Regional price cap rates by postcode (UK): what changes where you live

See how Ofgem’s price cap unit rates and standing charges can differ by region — and how to estimate what that means for your postcode, meter and payment method.

  • Understand why your postcode can affect standing charges and unit rates
  • Check what region you’re in and what to compare (standard variable vs fixed)
  • Use realistic examples and a simple method to estimate your own costs
Get your energy quote by postcode How regional price cap rates work

Price cap figures are set by Ofgem and vary by region, payment method and meter type. Estimates shown are illustrative and not a personalised quote.

Fast answer: do price cap rates vary by postcode in the UK?

Yes — Ofgem’s price cap is set using different regional rate levels. Your postcode maps to a distribution region, and that can affect:

  • Standing charges (often the biggest regional difference)
  • Unit rates (pence per kWh for electricity and gas)
  • The rates shown for your payment method (Direct Debit, prepayment, etc.) and meter type (single-rate, Economy 7, smart/prepay)

Important: The price cap is not a cap on your total bill. It limits the unit rates and standing charges suppliers can charge on standard variable and default tariffs. Your usage drives your total cost.

Key takeaways (UK)

1) Region impacts the price cap rates you’ll see
Even if two homes use the same energy, different regional standing charges can change the annual cost estimate.
2) Payment method and meter matter as much as postcode
Direct Debit, prepayment, and Economy 7 have different capped rates.
3) Comparing is still worth doing
Price cap rates only apply to standard variable/default tariffs. Fixed deals can be above or below — always check the full tariff details.

Compare local energy rates by postcode (whole of market)

If you want a practical view of what you could pay, use your postcode to see available tariffs for your area. We’ll ask a few basics so results match your meter and payment setup.

What you’ll need

  • Postcode and whether you pay by Direct Debit or prepay
  • Your current supplier and (if you know it) tariff name
  • Estimated usage (or your latest bill) for best accuracy

What you’ll get

  • Tariffs available for your region and meter type
  • Estimated annual cost based on your details
  • Clear flags for key terms like exit fees and fixes

Transparency: We use your postcode to determine the relevant regional charging area and show tariff options accordingly. Availability and rates can change, and eligibility may depend on meter type and credit checks for some payment options.

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Fill in your details and we’ll start your comparison. You can stop at any time.

We use this to match your regional rates and available tariffs.

So we can help if you want support choosing a tariff.

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See what changes by region

By submitting, you’re asking EnergyPlus to help you compare tariffs. Rates are subject to change and availability. If you’re on a fixed tariff, check exit fees before switching.

How to check your “price cap region” from your postcode

The simple explanation

Ofgem publishes capped rates by electricity distribution region (and equivalent gas arrangements). Your postcode maps to that network area. That’s why two households on the same supplier can see different standing charges and unit rates.

The practical way to confirm

  • Check your latest bill for your electricity distribution region (often shown near tariff details).
  • If you have a smart meter in an app, look for tariff information or “regional rates”.
  • Use a trusted comparison journey (like the form above) that asks for postcode and meter type.

What not to do

Avoid using a national “average” unit rate to estimate your bill if you’re checking affordability — standing charges vary and can materially change outcomes, especially for low usage households.

What typically differs by region (and what doesn’t)

When you’re searching “regional price cap rates by postcode”, it helps to separate price cap rules from supplier pricing choices. Here’s what to look for when comparing tariffs in your area.

Item Can vary by postcode/region? Why it matters What to check
Electricity standing charge Usually yes Paid daily regardless of usage; big driver for low users. Your region + payment method + tariff type.
Electricity unit rate (p/kWh) Often yes Your usage determines how much unit rates affect the bill. Single-rate vs Economy 7 (day/night).
Gas standing charge Sometimes Important if you use little gas (e.g. summer months). Your tariff’s standing charge and whether gas is supplied.
Gas unit rate (p/kWh) Sometimes Big impact for homes with gas heating. How you pay (Direct Debit vs prepay).
Price cap eligibility No (rules are national) Applies to standard variable/default tariffs, not fixed deals. Whether you’re on a default tariff or fixed tariff.
Exit fees (fixed tariffs) No (set by tariff) Can make switching uneconomic until the end date. Exit fee amount, end date, and switching rules.

Decision checklist: who this is useful for

  • You’re moving home and want to estimate costs before signing a tenancy or buying.
  • You’re on a standard variable tariff and want to know if your region is high/low on standing charges.
  • You have low usage (e.g. small flat) and want to see if standing charges dominate your bill.
  • You’re on Economy 7 and want rates matched correctly (day/night split).

Who it may not suit (without extra context)

  • If you don’t know your meter type (single-rate vs Economy 7), your estimate may be off.
  • If you have a complex setup (e.g. multiple meters), you may need tailored advice.
  • If you’re on a fixed tariff with high exit fees, the “best” switch might be to wait.

If you’re struggling with bills, you may be eligible for supplier support or grants. See the official guidance in the sources section.

Two realistic scenarios (with numbers) to show how region can change costs

These examples are illustrative to explain the mechanics. They don’t use live regional cap tables (which change each cap period) and they don’t account for every tariff feature. Where shown, VAT is included at 5% (domestic rate).

How to read these: Annual cost estimate ˜ (electricity kWh × electricity unit rate) + (electricity standing charge × 365) + the same for gas (if applicable).

Scenario A: Low-use electricity-only flat

  • Electricity usage: 1,800 kWh/year
  • Gas: none
  • Payment: Direct Debit
  • Meter: single-rate
Assumption Region 1 (lower standing) Region 2 (higher standing)
Elec unit rate 25.0p/kWh 25.0p/kWh
Elec standing charge 45p/day 65p/day
Estimated annual total £616.25
(1,800×£0.25=£450) + (365×£0.45=£164.25)		 £689.25
(1,800×£0.25=£450) + (365×£0.65=£237.25)

For low users, the standing charge difference can be the main reason a postcode area looks more expensive — even with identical unit rates.

Scenario B: Typical dual-fuel household (gas heating)

  • Electricity usage: 2,900 kWh/year
  • Gas usage: 12,000 kWh/year
  • Payment: Direct Debit
  • Meter: single-rate electricity
Assumption Region 1 (lower standing) Region 2 (higher standing)
Elec unit rate / standing 24.5p/kWh & 48p/day 25.5p/kWh & 60p/day
Gas unit rate / standing 6.2p/kWh & 30p/day 6.5p/kWh & 32p/day
Estimated annual total £1,540.30
Elec: (2,900×£0.245=£710.50) + (365×£0.48=£175.20)
Gas: (12,000×£0.062=£744.00) + (365×£0.30=£109.50		 £1,677.70
Elec: (2,900×£0.255=£739.50) + (365×£0.60=£219.00)
Gas: (12,000×£0.065=£780.00) + (365×£0.32=£116.80

For higher-usage homes, unit rate differences add up faster — but standing charges still matter.

A simple way to estimate your own annual cost

  1. Find your annual kWh usage for electricity (and gas if you have it) from your bill or in-home display/app.
  2. Note your tariff’s unit rate(s) and standing charge(s).
  3. Calculate: (kWh × unit rate) + (standing charge × 365). If you have Economy 7, split day/night kWh.
  4. Use the results to compare tariffs like-for-like. Don’t compare a single-rate estimate to an Economy 7 estimate without matching usage split.

Costs, exclusions and common pitfalls (UK)

These are the areas that most often cause confusion when people search regional price cap rates by postcode.

1) The cap isn’t a cap on your bill

Your total cost depends on how much energy you use. A high-usage household can pay more than the headline “typical bill” figure even if their rates are capped.

2) Fixed deals can be above or below the cap

The cap restricts default tariff rates, not fixed tariffs. Some fixed deals may look higher but offer stability; others may be cheaper.

3) Exit fees and switching timing

If you’re on a fixed tariff, check for exit fees and whether they apply within a certain window before the end date.

4) Meter type mismatches (single-rate vs Economy 7)

Economy 7 tariffs have separate day and night unit rates. If you don’t know your day/night usage split, comparisons can be misleading.

5) Prepayment vs Direct Debit

Ofgem publishes different cap levels depending on how you pay. Make sure your comparison matches your payment method.

6) “No gas supply” homes

If your property is electricity-only, focus on electricity standing charges and unit rates. Comparing dual-fuel bundles may not be relevant.

Moving home tip: The supplier might stay the same at the property, but your tariff may revert to a default tariff if the previous occupant’s deal ended. Take meter readings on move-in day and ask what tariff you’re placed on.

FAQs

Are price cap rates the same across the whole UK?

No. While the price cap rules are national (set by Ofgem), the capped standing charges and unit rates can vary by region. That’s why postcode matters when estimating costs.

Does the price cap apply to fixed tariffs?

Generally, the price cap applies to standard variable and default tariffs. Fixed tariffs are priced by the supplier and can be above or below the cap. Always check the tariff’s unit rates, standing charges, term length and exit fees.

Why can standing charges be higher in some areas?

Standing charges include network and policy costs that can differ by region. In practice, this can make two postcodes pay noticeably different daily charges even on similar tariffs.

I’m on Economy 7 — does region still matter?

Yes. Economy 7 has separate day and night unit rates plus a standing charge, and regional variation can apply. For a fair comparison, you need an estimate of your day vs night usage split.

Will my rates change if I move within the same town?

Possibly. Neighbouring postcodes can sometimes fall into different network regions, but often they don’t. The safest approach is to check using the exact new property postcode and your meter type.

Can my supplier charge more than the cap?

If you’re on a standard variable or default tariff covered by the cap, the supplier must keep unit rates and standing charges within the capped limits for your region/payment method/meter type. If you’re on a fixed tariff, rates can be different (subject to your contract terms).

Is comparing still worth it if I’m already “on the cap”?

Often, yes — because the cap does not guarantee you’re on the cheapest option. But you should compare carefully: check exit fees (if fixed), what happens after the fix ends, and whether your meter type matches the tariff.

Where can I get help if I can’t afford my energy bills?

Start with your supplier (ask about affordable repayment plans and support). You can also use independent help from Citizens Advice, and check GOV.UK for benefits and cost of living support information.

Trust, methodology and sources

Editorial accountability

Reviewed by
Energy Specialist
Last updated
April 2026

How we assess “regional price cap rates by postcode”

This page is designed to answer what changes by location without pretending one national figure fits every home. Here’s our approach:

  • Scope: UK domestic consumers (homeowners and tenants), not business energy.
  • What we mean by “regional”: The price cap is published with regional components that affect standing charges and unit rates depending on the household’s network region and settings.
  • What we do on this page: Explain what can vary by region and show worked examples so you can estimate impact using your own usage.
  • What we don’t do: We do not publish a static “postcode-to-rate” database here because cap tables update regularly and are easy to misread without payment method/meter type.
  • Assumptions in examples: We use simple annual kWh figures and illustrative p/kWh and p/day rates to demonstrate sensitivity to standing charges and unit rates.
  • Limitations: Your actual price depends on your tariff, supplier, meter type, payment method, and any discounts/fees. Network changes and regulatory updates can change cap levels over time.

Best practice: For accurate results, compare using your postcode plus your meter and payment method — and, ideally, your annual consumption in kWh.

Sources (UK)

Links are provided for independent guidance and regulator publications. Always check the latest cap period documentation for current rates.

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Updated on 3 Apr 2026