Best Solar Panels UK (2026)
We compared 6 solar panels on efficiency, price, warranty, and real-world UK performance. Here are the ones worth installing.
See the ComparisonDisclosure: This page contains affiliate links. We may earn a commission at no extra cost to you. All opinions are our own and based on independent research.
Quick Answer: Which Panels Should You Buy?
Best Overall
JA Solar Deep Blue 4.0 (445W) — 22.4% eff.
Best Value
Canadian Solar HiKu7 (450W) — £0.24–£0.33/W
Best Budget
Jinko Tiger Neo (440W) — £0.24–£0.32/W
£5,000–£8,000
System Cost (4kW)
Installed, 0% VAT
3,000–3,400 kWh
Annual Output (4kW)
UK average
22–24%
Top Efficiency
N-type / IBC
25–40 years
Performance Warranty
87–88% at end
Solar Panel Comparison Table
| Panel | Wattage | Efficiency | Cost/Panel | £/Watt | Warranty | Rating |
|---|---|---|---|---|---|---|
| JA Solar Deep Blue 4.0 (445W) | 445W | 22.4% | £120–£160 | £0.27–£0.36 | 15 years / 30 years (87.4%) | 4.7 |
| LONGi Hi-MO 7 (440W) | 440W | 22.5% | £130–£175 | £0.30–£0.40 | 15 years / 30 years (88.9%) | 4.6 |
| Canadian Solar HiKu7 (450W) | 450W | 22.0% | £110–£150 | £0.24–£0.33 | 15 years / 30 years (87.4%) | 4.5 |
| SunPower Maxeon 7 (430W) | 430W | 24.0% | £280–£380 | £0.65–£0.88 | 40 years / 40 years (88.3%) | 4.4 |
| Trina Vertex S+ (445W) | 445W | 22.3% | £115–£155 | £0.26–£0.35 | 15 years / 30 years (87.4%) | 4.5 |
| Jinko Tiger Neo (440W) | 440W | 22.3% | £105–£140 | £0.24–£0.32 | 12 years / 30 years (87.4%) | 4.3 |
Detailed Reviews
JA Solar Deep Blue 4.0 (445W)
Best overall — performance, availability, and value
£120–£160/panel
Wattage
445W
Efficiency
22.4%
Cost/Watt
£0.27–£0.36
Technology
N-type TOPCon Monocrystalline
Pros
- Excellent efficiency at 22.4% — among the best in class
- N-type TOPCon technology with very low degradation
- Widely available from UK installers — no supply issues
- Strong 30-year performance warranty
- Good low-light and high-temperature performance
Cons
- Not the cheapest panel available
- Larger panel size may not suit all roofs
- Less well-known brand name than SunPower
LONGi Hi-MO 7 (440W)
Best technology — HPBC cells with industry-leading degradation
£130–£175/panel
Wattage
440W
Efficiency
22.5%
Cost/Watt
£0.30–£0.40
Technology
HPBC Monocrystalline
Pros
- HPBC (Hybrid Passivated Back Contact) cell technology
- Industry-leading low degradation — 88.9% at year 30
- 22.5% efficiency — marginally best-in-class
- LONGi is the world's largest solar manufacturer
- Excellent shade tolerance
Cons
- Slight price premium over JA Solar
- HPBC technology is newer with less long-term field data
- Limited UK installer availability compared to JA Solar
Canadian Solar HiKu7 (450W)
Best value — highest wattage at the lowest cost per watt
£110–£150/panel
Wattage
450W
Efficiency
22.0%
Cost/Watt
£0.24–£0.33
Technology
N-type TOPCon Monocrystalline
Pros
- Lowest cost per watt of any premium panel
- 450W — highest wattage in this comparison
- Tier 1 bankability — trusted by commercial installers
- Strong 30-year performance warranty
- Good availability across UK installer networks
Cons
- Slightly lower efficiency than JA Solar or LONGi
- Heavier panel at 22.5 kg
- Less cutting-edge cell technology than LONGi HPBC
SunPower Maxeon 7 (430W)
Best premium — highest efficiency, longest warranty, small roofs
£280–£380/panel
Wattage
430W
Efficiency
24.0%
Cost/Watt
£0.65–£0.88
Technology
IBC (Interdigitated Back Contact)
Pros
- 24.0% efficiency — highest of any residential panel
- Industry-leading 40-year warranty (product and performance)
- Smaller panel size — ideal for limited roof space
- IBC cells with no front busbars — sleek all-black design
- Best shade performance due to back-contact architecture
Cons
- Significantly more expensive — nearly 2x the cost per watt
- Maxeon (spun off from SunPower) has faced financial uncertainty
- Limited installer network in the UK
- 40-year warranty only meaningful if manufacturer survives
Trina Vertex S+ (445W)
Best all-rounder — balanced specs with strong installer support
£115–£155/panel
Wattage
445W
Efficiency
22.3%
Cost/Watt
£0.26–£0.35
Technology
N-type TOPCon Monocrystalline
Pros
- Strong balance of price, efficiency, and availability
- Trina is a top-3 global manufacturer with excellent bankability
- Wide UK installer availability
- N-type TOPCon with low degradation
- Lightest panel in this comparison at 21.3 kg
Cons
- Very similar specs to JA Solar — hard to differentiate
- Slightly lower efficiency than JA Solar
- Brand less well-known to UK homeowners than SunPower
Jinko Tiger Neo (440W)
Best budget — lowest cost panel from a Tier 1 manufacturer
£105–£140/panel
Wattage
440W
Efficiency
22.3%
Cost/Watt
£0.24–£0.32
Technology
N-type TOPCon Monocrystalline
Pros
- Cheapest Tier 1 panel available in the UK
- Jinko is the world's #1 panel manufacturer by volume
- N-type TOPCon technology at budget pricing
- Good 30-year performance warranty
- Widely available — used in large-scale UK solar farms
Cons
- Only 12-year product warranty (vs 15 for competitors)
- Perceived as 'budget' option despite strong technology
- Customer support primarily through installers
How to Choose the Right Panels for Your Roof
If you have a large roof
Roof space isn't a constraint — choose on value. Canadian Solar HiKu7 or Jinko Tiger Neo give you the most watts per pound.
Our pick: Canadian Solar HiKu7
If you have a small roof
Maximise output per square metre. SunPower Maxeon 7 at 24% efficiency generates the most power from limited space, though at a premium price.
Our pick: SunPower Maxeon 7
Best all-round choice
JA Solar Deep Blue 4.0 offers the best balance of efficiency (22.4%), price, and availability. It's what most UK installers recommend.
Our pick: JA Solar Deep Blue 4.0
If you're adding a battery
Pair solar panels with a home battery to store excess generation. Any panel works, but higher-wattage panels mean fewer panels and lower installation costs.
Solar Panel System Costs (2026)
| Component | 3kW (7 panels) | 4kW (9 panels) | 6kW (14 panels) |
|---|---|---|---|
| Panels | £800–£1,100 | £1,000–£1,400 | £1,500–£2,200 |
| Inverter | £500–£800 | £600–£1,000 | £800–£1,200 |
| Mounting & wiring | £400–£600 | £500–£700 | £700–£1,000 |
| Installation labour | £800–£1,200 | £1,000–£1,400 | £1,200–£1,800 |
| Scaffolding & DNO | £400–£600 | £400–£600 | £500–£800 |
| Total installed | £3,500–£5,000 | £5,000–£7,000 | £7,000–£10,000 |
| Annual generation | ~2,500 kWh | ~3,400 kWh | ~5,100 kWh |
| Annual savings | £500–£700 | £700–£950 | £1,000–£1,400 |
Prices based on UK installer quotes as of Q1 2026. Includes 0% VAT (home solar is VAT-exempt until March 2027). Southern England yields; Scotland ~10% lower.
Pair Your Panels with a Battery
Without a battery, you only use 30–40% of the electricity your panels generate. A 5kWh battery boosts self-consumption to 70–80%, saving an extra £400–£700/year.
Best Home Batteries UK 2026Get a Free Battery Recommendation
Tell us about your home and we'll email you a personalised recommendation — no spam, no hard sell.
Frequently Asked Questions
Frequently Asked Questions
DIY & off-grid panels
The installed brands above (JA Solar, Jinko, Canadian Solar) ship through certified installers only. For sheds, caravans, vans, allotments or campers, these 100–200W panels are buy-today on Amazon UK.
As an Amazon Associate we earn from qualifying purchases. We also work with the Awin affiliate network.
Prices accurate as of 17 May 2026 and subject to change. The price shown on Amazon at the time of purchase applies.
DOKIO
Dokio 2 PC Solar Panel 100 W 12 V Monocrystalline Photovoltaic System for Camper Home Cabin
2×100W rigid mono panels. Best-reviewed budget pair — shed, caravan, off-grid kit.
Renogy
Renogy Solar Panel 200W, 12 V Monocrystalline Solar Panel PV Panel Off Grid Solar Power for Motorhome, Shed, Campervan Caravan and Boat Compact Design
Single 200W rigid mono. The "one panel" upgrade for a 12V leisure system.
Renogy
Renogy EFLEX-CORE 200W Portable Solar Panel, IP65 Waterproof Foldable Solar Panel Power Backup, Solar Charger for Power Station RV Camping Off Grid
200W foldable portable. Pairs natively with the Renogy power stations.
ALLPOWERS
ALLPOWERS SE200 200W Portable Solar Panel for S2000 PRO R600 R1500 LITE R2500 V2 R4000 Power Station, Foldable Monocrystalline Solar Cell Solar Charger Solar Kit for RV Van Outdoor Off-Grid
200W portable foldable. Compatible with ALLPOWERS / EcoFlow / Jackery via included adapters.
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