I know we've drifted of topic about EV's, but I don't think that's a bad thing, as its highlighted a bit about renewable and usage. But a lot of this has been about personal consumption of energy, which although is important, its not the whole picture.
How many times have you walked through town of an evening, to be greeted with shops, closed for the day, but with fully lit window displays, or wandered into a 24 hour supermarket, with half a dozen customers in, along with 24 hour service stations and late night businesses, even off licenses, newsagents etc that's not accounting for glaring shop signage.
If we stepped back from this pervasive 24/7 culture, even if only to 18 hour culture, we forced businesses extinguish lighting and signage within 30 minutes of closing, that in itself is going to reduce load massively.
We bang on about personal usage, but given the growing levels of fuel poverty, do you really believe masses of the public really waste so much energy, when with prices rising continually rising most people are trying to save energy, not out of wishfulness for the environment, but purely out of necessity.
You can only use what you can afford,
I think there is more businesses and industry can do, but they must be forced into it, as consumers are priced into energy poverty, but businesses just up their prices to cover energy rises, but the consumer can only cut usage.
There is a diminishing return on consumer led efficiency, as we are already fast approaching the point that we just can't do more or we've done what we can within budget.
I don't think you'll find too many commercial shops turning off all of their lighting, because with that goes video surveillance.