[quote=Hamwich]
There's no reason why a well-managed house should get anywhere near breaching 80A/19KW at peak loading. Spread all your needs out over 24 hours and you have a total available energy budget of over 450 KWh/day, which should be enough for anyone unless they want an aluminium smelter in their back yard too.
Sadly the JEC Energy specialist disagrees with this "The other option was an Air Source heat pump, again not sure what size would fit until a full survey / design is done probably with a Vaillant Arotherm plus so rads would not change, only issue with this is the max running current cannot be more than 28.1Amps for your single phase supply, which includes Heat pump and bore hole pump." This is with a 100 amp, single phase supply. Maybe second opinion required.
