Water heater use stored energy?

[Deanelectrichelp]

Can anybody advise? I have a 3 rate old style electricy meter with 3 rates (day, night, and stored energy) Storage heaters are completely off at the mains (red fuse) , yet the bill is showing a ton of stored-energy usage 2849. kWh over 3 months. What else would use stored energy? Does the water heater? or would that just use Day rate and Night rate just like an appliance would? Any help would be appreciated

A single person living on their own and yet my electric bill is £1050 something has to be faulty somewhere

 

[Deanelectrichelp]

Can anybody advise? I have a 3 rate old style electricy meter with 3 rates (day, night, and stored energy) Storage heaters are completely off at the mains (red fuse) , yet the bill is showing a ton of stored-energy usage 2849. kWh over 3 months. What else would use stored energy? Does the water heater? or would that just use Day rate and Night rate just like an appliance would? Any help would be appreciated

A single person living on their own and yet my electric bill is £1050 something has to be faulty somewhere

For the time being can I switch the water heater off? Mine looks like this Understanding Your Hot Water: Part 1 Stored Hot Water - https://www.parkstone-yorkshire.co.uk/stored-hot-water/