Electricity usage busiest time 2AM?!?!

Dannii75

I have economy 7 but all my night storage heaters are now off. Any ideas why my busiest time of usage is 2AM? Could it be the immersion heater? It's very very old & I can't see a timer on it. 
This is usage from yesterday as an insight....
01:00 = 0.01kWh
01:30 = 1.52kWh
02:00 = 1.557kWh
Rest of the day 0.05-0.1kWh

Thank you
D

MWT

That looks right for an immersion heater.

Gerry1

Switch it off tonight and all will be revealed tomorrow !

Dannii75

Gerry1 said:

Switch it off tonight and all will be revealed tomorrow !

I don't know why I didn't think of that! haha
I'll give it a go! 

[Deleted User]

Do you use all the hot water during the day? Ive turned my immersion off over night and I put it on for 1 hour when I get up in the mornings and theres enough hot water for the day. 

Dannii75

Deleted_User said:

Do you use all the hot water during the day? Ive turned my immersion off over night and I put it on for 1 hour when I get up in the mornings and theres enough hot water for the day. 

Hi,
well, I can shower & do my washing-up before the 08:30 economy 7 finishing time! 
Q: Will it make a lot of difference to do that?  does the immersion constantly heat up throughout the day? 

Thanks! 

Gerry1

Dannii75 said:

Deleted_User said:

Do you use all the hot water during the day? Ive turned my immersion off over night and I put it on for 1 hour when I get up in the mornings and theres enough hot water for the day. 

Q: Will it make a lot of difference to do that?  does the immersion constantly heat up throughout the day?

Your immersion heater should ideally be on an Economy 7 circuit that's switched by the meter so that it can never use the expensive daytime rate.  Sometimes there's a cheapskate solution whereby a local timer shadows the E7 times.  That can be problematic if the meter times are not what you think they are, or the timer drifts, e.g. because of power cuts.  However, this does give you the option of a daytime boost if you run out of hot water, although at daytime rate.

There may also be a second immersion heater halfway up the tank on a 24h supply, again intended for a daytime boost to get half a tankful  of hot water in emergency.  Make sure this is not left on accidentally.

macman

Is it a clockwork timer om the meter, or tele-switched? If the former, has the time drifted out by some hours, which it commonly does?

Dannii75

macman said:

Is it a clockwork timer om the meter, or tele-switched? If the former, has the time drifted out by some hours, which it commonly does?

I honestly don't know. My Economy 7 is 01:30 - 08:30 so I think that means it's out by 30mins but at least it's still in E7?!?

Carrot007

Dannii75 said:

macman said:

Is it a clockwork timer om the meter, or tele-switched? If the former, has the time drifted out by some hours, which it commonly does?

I honestly don't know. My Economy 7 is 01:30 - 08:30 so I think that means it's out by 30mins but at least it's still in E7?!?

That is a perfectly valid E7 time, usually older teleswitched meters though.

[Deleted User]

Dannii75 said:

Deleted_User said:

Do you use all the hot water during the day? Ive turned my immersion off over night and I put it on for 1 hour when I get up in the mornings and theres enough hot water for the day. 

Hi,
well, I can shower & do my washing-up before the 08:30 economy 7 finishing time! 
Q: Will it make a lot of difference to do that?  does the immersion constantly heat up throughout the day? 

Thanks! 

By having the immersion heater on just for an hour econ7 will reduce your electric bill a fair bit. If your econ7 it wont heat during the day. I switch mine off in the morning after the hour in case I forget later in the day.