Anyone look into the Brusol offer for solar panels at no cost to the homeowner? What’s a normal price for buying PVs in Brussels?

Brusol’s deal seems almost too good to be true. They provide solar panels, insure them, install them on your roof, and maintain them for 30 years, all at no cost. The panels remain the property of Brusol for 30 years.

Any energy you use is free to you to the extent of the input energy. Essentially you give up roof space in exchange for some free energy. Seems like a good deal.

But of course I’m looking for how this can go bad. If you want to bring in batteries and take all the energy for yourself (e.g. to go off-grid), they charge €850 per panel. I heard that’s ten times the cost of a panel. Apparently they factor all their labor and overhead materials into that price.