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Who's your electricity provider and what's your tariff?

 
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Electricity, Tariffs, Monitoring & Providers
Last Post by JamesPa 1 day ago
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Matthew_W
 Matthew_W
(@matthew_w)
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85 kWhs
Joined: 1 month ago
Posts: 5
31/03/2025 9:56 pm  

Posted by: @editor
↑

I’d be interested to hear the feedback and consensus on the tariffs we discussed recently and if you agree:

I watched a couple of days ago and have to agree with @jamespa that it didn't necessarily bring any clear answers.  In particular there seemed to be a head on disagreement between one person who said it was madness to run a heat pump without batteries and someone else who doubted if buying a battery to grid charge made sense, pointing out the 7p overnight tariffs are loss leaders and can't last forever.

I am still pre-heatpump and i must say the tariffs question is daunting.  Some calculation needed to work out the costs.  I want to do the right thing in terms of CO2 emissions but not at any cost...

I have an EV and am on Octopus Intelligent Go at the moment.  Where would I go if I got a heatpump?  Last years consumption, about 15500 kWh of gas, about 5250 kWh of electricity, of which about 2700 kWh went to charge the car.  No solar or house battery at present.

Staying with Octopus, they don't recommend Cosy for EV owners.  I think it is more complicated that.  Cosy would definitely almost double the cost of charging the car.  On the other hand, in the winter it might well be cheaper to be on Cosy than to stay on Intelligent Go.  Battery storage might help with load shifting but large capital cost.  If buying a battery, maybe best option would be Cosy in the winter, Intelligent Go in the summer, storing grid electricity and charging the car in the cheap rate periods.

Ovo looks interesting because it seems it would be possible to have Charge Anytime for the car and Heat Pump Plus for a heat pump (as long as it was the right brand).  I'd expect to be safely cheaper than gas for heating as long as I had a decent heat pump installation.  On the other hand, I would lose the ability to save money by running the washing machine and dishwasher on the cheap rate.  An extra complication is that if I wanted to install solar and have Charge Anytime, I would need a different car charger.  That's a pity because I've got a pretty new Ohme epod that I had installed especially because it worked with both Intelligent Go and Charge Anytime.  Apart from the cost, it just feels like an awful waste to replace it so soon

So that's all pretty complicated and I've only looked at 2 energy suppliers so far!

Matthew


   
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 JamesPa
(@jamespa)
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11816 kWhs
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31/03/2025 10:05 pm  

@matthew_w

It's a complex area and every case is different so in fairness to the podcast difficult to summarise.  It also changed frequently.

I have a heat pump, EV and solar panels but no battery.  I did some modelling and eon next drive turned out best.  In fairness there wasn't much between a couple of leading options.  I'm locked in for 12 months because of the export tarrif (and my import tarrif is guaranteed for 12months.  I see it as an annual job.

4kW peak of solar PV since 2011; EV and a 1930s house which has been partially renovated to improve its efficiency. 7kW Vaillant heat pump.


   
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