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If EDF has quoted you for your business gas or electricity, you've probably clocked that the name on the bill is also the name attached to Hinkley Point C, the nuclear power station taking shape on the Somerset coast. That's not a coincidence buried in the small print: EDF is one of the few UK suppliers that also generates a meaningful share of what it sells, which sets it apart from resellers whose "renewable" tariffs are backed entirely by certificates bought on the open market rather than any generation capacity of their own.
TLDR: EDF is a good choice if you want a nuclear-heavy fuel mix rather than a REGO-badged blend, and a fixed contract that can run up to four years where most rivals cap out at two or three. Where it falls down is service: Citizens Advice and Which? both currently rank EDF below the Big Six average.
That generation link shapes how EDF's fuel mix looks on paper, but it doesn't automatically translate into good value or good service, and the independent data on EDF is more mixed than its scale and heritage suggest.
This guide covers what EDF Energy is, what it charges business customers, how its tariffs work, what real customers and independent bodies say about its service, and where it wins or loses against the rest of the UK business energy market.
We'll also cover the practical bits: how to switch to EDF, how to leave if it isn't working out, and how to compare it properly against everyone else before you sign anything.
More About EDF Energy
EDF Energy was formed in January 2002, following the merger of three regional suppliers, London Electricity, SEEBOARD and SWEB Energy, along with two coal-fired power stations and a combined cycle gas turbine plant. In 2009, EDF took a much bigger step: it acquired British Energy, the UK's nuclear generator, buying the share capital directly from the government. That deal is why EDF now operates the UK's nuclear fleet, including Heysham, Hartlepool and Torness, and it's the reason EDF markets itself as Britain's biggest generator of zero-carbon electricity.
EDF Energy is a wholly owned subsidiary of Électricité de France (EDF Group), the majority French state-owned energy company. Its UK chief executive is Simone Rossi, in post since November 2017, who also sits on EDF Group's international executive committee. Across residential and business customers, EDF supplies around 5 million UK accounts.
Like most large suppliers, EDF has grown partly by absorbing failed or exiting competitors. It took on customers from Green Network Energy, Zog Energy, iSupply Energy and Utility Point when those smaller suppliers stopped trading, and more recently picked up Opus Energy's business customers when Opus ceased trading in September 2024. If you were on Opus Energy and haven't actively agreed a new contract since, it's worth checking your current tariff, since you may now be on EDF's more expensive default rates without realising it.
EDF is also in the middle of building the UK's first new nuclear power station in a generation. Hinkley Point C is under construction in Somerset, and EDF holds a 12.5% minority stake in a near-identical project at Sizewell C in Suffolk. Between them, EDF says the two stations will eventually provide enough low-carbon electricity to meet a meaningful share of UK demand.
Where EDF Fits in the UK Energy Market
The original "Big Six" (British Gas, EDF, E.ON, npower, Scottish Power and SSE) dominated the market for two decades, but that line-up has since changed. E.ON acquired npower in 2019, and OVO Energy acquired SSE's domestic supply business in 2020. Octopus Energy, a challenger brand launched in 2015, grew large enough through organic growth and acquisitions to take one of the vacated places.
As of 2026, the six largest energy suppliers in the UK by market share are Octopus Energy, British Gas, E.ON Next, OVO Energy, EDF Energy and ScottishPower. Unlike Octopus, which is a relatively new entrant to that group, EDF is one of only two suppliers (alongside British Gas) that have held its Big Six place continuously since the term was first coined.
What sets EDF apart from the rest of that group is the generation side of its business. Where British Gas and Octopus are primarily retailers buying electricity on the wholesale market, EDF also owns and runs a significant chunk of the UK's power stations. When we researched this piece, that distinction came up repeatedly in how EDF talks about its own fuel mix, and it's worth bearing in mind when you compare its sustainability claims against a supplier that's purely a reseller.
EDF: Key Facts
Founded | 2002 (nuclear generation added via the 2009 British Energy acquisition) |
UK CEO | Simone Rossi (since November 2017) |
UK customer accounts | Around 5 million, residential and business combined |
Part of the Big Six? | Yes, one of two suppliers (with British Gas) that has held its place since the term was first used |
Business contract lengths | 1 to 4 years fixed, plus variable options |
Standard fuel mix | 54.8% nuclear, 21.0% gas, 18.2% renewable, 4.2% coal, 1.8% other |
Exit fees | Apply on fixed tariffs; none on Freedom variable tariffs |
Trustpilot rating | 4.8 out of 5, "Excellent", from around 249,000 reviews (August 2026) |
Citizens Advice rating | 2.90 out of 5, ranked 11th of 16 rated suppliers (Jan to Mar 2026) |
Which? status | Not a Recommended Provider; total score 58% |
Smart meter support | Yes, SMETS2 and AMR, free installation, typically 60 to 90 minutes |
Best known for | Nuclear-heavy generation, longer fixed terms, small business specialist team |
Which Businesses is EDF Suitable For?
EDF is a reasonable fit if you recognise your business in any of these:
Businesses that want price certainty for longer. EDF fixes for 1 to 4 years, where several rivals, Octopus included, cap their standard fixed contracts at 36 months.
Businesses that care about a fuel mix that's actually renewable. Because EDF generates a large share of what it supplies, its standard fuel mix is unusually low in fossil fuels compared with suppliers that buy 100% of their power on the open market.
Businesses that want a small business team rather than a self-service digital product. EDF runs a dedicated small business sales and specialist team, reachable by phone Monday to Thursday, 9 am to 6 pm, and Friday, 9 am to 4 pm.
Businesses generating their own solar, wind or hydro power. EDF's Export tariffs pay for electricity you send back to the grid, and it's one of the larger suppliers still actively taking on export customers.
Small businesses that want sustainability support. EDF has partnered with the Federation of Small Businesses to offer eligible small businesses a £5,000 sustainability grant or a free workplace EV charger.
Multi-site businesses that want one supplier managing several meters, though EDF asks existing multi-site customers to call rather than quote online.
When a Different Supplier Makes More Sense
EDF isn't the best option for everyone, and the independent data makes that fairly clear.
Businesses that prioritise customer service quality. Citizens Advice ranked EDF 11th of 16 rated suppliers for January to March 2026, and Which? placed it among the three lowest-scoring suppliers overall in its 2026 survey, alongside British Gas and Scottish Power. See our British Gas and Octopus reviews if service quality is your main driver, since Octopus in particular scores well ahead of EDF on the same measures.
Cost-sensitive small businesses. Several comparison sites we checked put EDF in the middle of the pack on unit rates for micro-usage sites, with specialist small-usage suppliers often undercutting it. It tends to be more competitive for medium-usage sites in the 50,000 to 250,000 kWh band.
Businesses that want a 100% renewable default. EDF's zero carbon products for larger customers are backed mainly by nuclear generation. For small businesses, the closest EDF product to a fully renewable supply is its separate Fixed Renewable Tariff, not the default fixed rate.
Businesses that want to avoid exit fees on a fixed deal. EDF's fixed tariffs carry exit fees like most fixed contracts in the market; only its variable Freedom tariffs are fee-free to leave.
Anyone weighing EDF specifically against Octopus or British Gas. Both of those suppliers currently outscore EDF on Citizens Advice and Which?'s most recent data, so it's worth reading our individual reviews of each side by side in the meantime.
EDF Suitability by Business Type
Business type | Recommended if | Better alternative if not |
|---|---|---|
Sole trader, home office, micro business | You want a long fix and don't mind a mid-pack unit rate | A specialist small-usage supplier for a lower headline rate |
Retail, hospitality, office SME | You want up to 4 years of price certainty | Octopus or British Gas if service track record matters more than contract length |
Businesses prioritising service quality | Rarely the strongest pick on current data | Octopus Energy or E.ON Next, which outperform on Citizens Advice and Which? scores |
Solar, wind or hydro generators | You want a supplier that actively buys export electricity | N/A, this is a genuine strength |
Businesses wanting 100% renewable electricity as standard | You're happy to actively choose the Fixed Renewable Tariff rather than the default | A supplier where 100% renewable is the default fixed product |
Multi-site SME | You're comfortable calling rather than quoting online for extra sites | A supplier with a fully self-service multi-site portal |
The Business Tariffs EDF Offers
EDF doesn't publish one universal price list, any more than the other large suppliers we've reviewed in this series. Quotes are built around postcode, meter type and usage, so the products below are what you'll be offered rather than fixed prices. As of 2026, the main small business options are:
Fixed for Business. The standard fixed tariff, locking in your unit rate and standing charge for 1 to 4 years. Paying by Direct Debit earns a discount, and exit fees apply if you leave early.
Fixed for Business Online. EDF's cheapest small business tariff, with account management handled entirely online. It requires you to agree to a smart meter installation if you don't already have one, and exit fees apply.
Fixed Online Zero Standing Charge. A fixed-rate tariff with no daily standing charge, available across the same 1 to 4 year terms, aimed at businesses with genuinely low, spiky, or seasonal usage where a flat daily fee doesn't reflect how they actually consume energy.
Fixed Renewable Tariff. EDF's small business green option, certified 100% renewable and backed by Renewable Energy Guarantees of Origin (REGOs), on the same 1 to 4 year fixed terms as the standard product.
Freedom for Business. The variable tariff. Rates move with the market, Direct Debit customers get a discount, and there are no exit fees, which makes it a reasonable holding position between fixed contracts.
Freedom Advanced. A variable tariff for customers with a half-hourly (HH) or AMR meter, again with no exit fees.
Fixed Advanced. The fixed-rate equivalent for half-hourly and AMR metered customers, with exit fees that may apply.
Export Variable, Export Variable Value and Export 12M Small Business. Payment tariffs for businesses generating their own electricity from solar PV, wind, hydro or micro-CHP and exporting the surplus back to the grid. None of the export tariffs carries exit fees.
Deemed and Extended Supply rates. The default rates applied automatically if you move into a premises without agreeing a contract, or if a fixed term lapses without renewal. These are consistently the most expensive rates on EDF's books, running into the mid-30s pence per kWh range by some broker estimates, well above any negotiated fixed deal.
For larger customers, EDF also offers a Zero Carbon for Business product (formerly branded Blue for Business), backed 100% by nuclear generation. In our experience checking EDF's own site, that particular tariff sits under EDF's large business pages rather than its small business range, so if you're a smaller SME wanting a zero carbon or renewable supply, the Fixed Renewable Tariff is the more realistic starting point.
EDF's Business Contract Terms
EDF's standard fixed contracts run from 1 to 4 years, longer than most rivals' 2 to 3 year cap. Freedom variable plans have no fixed term and no exit fees.
As with any UK business energy contract, it's worth flagging clearly: business energy contracts don't come with a statutory cooling-off period the way domestic contracts do. Once you've signed, you're generally committed for the length of the agreement, so it's worth checking terms before you do, not after.
One thing that has genuinely improved for smaller customers: from October 2022, Ofgem stopped suppliers requiring microbusinesses to give notice before switching away at the end of a fixed term. EDF confirms this applies to its own contracts too, meaning if you're a microbusiness coming to the end of a Fixed for Business deal, you don't need to tell EDF in advance that you're leaving; only evergreen or rollover tariffs still require 30 days' notice.
If your contract ends and you take no action, you're moved onto EDF's Extended Supply rates rather than losing power. If you're moving into premises EDF already supplies without arranging your own agreement, you'll be placed onto a Deemed contract instead, and both defaults sit well above negotiated fixed rates.
EDF Business Prices
EDF doesn't publish a standard rate card for negotiated small business contracts, so quotes are individually built for your postcode, meter and usage band. Based on aggregated broker and comparison-site data checked in August 2026, typical negotiated fixed rates for SME-scale usage sit roughly in the range of 23 to 28p/kWh for electricity under 50,000 kWh a year, and 6 to 9p/kWh for gas, with standing charges commonly running 40 to 60p a day for electricity and 28 to 42p a day for gas. One tracker put a typical 2-year fixed SME quote at around 27.9p/kWh for electricity and 8.3p/kWh for gas as of May 2026.
Several brokers we checked note EDF tends to be more competitive in the 50,000 to 250,000 kWh medium-usage band than at the smallest micro-business end, where dedicated low-usage specialists often undercut it.
Treat any of these figures, including ours, as a starting point rather than a guarantee. Use our free business energy calculator to work out your actual usage before requesting quotes, since your postcode, meter type and contract length will move the number your business is actually offered.
If you're on EDF's Deemed or Extended Supply rates, it's worth moving off them quickly. By broker estimates, Extended Supply pricing can reach the mid-30s pence per kWh, considerably more than any negotiated fixed deal, and there's no benefit to staying on it while you shop around.
How EDF Backs Up Sustainability Claims
EDF's own annual Fuel Mix Disclosure, covering April 2024 to March 2025, shows its supply licence as 54.8% nuclear, 21.0% gas, 18.2% renewable, 4.2% coal and 1.8% other, with carbon intensity of 135g CO2/kWh against a UK average of 154g CO2/kWh over the same period. That's a genuinely different profile from suppliers that buy their entire supply on the open market, since a large share of EDF's nuclear output comes from stations it operates directly.
It's worth understanding what EDF's own tariffs do with that mix, because it varies by product. EDF's Zero Carbon products (aimed at larger customers) are backed 100% by nuclear generation. Its Renewable products, including the small business Fixed Renewable Tariff, are backed 100% by REGO certificates from renewable sources. Everything else, EDF's "all other" tariff bucket, which is what most standard Fixed for Business customers are actually on, blends to roughly 53% nuclear, 36% gas, 7% coal and 3% other, a carbon intensity of 233g CO2/kWh, notably higher than EDF's headline supply-wide average.
In practice, that means the "biggest generator of zero carbon electricity" claim EDF makes about itself is true on a generation basis across its whole business, not automatically true of the specific tariff a standard small business customer signs up to. If a genuinely low-carbon supply matters to your business, it's worth explicitly asking for, or upgrading to, the Renewable or Zero Carbon product rather than assuming the standard fixed tariff carries the same credentials.
Which?'s 2026 Eco Provider assessment gave EDF a sustainability score of 55%, out of a range of 0% to 85% across the suppliers it reviewed. Which? noted that EDF still holds contracts with fossil fuel generation, buying electricity from gas power plants to balance its own output, and flagged that EDF's own operational emissions are among the higher end of the suppliers it compared.
EDF's Fuel Mix
Fuel mix reporting for EDF is worth reading carefully, because different sources cover different time periods and scopes. Citizens Advice's supplier data, drawn from a recent quarter, shows EDF's mix as:
Source | Share |
|---|---|
Fossil fuel | 24% |
Nuclear | 54% |
Renewable | 20% |
Other | 2% |
That's broadly consistent with EDF's own regulatory disclosure above, with only minor differences that reflect the different reporting windows and rounding rather than any real discrepancy. The honest takeaway is that EDF's electricity is consistently around half nuclear, with fossil fuels typically making up a fifth to a quarter of the remainder, a meaningfully lower fossil fuel share than several of its Big Six rivals, but not the fully renewable picture its "zero carbon" branding might suggest on a first read.
What Real Businesses Say About EDF
Customer service is the area where EDF's reputation has become noticeably shakier in recent years, and it's worth setting expectations against the actual data rather than the brand's own marketing.
Trustpilot. EDF's main UK profile is rated "Excellent" at 4.8 out of 5 from around 249,000 reviews as of August 2026, checked on Trustpilot's official EDF page. That figure blends domestic and business reviews rather than separating them out, and it's worth noting that review volume this high tends to reflect EDF's sheer customer base as much as universal satisfaction.
Citizens Advice. For January to March 2026, EDF scored 2.90 out of 5 overall, ranking 11th of 16 rated suppliers. Its breakdown: 2.0 out of 5 for fewer complaints received, 3.2 out of 5 for contact waiting time, 3.0 out of 5 for billing and metering accuracy, and a full 5 out of 5 for customer commitments, reflecting membership of schemes like the Energy Switch Guarantee. Citizens Advice separately reported that EDF's average call waiting time rose sharply over the course of a year, a pattern that's shown up in its complaints-handling score too.
Which? EDF is not currently a Which? Recommended Provider. Its 2026 survey, based on responses from 1,123 EDF customers among nearly 12,000 surveyed overall, gave EDF a total score of 58%, made up of a 65% customer survey score and a 50% Which? assessment score. Customers rated EDF two stars across every measure, including customer service overall, ease of contacting, and value for money. In Which?'s own behind-the-scenes assessment, EDF scored particularly poorly on contacting your supplier, but performed well for supporting vulnerable customers, one of the top scorers in that category alongside Ecotricity, E.ON Next and Ovo Energy.
Reddit and wider sentiment. Business-specific discussion is thin compared with the volume of domestic commentary, a pattern we've found researching every supplier in this series: most business owners simply don't post about their energy supplier the way they might about a bank or accountant. Where EDF does come up, complaints tend to cluster around smart meter installation delays and billing corrections after a meter exchange, echoing the billing and metering weakness that shows up in Citizens Advice's own data.
The honest summary: EDF's Trustpilot score and its longer fixed contracts are genuine strengths, and its support for vulnerable customers scores well even in an otherwise weak Which? assessment. But on the two most rigorous independent measures, Citizens Advice and Which?, EDF currently sits below the Big Six average rather than above it, and its own spokesperson has acknowledged there's more work to do. That's a meaningfully different picture from a supplier that scores consistently well across all sources, and it's worth weighing against the reassurance of EDF's scale and generation heritage.
Smart Meters and Small Business Tools
EDF installs SMETS2 smart meters, or AMR meters where a site's setup requires it, at no extra cost for eligible business customers. Installation is cost-neutral against non-half-hourly meters and typically takes 60 to 90 minutes, with power turned off for around 30 minutes during the swap. If your premises still runs on a Radio Teleswitch Service (RTS) meter, it's worth prioritising an upgrade: RTS switch-off began in mid-2025, and without an upgrade, some heating and hot water systems can be disrupted.
Beyond metering, EDF's small business toolkit includes:
MyAccount, EDF's online portal for meter readings, billing, tariff renewals and account management.
A £5,000 sustainability grant or free workplace EV charger, available to eligible small businesses through EDF's partnership with the Federation of Small Businesses.
A dedicated small business sales and specialist team, reachable Monday to Thursday, 9 am to 6 pm, and Friday, 9 am to 4 pm.
Export tariffs and support for businesses generating their own solar, wind or hydro electricity.
Net zero and EV charging solutions for larger businesses, including corporate power purchase agreements (CPPAs) and workplace EV charging installed through partners like Pod Point, though this side of EDF's offer is mainly pitched at large business customers rather than typical SMEs.
One area where EDF is less developed than some newer entrants: it doesn't offer the kind of time-of-use or smart demand-shifting tariffs that Octopus's Shape Shifters range provides. If your business can genuinely move usage into cheaper overnight or off-peak windows, that's worth checking against a supplier that rewards it directly, rather than assuming a standard fixed tariff captures the same value.
EDF for Business: Trade-Offs
Pros | Cons |
|---|---|
Fixed for up to 4 years, longer than most rivals | Ranked 11th of 16 suppliers by Citizens Advice (Jan to Mar 2026) |
Fuel mix genuinely backed by EDF's own nuclear generation, not just certificates | Not a Which? Recommended Provider; among the three lowest-scoring suppliers in 2026 |
Strong Trustpilot score from a very large review base | No statutory cooling-off period on business energy contracts |
£5,000 sustainability grant or free EV charger via the FSB partnership | Standard Fixed for Business tariff isn't fully renewable; that's a separate product |
No exit fees or notice required on Freedom variable tariffs | Exit fees apply on fixed tariffs, and micro-usage sites often see better rates elsewhere |
Dedicated small business sales and support team | No time-of-use or smart demand-shifting tariffs, unlike some competitors |
Doesn't publish a standard rate card; pricing is individually quoted like most suppliers |
Switching to EDF, Step by Step
Get a quote. You'll need your business postcode, an estimate of your annual consumption from a recent bill, and ideally your MPAN (electricity) or MPRN (gas) reference number. EDF advertises a 60-second online quote for new small business customers.
Choose your tariff and contract length. EDF will show unit rates, standing charges and terms from 1 to 4 years, or a Freedom variable option.
Confirm your details and sign up. If you're already supplied by EDF, you'll need to call rather than quote online for a renewal or a switch between tariffs.
A credit check may be carried out as part of setting up your account, in line with standard practice across the market.
The switch completes, typically within a matter of days once your account details are confirmed, without any interruption to your supply.
Provide a meter reading at the point of switchover to help ensure accurate opening billing.
Ongoing billing runs by Direct Debit, with a discount typically available for paying this way.
Exit Fees and Ending Your Contract Early
There's no statutory cooling-off period on business energy contracts. As with every supplier we've reviewed in this series, this is worth repeating because it catches people out: domestic energy customers get 14 days to change their mind, but business customers, EDF's included, generally don't.
Fixed-term contracts can carry exit fees if you leave early. EDF doesn't publish a single flat figure; the amount is set out in your specific contract terms and depends on your tariff and remaining term.
Freedom variable and Freedom Advanced tariffs carry no exit fees, so you can move to a new supplier at any time.
Microbusinesses don't need to give notice to leave a fixed-term contract at the end of its term. Since Ofgem's rule change in October 2022, EDF can't require a microbusiness customer to notify it in advance before switching away when a fixed deal ends. Evergreen and rollover tariffs are the exception and still require 30 days' notice.
If you do nothing at contract end, you're moved onto Extended Supply rates rather than losing supply. This protects continuity but rarely offers the best price, so it's worth actioning a renewal or switch decision before your end date rather than after it.
If you're moving premises, notify EDF as early as possible. If you don't arrange continued supply at your new address, you may default onto a Deemed contract rather than a fixed rate.
Leaving EDF to Switch Suppliers
Leaving EDF works the same way as leaving any UK business energy supplier:
Get quotes from other suppliers before your current contract ends, ideally starting the comparison around 90 days out.
Check your exit fee position against your specific contract terms, and time the switch to your renewal window wherever possible.
Confirm the switch with your new supplier, who will typically handle notifying EDF on your behalf.
Give a final meter reading on your last day of supply for an accurate closing bill.
Settle any outstanding balance with EDF to avoid delays in completing the switch.
Why Compare Before You Commit?
EDF is a genuinely distinctive supplier in one respect: it's one of the only Big Six names that generates a large share of what it sells, and that shows up in a fuel mix that's harder for a pure reseller to match. But its independent service scores are currently weaker than several of its rivals, and its pricing isn't consistently the cheapest by most broker comparisons either. Rates depend on your postcode, usage band, meter type and contract length, all of which shift the answer from one business to the next.
That's exactly what comparing properly solves. Tell us your postcode, estimated usage and current contract end date, and we'll compare live quotes across our panel of suppliers, EDF included, rather than asking you to chase individual quotes yourself.
EDF Business Energy FAQs
Is EDF good for business energy?
Yes. But it depends on what you're optimising for. EDF is a solid choice if a longer fixed term and a genuinely nuclear-heavy, low fossil fuel supply matter most to you. If customer service quality is your priority, independent data from Citizens Advice and Which? both place EDF below the Big Six average as of early and mid-2026.
Is EDF part of the Big Six?
Yes. EDF is one of only two suppliers, alongside British Gas, that have held its Big Six place continuously since the term was first used, and it remains one of the six largest suppliers by market share under the current 2026 definition.
How do I get a business energy quote from EDF?
You can request a quote directly through EDF's website using your postcode and estimated annual consumption, or compare it alongside other suppliers using a service like BusinessComparison to see how it stacks up before you commit.
Does EDF charge exit fees for business customers?
Yes, on fixed-term contracts, though the exact amount is set out in your individual agreement rather than published as a flat fee. Freedom variable and Freedom Advanced tariffs carry no exit fees.
Is there a cooling-off period on EDF business contracts?
No. Business energy contracts, unlike domestic ones, don't come with a statutory cooling-off period, so it's worth checking terms carefully before signing.
What happens if I don't renew my EDF business contract?
You're typically moved onto EDF's Extended Supply rate rather than losing supply. If you're moving into premises already supplied by EDF without arranging a new agreement, you may instead default onto a Deemed contract, which is rarely the cheapest option available.
Does EDF supply business gas?
Yes, on the same fixed contract lengths as electricity, including a Fixed Renewable Tariff option for green electricity, though EDF's gas-specific renewable options are less developed than its electricity range.
Is EDF's business electricity actually renewable?
Not by default. EDF's standard Fixed for Business tariff blends nuclear, gas and a small share of renewables. For a fully renewable, REGO-backed supply, small businesses need to specifically choose the Fixed Renewable Tariff rather than assuming the standard product carries the same credentials.
Our Verdict: Should You Switch?
Best for: businesses that want price certainty for longer than the market standard, a fuel mix genuinely backed by nuclear generation rather than purchased certificates alone, and a named small business team rather than a purely self-service product, particularly if a £5,000 sustainability grant or free EV charger through the FSB partnership would be useful.
Think twice if: customer service track record ranks high on your list of priorities. Two of the most rigorous independent measures available, Citizens Advice and Which?, both currently place EDF below the Big Six average, and it isn't recognised as a top performer by either.
EDF's position in the market is unusual: it's a retailer built on top of a real generation business, and that shows up in a fuel mix that's harder for a pure reseller to match, plus contract terms that run longer than most competitors offer. But generation heritage and a long fix aren't the same as being the best-reviewed or the cheapest, and on the data currently available, EDF sits in a more mixed position than its scale might suggest.
The right move is the same one we'd recommend before signing with any supplier: compare your actual quote against the rest of the market, weigh the service data against your own priorities, and don't let a familiar name or a strong brand story substitute for checking the numbers.
