I’ve just switched a relative from E.On to Bulb - saving around £17 a month - (3p cheaper standing charge per day, 5p cheaper per day and 2p cheaper at night!) and realised they’ve got quite high usage compared to use (3 bed semi house, 2-3 “heavy duty” computers).
Their situation is:
- 2 bedroom mid-floor flat (so flat on top and below)
- Post-2000 build so should be reasonably insulated
- Single person occupancy - but is occupied 95% of the time
- Has “halogen spotlights” in kitchen and bathrooms, but aren’t used much (as enough light gets into the kitchen most of the time, and the bathroom is used for about 20 minutes a day)
- Has low-energy bulbs in main rooms
- Has dishwasher (used maybe once a day - sometimes just once a week)
- Has washer/dryer (again, used maybe once a week)
- Has electric oven and hobs - but only cooks 3 times a week (also has fridge/freezer)
- Has a TV/Router/Soundbar combo which do get used a bit, but they won’t be massive power drainers. Also has an infrequently used laptop
- Has Storage heaters (on Eco7) but very very rarely used as flat stays warm enough
- Has a 210 litre electrically powered hot water cylinder for just themselves - it does power the used once a day shower, and the dishwasher/washing machine are all cold fed.
They are using around 400 units during the day/300 during the night (when the dishwasher/dryer are put on) - which is more than we use!
I would normally suggest doing the “take meter readings” test to try an isolate what could be consuming the power, but the electrical meters are in an entirely separate building and only the landlord has access to them and provides readings on a monthly basis (so there is a chance the entirely wrong meter is being read!)
My gut thought is the hot water tank is causing the high usage - but I didn’t make a note of it’s wattage, and surely it won’t use that much power would it? Any thoughts/comments on that?
Any other suggestions on what to check/investigate as to why their usage feels silly high (they should not be paying more in utility bills than we do!) given the lack of access to the meter?