Is it possible to apply for funding or discounts?

The train has left the station. Turnkey, even all the trains I can think of.

The only funding I can think of now would be for subsequent additional orders, e.g. if you want to add a photovoltaic system. However, the applications must always be submitted before the order is placed (read the exact conditions!).

For reassurance: Only very rarely is it worth meeting the funding requirements because of the funding. It is usually more advantageous to forego the funding.

After all, why should something be funded that pays off on its own?