How do I find the cheapest local energy tariff by postcode this week?

Enter your UK postcode to see live local energy deals available in your area this week. Prices and availability vary by region and network, so postcode is the quickest way to identify the cheapest tariff you can actually switch to. Compare unit rates, standing charges, and any exit fees before choosing a plan.

Why does the cheapest energy tariff differ by postcode in the UK?

Energy prices can differ by postcode because regional distribution network costs vary across the UK. Suppliers may also offer different deals by area and meter type. That means the cheapest tariff for one postcode may not be the cheapest for another—even in the same city.

What should I compare besides the headline price?

To choose the best-value tariff, compare (1) electricity and/or gas unit rates, (2) daily standing charges, (3) tariff length and whether rates are fixed or variable, (4) any exit fees, and (5) payment method requirements (e.g., Direct Debit). A slightly higher unit rate can be cheaper overall if the standing charge is lower for your usage.

Is a fixed tariff or variable tariff usually cheaper?

It depends on market conditions. A fixed tariff can protect you from price rises for the fixed term, while a variable tariff can move up or down. When looking for the cheapest deal this week by postcode, compare the total estimated annual cost and consider whether price certainty (fixed) or flexibility (variable) matters more to you.

Can I switch energy supplier if I rent or live in a flat?

In most cases, yes—if you pay the energy bills and have an individual meter. You typically cannot switch if bills are included in rent or you’re on a communal/landlord supply. Use your postcode and address details to confirm what tariffs are available for your meter setup.

How long does it take to switch to a cheaper tariff?

A UK energy switch is usually completed within around 5 working days under faster switching. Your supply won’t be interrupted. You’ll receive confirmation from your new supplier, and your old supplier will send a final bill using an opening meter reading (or smart meter reading where available).

Will switching affect my energy supply or smart meter?

No—your gas and electricity won’t go off when you switch. Smart meters generally keep working, though smart functionality can vary by supplier and meter model. If you have a smart meter, you can still compare and switch; your new supplier will advise if any settings change.

Are there any fees for switching to the cheapest local tariff?

Switching itself is typically free, but your current tariff may have an exit fee if you leave during a fixed term. Always check your current plan details and factor any exit fee into your savings calculation before switching.

How do I know the cheapest tariff is right for my usage?

The cheapest tariff depends on your consumption. For accurate comparisons, use your annual kWh (from your bill) or enter realistic usage estimates. Then compare total estimated annual cost, not just unit rate. If your usage is low, a lower standing charge can be more important; for higher usage, the unit rate often matters more.

Cheapest local energy tariff by postcode (UK) — this week

Q: Where can I compare and switch to a cheaper tariff by postcode?

You can compare local tariffs by postcode and start your switch at https://www.energyplus.co.uk/local/cheapest-local-energy-tariff-by-postcode-uk-this-week. Check availability for your address, review tariff details, and proceed with the switch when you’re ready.

See the cheapest estimated tariffs available for your exact postcode and home setup (meter type, payment method and usage) — with clear caveats and a transparent methodology.

Whole-of-market comparison: fixed, variable and tracker tariffs where available
Local results: availability and pricing can vary by region and postcode
Built for UK homes: smart/prepay, Economy 7, and dual fuel vs electricity-only

Get your local tariff results How we assess “cheapest”

Estimates only. Prices and eligibility depend on your postcode, meter type, payment method and usage. Always check tariff terms before switching.

Fast answer: what’s the cheapest local tariff in my postcode this week?

In the UK, the cheapest tariff “for you” is usually the one with the lowest estimated annual cost once your postcode region, meter type, payment method and usage are factored in.

Why postcode matters: standing charges and unit rates vary by distribution region (and sometimes by supplier availability). Two neighbours can see different “cheapest” outcomes if their meters or payment methods differ.

Key takeaways (before you compare)

Fixed deals can be cheapest when they undercut the current variable price — but check exit fees and the end date.
Tracker deals may look cheapest today but can rise quickly; they suit households that can tolerate bill changes.
Prepayment meters (PPM) and Economy 7 often have different pricing structures; comparing like-for-like is essential.
The true “cheapest” depends on your kWh usage; a low standing charge can matter more for low users, while unit rates dominate for high users.

Best next step: run a local comparison with your postcode and meter details to see eligible tariffs and estimated annual costs.

If you’re in a contract: check your tariff end date and any exit fee. Many suppliers allow penalty-free switching in the final 49 days of a fixed term (confirm with your supplier).

Get the cheapest local tariff for your postcode

Enter a few details and we’ll show postcode-specific results with estimated annual costs. This is designed for UK household energy only (not business).

Tip for accuracy: if you have a recent bill, use your annual kWh (or monthly kWh) rather than guessing. If you don’t, we’ll guide you with typical usage ranges.

What you’ll need (30–60 seconds)

Your postcode (pricing is region-linked)
Whether you’re dual fuel (gas + electric) or electric-only
Your meter type (smart/credit, prepay, Economy 7)
Your approx usage (low/medium/high, or kWh from your bill)

Two realistic examples (for context only)

Scenario A: London flat, electric-only

Assumptions: 1–2 bed flat, credit meter, Direct Debit, low-to-medium usage: 2,200 kWh/year.
What often drives “cheapest”: Low users are sensitive to standing charge. A tariff with a slightly higher unit rate can still win on annual cost if standing charge is lower.
Illustrative outcome: If Tariff 1 saves 2p/kWh but costs 10p/day more standing charge, annual impact ˜ £44 saved on units vs £36.50 added standing charge ? net ˜ £7.50 better (before any fees). (2,200×£0.02=£44; 365×£0.10=£36.50)

Scenario B: Midlands house, dual fuel

Assumptions: 3 bed house, credit meter, Direct Debit, medium usage: 2,900 kWh electricity and 12,000 kWh gas per year.
What often drives “cheapest”: For gas-heated homes, the gas unit rate typically dominates. Even a small per-kWh difference can outweigh standing charge differences.
Illustrative outcome: If a fixed deal is 1p/kWh cheaper on gas than another option, estimated annual impact ˜ £120 (12,000×£0.01), before exit fees or other terms.

Important: these are simplified illustrations to explain how “cheapest” is calculated. Your actual estimate depends on current prices in your region, your payment method, and the tariff’s exact unit rates, standing charges and fees.

Check tariffs for your postcode

We’ll use these details to prepare your comparison and help you switch if you choose.

First name

Surname

Postcode

We use your postcode to identify your electricity/gas region and show eligible tariffs.

Used to send your comparison summary and next steps (you can opt out).

Telephone

Optional, but helps if you want support choosing between similar tariffs.

By submitting, you confirm you’re comparing for a UK home address.

Why results can differ from a friend’s

Payment method: Direct Debit vs pay on receipt of bill vs prepay.
Metering: single-rate vs Economy 7 (two rates) vs smart variants.
Eligibility: some tariffs are for new customers only, or require smart meters.
Regional charges: standing charges vary by area.

Compare tariff types (and when each is “cheapest”)

“Cheapest” isn’t only about today’s unit rate. It’s the estimated annual cost plus the risk and flexibility you’re comfortable with.

Tariff type	How pricing works	Often cheapest for…	Watch-outs
Fixed	Unit rates & standing charge set for a term (often 12–24 months).	People who want bill stability and a clear end date.	Possible exit fees; if prices fall, you may be locked in.
Variable (SVT)	Price can change; many households are on a supplier’s Standard Variable Tariff.	Short-term flexibility with no fixed term.	May not be the cheapest; price changes can happen with notice.
Tracker	Moves with an index (often linked to market or a published rate); terms vary.	Confident switchers who can tolerate rate changes.	Can rise quickly; may have caps/limits or exit fees—read the T&Cs.
Time-of-use (e.g. Economy 7)	Different rates for day/night; needs the right meter and usage pattern.	Homes using lots of electricity overnight (storage heaters, EV charging).	If most usage is daytime, costs can be higher even if the night rate is cheap.

Decision checklist: who local “cheapest” deals suit (and who they don’t)

Often suits you if…

You can provide a realistic usage estimate (or have a bill).
You want to compare standing charge vs unit rate, not just the headline.
You’re happy to switch online and manage your account digitally.
You can pass any eligibility checks (e.g. smart meter requirement).

May not suit you if…

You’re on prepay and can’t (or don’t want to) change meter/payment method.
You’re moving home soon and need maximum flexibility (exit fees could matter).
You rely on a specific billing method (e.g. quarterly paper bills) that some deals don’t support.
You have complex metering (some multi-rate setups need specialist quoting).

Good to know: if two tariffs are within a few pounds per year on your estimate, prioritise the better fit (exit fees, customer service, payment flexibility) rather than chasing tiny differences.

Costs, exclusions and common pitfalls (so “cheap” stays cheap)

When people feel disappointed by a “cheap” tariff, it’s usually because of eligibility rules, meter mismatches, or fees that weren’t obvious at first glance.

1) Exit fees

Many fixed (and some tracker) tariffs include exit fees per fuel. If you might switch again soon, check the fee and the penalty-free switching window with your supplier.

2) Standing charge vs unit rate

A lower unit rate can be offset by a higher standing charge (or vice versa). Always judge by estimated annual cost for your usage, not a single headline number.

3) Payment method assumptions

Direct Debit pricing can differ from pay-on-receipt-of-bill or prepay. Make sure you compare on the method you’ll actually use.

4) Meter type & registers

Economy 7 and other multi-rate meters need the right tariff structure. Switching to a single-rate tariff when you rely on night rates can increase bills.

5) Intro offers and conditional discounts

Some tariffs include discounts that depend on app billing, paperless comms, or bundled services. Confirm what’s included in the quoted estimate.

6) “New customer only” eligibility

Some of the cheapest tariffs are restricted to new customers or specific regions. If you’re already with the supplier, you might not qualify.

Quick sense-check: before switching, confirm (1) tariff name, (2) end date, (3) exit fees, (4) payment method, (5) meter compatibility, and (6) estimated annual cost using your usage.

FAQs

Why is the cheapest tariff different by postcode?

Electricity (and sometimes gas) standing charges and unit rates vary by region due to network and regional cost differences. Suppliers also price and offer tariffs differently across regions, so availability can change by postcode.

Is the cheapest tariff always a fixed deal?

Not always. A fixed tariff can be cheaper if its rates are below comparable variable options in your region, but trackers or competitive variable deals can be lower at certain times. “Cheapest” also depends on how you value stability vs flexibility.

Can I switch if I have a prepayment meter?

Often yes, but your options can be more limited and pricing can differ. Some suppliers require a smart prepay setup, or a credit check to move from prepay to credit. Always compare using the meter/payment method you’ll keep.

What if I’m on Economy 7?

Economy 7 has separate day and night rates. The cheapest option depends on how much electricity you use overnight. If you have storage heaters or charge an EV overnight, Economy 7 can be competitive; otherwise, a single-rate tariff may be better.

Will switching interrupt my supply?

Switching supplier should not interrupt your gas or electricity supply. Your meters and pipes/wires stay the same. The main thing to get right is your opening/closing meter readings (or smart reads) so the final and first bills are accurate.

How quickly do “this week” cheapest tariffs change?

They can change at any time: suppliers may withdraw tariffs, adjust prices, or limit availability by region. Use the results as a current snapshot and always confirm the tariff details at application stage.

Does dual fuel always work out cheaper?

Not always. Some suppliers price dual fuel competitively, but you can sometimes pay less by splitting gas and electricity between different suppliers. The best approach is to compare both ways using your actual usage and tariff terms.

What details make the biggest difference to my quote?

Your annual kWh usage, payment method (especially Direct Debit vs other methods), meter type (single-rate, Economy 7, prepay), and whether you have gas at the property. Postcode region then affects the exact standing charges and rates available.

How we assess “cheapest local tariff” (methodology)

EnergyPlus ranks tariffs using estimated annual cost for the home details provided. We prioritise clarity over hype: the cheapest tariff is the one that is eligible and lowest estimated cost for your setup — not a generic national headline.

Inputs we use

Postcode region (for regional pricing/availability)
Fuel type: dual fuel or electricity-only
Meter type: single-rate, Economy 7/multi-rate, smart, prepay
Payment method (e.g. Direct Debit where applicable)
Usage (kWh/year, or a usage band if you don’t know)

What “estimated annual cost” includes

Unit rates (p/kWh) multiplied by your annual usage
Standing charges (p/day) multiplied by 365
Any clearly stated tariff-level recurring charges (where shown)

We show key terms so you can judge value beyond price.

Limitations & caveats

Tariffs can be withdrawn or repriced at short notice.
Eligibility rules can exclude some households (e.g. smart meter requirement, new customers only).
Non-energy costs (like boiler servicing add-ons) may not be included in the estimate unless clearly priced.
Economy 7 outcomes depend on your day/night split; if unknown, estimates may be less accurate.

Editorial promise: We aim to present the cheapest eligible options clearly, alongside the key terms that influence real-world cost (fees, payment method, meter compatibility, and term length).

Trust & editorial details

Written by: EnergyPlus Editorial Team
Reviewed by: Energy Specialist
Last updated: April 2026

Sources we rely on (UK)

We also cross-check supplier tariff terms presented during application. Always read the tariff facts/terms before you proceed.

Ready to see your cheapest local tariff options?

Get postcode-level results with the key terms that matter (fees, meter eligibility and payment method). No misleading promises — just clear estimates and next steps.

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If you’re unsure about your meter or tariff name, you can still compare using a recent bill estimate and refine later.

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Updated on 1 Apr 2026