The future of residential building electrical installations

Are you serious about only 6 to 7A per house? My 60A guaranteed maximum was a very generous figure and based on an assumption that if a house is sucking 70A then chances are that the house next door is sucking significantly less than 60A, so across a town it somewhat balances out.

Very serious, not as a peak load for one house, that will be higher of course, but as the peak load of any large no of houses, divided by the number of houses involved, oh yes.

This is the After Diversity Max Demand  (ADMD). Take a walk round and look at your nearest substation, or pole pig transformer if you are rural, note the rating (binoculars may help), then see how many sites it supplies.  Or do the other sum, and add up our generating capacity, and divide by no of households. Then take a bit off the households for industry. Either way the ADMD figures are not unreasonable

The ADMD assumptions for network sizing,  for various types of load are also published by many DNOs, and are based on many years of building a network that works very well, and is not over designed.para 7.1 of this UKPN doc is typical other DNOs, especially those in areas with a  more rural population and a larger number of smaller substations each serving fewer properties may use slightly different assumptions when sizing transformers and the network to supply them, but not wildly so.

I repeat, there really is not a lot of slack in the curent set-up.

Are you serious about only 6 to 7A per house? My 60A guaranteed maximum was a very generous figure and based on an assumption that if a house is sucking 70A then chances are that the house next door is sucking significantly less than 60A, so across a town it somewhat balances out.

Very serious, not as a peak load for one house, that will be higher of course, but as the peak load of any large no of houses, divided by the number of houses involved, oh yes.

This is the After Diversity Max Demand  (ADMD). Take a walk round and look at your nearest substation, or pole pig transformer if you are rural, note the rating (binoculars may help), then see how many sites it supplies.  Or do the other sum, and add up our generating capacity, and divide by no of households. Then take a bit off the households for industry. Either way the ADMD figures are not unreasonable

The ADMD assumptions for network sizing,  for various types of load are also published by many DNOs, and are based on many years of building a network that works very well, and is not over designed.para 7.1 of this UKPN doc is typical other DNOs, especially those in areas with a  more rural population and a larger number of smaller substations each serving fewer properties may use slightly different assumptions when sizing transformers and the network to supply them, but not wildly so.

I repeat, there really is not a lot of slack in the curent set-up.