Is EDF Flextras worth joining? A member from launch week

Affiliate disclosure: this post contains an EDF referral link. If you use it, EDF pays each of us £50 in bill credit. During its September boost it paid me £100 and you £75, which the section below covers. The boost is not why EDF is on this site: the tariff arithmetic that put it here is on the EDF referral page and predates Flextras by five weeks.

EDF launched Flextras, its first loyalty scheme, on 7 September 2026. I joined on the 10th and activated the free tastecard the same day, on the electricity supply I moved to EDF in July 2026.

The timing is the useful part. I am the person who lost Octoplus. My electricity was with Octopus until July, Octoplus needs an Octopus electricity supply on a half-hourly smart meter, and the day my electricity left, the rewards left with it. Seven weeks later my new supplier launched its own version. This post is what the replacement actually contains, priced against my own usage rather than against the headline.

The verdict, once: join Flextras, because it costs nothing and the tastecard is worth about £48. Ignore the free electricity, which is worth about £19 a year at my usage in the best case and needs a real behaviour change to earn at all. That is the whole case. EDF announced a referral boost to members in the same week and this post originally treated it as a membership perk; it is not one, and the correction is below (opens in new tab).

What Flextras is, and what it asks of you

Free, and app-only. EDF's terms ask that you are 18 or over, live in England, Scotland or Wales, are a current domestic gas or electricity customer, have an email address registered to your EDF account, and have downloaded the EDF app. Business customers are out.

Joining took me about a minute inside the app: accept the terms and it is done. There is no web route, which matters more than it sounds, because it means every benefit below is redeemed on a phone.

What arrives with membership:

• A 12-month tastecard, applied on sign-up
• Four free electricity hours as a welcome gift, added once a smart meter is sending half-hourly readings and expiring 12 months after they land
• Access to Weekend Saver, which is a separate opt-in, or Power Perks if you are on a smart time-of-use tariff
• Nothing extra on refer-a-friend: EDF announced its September boost to members, but the offer was open to every EDF customer, and the section below sets that straight

The four welcome hours arrived on my account but are not usable until 1 October, and Weekend Saver, which I opted into separately, starts for me on 5 October. So the free-electricity half of this review is arithmetic on published rates rather than a measured saving. I have said which is which throughout, and I will come back with the measured figure once I have burned the four hours.

The tastecard is the benefit that survives contact with the small print

Two things usually make a "free 12-month membership" worthless: it takes your card details, and it auto-renews into a paid subscription you forget about. Neither is true here. EDF's tastecard signup asked for my name and my email address, took no payment method, and does not auto-renew at the end of the 12 months. It is the same tastecard product a paying member gets, not a cut-down version.

What that is worth depends on which price you compare it to. tastecard's own cheapest advertised membership is £3.99 a month, so 12 months of it is £47.88. That is the honest number for a benefit EDF attaches no value to at all.

tastecard's own pitch is a lot bigger, and it is worth reading the way you would read any savings claim. The site advertises "over £600 a year", built from five figures: £222 at restaurants, £246 on coffee, £64 on days out, £62 on pizza delivery and £54 at the cinema. Those are the savings, not the spending. At the rates published beside them, 25% off restaurants, coffee and cinema and 50% off pizza delivery, realising £584 of that £600 means spending roughly £2,200 a year in four categories. Most households do not, which is why a £47.88 membership is the number I would plan around and £600 is the number I would ignore.

The offer itself is 2 for 1 or 25% off at "thousands of restaurants", 25% off at 350 or more cinemas, 25% off barista-made drinks, and 2 for 1 or 50% off delivery at Domino's, Papa Johns and Pizza Hut. I have activated mine and not yet used it, so I cannot tell you how the bookings behave in my area. What I can tell you is that nothing is riding on it: there is no card on file to cancel.

What a free electricity hour is actually worth

This is where the headline and the arithmetic separate, and it is most of why this sits at 4.3 rather than higher.

My electricity is 2,095 kWh a year in Region H (Southern) at 26.42p per kWh, the Ofgem cap rate my Simply Tracker tariff is priced in line with. Spread evenly, that is 0.239 kWh an hour, so an average hour of my electricity costs 6.3p.

Run that through what Flextras gives you:

And £18.96 is a ceiling, not an estimate, for two reasons. It assumes you qualify every single month. It also assumes your free hours are average hours, and they cannot be: Weekend Saver hours are redeemed in slots between 12am and 3pm at weekends, which for most homes is the cheapest stretch of the week. The scheme pays you in the hours you use least.

There is a way to beat that figure, and it is the only reason to take the free hours seriously. The value of a free hour is not what you would have used anyway, it is what you deliberately move into it. Put a wash, a dry and a dishwasher cycle inside a free Saturday morning hour and it is worth several times an average hour. That works. It is also a chore rota, not a reward, and it is worth saying plainly that the ceiling on the whole exercise is still under £20 a year at my usage.

Weekend Saver's qualifying bar is set below flat consumption

The 25 hours are conditional, and the condition is the most interesting number EDF has published. From EDF's own page: "Get 25 hours of free electricity a month when you use less than 9% of your weekday electricity between 4 to 7pm."

Check that against a clock. The 4 to 7pm window is three hours out of every 24, and across Monday to Friday that is 15 hours out of 120. A household that used electricity perfectly evenly, hour by hour, would put 12.5% of its weekday usage in that window and would fail the test. To pass you have to sit more than a quarter below flat, in the three hours of the day when most homes are cooking, drying and putting the lights on.

That is not a trick, and EDF is not hiding it: the whole point of the scheme is to shift demand off the national evening peak, which is exactly what Octopus Saving Sessions target too. But it does mean the honest description of Weekend Saver is a demand-shifting programme with a reward attached, not a loyalty perk you receive for being a customer. If your evenings are already quiet, you qualify without noticing. If they are not, £18.96 a year is the prize for rearranging them.

Weekend Saver also needs a compatible smart meter sending half-hourly readings, an eligible tariff (time-of-use tariffs are excluded, which is what Power Perks exists for instead), and the app. My meter came across from Octopus in the July switch with nothing to fix, and it reads half-hourly, so I cleared those without doing anything.

The referral boost was real, and it was not a Flextras benefit

Between 14 September and 6 October 2026, EDF paid £100 to the referrer and £75 to the friend, against a standard scheme that pays £50 to each side, which is what it pays again now. The friend had to start their switch inside the window.

When this post went up it said that boost was open to Flextras members only, and that this was the real answer to why anyone should join the scheme this month. That was wrong, and the correction is worth spelling out because it changes what Flextras is for. EDF announced the boost on 10 September in an email to members and on its X account (opens in new tab), at a point when its public refer-a-friend page (opens in new tab) still advertised £50 to each side and named no window, so the email was the only source and it read like a membership perk. The public page then caught up: it stated the £75 and the £100 and the dates, and mentioned Flextras nowhere. Neither do EDF's refer-a-friend terms. EDF's own Flextras page (opens in new tab) listed the boost among its reasons to join, but worded it the same way, "every time you successfully refer a friend to EDF using your referral link", with no membership condition.

So the boost was open to any EDF customer with a referral link, membership or not, and the case for joining Flextras rests on the tastecard rather than on this.

The second is that the boost was not symmetrical, and I was on the better side of it. £100 to me and £75 to you was the first offer on this site where both halves paid cash and the referrer's was the larger. Incard pays me a bigger number, £250, but pays you in boosted cashback rather than money, so nothing there was comparable side by side. That does not change what I think of EDF's tariff, which I wrote up in August and which is unflattering in places: Simply Tracker costs me £70.13 a year more than the Octopus fix it replaced.

Set against everything above, the scale is still what stands out. Even the standard £50 is more than two and a half years of Weekend Saver at my usage, in a single switch. That comparison survives the boost ending: it says something about how little the free electricity is worth rather than something about what membership buys you.

Flextras against the Octoplus it replaced for me

I have run both, seven weeks apart, on the same house and the same meter, and my Octoplus points ledger puts a number on the one I left: from joining in October 2023 to my electricity leaving in July 2026, the spin, Saving Sessions and a few one-off awards paid me £9.90, under £4 a year. The 12-month tastecard alone, at £47.88, is worth nearly five times that whole £9.90. Here is what each one asks of you:

The structural difference that matters: Octoplus paid in several small streams, one of which (the monthly Octopoints spin) required nothing of you, and Flextras pays in one large conditional stream plus one unconditional non-energy perk. If you want a loyalty scheme that pays you for existing, the tastecard is Flextras's only such benefit and it lands once. Everything else is earned.

Should you join?

Yes, if you are already an EDF customer, because it is free and the tastecard is worth £47.88 against nothing. That is the whole case and it is a good one.

No, if you are choosing a supplier and Flextras is on the scales. At my usage the free electricity tops out under £20 a year, and a £20 difference in unit rates or standing charge will swamp it. Pick the tariff on the tariff, which is what my EDF review does. The EDF referral page has the arithmetic that decides that, including the case against Simply Tracker, and the energy refer-a-friend league table has what every other UK supplier pays.

I will update this post with a measured figure once the four welcome hours are spent after 1 October, and again once Weekend Saver has run a full month from 5 October. Both are arithmetic today, and both should be measurements.

Frequently asked questions

How much is a Flextras free electricity hour actually worth?

At my usage, 6.3p. My electricity is 2,095 kWh a year at 26.42p per kWh, which is 0.239 kWh in an average hour. Weekend Saver's maximum of 25 hours a month is therefore £1.58 a month, or £18.96 a year, and that figure is a ceiling: it assumes you qualify every month, and it assumes an average hour, when the redeemable slots run between 12am and 3pm at weekends. Run the same sum on your own annual kWh: divide by 8,760, multiply by your unit rate. The hours are worth more than that only if you deliberately move a wash or a dishwasher cycle into them.

Does the free EDF tastecard need card details or auto-renew?

No to both. Signing up asked for my name and my email address only, took no payment method, and the 12 months do not roll into a paid subscription. That is unusual enough to be the main reason the tastecard is the strongest thing in Flextras: there is nothing to cancel and nothing to forget. It is the full tastecard product rather than a cut-down version, and tastecard's own cheapest advertised membership is £3.99 a month, so 12 months is £47.88.

Is EDF Flextras better than Octopus Octoplus?

On what each one pays, yes. My Octoplus points ledger has the spin, Saving Sessions and a few one-off awards paying me £9.90 from October 2023 to July 2026, when my electricity moved to EDF, and the Flextras tastecard alone is worth £47.88. They are built differently, and I have run both on the same house seven weeks apart. Flextras gives one unconditional non-energy benefit, the tastecard, plus a large conditional stream of free electricity you have to earn by shifting demand off the 4 to 7pm weekday peak. Octoplus paid in several smaller streams, one of which asked nothing of you at all. The entry bar differs too: Octoplus needed Octopus electricity on a half-hourly smart meter paid by direct debit, and Flextras needs EDF gas or electricity plus the app.

Can I get Flextras without a smart meter?

Yes for the membership and the tastecard. No for the four welcome hours, which EDF's Flextras terms add only once a smart meter is sending half-hourly readings, and no for Weekend Saver, which needs the same meter and a tariff that is not time-of-use. Mine came across from Octopus in the July 2026 switch with nothing to fix and reads half-hourly, so I cleared both without doing anything.