As I said before, I’m sticking with gas for my heating for now. One of the reasons is that we already consume substantial amounts of electricity in winter (typically 20kWh - 30kWh per day) partly depending on the amount we need to top up the EV. The EV charging is currently mainly on the Octopus Go tariff between 0030 and 0430 at 12p/kWh which is critical to keeping costs down. We also top up our storage cooker and run the dish washer and washing machine during off peak. To help we have a Tesla Powerwall that tops up off peak and from solar and that runs the house during the day. At the moment the system is nicely balanced and we very rarely use peak rate electricity.
The downside of Octopus Go is the peak rate charge of approx 42p/kWh and this is the rate an ASHP drawing possibly another 10-15kWh per day would often run at.
So it seems to me that the best tariffs for EVs are not necessarily compatible with the demand cycle for ASHPs and maybe the electric universe isn’t quite here yet?
