- 29 Jan 2012
- Reaction score
- Shaft City, Mid Cornish Desert
I have economy 7. The biggest power consumption by a mile is the immersion heater (we have no mains gas). This is set to come on at night (the reason for e7) on an electronic timer. This has a warning light as does the isolating switch nearer the tank, and both come on at night when the tank is heated. There is no question that it is not heated by day. Probably 70% of the use of the washing machine and dishwasher is at night. The main daytime use is the cooker (not everyday and for an hour max), a microwave, a kettle, an aquarium, a couple of computers (all day), a TV in the evenings and any lighting which is all led. Fridges and freezers run all the time. I checked my bill carefully for the first time and I'm using two and a half times the electricity in the daytime as the night. The number one reading is definitely the night reading, and this is the smaller usage.