Same (but more so) can be applied to PIR versions - can't figure out the exact timescale but it's got to be in 'years'???

Attending to your heat loss is the key, followed by 24/7 items like fridges/freezers (which is where we 'fail') but it's factored into the cost of sales anyway so...meh.
It's going to get worse though. Wait until the Russia thing really kicks off (no gas or oil) and prices shoot up to $200/barrel and more.
Something not realiy discussed is the level of 'borrowing' electricity these days. As bad as the situation might have been I bet there's a whole load more going on since the price rise! Kinda wish I lived in a city......