Heat pump tariff vs EV tariff vs fixed rate.

HarryVee

We've just had a heat pump installed and I drive an EV. The, almost mandatory, smart meter is being fitted next week. I have hit a minefield of energy tariffs. My car only needs charging twice a week which I try to do on bright (sunny) days taking advantage of our roof top PV's. 
All tariffs give low price at some time of day or night then hammer you at other times. Would I be better just going for the best fixed rate or jumping in the minefield and changing our lifestyle.
Help please!

MattMattMattUK

HarryVee said:

We've just had a heat pump installed and I drive an EV. The, almost mandatory, smart meter is being fitted next week. I have hit a minefield of energy tariffs. My car only needs charging twice a week which I try to do on bright (sunny) days taking advantage of our roof top PV's. 
All tariffs give low price at some time of day or night then hammer you at other times. Would I be better just going for the best fixed rate or jumping in the minefield and changing our lifestyle.
Help please!

You will need to estimate how much of your usage will be in the various time slots, or how much can be shifted across. If you have a decent amount of battery storage then an EV tariff will almost certainly be cheapest, if you do not then it depends on the mix between heating use, how water use, EV use, background use and use you can time shift.

Keep_pedalling

Charging twice a week does not tell us much, I charge twice a week but it still used 60% of our electricity. We get 15p pkWh export SEG payments so it is actually cheaper to charge overnight at 7p pkWh. It gets a bit more complicated with an EV and a heat pump but a single rate tariff is highly unlikely to to be the cheapest for you.

Exiled_Tyke

Well this is very rough and ready but  I did an online check which concluded sticking with my EV tariff is my best deal.  I heat hot water on the cheap rate overnight and have the heating come on in the morning during the cheap tariff. I also charge a battery for the house.    

Reed_Richards

I do very well on the Eon NextDrive tariff which gives 7 hours of cheap overnight electricity.  But I have a battery that goes with my PV system and that probably makes quite a big difference.  At the cheap rate I charge my battery, charge my EV as necessary, run the heat pump to heat my hot water and bring the house back up to temperature after a temperature set-back earlier in the night.    

HarryVee

Thank you everyone, there are too many swings & roundabouts to play on, aren't there. I should have had a smart meter yesterday but thats being put back till next week. Once thats in I'll hassle Scottish Power for best deal then maybe shop around.
Thanks again

michaels

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