As long as it’s actually cheap that’s not an issue. Swapping to a resistance heater when electricity rates cost less than natural gas is a cheap and straightforward way to suck up excess electricity in the winter. Unfortunately, UK fees may prevent ultra low retail rates even if wholesale power is cheap.
A more elaborate system can use predicted rates and thermal mass with heat pumps to dramatically reduce energy costs while also shifting demand to peak production periods.
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The majority of existing homes and hot water supplies use natural gas
As long as it’s actually cheap that’s not an issue. Swapping to a resistance heater when electricity rates cost less than natural gas is a cheap and straightforward way to suck up excess electricity in the winter. Unfortunately, UK fees may prevent ultra low retail rates even if wholesale power is cheap.
A more elaborate system can use predicted rates and thermal mass with heat pumps to dramatically reduce energy costs while also shifting demand to peak production periods.