How does it work when you have a 100% renewables tariff?
I'm not saying you're wrong, just curious.
They have to buy generation from the owners of the wind farms/solar generators or do it in terms of certificates or credits, so the generators of the actual energy have the credits to sell as well as the energy. Not sure if it has changed recently though, but it was relating to onward investment so more money went to the renewables, so they could build more etc.