Tariffs news from 2025
35 stories, newest first
- December 2025
Suppliers required to be able to offer Time of Use tariffs by 2025
Ofgem has said it is requiring energy suppliers to be able to offer Time of Use tariffs by 2025, a commitment set out in its September 2021 electric vehicle strategy.
- November 2025
ECIU comments on energy price cap change for January to March 2026
The Energy and Climate Intelligence Unit says the typical dual fuel bill will rise by around 30p under the January to March 2026 price cap, a fall of £37 in real terms.
JRF briefing proposes rising block tariff funded by taxation and network profits levy
The Joseph Rowntree Foundation has published modelling showing a rising block tariff funded by taxation and a levy on network profits would cut the median household energy bill by £150 a year.
Energy Systems Catapult publishes response to Ofgem lower-standing-charge tariff consultation
Energy Systems Catapult has backed Ofgem's plan to require suppliers to offer lower-standing-charge tariffs but says the proposal lacks a clear plan to manage risks of reduced competition and consumer harm.
Consumer Scotland publishes response to Ofgem consultation on lower standing charge tariffs
Consumer Scotland has published its response to Ofgem's consultation on requiring suppliers to offer at least one lower standing charge tariff, backing a temporary approach and warning of cost redistribution.
Demand Flexibility Service became a year-round tool
The Demand Flexibility Service has moved from a winter-only emergency measure to a year-round tool used in the normal operation of the electricity market, according to the government's 2025 security of supply report.
- October 2025
Nesta publishes trial findings supporting automated flexibility in type-of-use heat pump tariffs
Nesta and OVO trial finds automated heat pump flexibility on a type-of-use tariff shifted 30 per cent of peak heating demand and could save owners up to £440 a year.
New Energy Choices Tool helps navigate smart energy options
The Centre for Sustainable Energy has launched a free Energy Choices Tool giving households personalised recommendations on smart energy products, services and tariffs, funded by two electricity distribution networks.
Flexi 2025 variable cost breakdown updated for the quarter from 1 October 2025
ScottishPower has updated the quarterly breakdown of variable costs inside its Flexi 2025 tariff from 1 October 2025, with Balancing Services Use of System rising on the single rate electricity table.
- September 2025
Power NI announces 4% residential tariff increase from 1 October 2025
Power NI will raise its residential unit price by 4% from 1 October 2025, adding about 11p a day for an average household, after the Utility Regulator approved the change.
Green Alliance publishes report making the case for a social tariff to address fuel poverty
Green Alliance has published a report modelling three social tariff designs, arguing percentage discounts on gas and electricity bills would support fuel poor households better than the Warm Home Discount.
Marketwide Half Hourly Settlement rollout due to begin
Marketwide Half Hourly Settlement is due to begin rolling out from September 2025, a change intended to give suppliers a greater incentive to offer tariffs that reflect real-time costs.
Ofgem announced plans to require suppliers to offer at least one lower standing charge tariff
Ofgem has opened a one-month consultation on requiring suppliers to offer at least one lower standing charge tariff to all payment types and meter customers in every region.
- August 2025
October to December 2025 price cap set at £1,755
Ofgem has set the October to December 2025 Default Tariff Cap at £1,755 a year for a typical dual fuel household, a 2% rise from July, with forecasts pointing to a slight fall in January.
- July 2025
Octopus Energy price amendments
Octopus Energy amended prices on its Octopus Key and Card and Flexible Octopus tariffs, in a change recorded by the price comparison service Energylinx.
Flexi 2025 variable cost breakdown updated for the quarter from 1 July 2025
ScottishPower has published the quarterly update to its Flexi 2025 variable cost breakdown, showing which component charges change from 1 July 2025 and which stay the same.
Ofgem published a summary of responses and next steps on zero standing charge tariffs
Ofgem has set out next steps on zero and lower standing charge tariffs, saying it will consider requiring every supplier to offer one such tariff in all regions.
- June 2025
Deadline for Economy 7 smart meter upgrade contact
Energy suppliers were expected to have contacted Economy 7 customers about upgrading to a smart meter before 30 June 2025, under the deadline for moving homes off older metering.
Catapult analysis shows EV herding creates new overnight demand peak
Energy Systems Catapult analysis of 854 Living Lab homes finds that at around 50% EV uptake the overnight charging peak is twice the size of the early evening peak, driven by time of use tariff herding.
Resolution Foundation publishes Flex Appeal research on flexible energy pricing
Resolution Foundation research funded by the European Climate Foundation finds flexible energy pricing could cut household electricity bills by £200 a year by 2040, but warns of risks for lower-income families.
Ofgem consulted on RTS-specific supplier licence conditions with a no worse off tariff provision
Ofgem has consulted on new licence conditions for energy suppliers covering radio teleswitch meter replacements, including a provision that consumers be left no worse off on tariff.
equiwatt launches beta energy tariff integration in its app
equiwatt has added a beta tariff integration to its app, letting users view import rates and contract details, and letting AlphaESS battery owners with an export MPAN earn rewards for exporting.
Planned national RTS switch-off did not happen in June 2025
The Radio Teleswitch Service phase-out began in June 2025 but no national switch-off took place, with the transition now continuing in stages through 2026.
- May 2025
Ofgem publishes updated price cap levels for 1 July to 30 September 2025
Ofgem has set the default tariff price cap for 1 July to 30 September 2025 at £1,720 a year for a typical dual fuel household paying by Direct Debit, down £129 or 7% from the previous level.
Utility Warehouse May fixed launch
Utility Warehouse has replaced its UW Fixed 46 and UW Fixed Saver 46 tariffs with 47-numbered versions, part of a wave of July 2025 fixed-rate launches and removals across UK suppliers.
- April 2025
Which? launches heat pump cost savings calculator
Which? has released an online calculator showing how pairing a heat pump with a specialist electricity tariff can cut annual running costs by hundreds of pounds compared with a gas boiler.
Energy Saving Trust publishes response to future default tariffs consultation
The Energy Saving Trust has told a government call for evidence that suppliers should be obliged to place households on default tariffs that suit their circumstances, and that the default price cap should be reformed.
Smart time of use tariff adoption increased by over 75% in the last year
Ofgem reports that smart time of use tariff adoption rose by more than 75% in the last year, driven by rising electric vehicle ownership and demand for cheaper, more flexible energy options.
- March 2025
Citizens Advice publishes three reports on designing targeted social tariffs with automation in mind
Citizens Advice, IPPR and Policy in Practice have published three reports on how social tariffs for energy, water, broadband and car insurance could be designed and delivered automatically to eligible households.
Octopus pauses new sign-ups to Flux and Intelligent Octopus Flux tariffs
Octopus Energy has temporarily stopped new sign-ups and switches to its Flux and Intelligent Octopus Flux tariffs, citing volatile energy prices, with forum users reporting Snug has also been withdrawn.
Social tariff working group final report shared with UK Government
A Scottish Government working group on a social tariff for energy has sent its final report and recommendations to the UK Government, which holds the powers to implement one.
- February 2025
Ofgem announces energy price cap increase for April to June 2025
Ofgem has raised the energy price cap by 6.4 per cent for April to June 2025, taking a typical household bill to £1,849 a year, and the government is consulting on a wider Warm Home Discount.
Ofgem opens consultation on tariff without standing charge
Ofgem has opened an industry consultation on introducing a tariff without a standing charge, announced alongside a 6% rise in the price cap for April to June 2025.
Ofgem announces third consecutive price cap rise for April to June 2025
Ofgem has set the April to June 2025 Default Tariff Cap at £1,849 a year for a typical dual fuel household, a third consecutive rise and the first April cap above January's since quarterly updates began.
Ofgem launched a consultation on a zero standing charge option within the energy price cap
Ofgem has opened a consultation on a zero standing charge option within the energy price cap, setting out three ways to move fixed daily charges into higher unit prices.