Thanks RichyB. I didn’t realise there was a “dual tariff” option. Pulling users away from the peak time through pricing incentives would clearly help spread the load … at least in theory. In practice, however, I’m not sure it would make a lot of difference.
For one thing, 5pm is traditionally the time when people ramp up their heating (even though they’re probably not coming home from work to a cold house during these times of pandemic), and most heating nowadays still uses gas boilers which contribute to global warming whatever time they’re used. On the electrical side, what are we talking about? Fewer boiled kettles or oven-cooked meals would make a difference to the instantaneous load - but are we really suggesting that people should being willing to move their mealtimes outside the peak?
I have a 4kW solar panel system with an instantaneous power monitor (home built ), and try to do tumble drying on days when the sun’s shining to take advantage of the “free” energy. Even at this time of year, a sunny day can deliver 2500 to 3000 watts for some hours which will easily power the dryer. So apart from my gas boiler, I’d like to think I’m fairly green-conscious. I have my eye on an air-to-air heat pump for the future, but I’m waiting until the price comes down to something affordable!
But it was the expression “reduce waste” which I was most curious about in the above email. I can’t imagine what this might be referring to. Perhaps seeing the pennies tick over minute by minute might coax a few people to turn down their heating … but is this “waste”?