Ofgem standing charge cap proposal (2026): savings calculator

Work out what a standing charge cap could mean for your home in Great Britain, using simple inputs and transparent assumptions. Compare “today vs a capped standing charge” and see who tends to benefit most.

  • Instant estimate for electricity and/or gas (daily standing charges and usage)
  • See outcomes for low, medium and high usage households
  • Get a quote to check whether switching could cut costs now (cap proposals can change)

Estimates are illustrative and depend on your tariff, region, payment method, meter type and any future Ofgem decision. Not available for business energy or Northern Ireland.

Fast answer: would a standing charge cap likely save you money?

A standing charge cap (if introduced in 2026) would mainly help households that use less energy, because a larger share of their bill is made up of the daily fixed charge. However, any cap could be paired with higher unit rates (p/kWh) to recover costs. Your net result depends on: your region, payment method, meter type (credit vs prepay), and how much gas/electricity you use.

Most likely to benefit

  • Low usage (e.g., small flats, single occupants)
  • Homes with long periods away (second homes, frequent travel)
  • All-electric small properties where standing charge is a bigger share of the bill

Mixed outcomes

  • Typical usage households (cap saves on fixed costs, but unit rate changes matter)
  • Households on prepayment meters (different price caps apply)
  • Homes with multiple fuels (gas + electricity)

May not benefit

  • High usage households (savings from lower standing charge may be outweighed by higher unit rates)
  • Customers already on tariffs with relatively low standing charges
  • People tied into fixed deals with exit fees who can’t move easily

Important: Ofgem’s 2026 standing charge cap is a proposal/consultation topic rather than a confirmed policy at the time of writing. This page helps you model “what if” outcomes and decide what to do now (often: check your current tariff and compare options).

Savings calculator (estimated)

Use the fields below to estimate annual impact if daily standing charges were capped. You can model two common policy shapes:

  • Cap only: standing charge reduces, unit rates stay the same (simplest “upper bound” saving)
  • Cap + rebalancing: standing charge reduces, unit rates increase slightly to recover costs (often discussed in policy debates)

Step 1: Enter your current charges

Find these on your latest bill/app: daily standing charge (p/day) and unit rate (p/kWh). If you don’t know, you can still proceed using rough estimates, but your result will be less accurate.

Electricity

Standing charge
____ p/day
Unit rate
____ p/kWh
Annual usage
____ kWh/year

Gas (if applicable)

Standing charge
____ p/day
Unit rate
____ p/kWh
Annual usage
____ kWh/year

Tip: If you have a prepayment meter (traditional or smart prepay), your standing charges and unit rates can differ from direct debit. Model the payment method you actually use.

Step 2: Choose your “cap” assumptions

Proposed capped standing charge (example values)

  • Electricity cap: 25 p/day (example)
  • Gas cap: 15 p/day (example)

Replace with any cap values you want to test. If Ofgem sets different numbers by region/meter type, results will change.

Unit rate “rebalancing” (if standing charges fall)

  • Electricity +1.5 p/kWh (example)
  • Gas +0.4 p/kWh (example)

This models how suppliers/network costs might be recovered elsewhere. It’s not a forecast—just a scenario you can adjust.

How to calculate it (you can do this on a calculator)

Current annual cost (per fuel)

= (standing charge p/day × 365 ÷ 100) + (unit rate p/kWh × annual kWh ÷ 100)

Capped annual cost (per fuel)

= (capped standing charge p/day × 365 ÷ 100) + ((unit rate + uplift) p/kWh × annual kWh ÷ 100)

Then: Estimated change = capped annual cost - current annual cost (negative means an estimated saving).

Check deals you can switch to now

Policy proposals can move. If you want to reduce your bills sooner, compare whole-of-market options in minutes. We’ll use your details to provide quotes and help you understand next steps.

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Switching note: If you’re on a fixed tariff, check for exit fees before switching. You can often find this on your bill or in your online account.

Two realistic scenarios (with numbers)

These are illustrative examples to show why outcomes vary. Figures exclude any discounts, fees, or special tariffs.

Scenario A: low-use flat (electricity only)

  • Usage: 1,800 kWh/year
  • Current standing charge: 60p/day
  • Current unit rate: 28p/kWh

Modelled cap: 25p/day

Cap only saving ˜ (0.60-0.25)×365 = £127.75/year

Cap + rebalancing (+1.5p/kWh) change ˜ -£127.75 + (0.015×1800) = -£100.75/year (saving)

Scenario B: family home (gas + electricity)

  • Electricity: 4,200 kWh/year
  • Gas: 12,000 kWh/year
  • Current standing charge: elec 60p/day, gas 32p/day

Modelled caps: elec 25p/day, gas 15p/day

Cap only saving ˜ ((0.60-0.25)+(0.32-0.15))×365 = £189.80/year

Cap + rebalancing (+1.5p/kWh elec, +0.4p/kWh gas) change ˜ -£189.80 + (0.015×4200) + (0.004×12000) = -£78.80/year (saving)

If the uplift were larger, a high-use household could see the saving shrink or reverse.

Why scenarios matter: Standing charge changes scale with days (fixed). Unit rate changes scale with kWh (variable). Low usage usually benefits most from a standing charge cut.

Compare outcomes: cap-only vs cap + rebalancing

Use this table to sense-check your own situation. The “break-even” usage is the point where higher unit rates would cancel out standing charge savings.

Fuel Example current standing charge Example capped standing charge Standing charge saving (per year) Example unit rate uplift Break-even usage (kWh/year)
Electricity 60p/day 25p/day (0.60-0.25)×365 ˜ £127.75 +1.5p/kWh £127.75 ÷ £0.015 ˜ 8,517
Gas 32p/day 15p/day (0.32-0.15)×365 ˜ £62.05 +0.4p/kWh £62.05 ÷ £0.004 ˜ 15,512

Interpretation: If your annual usage is well below break-even, you’re more likely to benefit even with some unit-rate rebalancing. If it’s well above, you’ll want to test different uplift assumptions.

Decision checklist: does a cap suit you?

  • You use relatively low kWh (or expect usage to fall)
  • You’re on a tariff with high standing charges (check bill)
  • You value predictable fixed costs over time
  • You’re open to checking alternative tariffs now (standing charge levels vary)

When it may not suit you

  • You have high usage (large household, high heat demand, EV charging at home)
  • Your tariff already has low standing charges vs local alternatives
  • You rely on heat pumps/electric heating with high kWh consumption (unit rate matters most)
  • You’re locked into a fixed deal with exit fees (switching costs could outweigh benefits)

Costs, exclusions and common pitfalls (UK-specific)

Standing charges and any cap (if implemented) sit inside a wider set of rules. These are the most common reasons people’s real-world bills don’t match quick estimates.

1) Region matters

Standing charges vary across Great Britain because network costs differ by area. A single “UK average” can be misleading for your postcode.

2) Payment method & meter type

Ofgem sets different caps for direct debit, standard credit, and prepayment. Smart prepay can also differ from traditional prepay.

3) Fixed tariffs & exit fees

If you switch before your fix ends, you may pay an exit fee. Always check the tariff terms—especially if you’re considering switching purely due to standing charge changes.

4) Standing charges still apply when you use no energy

Even at zero usage (e.g., empty property), the daily charge can add up. A cap would reduce this, but it wouldn’t remove standing charges entirely unless policy changed further.

5) Complex tariffs

Time-of-use (e.g., EV tariffs), tracker tariffs, and bundles can change the maths. Standing charges are only one part of total cost.

6) Northern Ireland rules differ

Ofgem regulates Great Britain (England, Scotland, Wales). Northern Ireland has different arrangements, so figures and policy proposals aren’t directly comparable.

Practical tip: If you want a quick reality check, look at last year’s kWh on your annual statement and compare it to your break-even usage from the table above. Then test a “cap + uplift” scenario, not just “cap only”.

FAQs

What is a standing charge, in plain English?

It’s a fixed daily cost you pay for being connected to the gas/electricity network. You pay it regardless of how much energy you use. It helps cover things like metering, network maintenance and some policy costs.

Is Ofgem definitely introducing a standing charge cap in 2026?

Not necessarily. Ofgem may consult, test options, or decide on alternative reforms. Treat any “2026 cap” figures you see online as provisional unless confirmed by Ofgem publications.

Would everyone get the same standing charge cap?

It could vary. Today’s Ofgem price cap already differs by region and by payment method (direct debit, standard credit, prepayment). Any standing charge cap might follow similar splits.

If standing charges are capped, will unit rates go up?

They might. If total allowed supplier/network revenue stays similar, lowering the fixed charge can mean higher p/kWh rates (sometimes called “rebalancing”). That’s why low-use households usually gain more than high-use households.

Does the Ofgem price cap mean my bill is capped?

No. The price cap limits the unit rates and standing charges suppliers can charge on standard variable/default tariffs. Your total bill still depends on how much energy you use.

What if I’m on a fixed tariff—does a cap apply?

Fixed tariffs set prices in your contract, so changes to the default price cap don’t automatically change your rates. If you want to switch, check for exit fees and the end date of your fix.

How do I find my standing charge and unit rate quickly?

Check your latest bill, your supplier app, or your online account. Look for “standing charge” (p/day) and “unit rate” (p/kWh) for each fuel. If you have Economy 7 or a time-of-use tariff, you may have more than one unit rate.

I’m a tenant—can I switch energy supplier?

Often yes, as long as you pay the energy bills and the contract is in your name. If bills are included in rent or the landlord manages the supply, you may not be able to switch. Citizens Advice has guidance on tenancy and switching.

Will a standing charge cap help if I’m in debt to my supplier?

It might reduce the baseline cost, but debt repayments (including through prepayment meter settings) are separate. If you’re struggling, you can seek free help and check eligibility for support.

If you’re worried about paying: you can get free, independent support from Citizens Advice and check GOV.UK for available help schemes. Don’t wait for potential policy changes if you need help now.

Trust, methodology and sources

Page ownership

Last updated
March 2026

How we assess “savings” here

  • We model annual bill change as standing charge difference × 365 plus any unit rate uplift × annual kWh.
  • We show both cap-only and cap + rebalancing because real policy design may shift costs between fixed and variable elements.
  • We treat all results as estimates, not predictions. Your actual tariff may include features we don’t model (e.g., time-of-use rates).

Assumptions and limitations (read this if the numbers look “off”)

  • Great Britain only (England, Scotland, Wales). Northern Ireland differs.
  • No forecast of Ofgem decisions: cap values and dates are user-chosen scenarios.
  • VAT and discounts: domestic energy includes VAT at the applicable rate, but bills may include additional credits/discounts we don’t apply here.
  • Two-rate tariffs: Economy 7/time-of-use may require separate day/night rates; our simplified uplift assumes a single average uplift.
  • Standing charge components can change over time (network charges, policy costs, bad debt allowances) and can vary by region.
  • Prepayment arrangements can include debt recovery settings that affect what you pay weekly, separate from headline rates.
  • Switching friction: we don’t include exit fees, missed fixed-term discounts, or supplier-specific rewards.
  • Usage accuracy: if your annual kWh estimate is wrong, the unit-rate effect will be wrong too.

Sources (UK)

We also monitor supplier tariff terms and Ofgem consultations/announcements as they are published, and update this guide when confirmed details change.

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Updated on 19 Mar 2026