I would say most sites charge a fixed amount for electricity, it is just hidden in the site fees (CAMC and CCC). I have been on one site that is metered but where the first 10 units per day are included in the site fees. This seems fair enough, it is plenty for battery charging and background use but not for heating. He could also charge for all units used but he still has to cover the costs of providing the facility so unlikely to lead to a big reduction in site fees.Yes, we’ve stayed on a couple of sites who are charging a set amount for electric, but there’s no question of a rebate if you use a lot less. We think it’s a rip-off.
Electricity is never free and I have never heard of it being refunded. You make your choice when you book the site and if I don’t like the terms I don’t book it. I think site owners may have to change how they structure and charge for their services, particularly those who stay open in the colder months. However those that make their money from summer holiday bookings for 2 weeks could find that holiday makers swallow increases as just another rise in the cost of living.