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That is pretty near what the JEC supply planning engineer told me when we had to get our supply re-laid. Subsequently when I explored going for an ASHP the rep told me that the 100 amp supply would not be sufficient to guarantee a warm house, and the supply could not upgraded. So not too sure what I will do when heating oil is priced out of practical use.
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If there is a concern that 100amp supply isn't enough, I would be getting seriously concerned about the capacity to generate substantial electricity bills. 100Amps = 24KW at £0.229 per KWH thats bumping the bill by £5.49 per hour.
As a totally irrelevent thread drift, when we did some work at the Natwest tower it was calculated that if someone turned on all the lights at same instant, the starters on the fluorescent tubes pulled so much power that it would create a peak demand charge from the electricity supplier of over £35,000.00 (20+ years ago ) hence putting in control systems to stop anyone being able to do that.
