Octopus Energy Review: 2 Years as a Real Customer (August 2026)

Quick answer: Octopus Energy is worth switching to for most households. After about two years as a paying customer, my billing has been accurate, the app is the best I have used for a utility, and both support contacts were resolved in one interaction. They are not automatically the cheapest supplier in every region every quarter, so check the price for your own postcode first. If you do switch, use my referral link and we both get £50 credit.

I am not a journalist who trialled an account for a fortnight. I am a customer who pays a real direct debit every month, and I have referred enough people that I hear back when something goes wrong for them. This review is what I have seen, plus published data where my own experience is not enough evidence.

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Octopus Energy at a Glance

My own position for transparency: residential customer, Flexible tariff, smart meter, home in Essex. I run Glide Marketing from that home office on the same residential tariff, which is the normal arrangement for most home-based businesses. I am not an Octopus business energy customer, so nothing in this review is a first-hand account of their business service.

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Billing: The Part That Matters Most

The reason most people leave an energy supplier is not price. It is a bill that makes no sense.

In two years my Octopus bills have matched my usage. The direct debit has been adjusted twice, both times with notice and both times in the direction the usage data suggested. I have never had an estimated bill land on an account that has a working smart meter, which was a recurring problem with my previous supplier.

Two things make the difference here. The first is that meter readings flow automatically from the smart meter, so there is no gap for an estimate to fill. The second is that the account balance is visible daily rather than quarterly, so a direct debit that is drifting too low shows up as a growing debit balance months before it becomes a shock.

If you have been through a supplier that produced a £900 catch-up bill after a year of underestimating, that visibility is the whole argument.

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The App

The Octopus app is the best I have used for a utility, and it is not close.

With a smart meter you get daily usage broken down by day, a projected cost for the current month, your live credit balance, and meter submission if you need it. Tariff changes happen in the app without a phone call. Referral links live in the app too.

The practical effect is that energy stopped being a thing I found out about after the fact. If a cold week pushes usage up, I can see it that week rather than in a bill six weeks later.

It is worth being clear about the limits. Without a smart meter you lose the daily data and the app becomes a fairly ordinary account portal. Most of what people praise about the Octopus app depends on having a smart meter installed and communicating.

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Customer Service: What Happened When I Needed Them

I have contacted Octopus twice in two years. Once was a billing query and once was a smart meter question. Both were resolved in one interaction, without being transferred, and without having to re-explain the problem to a second person.

Two contacts is a small sample, so it is fair to test it against the published data rather than my luck. Octopus holds a 4.8 out of 5 Trustpilot score from over 837,000 reviews, which is the highest of any large UK supplier by a wide margin. In the Citizens Advice supplier table for January to March 2026 they scored 3.67 out of 5, near the top of the major suppliers. Ofgem's published complaints data has consistently placed them among the lowest complaint rates of the large suppliers.

The Citizens Advice figure is the one worth reading carefully. It is good, not perfect, and the gap between 3.67 and a hypothetical 5 is real. Reading through the negative reviews, a recurring theme is delays getting a final bill out of the customer's previous supplier, which is a problem Octopus inherits rather than causes. That is genuinely not their fault, but it still happens to you.

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Price: Are They Cheap?

Competitive, not automatically cheapest. That distinction matters and most reviews blur it.

The Flexible tariff has consistently priced below the Ofgem price cap rather than sitting at it, which is where a lot of legacy suppliers park their standard variable tariff. The Tracker tariff, which follows daily wholesale rates, averaged below the cap through 2026. Neither of those is a guarantee for your postcode.

Energy pricing in Great Britain is regional. Unit rates and standing charges differ by distribution area, which means a supplier that is the cheapest option in the South East may not be in the North West. A national "cheapest supplier" claim is a marketing line, not a fact about your bill.

So the honest instruction is boring: get a quote for your own postcode, compare it against your current unit rate and standing charge rather than against the headline cap, and decide from that. If you want the mechanics of doing that, my guide to switching to Octopus Energy covers the process step by step.

What Octopus does have that is not a pricing claim: no exit fees on the variable tariffs and no minimum term. If a cheaper option appears in six months, leaving costs you nothing. That is worth more than a few pounds of headline difference, because it removes the risk of picking wrong.

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The Tariffs, Briefly

You do not need a tariff dissertation to make this decision.

Flexible tracks the Ofgem price cap and requires no change in how you live. This is the right default and it is what I am on.

Tracker follows the daily wholesale rate. Cheaper on average through 2026, with more day-to-day variance. Suits people who will not panic at a high day.

Agile prices every half hour based on wholesale costs, occasionally going negative overnight. It needs a smart meter and it needs you to move heavy usage such as EV charging, dishwasher or washing machine into cheap windows. If you will not change your habits, it is not for you.

Go and the intelligent tariffs are built around EV charging and need compatible hardware.

Moving between tariffs inside Octopus is free and takes a few taps in the app, so the first choice is not a commitment.

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Green Credentials: Greenwashing Check

Octopus supplies 100% renewable electricity as standard across its tariffs, and it invests in its own generation rather than only buying certificates. On the electricity side, the claim holds up better than most.

Gas is where every UK supplier, Octopus included, has a weaker story. There is no supplier delivering 100% green gas at domestic scale, and green gas claims across the industry lean heavily on offsetting. If decarbonising your home is the goal, the honest answer is that the lever is reducing gas use, not choosing a supplier who says the right things about it.

I would rather say that plainly than let a green tariff badge do work it has not earned.

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What I Do Not Like

No supplier review is worth reading if it has no downside section.

• Smart meter dependency. The best parts of Octopus, meaning the daily data and the smart tariffs, need a working smart meter. Installation waits vary by region and can run to several weeks. If a smart tariff is your reason for switching, confirm the wait before you commit.
• They are not always the cheapest. They are consistently competitive, which is not the same claim. If you are optimising purely on unit rate every quarter, you will sometimes find a cheaper fixed deal elsewhere.
• The referral programme attracts noise. The scheme is genuine, but the search results for it are full of single-page sites promising £80 or £100 that are quietly splitting the £50. I wrote about that in my Octopus refer a friend guide because it costs people money.
• Scale changes things. Octopus is now the largest UK household supplier. The service quality has held up in my experience, but a company at 8 million customers is a different organisation from the one that built the early reputation, and that is worth watching rather than assuming.
• Final bill delays are common. Not an Octopus failure, but if you switch and your old supplier drags its feet on the closing bill, you will be chasing them, not Octopus.

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Who Should Not Switch

Three groups should hold off.

Anyone mid-fix with a real exit fee. Wait for the final 49 days of your contract, when most suppliers waive the charge, then switch.

Anyone who has not checked their own postcode. If you switch on the strength of a national review, including this one, you are guessing. Regional pricing is real. Check first.

Anyone who needs a smart tariff on day one. If the smart meter installation queue in your area is long, the tariff you switched for will not be available when you arrive.

Everyone else, in my view, will find this an upgrade on a legacy supplier's standard variable tariff.

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Octopus vs Other Suppliers

The comparison that flatters Octopus most is against a big legacy supplier's standard variable tariff, which is where a large number of UK households still sit through inertia. Against a keen fixed deal from a smaller supplier on price alone, the gap narrows and can reverse.

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The £50 Referral, Explained Straight

If this review is useful and you decide to switch, the referral costs you nothing and pays you £50.

Switch to Octopus Energy and get £50 credit

share.octopus.energy/ideal-spark-243

The mechanics:

• There is no code to type. The link carries the referral.
• Both sides get £50 on a home account. Business and charity accounts get £75 each.
• The credit is applied after your first direct debit clears, usually two to four weeks after your start date.
• Comparison sites do not carry the referral. If you switch through one, or go direct to Octopus, neither of us gets the credit.
• There is no cap on referrals and no minimum contract term on the variable tariffs.

I referred nine people in August 2026 and every credit landed. That is the main reason I write about this scheme rather than a dozen others: it pays reliably, both ways, and it does not require the person switching to give anything up.

For the full scheme mechanics, including what voids the credit, see my Octopus Energy refer a friend guide. For the referral code page itself, see my Octopus Energy referral code. Business customers should read the business referral guide, where the rate is £75 each way.

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Is Octopus Energy Safe?

Yes. Octopus is regulated by Ofgem and is a member of the Energy Ombudsman scheme, so you have a free escalation route if a complaint stalls.

On supply risk, the collapse of dozens of small suppliers in 2021 and 2022 made this a fair question. It does not apply here. Octopus passed 8 million UK customers in April 2026 and is now the largest household energy supplier in the country, serving roughly one in four households. It has also been the supplier Ofgem appointed to take on customers of failed suppliers, which is the opposite end of that risk.

Your supply itself is never at stake in a switch regardless of supplier. The same wires and pipes deliver your energy no matter who sends the bill.

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Frequently Asked Questions

Is Octopus Energy any good?

Yes, on the evidence of two years as a customer and the published data. Billing has been accurate, the app is the best I have used for a utility, and both times I contacted support the issue was resolved in one interaction. Octopus holds a 4.8 out of 5 Trustpilot score from over 837,000 reviews and 3.67 out of 5 in the Citizens Advice supplier table for January to March 2026.

Is Octopus Energy cheap?

Competitive rather than always cheapest. The Flexible tariff has consistently sat below the Ofgem price cap, and Tracker averaged below the cap through 2026. Energy pricing is regional, so get a quote for your own postcode before switching.

How long have you been with Octopus Energy?

About two years, on a residential Flexible tariff at my home in Essex. I also run my business from that home office on the same residential tariff.

Is Octopus Energy really 100% renewable?

Octopus supplies 100% renewable electricity as standard across its tariffs. Gas is a different matter, and no UK supplier delivers 100% green gas at scale. The electricity claim is genuine, the gas one is weak across the whole industry.

What is Octopus Energy customer service like?

Good, in my experience. Two contacts in two years, both resolved in a single interaction. Octopus consistently sits among the lowest complaint rates of the large suppliers in Ofgem's published data.

Is Octopus Energy safe?

Yes. Regulated by Ofgem, a member of the Energy Ombudsman scheme, and as of April 2026 the largest UK household supplier with over 8 million customers.

Who should not switch to Octopus Energy?

Anyone locked into a cheap fixed deal with a meaningful exit fee should wait for the final 49 days of the contract. Anyone chasing the single lowest unit rate in their region should compare properly first. Anyone who needs a smart tariff immediately should check the smart meter installation wait in their area.

What is the Octopus Energy app like?

The best I have used for a utility. Daily usage, projected monthly cost, credit balance and tariff switching in one place, provided you have a smart meter. Without one, it is a fairly ordinary account portal.

Which Octopus Energy tariff is best?

Flexible for most households, because it tracks the price cap and needs no behaviour change. Agile suits people who can shift heavy usage to cheap overnight periods. Tracker follows daily wholesale rates with more variance. Switching between them inside Octopus is free.

Does Octopus Energy charge exit fees?

Not on the variable tariffs, and there is no minimum term on those. Fixed tariffs carry their own terms, so check before signing up to one.

How much is the Octopus Energy referral bonus?

£50 for you and £50 for me on a home switch through my referral link. Business and charity accounts get £75 each way. The credit lands after your first direct debit clears, usually within two to four weeks.

Can I get the referral credit if I already switched?

Sometimes. Contact Octopus support and give them the referral link. They can often apply the credit retrospectively, so it is worth asking.

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The Verdict

Two years in, Octopus Energy has done the things I care about in an energy supplier: bills that match usage, an app that tells me what is happening, and support that fixes a problem in one go. The referral scheme pays reliably in both directions, which is rare enough to be worth saying.

What it is not is a guaranteed cheapest option for every postcode in every quarter. Anyone telling you otherwise is selling something. Check your own numbers, then switch if they stack up.

Switch to Octopus Energy and get £50 credit

Both of us get £50 once your first direct debit clears. Business and charity accounts get £75 each.

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More Energy and Money Guides

• How to switch to Octopus Energy, the step-by-step process and what happens with your old supplier.
• Octopus Energy referral code, the code page and full offer terms.
• Octopus Energy refer a friend, how the £50 mechanics work and what voids the credit.
• Octopus Energy business referral code, the £75 tier for business and charity accounts.
• Best cashback sites UK, other ways I cut household and business costs.

Mike McDonnell, Founder of Glide Marketing