Well... 150 euros/sqm can mean anything and everything. In our town, that's the price for the industrial area.
But it has to be worth it for you.
What is important with photovoltaics and what you need to find out beforehand is whether the photovoltaic contract can even be taken over! The previous compensation was 45ct, today only 12ct.
But there are experts in another quite blue forum with photovoltaics in the name.
If you can't take over the contract, 2700 euros quickly turn into 800 euros.