Octopus Energy Solar Panels Review 2026: Costs, Packages & Is It Worth It?
Octopus is one of the biggest energy suppliers in the country, and these days it sells solar installs too, through its Octopus Energy Generation arm and a network of partner fitters. Given how many people are already on an Octopus tariff, the move into solar got a lot of attention. The question is whether the panels are actually worth buying from them.
Octopus starts its pricing at £6,163, which is their own published figure for a tiny 2-panel array with no battery. A more realistic family-sized job with a battery comes in around £8,123 to £9,691 for 8 panels and 5kWh of storage, again from Octopus's own quotes. Everything is MCS-certified and uses 450W all-black panels with a 30-year power warranty. The catch is that the same kit often runs £500 to £1,500 less through a local installer.
Quick Answer
Octopus solar starts at £6,163 (their own price for a bare 2-panel system), and a typical 8-panel setup with a 5kWh battery runs £8,123 to £9,691. The real draw is pairing solar with the Intelligent Octopus Go and Flux tariffs. But you can usually get the same 450W all-black panels for £500 to £1,500 less from an independent MCS installer and still move onto an Octopus tariff afterwards.
Last updated June 2026
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
What is Octopus Energy’s solar offering?
Octopus Energy entered the solar installation market through Octopus Energy Generation, a sister company within the Octopus Energy Group. Rather than employing its own installation teams across the UK, Octopus works with a network of vetted, MCS-certified partner installers who carry out the actual installation work. Octopus handles the quote process, customer service, and integrates the system with its energy tariffs.
“Energy suppliers moving into solar installation can offer a convenient one-stop-shop experience, but homeowners should always compare quotes from multiple sources to ensure they're getting the best value.”
Company
Part of Octopus Energy Group, one of the UK’s largest energy suppliers with over 7 million customers. Founded in 2015 and headquartered in London.
Solar Products
Solar packages in the 3kW to 5kW range, hybrid inverters, optional battery add-ons, and smart export through the Octopus SEG tariff. Panels come from the major manufacturers.
The tariff lock-in payoff
An Octopus install is pre-configured to work with Intelligent Octopus Go and the rest of the Octopus tariff range. The overnight rate (typically 7p/kWh) lets you charge a battery off-peak and discharge into evening peak, which a generic installer can match but rarely sets up by default.
How Octopus Energy solar works
- You request a quote through the Octopus Energy website or app
- Octopus provides a remote survey and system design based on your roof and usage
- An MCS-certified partner installer carries out the installation
- Your system is registered for the Smart Export Guarantee (SEG) via Octopus
- You can switch to Intelligent Octopus Go or Octopus Flux for smart tariff integration
- Monitoring is available through the Octopus app and your inverter’s own app
Octopus solar panel packages & pricing (2026)
The figures below are taken from Octopus Energy’s own published solar pricing (October 2025 prices) plus typical battery add-on costs. Octopus quotes per system rather than per kW, and your actual quote depends on roof complexity, panel count, and battery choice.
| Package | System | Cost (Octopus published) | Battery |
|---|---|---|---|
| Entry system | 2 panels (~0.9kW) | From £6,163 | No battery |
| Family system (essential battery) | 8 panels (~3.6kW) + 5kWh | £8,123 | Essential battery |
| Family system (smart battery) | 8 panels (~3.6kW) + 5kWh | £9,691 | Smart battery |
| Larger home + storage | 12–14 panels + 9–13kWh | £11,000–£14,000 (est.) | Powerwall 3 / GivEnergy |
Octopus charges a £200 refundable deposit to start, then a £1,000 non-refundable deposit when you sign the installation agreement. Source: Octopus Energy solar pricing page (October 2025).
0% VAT on solar panel installations
All domestic solar panel installations in the UK qualify for 0% VAT until March 2027. This applies to Octopus Energy solar packages and includes battery storage when installed at the same time. That's worth roughly £1,000 to £1,500 against the old 20% VAT rate. The prices above already have it baked in.
How Octopus pricing compares to the market
Octopus prices sit roughly around the UK average, but they can run £500 to £1,500 over the cheapest local firms. You're partly paying for the convenience of a big energy company, the customer service behind it, and the tariff integration. As ever, get three quotes before you sign anything.
What’s included with Octopus solar panels?
An Octopus install gives you the full kit to start generating your own power. Here's what's normally in the box.
Solar Panels
Octopus fits 450W all-black monocrystalline panels (roughly 1.7m x 1.1m) with a 25-year product warranty and a 30-year power output warranty. The all-black finish looks tidy on the roof, but you get little say over the exact panel brand.
Inverter & Battery
Systems use a hybrid inverter or microinverters (Enphase), with battery options including the Tesla Powerwall 3 (13.5kWh), GivEnergy, and SolarEdge. Hybrid setups let you add storage later if you don’t buy a battery upfront.
MCS-Certified Installation
All installations are carried out by MCS-certified partner installers. This is essential for eligibility for the Smart Export Guarantee and ensures your system meets UK building regulations and electrical standards.
Monitoring & SEG Payments
Your system connects to a monitoring app so you can track generation and usage in real time. Octopus also offers its own SEG tariff, currently one of the better export rates in the UK, paying you for electricity you send back to the grid.
Warranty coverage
- Solar panels: 25-year product warranty plus a 30-year power output warranty on Octopus’s 450W panels
- Inverter: 10 to 12 years from the manufacturer, depending on the brand
- Battery (if included): 10 to 12 years, with a capacity retention guarantee
- Workmanship: covered by the partner installer, usually 5 to 10 years
Intelligent Octopus Go: the smart tariff advantage
One of the strongest reasons to consider Octopus Energy for solar is access to the Intelligent Octopus Go tariff. This is a time-of-use tariff that offers significantly cheaper electricity during off-peak hours, perfect for charging a solar battery overnight.
How it works
Intelligent Octopus Go gives you a cheap overnight window, usually somewhere around 7p to 10p per kWh between 23:30 and 05:30, versus a daytime rate nearer 24p to 30p. Pair that with a battery and you can fill up cheaply overnight, run on solar through the day, and almost never touch the peak rate.
Potential savings
Put solar, a battery and Intelligent Octopus Go together and you can knock another £200 to £400 a year off your bill on top of what the panels already save. All in, £600 to £1,000 a year is a realistic target, sometimes more.
“Time-of-use tariffs like Intelligent Octopus Go are genuinely transformative for solar and battery owners. The combination of free daytime solar, cheap overnight grid power, and export payments can cut household electricity costs by 60–80%.”
You don’t need Octopus solar to get Intelligent Go
You do not need to buy your solar panels from Octopus to access the Intelligent Octopus Go tariff. Any solar and battery system with a compatible smart meter will work. You simply need to be an Octopus Energy customer. So if a local installer offers a better price, you can still benefit from the Octopus tariff.
Octopus solar tariffs and export rates explained
The real reason most people look at Octopus is the tariff lineup, not the panels. Octopus runs both import tariffs (what you pay for grid electricity) and export tariffs (what Octopus pays you for solar you send back). You can use these tariffs with any MCS-certified solar system, not just one Octopus installed. Here is how the main options compare.
Export tariffs (what Octopus pays you)
| Export tariff | Rate | Best for |
|---|---|---|
| Outgoing Octopus (fixed) | 12p/kWh flat | Simple, predictable export income |
| Outgoing Agile | Half-hourly, tracks wholesale (uncapped) | Batteries that can time exports to price peaks |
| Intelligent Octopus Flux | Higher peak export (typically ~27–31p at peak) | Solar + battery owners who export at 4–7pm peak |
Import tariffs (what you pay for grid power)
| Import tariff | Off-peak / key rate | Best for |
|---|---|---|
| Intelligent Octopus Go | ~7p/kWh, 23:30–05:30 | Charging a battery (or EV) cheaply overnight |
| Octopus Flux | Cheap import overnight, high export at peak | Solar + battery, fully automated import/export |
| Agile Octopus | Half-hourly, tracks wholesale | Hands-on users who shift usage to cheap half-hours |
| Cosy Octopus | Cheaper heat-pump-friendly time blocks | Homes with a heat pump plus solar |
Key point: the tariffs are not exclusive to Octopus solar
Every tariff above is open to any Octopus Energy customer with a compatible smart meter, no matter who installed your panels. So the strongest argument for buying Octopus solar (the tariff integration) is something you can get anyway. Buy your system from whoever offers the best price, then switch your supply to Octopus for the tariff. For a deeper breakdown, see our guide to the best Octopus tariffs for solar, the full Octopus export rate review, or compare Octopus against every other supplier on our best SEG rates hub.
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What Octopus actually does well
The case for Octopus Solar comes down to tariffs, not panels. Octopus has built the most useful smart-tariff lineup in the UK: Intelligent Octopus Go for cheap overnight charging, Flux for high-rate peak export, and Agile for half-hourly arbitrage. If you already trust the brand and you want everything (import, export, generation, battery scheduling) showing up in one app and one bill, that's a real benefit and it's the reason most buyers seriously consider them.
All installers in their network are MCS-certified, the monitoring works, and SEG export payments arrive on time. Octopus has also run interest-free finance promotions that made the package competitive on total cost of ownership, even when the headline price was higher than a local installer. Worth checking whether one is live when you quote.
Where the value falls down
On headline price, Octopus is usually £500 to £1,500 more than the cheapest local MCS installer for the same kWp. The install itself is subcontracted to a partner installer in your region, which means quality and lead time depend on who Octopus has signed up locally, not on Octopus Energy directly. If your area's partner is good, the experience is fine. If they're overbooked, you wait.
Panel and inverter choice is restricted to their approved range, so if you want full-black Aiko or a specific FoxESS hybrid inverter you're out of luck. And the single most important thing to know: you do not need to buy Octopus solar to get the tariffs. Any MCS-certified system with a compatible smart meter qualifies for Intelligent Octopus Go, Flux, and Agile. So the tariff argument, the main reason most people consider Octopus Solar, isn't actually a reason to buy from them.
Short version: Octopus Solar is a fine product, but the smart-tariff lock-in case mostly doesn't hold. Get a local MCS quote, get an Octopus quote, and if the local quote is £1,000+ cheaper, take it and sign up to Octopus electricity separately. You get the same tariffs either way.
Octopus vs other energy company solar offerings
Octopus is far from the only energy supplier selling solar these days. Here's how it stacks up against the other big UK names that have moved into the market.
| Provider | Typical 4kW Cost | Battery Option | Smart Tariff | Key Difference |
|---|---|---|---|---|
| Octopus Energy | £6,500–£8,000 | Yes | Intelligent Go, Flux | Best smart tariff integration |
| British Gas | £6,000–£9,000 | Yes | PeakSave | Largest installer network |
| E.ON Next | £5,500–£8,500 | Yes | Next Drive | 0% finance options |
| ScottishPower | £5,500–£8,000 | Yes | Limited | Bundled with smart home kit |
| Independent installer | £4,500–£7,000 | Yes | Any (your choice) | Best price, most flexibility |
Octopus vs British Gas Solar
British Gas tends to be the most expensive option but has the widest installation coverage. Octopus generally offers better smart tariff integration and more competitive export rates. Both use subcontractor models. If you value the cheapest ongoing running costs, Octopus’s tariff advantages give it the edge.
Octopus vs independent installers
Independent MCS-certified installers typically offer the best prices, more choice over equipment, and a more personalised service. You can still switch to an Octopus tariff afterwards. The trade-off is that you need to vet the installer yourself and manage the process more actively.
Are Octopus Energy solar panels actually worth it? Independent verdict
For the right household Octopus solar stacks up fine, but it's rarely the cheapest way in and almost never the only sensible one. The independent voices people actually trust on solar, Which?, MoneySavingExpert, Citizens Advice, the Energy Saving Trust, keep landing on the same three points, and they all bear directly on the Octopus offer.
Three things independent experts agree on before buying branded solar
- Always get three quotes. A single quote from any supplier (energy company, national brand, or local installer) is not enough to know if the price is fair. Take the Octopus quote, then compare it against two independent MCS-certified installers in your county. In 2026 Octopus often lands around £800 to £1,500 above what a local firm will quote for the same kit.
- Check the MCS certificate, not the brand. The warranty and consumer protection that matter come from the MCS certificate held by the installer, not the company that sold you the package. Octopus subcontracts installations to partner firms. Ask which firm will actually be on your roof, and verify their current MCS status on the MCS contractor directory.
- Smart Export Guarantee rates vary, and you don’t need to buy from Octopus to use them. Octopus runs one of the better-known SEG tariffs (Octopus Outgoing), but any MCS-certified solar installation can sign up for it. You can buy your panels from a local installer and still sell your export to Octopus on the same tariff.
In short: the Octopus offer is convenient and well-packaged, not uniquely cheap. If convenience is worth a four-figure premium to you, it’s a defensible buy. If it isn’t, you can replicate every meaningful part of the deal (MCS install, export tariff, monitoring) by going direct.
What does Martin Lewis say about Octopus solar panels?
Martin Lewis and his MoneySavingExpert (MSE) team have not published a standalone review of Octopus Energy solar panels specifically. What they consistently advise on solar is the same principle that applies to any provider: solar can be a strong investment for the right home, but the deciding factor is getting several quotes rather than signing with the first or best-known name.
Applied to Octopus, the MSE-style takeaways are straightforward:
- Get at least three quotes. Treat Octopus as one of three, alongside two independent MCS-certified installers, and compare like for like on panel wattage, inverter and battery size.
- A brand name is not a discount. Octopus fits the same tier-1 panels any installer can get, so a familiar logo doesn't buy you a better-value system.
- Keep the panels and the tariff separate. The Intelligent Octopus Go and Flux tariffs are open to any Octopus customer, so you don't have to buy Octopus panels to get them.
- Run the payback maths on your own usage. MSE's point is always to model savings against your actual bills, not the headline numbers, before you commit.
In short, MoneySavingExpert does not endorse Octopus (or any single provider) over others. The money-saving move is to put an Octopus quote head-to-head with local installers, then choose your energy tariff separately. For the tariff side, see our guide to the best Octopus tariffs for solar.
Should you get Octopus Energy solar panels?
Octopus Energy is a reputable option for solar panel installation, particularly if you’re already an Octopus customer and want the convenience of managing everything through one provider. The Intelligent Octopus Go tariff is genuinely one of the best smart tariffs for solar and battery owners in the UK.
However, we’d recommend getting at least three quotes, one from Octopus and two from independent, local MCS-certified installers, before making a decision. In many cases, a local installer can offer the same (or better) equipment at a lower price, and you can still switch to Octopus for your energy tariff and export payments afterwards.
The key question is whether the convenience premium is worth it for you. If you value a simple, end-to-end experience from a well-known brand, Octopus is a solid choice. If you want the absolute best price and maximum control over your system specification, compare quotes from local installers.
Our recommendation
- Best for: Existing Octopus customers who value convenience, brand trust, and tariff integration that works out of the box
- Consider alternatives if: You want the lowest price, specific panel/inverter brands, or prefer working with a local specialist
- Either way: Switch to Intelligent Octopus Go after installation, it works with any solar system, not just Octopus-installed ones
Octopus Energy Solar Panels FAQ
Are Octopus solar panels any good?
Octopus Energy solar panels are a solid option backed by a reputable energy company. The panels themselves are sourced from well-known tier-1 manufacturers (such as JA Solar or Jinko), and all installations are MCS-certified. The main advantage is integration with Octopus's smart tariffs. However, "Octopus solar panels" are not a unique product, they use the same panels available to any installer. You may get a better deal by comparing quotes from independent installers.
How much do Octopus solar panels cost?
Octopus publishes a starting price of £6,163 for a small 2-panel system with no battery (October 2025 prices). A typical 8-panel system with a 5kWh battery costs £8,123 with the essential battery or £9,691 with the smart one, per Octopus's own quotes. Larger homes with bigger batteries can reach £11,000 to £14,000. All prices include 0% VAT. The same 450W panels are often £500 to £1,500 cheaper from a local MCS-certified installer.
What does Martin Lewis say about Octopus solar panels?
Martin Lewis and MoneySavingExpert generally advise that solar panels can be a good investment for UK homeowners, but stress the importance of getting multiple quotes rather than going with a single provider. The MSE advice is to compare at least three quotes from MCS-certified installers, check your roof suitability, and factor in realistic savings based on your actual usage. Octopus Energy is mentioned as a reputable option, but MSE does not endorse any single provider over others.
Can I get Octopus Intelligent Go without buying Octopus solar panels?
Yes. The Intelligent Octopus Go tariff is available to any Octopus Energy customer with a compatible smart meter. You do not need to buy your solar panels from Octopus. You can have any MCS-certified installer fit your system and then switch your energy supply to Octopus to access the Intelligent Go rate. This is an important point, the tariff benefit alone is not a reason to buy from Octopus rather than a cheaper installer.
How long does Octopus Energy solar installation take?
From first enquiry to a finished install, reckon on four to eight weeks with Octopus. The fitting itself is usually a one-day job, or two days if a battery is going in as well. It can drag a bit depending on where you are, how awkward the roof is, and how busy things are. Spring and summer tend to be the slowest for waiting times.
Does Octopus Energy offer solar panel financing?
Octopus has run various finance deals on solar, including interest-free plans spread over 12 to 24 months. What's on offer changes, so check directly for current terms. One word of caution: always weigh the total cost of a financed Octopus job against paying a local installer outright, because spreading the payments can quietly hide a higher overall price.
What warranty do you get with Octopus solar panels?
An Octopus install comes with a 25-year performance warranty on the panels from the manufacturer, 10 to 12 years on the inverter, and a workmanship warranty from the partner installer, usually 5 to 10 years. Any battery carries its own 10 to 12 year cover. None of this is special to Octopus, it's pretty much the industry standard.
Is it better to go with Octopus or a local solar installer?
It comes down to what you care about. Octopus gives you convenience, a name you trust, and tariff integration. A local MCS installer usually gives you a lower price (often £500 to £1,500 less for the same system), more say over the kit, and a more personal service. Our advice is to put an Octopus quote next to two or three local ones and compare like for like. And remember, you can get onto the Octopus tariffs whoever ends up fitting your panels.
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Sources
- Octopus Energy: Solar Panels
- Octopus Energy: Intelligent Octopus Go
- MCS: Microgeneration Certification Scheme
- Energy Saving Trust: Solar Panels Guide
- Ofgem: Smart Export Guarantee (SEG)
- HMRC: 0% VAT on Energy-Saving Materials
Last updated: June 2026
John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He researches every battery and inverter brand against manufacturer datasheets, MCS and Ofgem data, and feedback from the MCS-certified installers in our directory before publishing.
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