Offer for photovoltaic system including storage - Storage yes/no?

Variant 1. Fill the roof and utilize all surfaces

Variant 1. Fill the roof completely and make use of all surfaces

Hello nordanney, thank you for your feedback. Does "fill completely" then mean to use the suitable roof surface to the maximum? And can you tell me approximately how many KWP would be roughly needed for our house? Are we talking about 9, 12, or 15 KWP here?

And can you tell me approximately how many kWp would be needed for our house, roughly speaking?

As much as the roof area allows and money is available.

we have 13 kwp photovoltaic with 9.6 kWh storage for 22T€, your contractor has exorbitant prices. So now build without photovoltaic and award the photovoltaic separately, the prices for photovoltaic are falling

Are we talking about 9, 12, or 15 KWP here?

our 13 kwp cover about 2500 kWh household electricity and 2500 kWh heat pump, the calculation model predicts a monthly residual electricity bill of 6€

I still have an "old" 10kWp system on the roof. Therefore, no storage (the benefit of which I am not convinced of in most cases). I use just under 30% of it for myself, feed in just under 7,000kWh. Grid consumption is another 7,000kWh.

I wanted to install another 3kWp myself this year. But other construction sites got in the way.