Cheapest green electricity tariff in the UK with no exit fee

Compare whole-of-market UK tariffs to find a genuinely green electricity deal that you can leave at any time. We’ll show what “green” and “no exit fee” really mean, what to check, and how to switch safely.

  • See estimated costs by payment type, region and meter type (standard vs smart vs prepay)
  • Filter for no exit fees and check tariff end dates and price change terms
  • Learn how to spot “greenwashing” and what Renewable Energy Guarantees of Origin (REGOs) do (and don’t) tell you
Get your green tariff quote How we assess “cheapest”

Estimates vary by region, meter type, usage and payment method. Always check tariff terms before you switch.

Fast answer: how to find the cheapest no-exit-fee green electricity tariff

In the UK, the cheapest green electricity tariff with no exit fee is usually a variable or tracker-style tariff (where prices can change) that’s marketed as 100% renewable and doesn’t charge a leaving fee. The “cheapest” option depends heavily on your region, meter type (standard/smart/prepayment) and payment method (Direct Debit is often lowest).

Important: “No exit fee” doesn’t always mean “no cost to leave”. You may still pay for energy used up to the switch date, and some tariffs have rules about introductory discounts, refer-a-friend credits, or price changes.

Key takeaways (read this before you compare)

  • Check the tariff type: variable tariffs can be cheapest today, but prices can rise. Fixed tariffs may include exit fees (not always, but often).
  • Check how “green” is evidenced: many suppliers match usage with renewable certificates (REGOs). Some invest directly in renewable generation; some don’t.
  • Match the tariff to your meter: not all green tariffs are available for prepayment or certain smart meter setups.
  • Compare using the same assumptions: electricity-only cost depends on your annual kWh, standing charge, unit rate, and whether you pay by Direct Debit.

Compare whole-of-market green tariffs (filter: no exit fee)

Use the quote form to compare available UK home energy tariffs that meet your criteria. Once you have results, prioritise deals that clearly state no exit fees and provide transparent information about how their electricity is backed by renewable sources.

What we’ll ask (and why)

Postcode
Sets your electricity region (standing charges and unit rates vary across Great Britain). Northern Ireland is a separate market.
Contact details
So we can send your results and help if you want support switching. (You can ask us not to call.)
Name
Used to personalise your quote and avoid errors if you choose to proceed.

Good to know: if you don’t know your usage, you can still compare based on typical consumption. For the most accurate “cheapest” result, use annual kWh from a recent bill or your online account.

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Compare “green” no-exit-fee tariffs: what to look at

When two tariffs both say “100% renewable” and “no exit fee”, the cheapest option is often decided by a few practical details: standing charge, unit rate, how prices can change, and whether the tariff is available for your meter and payment method.

What you’re comparing Why it matters for “cheapest” What to check in the T&Cs
Unit rate (p/kWh) Main driver of cost if you use a lot of electricity (e.g. heat pump, EV charging, electric showers). Is it variable/tracker? When can it change and how will you be notified?
Standing charge (p/day) Has a bigger impact on low users and small flats; varies by region. Any standing charge discounts? Are they time-limited?
Exit fees A no-exit-fee tariff reduces the risk of being “stuck” if prices fall later. Confirm the fee is £0 for electricity. Check if any dual-fuel bundle has fees on gas.
Payment method Direct Debit is often cheaper than pay-on-receipt. Prepayment can be different again. Are the quoted rates for Monthly Direct Debit? Any additional charges for other methods?
Meter type & eligibility Some tariffs are only for smart meters (or exclude prepay and complex meters). Any restrictions: smart required, Economy 7, prepay, dynamic pricing, EV-only add-ons.
Green claims Not a price factor, but it is the reason you’re choosing a green tariff. Definitions vary. Is it backed by REGOs? Any additional environmental commitments? Is this independently audited?

Quick decision checklist: who it suits

  • You want flexibility to move if a better deal appears (no exit fee).
  • You’re comfortable with prices changing on a variable tariff, or you plan to keep checking the market.
  • You can pay by Monthly Direct Debit (often the best rates).
  • You want “100% renewable electricity” and are happy to compare how suppliers evidence it.

Quick decision checklist: who it may not suit

  • You prefer price certainty for budgeting (consider a fixed tariff, even if the cheapest today is variable).
  • You’re on a prepayment meter and have limited tariff availability.
  • Your meter is complex (e.g. legacy Economy 7/10) and you need specialist tariff support.
  • You want a supplier that directly invests in UK renewable projects (you’ll need to check beyond “REGOs included”).

Costs, exclusions and common pitfalls (UK-specific)

“Cheapest” can change quickly, and some tariff features don’t show up in headline pricing. These checks help you avoid nasty surprises.

1) “No exit fee” vs other leaving costs

You won’t pay an exit penalty, but you still pay for energy used. Also check if you’d lose any account credit or rewards by leaving early.

2) Intro prices and “variable” clauses

A variable tariff may start cheap and rise later. Look for how often prices can change and whether you can switch away easily (you usually can, but check notice periods).

3) Regional pricing differences

Unit rates and standing charges differ across electricity distribution regions. A tariff that’s “cheapest” in one postcode may not be in another.

Two realistic cost scenarios (estimated, for illustration)

These examples show how a tariff that looks cheaper on unit rate can be beaten by a lower standing charge (or vice versa). Your actual quote will depend on your region, rates and usage.

Scenario A: low user in a flat (single occupancy)

  • Assumed annual electricity use: 1,800 kWh
  • Tariff 1 (no-exit-fee green variable): 26.0p/kWh, 65p/day standing charge
  • Tariff 2 (no-exit-fee green variable): 27.5p/kWh, 45p/day standing charge

Estimated annual cost (electricity only):
Tariff 1: (1,800×£0.26)=£468 + (365×£0.65)=£237.25 ⇒ £705.25
Tariff 2: (1,800×£0.275)=£495 + (365×£0.45)=£164.25 ⇒ £659.25

Even with a higher unit rate, Tariff 2 is cheaper because the standing charge is lower.

Scenario B: higher user (family home, more electric use)

  • Assumed annual electricity use: 4,200 kWh
  • Tariff 1 (no-exit-fee green variable): 26.0p/kWh, 65p/day standing charge
  • Tariff 2 (no-exit-fee green variable): 27.5p/kWh, 45p/day standing charge

Estimated annual cost (electricity only):
Tariff 1: (4,200×£0.26)=£1,092 + £237.25 ⇒ £1,329.25
Tariff 2: (4,200×£0.275)=£1,155 + £164.25 ⇒ £1,319.25

At higher usage, unit rate matters more, so the gap narrows. With different real-world rates, the winner can flip.

Caveat: These examples exclude VAT differences (domestic energy is typically charged at 5% VAT), discounts, time-of-use pricing and regional variations. Use them to understand the maths, not to predict your bill.

Common exclusions to watch for

  • Prepayment meters: fewer tariffs available, and “best buy” lists may not apply.
  • Economy 7 / legacy multi-rate meters: check day/night rates and your usage split; “cheapest” depends on when you use electricity.
  • Smart-only tariffs: some require a communicating smart meter for billing and pricing.
  • Northern Ireland: NI operates a different retail market; tariffs shown for Great Britain may not apply.
  • Credit checks / Direct Debit setup: some suppliers require Monthly Direct Debit for their lowest rates.

Green electricity: avoid confusion

In the UK, “100% renewable electricity” claims are commonly supported via REGOs (Renewable Energy Guarantees of Origin). REGOs show that renewable electricity was generated somewhere on the grid, but they don’t necessarily mean your supplier buys power directly from a specific wind farm.

Practical tip: if you care about impact beyond certificates, look for suppliers that publish their fuel mix, disclose how they source renewable electricity, and report on investments in generation or additionality.

FAQs: cheapest green electricity with no exit fee (UK)

Is a “no exit fee” tariff always variable?

Often, but not always. Many fixed tariffs include exit fees, while many variable tariffs don’t. Some suppliers offer fixed tariffs with £0 exit fees, so it’s worth filtering and checking the tariff information label or T&Cs.

What does “100% renewable electricity” mean in practice?

Typically it means the supplier matches customer demand with renewable certificates (REGOs). The electricity physically delivered to homes comes from the national grid mix, but certificates account for renewable generation elsewhere.

Can I switch green electricity tariffs if I’m renting?

Yes, in most cases, as long as you pay the bills and your name is on the energy account. You don’t usually need your landlord’s permission to switch supplier, but you should keep records and make sure the final meter readings are correct.

Does “no exit fee” mean I can leave immediately?

You can usually initiate a switch at any time, but the process can still take time (and timelines vary). You’ll still be billed for energy used up to the switch date. Always check whether there are any notice periods or rules around credits and rewards.

Will a green tariff work with my smart meter?

Usually yes, but some tariffs are smart-meter-only and require your meter to be communicating. If your smart meter goes “dumb” after switching, you can still be supplied, but automated readings and some smart tariffs may not work as intended.

Are green tariffs more expensive in the UK?

Not necessarily. Some green tariffs are competitively priced, and some cost more depending on the supplier’s approach and tariff structure. The cheapest option for you depends on standing charges, unit rates, your usage, and how the tariff can change over time.

What if I’m on prepayment (PAYG)?

You can still compare, but tariff choice may be more limited and pricing can differ. If you’re considering moving from prepayment to credit, check eligibility, any debt management rules, and whether a smart meter can support top-ups.

How do I check if I have an exit fee now?

Look at your latest bill, online account, or the tariff information label. Exit fees are common on fixed deals. If you’re unsure, ask your supplier to confirm in writing before you start a switch.

Trust, methodology and sources

Editorial details

Reviewed by
Energy Specialist
Last updated
June 2026

How we assess “cheapest green electricity tariff UK no exit fee”

This page is a guide to help you compare tariffs sensibly. We don’t claim one supplier is always the cheapest for everyone, because UK electricity prices vary by region, usage, meter type and payment method.

Our comparison assumptions (for examples and explanations)

  • Great Britain domestic supply (England, Scotland, Wales). Northern Ireland differs.
  • Electricity-only maths uses: annual cost ≈ (unit rate × annual kWh) + (standing charge × 365).
  • VAT and extra features (time-of-use, discounts, bundled services) may affect your actual bills.
  • No exit fee means the tariff’s stated exit fee is £0; it doesn’t remove your obligation to pay for energy used.

Limitations: Availability can change daily. Some tariffs are limited to new customers, certain meter types, or specific payment methods. Always check the supplier’s tariff information before agreeing.

Helpful UK sources

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Reminder: Always read the tariff information before switching. If you’re in debt or have a prepayment meter, your options may be different.

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Updated on 6 Jun 2026