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Firedog
Super User
Super User
December 15, 2023
Solved

Price cap increases- To fix or not to fix?

  • December 15, 2023
  • 217 replies
  • 5947 views

Customers on variable tariffs (SVT) are being notified these days of tariff increases from 1 January. At the same time, many are being given the opportunity to switch to a fixed-rate tariff. I am trying to decide whether it would be a good idea to fix, but I’m not sure I have all the information I need. Gas hasn’t been invented yet in my corner of the world, so I’m only interested in electricity tariffs.

Cornwall Insight are a well respected crystal-ball gazer where energy prices are concerned. Their predictions for 2024 show small ups and downs in unit prices, but one startling forecast is for a hike in the standing charge of the order of 15% on 1 April. For a light user like me, this is hugely significant. On SVT, the standing charge would amount to 37% of my bill in January, but by October this would have risen to more than 41%. The fixed rates I’m being offered would keep the standing charge at more or less the current level, so that makes fixing look like a good idea. 

But … we know that Ofgem are considering changes to the way standing charges are calculated and applied. If by some miracle any change were to be implemented before 1 October next, would I miss out on any benefit this might bring? I guess the answer to that is Yes, but that it’s not very likely any change will happen by then. Agree?

And does anyone know the reason for the increase in standing charges predicted for 1 April next? Are we going to be paying for the cost of bailing out Bulb customers?

 

Best answer by BPLightlog

Updated on 29/08/25 by Ben_OVO

The Energy Price Cap, set by Ofgem, is normally changed on 01/01, 01/04, 01/07 and 01/10 each year. The price cap can go up or down and, if you’re on the standard variable tariff (Simpler Energy) then your rates will go up or down to match the price cap change. We offer fixed tariffs for one or two years. If you opt in for a fixed tariff then your rates will be fixed, and protected from price cap changes. If you’re up for renewal, or are currently on the Simpler Energy plan, you can switch to a fixed tariff via your online account or app (see below).

 

 

I’ve been asked about the question ‘to fix or not to fix’ often in the last few months and I always offer the same answer .. how comfortable are you with the possibility that prices might increase over the next year?

There are no two ways about it .. it is a gamble. I liken it to taking out insurance (the optional sort) where it’s a calculation as to the possibility of an expense for a loss/damage compared to - for the most part - having financial cover for those things.

Back in 2021 we fixed our energy rate for 2 years and almost everybody told me that it was at too high a level. Little did I (or anybody else) know about the pending war in Ukraine and the problems with supply from the Russian pipeline.

This time, despite the outlook, we have not fixed .. although, in effect, our tariff is a constant variable if that makes any sense. All of that is why I’ve invested in solar PV, battery storage, a Ripple community solar park and a small wind generator, so that we have a degree of self/low generation support whatever happens

217 replies

Blastoise186
Super User
Super User
September 3, 2024

You probably should, just to be safe.

That said, the FIX deals OVO has on offer are pretty sweet right now - I’d strongly recommend you consider them.

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Rank 5
September 3, 2024

@Blastoise186 thank you for your reply also do you now if standing charges are also going up?

Blastoise186
Super User
Super User
September 4, 2024

They will do, yes.

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Firedog
Super User
FiredogSuper UserAuthor
Super User
September 4, 2024

I ... am trying to work out what my new prices will be if a stay on the variable. 

 

You can see how prices across the country will change on 1 October in these tables: Get energy price cap standing charges and unit rates by region | Ofgem

The ones shown for your region, meter type and payment method may not match the ones OVO eventually charges exactly, but they won’t be far off. The figures in the tables include VAT.

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
Firedog
Super User
FiredogSuper UserAuthor
Super User
February 11, 2025

Speculation time again


While Cornwall haven’t updated their price-cap forecast for some weeks, both BG and EDF have. BG expects a 5% rise on 1 April, while EDF think it will be nearer 6%. 

I just checked what OVO have on offer, and I was surprised to see that some of their fixed-price offerings include standing charges (SC) significantly lower than current ones. Today’s 1-year fixed plan, for example, shows for me 45.95p as opposed to 54.18p for Simpler energy. That is a 15% reduction, of real value to a low (~3 kWh/day) user like me.

Looking at the Extended Fixed plan (17-month, i.e. including all of next winter), it would cost me about 4% more annually (i.e. about £1.50 a month) than my current fixed plan, which expires in May. This beats the forecast cap increase from 1 April, and no-one is predicting that prices will fall significantly after that, or indeed at all in the foreseeable future. I’m sorely tempted to strike while the iron’s a lot hotter than my toes are at present, at the risk of having a red face if Ofgem make any real change to their SC calculation before June 2026.

Have a look at the latest offerings: Our prices | OVO Energy 

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
Peter E
Super User
Super User
February 11, 2025

Looking at future predictions for gas and electric I would say that prices are going to remain stubbornly high and I've not seen anything from commentators that suggests that prices are suddenly going to drop. I would say that FP is going to be better but not by a lot which bugs me. 1. There is no real difference. 2. There is no real competition.

 

BTW: I did really well with Agile last year but day-ahead price all day average is at about the SVR so no domestic saving for me atm and car charging in the early hours is at about 77% SVR compared with about 48% SVR for last year so I'm not saving as much this year but sticking with it and hoping for a warm and windy March.

Reducing my yearly fossil fuel usage with an EV (-900 litres petrol), A2AHP (-8,700 kWh gas) and Timed Immersion heater (-1,500 kWh gas)
Peter E
Super User
Super User
February 13, 2025

Haha. When asking ChatGPT about if there was a website that gave information on wholesale prices for the next 48 hours (but not very successfully as it turns out) it gave me a link to how the CAP could change over the next year from an EDF web page that has been around since May last year. I could do a whoop whoop and say I was substantially correct but I actually wish that wasn't the case.

 

https://www.edfenergy.com/gas-and-electricity/price-cap-predictions

 

Obviously the predictions come with a health warning regarding reliability but I would say that fixing looks likely to be the best option. And the longer the better. I'm not sure I've seen a year when the CAP wasn't expected to go down in the summer.

Reducing my yearly fossil fuel usage with an EV (-900 litres petrol), A2AHP (-8,700 kWh gas) and Timed Immersion heater (-1,500 kWh gas)
Firedog
Super User
FiredogSuper UserAuthor
Super User
February 13, 2025

… it gave me a link to how the CAP could change over the next year from an EDF web page …
  

That was the page I was referring to when I wrote “While Cornwall haven’t updated their price-cap forecast for some weeks, both BG and EDF have.“  Perhaps it’s time I reposted the links:

Predictions & Insights into the Price Cap - Cornwall
Price Cap Predictions and Changes - British Gas
Price cap predictions and insights | EDF
 

I think the data window for Ofgem’s calculations will be closing soon, so I expect that Cornwall are waiting for that so as not to be waylaid by recent weeks’ volatility.

 

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
Firedog
Super User
FiredogSuper UserAuthor
Super User
March 4, 2025

While Cornwall haven’t updated their price-cap forecast for some weeks, both BG and EDF have. BG expects a 5% rise on 1 April, while EDF think it will be nearer 6%. 

 

Ofgem settled on a wider regional spread than usual for 2025Q2. The increase for the typical household will be 6.4% (so EDF won that race), but varying around the country from 2% to 9%. 

 

I’m sorely tempted to strike while the iron’s a lot hotter than my toes are at present,
  

So, I took the plunge and plumped for a unit rate higher than my current fix (23.73 > 21.40) but with a significantly lower SC (45.92 < 49.56), at an annual cost to me of  £13 - but fixed until July 2026. This Extended Fixed price is ~1.5% lower than the Q2 price cap.

The saga doesn’t end there. A week later, that quoted unit rate had dropped to 22.42 … Was this a trend, or should I grasp this bull by the horns while I’m in the 14-day cooling-off period? Well, chicken trumped bull and I didn’t. The following week, that rate had changed again and was now 22.27, with equally confusing changes to the SC. So this time I grabbed it  - yesterday, on day 13 of the no-exit-fee holiday. 

I felt really smug when I saw that today’s price is 22.92, with an SC of 46.92. I’m now stuck with it until August 2026, so I’ll be silently urging Ofgem to boost standing charges even more than the +£15 the new Warm Home Discount scheme will probably cost.

 

Moral: Keep a close eye on the Plans page: the fixed rates are changing once or twice each week: blink, and you could miss a cracker.

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |
Firedog
Super User
FiredogSuper UserAuthor
Super User
March 16, 2025

Moral: Keep a close eye on the Plans page: the fixed rates are changing once or twice each week: blink, and you could miss a cracker.
 

Just for fun, I tracked the Extended Fixed rates as they changed this year. I’m not sure, but I think the commercial people who dream this stuff up decide how many customers will be able to opt for a particular plan. That way, if their crystal ball failed them and they bought in advance at a higher price than they would have paid later, the potential loss is minimized. With any luck, and if they did their sums properly, the losses will be outweighed by the gains. Anyway, here are the various Extended Fixed rates since the start of the year:
  

These are the rates for the East Midlands region, for payment by Direct Debit.
There are significant variations across the country

  
I’m still hoping to avoid the 4-5p/day increase in the standing charge that the proposed expansion of the Warm Home Discount scheme could cost from 2025Q3. And, of course, any other increases Ofgem may dream up.
 

Noel | I have no official status; I'm just a volunteer who comes here to help other customers. My gear: Aclara SGM 1416-B Electricity-only E7 meter; Chameleon IHD3-PPMID-AAA | It may look as if I know what I’m talking about, but don’t let that fool you. |