News wrote:

we have used 9128 units over a year.

No electric heating. No tumble dryer. Just the usual washing machine,
dishwasher, two fridges/freezers, two desktops, two laptops, kettle,
lighting etc. An I naive, or is that a lot of units?

Yes.

2100 units in last year here, with a tumble drier.

You've not got a red 1/10's digit on your dial, have you?