I am wondering if this is a way to offset the intermittence problem... Are you allowed to buy a solar power certificate to offset an energy consumption during t

I am wondering if this is a way to offset the intermittence problem... Are you allowed to buy a solar power certificate to offset an energy consumption during the night? If yes, then it is meaningless indeed. However if this amounts to making sure that some renewable energy is produced every second some energy is consumed on Eon's network, then that's a very good policy.