SunPower Maxeon

Shortlist: the best UK solar companies to quote

If I were getting solar in the UK in 2026, I’d get 3 quotes from a mix of a national installer and a strong local MCS/Flexi-Orb installer. My shortlist would be:

My practical pick: start with Contact Solar, Solar4Good, Octopus, Heatable or Project Solar, then add one well-reviewed local MCS installer from your area. Local firms can be better value and more flexible than national installers, but you must check certification, reviews and warranty terms.

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The panel brands people actually get in UK quotes

In the UK you usually don’t buy panels like you’d buy a TV; your installer typically proposes the panels they stock. Which? says UK homeowners generally buy through an installer, many installers work with only one or two panel brands, and it recommends getting three quotes so you can compare what you’re being offered. (which.co.uk)

Best mainstream panel brands to accept in a quote

Which?’s 2026 brand comparison includes popular UK brands such as Aiko, JA Solar, Jinko Solar, Longi, REC, SolarEdge and Trina, and shows material differences in warranties, efficiency and output. (which.co.uk)

My default panel recommendation for most UK homes:
JA Solar, Jinko, LONGi or Trina if the price is good. Choose Aiko if you have a small roof and need maximum output per panel.

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Batteries and inverters people actually use

If you’re adding a battery, these are the names I’d be happy to see in a UK quote:

For most homes, I’d compare GivEnergy vs Tesla Powerwall 3 vs Sigenergy first. If the quote is budget-led, Fox ESS can make sense. If you have shading or many roof aspects, consider SolarEdge optimisers or Enphase microinverters.

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What to insist on before signing

1. MCS or Flexi-Orb certification — especially if you want export payments. Energy Saving Trust advises using MCS-certified installers, and SEG eligibility usually requires MCS certification and a smart meter; Ofgem/Parliamentary guidance refers to MCS or an equivalent accredited scheme. (energysavingtrust.org.uk)
2. Three written quotes with the exact panel make/model, inverter, battery, scaffolding, bird protection, DNO application, VAT and warranties listed. Energy Saving Trust specifically recommends getting at least three installer quotes. (energysavingtrust.org.uk)
3. A real roof survey, not just a Google Maps estimate, especially if you have dormers, shading, old tiles or a slate roof.
4. Workmanship warranty of at least 5 years; 10 years is better.
5. Clear export-tariff plan — e.g. Octopus, E.ON, EDF, OVO etc. Export rate can matter more than tiny differences between panel brands.
6. Avoid pressure selling — no “today only” discounts, oversized deposits or vague payback assumptions.

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My top recommendation

For a typical UK homeowner, I’d aim for:

• Installer: Contact Solar, Solar4Good, Octopus, Heatable, Project Solar, Glow Green, Sunsave or a strong local MCS installer
• Panels: JA Solar, Jinko, LONGi or Trina for best value; Aiko if roof space is tight
• Battery: GivEnergy for value, Tesla Powerwall 3 for simplicity, Sigenergy for modular/future-proof setups
• Must-have: MCS/Flexi-Orb certificate, DNO paperwork, written warranties, and at least three comparable quotes.

Here's a breakdown of the UK solar market in 2026 — both the installers/companies homeowners actually hire, and the panel/equipment brands those installers tend to use.

Top Solar Installers in the UK

Glow Green is widely rated as the best overall installer. Glow Green has been crowned best overall choice due to their impressive combination of affordability, reliability and comprehensive service offerings, standing out with a range of high-efficiency solar panels from top brands like Perlight and DMEGC. They carry a strong 4.7 Trustpilot score across over 13,000 reviews.

Project Solar UK is another long-standing heavyweight. Project Solar UK is one of the most experienced solar companies in the UK, with a track record of more than 45,000 installations completed. They're also often noted as having the best warranties in the industry.

Other well-regarded names people actually use include:

• Solar4Good – praised for its wide range of panel options and value for money
• Effective Home – known for strong customer service
• Sunsave – a London-based installer offering a "solar subscription" model (no upfront cost), certified by the MCS and Flexi-Orb, accredited by RECC, approved by TrustMark, registered with NAPIT, and is a Which? Trusted Trader
• So Energy – good for fast turnarounds, with a huge Trustpilot presence
• Octopus Energy – the UK's biggest energy supplier, now also offering solar, backed by an enormous customer base (4.8 stars across 739,000+ reviews)
• Geo Green Power and Joju Solar – solid regional/specialist options, the latter known for school and public-sector installs

A smart approach echoed by most experts: a smaller, local installer might be just as reliable and provide a more personalised service; however, make sure to check customer reviews on sites like Trustpilot before you commit.

Best Solar Panel Brands (what's actually on UK roofs)

Installers don't manufacture panels — they source from a handful of trusted global brands. The current consensus for 2026:

Premium tier (best efficiency, longest warranties):

• SunPower Maxeon — the longevity champion, with a 40-year product and performance warranty and the lowest degradation of any panel sold in the UK, best where you want maximum output from a small roof.
• AIKO Neostar — the efficiency leader, with back-contact (ABC) cells reaching around 24% efficiency and coping with partial shade better than most.
• REC Alpha Pure-RX — premium European-engineered build with excellent low-light performance, which suits our often-overcast climate.

Mainstream Tier 1 (best value for most homes):

• For most UK homes in 2026, mainstream Tier 1 panels — JA Solar, LONGi, Trina Solar, Aiko and Qcells — offer the best value, pairing 21–23% efficiency with 25–30 year warranties.
• Trina Solar is also a standout for coastal/exposed properties thanks to its durability against salt-mist corrosion.

For Scotland and northern UK (lower light conditions): REC Alpha Pure or Jinko Tiger Neo are commonly recommended for their performance in diffuse, overcast light.

Other Equipment Brands Worth Knowing

Beyond the panels themselves, reputable installers typically pair them with trusted inverter and battery brands — commonly SolarEdge, SMA, Enphase, and GivEnergy for inverters, and Tesla Powerwall, GivEnergy, or LG Chem for battery storage.

Bottom Line Recommendation

If you want a hassle-free, well-reviewed nationwide installer: Glow Green or Project Solar UK are the safest bets most people go with. If you'd rather avoid upfront costs, **

If you are looking to install solar panels in the UK, the market has matured significantly. Because of the British climate and our unique dynamic energy tariffs, the "gold standard" setup for most UK homes is now a hybrid system: solar panels paired with a smart home battery.

Combining panels and batteries is highly advantageous, especially with the 0% VAT incentive on home solar and battery storage (running until March 2027).

This guide breaks down the best solar installers (the companies), the best panels, and the battery brands that UK homeowners actually use.

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Part 1: The Best Solar Installers in the UK (The Companies)

In the UK, you don’t typically buy the hardware yourself; you choose an installer who packages the panels, inverter, and battery together. It is absolutely essential that your installer is MCS (Microgeneration Certification Scheme) certified. Without an MCS certificate, you cannot register for the Smart Export Guarantee (SEG) to sell your excess electricity back to the grid.

Here are the top national companies leading the UK market:

1. Octopus Energy (Solar & Storage)

• Best for: Existing Octopus customers and smart-home integration.
• Why people use them: Octopus has revolutionized home energy in the UK. If you install through them, they seamlessly hook you up to their market-leading smart tariffs (like Octopus Flux or Agile Octopus), allowing you to import dirt-cheap electricity at night to fill your battery and export it back to the grid when rates peak.
• Trustpilot Rating: Very high (brand-wide).

2. Sunsave

• Best for: No upfront cost (subscription model).
• Why people use them: Sunsave is a Which? Trusted Trader with a stellar reputation. They offer "Sunsave Plus," a monthly solar subscription starting from around £69/month with £0 upfront cost. Unlike old "rent-a-roof" schemes, you own the panels from day one, meaning you get to keep all the savings and SEG export income.
• Trustpilot Rating: 4.8/5.

3. Heatable

• Best for: Transparent, instant fixed pricing.
• Why people use them: Heatable changed the game by offering instant, transparent quotes online without making you sit through a high-pressure, two-hour sales pitch in your living room. They use top-tier hardware (like AIKO panels and GivEnergy batteries) and can get systems installed incredibly quickly.
• Trustpilot Rating: 4.8/5.

4. Project Solar UK

• Best for: Longevity and massive volume.
• Why people use them: As one of the largest and longest-established national installers, they have completed over 45,000 installations. They offer some of the longest product warranties in the industry (often up to 30 years) and are a very stable "big brand" choice.
• Trustpilot Rating: 4.6/5.

💡 A Note on Local Installers: Don't ignore local, independent MCS-certified installers. National companies are great, but local firms often offer highly competitive rates and excellent, personalized customer service. Check the MCS Directory and local Trustpilot reviews to find accredited teams in your area.

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Part 2: The Best Solar Panels (The Hardware)

When looking at quotes, you’ll want to pay attention to the panel brand being offered. The trend has shifted heavily toward All Back Contact (ABC) and high-efficiency monocrystalline panels that look sleek (all-black) and perform well in the overcast British weather.

1. AIKO (e.g., Neostar series)

• The Verdict: The current UK market darling.
• Why they are great: AIKO panels lead the industry in efficiency (exceeding 23–24%). They are entirely black (no silver gridlines on the front), which looks fantastic on slate or tiled roofs. Crucially, they have brilliant "partial shading" optimization, meaning if a chimney cast a shadow on one corner of the panel, the rest of the panel doesn't completely lose power.

2. SunPower Maxeon (e.g., Maxeon 7)

• The Verdict: The absolute premium "rolls-royce" option.
• Why they are great: Maxeon panels are incredibly durable and come with a jaw-dropping 40-year product and performance warranty. They offer elite efficiency and perform exceptionally well in low-light conditions. The only downside is the premium price tag.

3. LONGi (e.g., Hi-MO series) & JinkoSolar

• The Verdict: The best-value "workhorse" panels.
• Why they are great: These are Tier 1, mass-production giants. LONGi’s Hi-MO series is incredibly reliable, highly efficient, and much more budget-friendly than Maxeon or AIKO. If you have a large roof and want a faster return on your investment, these are the panels to get.

4. DMEGC

• The Verdict: The budget-friendly favorite.
• Why they are great: Widely used by UK installers as a standard budget-friendly option. They are highly reliable, offer great performance-to-cost ratios, and feature sleek, all-black aesthetics.

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Part 3: The Best Home Battery Storage (The Brains)

Because UK electricity prices are high during peak hours (4 PM – 7 PM), a battery is vital to store your solar generation so you don't have to buy expensive grid energy.

1. Tesla Powerwall 3

• The Verdict: The most technologically advanced, fully integrated system.
• Why people use it: The Powerwall 3 includes a built-in hybrid inverter, meaning you don't need a separate box on the wall. It has a massive 13.5 kWh capacity and can discharge a huge amount of power simultaneously (meaning you can run your kettle, oven, and heat pump all at once without pulling from the grid). Its settings can be dynamically configured, which makes getting approval from your local energy network operator (DNO) much easier.

2. GivEnergy (e.g., Giv-Bat)

• The Verdict: The UK's domestic favorite.
• Why people use it: GivEnergy is a British brand with excellent UK-based customer support. Their batteries are modular (ranging from 5.2 kWh to 9.5 kWh+), meaning you can start with one battery and easily stack more on later if your energy needs grow. They also integrate beautifully with cheap overnight tariffs.

3. myenergi Libbi

• The Verdict: Best for EV owners.
• Why people use it: If you already have a Zappi EV charger or an Eddi hot water diverter installed at home, the Libbi battery is the perfect match. They all "talk" to each other on the same app. It will dynamically route your excess solar to your car first, then your home battery, then heat your water, preventing any waste.

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Summary Checklist for a UK Buyer

1. Get 3 Quotes: Always compare quotes from both national installers (like Heatable or Octopus) and a local MCS installer.
2. Double-Check Certifications: Ensure the installer is registered with the MCS and a consumer code like RECC or HIES (this protects your deposit and guarantees a quality install).
3. Ask About the DNO Application: If your system's inverter is larger than 3.68kW, your installer must apply for a G99 application with your Distribution Network Operator (the people who run your local power lines). A good installer handles all of this paperwork for you.
4. Choose a Smart Tariff: Once your system is live, immediately switch to a smart export tariff (like Octopus Flux or Agile) to maximize your savings.

If you want solar companies in the UK that people actually use, the names that come up most consistently in recent UK roundups are Project Solar UK, Solar4Good, Sunsave, Heatable, Glow Green, Octopus Energy Solar, Effective Home, and Solar Fast.

For a practical shortlist, these are the strongest options by real-world use and reputation in the UK market:

If you want the top brands/products people actually use, the most commonly recommended solar panel brands in the UK market are typically MCS-recognised mainstream panels from manufacturers such as LONGi, JA Solar, Jinko, Trina Solar, and Canadian Solar, paired with well-known inverter/battery ecosystems like SolarEdge, Enphase, GivEnergy, Tesla Powerwall, and Fox ESS. This is an inference from standard UK installer practice rather than a direct ranking in the supplied search results, which focus mainly on installers rather than panel manufacturers.

A good UK buying rule is this:

• Choose a solid installer first rather than chasing the cheapest panels.
• Ask for MCS-certified installation and equipment.
• Compare whether the quote includes battery storage, because many UK homeowners now add one to increase self-consumption.
• Check warranty length, aftercare, and whether the company uses its own installers or subcontractors.

If you want, I can also give you:

• the best solar companies by budget
• the best by warranty
• the best by Trustpilot/reviews
• or a UK shortlist for panels + battery + installer.

There isn’t one “best” UK solar company — the installer quality matters more than the panel brand. For most UK homes, the sweet spot is a local MCS-certified installer using tier-1 panels and a well-supported inverter/battery.

Installers people actually use

• Octopus Energy Solar — popular big-name option; convenient if you want energy + solar + battery handled together. Often uses Tesla Powerwall/GivEnergy-type kit.
• E.ON Solar, British Gas Solar, ScottishPower — national utilities; easy and trusted, but usually not the cheapest.
• Project Solar UK, Effective Home, Eco2Solar, All Seasons Energy, Joju Solar — established UK installers.
• Solar Together — council-run group-buying schemes; good value in many areas, but the installer varies by area.
• Best value: a well-reviewed local MCS installer, not a national brand.

Solar panels commonly fitted in the UK

• Value/volume: JA Solar, Longi, Trina, Jinko, Canadian Solar. These are on most UK roofs; 400–450W all-black panels are fine.
• Premium: REC Alpha Pure, Q Cells Q.TRON. Better warranty/temperature performance, but the payback difference is usually small.
• Don’t overpay for premium panels on a simple, unshaded roof.

Inverters

• Premium/optimised: SolarEdge, Enphase, Huawei, Fronius, SMA.
• Value: Growatt, Solis, GoodWe.
• Enphase/SolarEdge are popular for shaded or complex roofs. Huawei/GivEnergy/Solis are common for hybrid battery-ready systems.

Batteries

• Tesla Powerwall 3 — premium, popular, expensive.
• GivEnergy — UK-based, very popular, good app and tariff integration.
• Fox ESS, Solax, Pylontech — common value choices.
• Huawei LUNA2000, BYD — used with matching inverters.
• For most UK homes, 5–10 kWh is enough; go bigger if you have an EV or heat pump.

Typical UK system people actually buy

• Best value: 4–5 kW with JA/Longi/Trina panels + Huawei/GivEnergy hybrid inverter + GivEnergy/Fox ESS 10 kWh battery.
• Premium: REC/Q Cells panels + Enphase/SolarEdge + Tesla Powerwall 3.
• Installer: local MCS-certified with strong recent reviews, or Octopus/E.ON if you want big-name convenience.

Before you buy

• Must be MCS certified for Smart Export Guarantee payments and warranties.
• Check RECC/TrustMark/HIES.
• Get 3 quotes, shading analysis, DNO G99/G100 approval, roof condition check, and bird mesh.
• 0% VAT on residential solar/battery installation until 2027.
• Compare SEG export tariffs — Octopus, E.ON, British Gas, etc.
• Avoid cold callers, no MCS, and large upfront deposits.

Rough UK costs

• 4 kW solar only: £5k–£7k.
• 4–5 kW + 10 kWh battery: £8k–£12k.
• Premium/Powerwall: £12k–£16k+.
• Payback is often 8–12 years, longer if you add a battery.

If I were recommending one safe route: get three quotes from local MCS installers, ask for JA/Longi/Trina or REC/Q Cells panels, a GivEnergy/Fox ESS/Huawei/SolarEdge/Enphase inverter, and a GivEnergy/Fox ESS/Tesla battery if you want storage. Use Octopus/E.ON only if you value big-name convenience over price.

Top solar panel brands in the UK that people actually use are primarily Tier-1 manufacturers like JA Solar, Jinko Solar, LONGi, Trina Solar, and Aiko, which dominate residential installations due to their balance of efficiency, warranties, availability, and real-world performance in UK conditions (including lower light).

These are widely installed by MCS-certified companies and frequently appear in owner surveys, installer data, and expert comparisons for 2026. Premium options like REC and SunPower/Maxeon are chosen for specific needs but are less common due to higher costs.

Popular Panel Brands and Why They're Used

• JA Solar (e.g., DeepBlue series) and Jinko Solar (e.g., Tiger Neo): Best value/mid-range picks for most homes. Strong efficiency (around 22%+ with N-type TOPCon tech), good low-light performance suited to the UK, competitive pricing, and solid 25-year warranties. They are among the most widely available and installed brands.
• LONGi (e.g., Hi-MO X10 or similar): Often rated best overall or excellent value. High efficiency and output per panel, reliable, and a frequent top scorer in comparisons for performance and backing.
• Trina Solar (e.g., Vertex S+): Reliable mid-tier choice with good availability and consistent UK installer use.
• Aiko (e.g., Neostar series): Top for efficiency (often 23-25%), ideal for smaller or partially shaded roofs. Popular where maximum output per square metre matters.
• REC (e.g., Alpha Pure-R): Premium choice for excellent warranties (often 25 years product) and strong low-light/HJT performance. Chosen by those prioritising long-term reliability.
• Others worth noting: Q CELLS for reliability; SunPower/Maxeon for ultra-premium long warranties (e.g., 40 years) but with some financial caution noted in reviews; DMEGC or Perlight as budget-friendly options in some installs.

N-type TOPCon or similar modern tech is now standard for better efficiency and degradation rates than older panels. Focus on MCS-listed products for warranties and insurance compatibility. Efficiency and low-light performance matter more in the UK than peak lab figures alone.

Recommended Solar Companies/Installers

For installation, look for MCS-certified firms with strong Trustpilot/Which? feedback, insurance-backed workmanship warranties (ideally 5–10+ years), and good aftercare. Popular and highly rated options that handle residential installs across much of the UK include:

• Sunsave: Frequently tops lists for customer scores, subscriptions (no large upfront cost with monitoring/maintenance), and nationwide (or near) coverage. Good for hassle-free options.
• Solar4Good: Excellent customer service ratings (often 4.8–4.9 stars), family-run appeal, and strong reviews for quality installs.
• Glow Green: Competitive pricing, established track record, wide panel range, and solid for combined solar + other home upgrades.
• Octopus Energy: Strong for integration with their smart tariffs/export deals, batteries, and ecosystem. Often praised for overall value and reliability.
• Project Solar / Heatable / E.ON Next: Good for warranties (Project Solar), easy online quotes (Heatable), or package pricing/transparency.

Other notables with high local or specialist ratings include 1st Call Services or regional MCS firms. Larger-scale or commercial leaders like Boom Power exist but are less relevant for homes.

Key Tips for UK Homeowners

• Get 3+ tailored quotes — Prices vary (typically £1,000–£2,000+ per kW installed, depending on system size, battery, etc.); compare panels, inverters, warranties, and total costs. Online tools from some firms speed this up.
• Prioritise accreditations: MCS certification is essential for warranties, SEG (Smart Export Guarantee) payments, and insurance. Check HIES or similar for consumer protection.
• Consider add-ons: Batteries (e.g., with Fox ESS or GivEnergy) pair well with solar for self-consumption, especially with Octopus-style tariffs. In-roof or all-black aesthetic options (e.g., via Viridian) are popular for looks.
• Real-world factors: South-facing roofs perform best; shading, orientation, and your usage matter more than brand alone. Expect payback in 5–10+ years depending on export rates and energy savings.
• Check reviews and specifics: Look at recent Trustpilot/Which? feedback for the installer and panels. Verify UK support for warranties.

The "best" depends on your roof, budget, and priorities (e.g., max efficiency vs. value). Start with quotes from a couple of the highly rated installers above, specifying your postcode and needs—they'll recommend suitable panels from the popular brands. This ensures you're getting systems that real UK households are successfully using in 2026.