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Marginal pricing and UK electricity costs

 
Electricity, Tariffs, Monitoring & Providers
Last Post by Lucia 3 weeks ago
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 Lucia
(@lucia)
Prominent Member Member
Joined: 2 years ago
Posts: 354
Topic starter 01/12/2025 9:17 pm  

This is an oldie from my copious files I've been meaning to share for yonks: 

IMG 6406


   
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 Judith
(@judith)
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01/12/2025 10:27 pm  

In many of the other countries coal sets the marginal price.We had the dash for gas to remove the industrial power of uk miners (together with imports from China). Whatever your views on the political aims it had the effect of keeping electricity prices reasonable until the gas market price went silly, and allowed us to drop gas for carbon emissions reduction.


2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with it) open system operating on WC


   
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 Judith
(@judith)
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01/12/2025 10:38 pm  

This is a useful web site, which allows some personal predictions for 2030

https://www.electricitybills.uk/2030


2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with it) open system operating on WC


   
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 Lucia
(@lucia)
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Posts: 354
Topic starter 01/12/2025 10:43 pm  

Yeah sure, but those in the chart are all set by gas. I don’t know if there’s a coal countries version but will have a dig. 

Do you ever have a look at China? Their decarbonisation is interesting. They’re using coal as a baseline (a lot of it) but the rate of build out of the grid & renewables is extraordinary. Huge!
Now the figures for the last 2 years have been published and coal is flattening. It will be interesting to see if this trajectory continues. 

Re the chart, I find it interesting because journalists (sometimes) write about marginal pricing but then don’t explain that the percentage doesn’t have to be fixed at the level we do here.



   
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 Lucia
(@lucia)
Prominent Member Member
Joined: 2 years ago
Posts: 354
Topic starter 01/12/2025 10:54 pm  

Posted by: @judith
↑

This is a useful web site, which allows some personal predictions for 2030

https://www.electricitybills.uk/2030

Ooh great stuff (I think our posts crossed) .
I first began investigating energy trading in an attempt to figure out where prices were going and down the rabbit hole I went. I ended up tracking tankers (which change direction if they get a better price mid ocean). Be warned. 😂 

 

 



   
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 Lucia
(@lucia)
Prominent Member Member
Joined: 2 years ago
Posts: 354
Topic starter 01/12/2025 11:00 pm  

@judith I just realised he’s the guy with the ‘minimum viable data centres’ - he’s extraordinary in the things he codes. I love people like that. 

 



   
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