My solar installation is limited to 5kW. It can go to 7 for a bit, but I try to avoid it. Trouble is, our kettle uses almost 3kW. So if the water heater is on and the aircon etc. at the same time, we can have problems.
I noticed that our new induction hob has a "boost" facility which makes a pan of water boil very quickly. I'm pretty sure it consumes at a lower rate than the kettle. Is this possible? I would have thought a kettle with submerged element would be nigh on 100% efficient.
Opinions?