Economy 7 electricity consumption

tomstickland

In the summer I was using 3 day and 3 night units. In the winter with my heating on 2/10 I use an additional 10 units per night. With it on 4/10 I was using an additional 20 units per day.

So, for a 1 bed flat with 3 heaters I'm looking at:
1100 daytime units per year
2900 night time units per year (365/2*10 + 365*3)

Around 4K units per year.
Night time is 2.5p per unit, daytime around 15 ish,
so around £250 for a year.

Gives you some idea.