I've just bought a solar immersion controller that sends unused solar generation to the immersion circuit.
When the immersion thermostat switches off the supply to the tank the controller can then send the spare solar generation to a second circuit on which could be a heater of some kind (i.e. oil filled rad or storage heater).
The CU is in the garage and I'm planning on fitting a new socket in the house (on the other side of the wall to the CU) and connecting this to a separate circuit.
If there's room in the CU for a new circuit I'll do that, but if not,
can I have a new socket connected to a circuit that is currently only used by an electric shower and use this for the second heater (which at some time is going to be decommissioned)?
*I will be using a proper electrician for this job, I just need to know what is and isn't possible.*