claim they are not out of the game yet and want to restructure... we will see.