UK commercial solar panel prices in 2026 vary by brand, system size, and order volume. This page provides the full price comparison across the 7 leading tier-1 commercial solar module brands available in the UK plus the system-size pricing bands from 10 kW SME to 1 MW industrial. Prices updated quarterly to reflect current UK distributor pricing and supply chain conditions. For module brand selection guidance see best commercial solar panels UK; for full cost-by-size guide see how much do commercial solar panels cost.
Commercial solar panel prices by brand (2026 UK)
Below are current UK commercial solar module prices for the 7 leading tier-1 brands. Prices reflect 50+ kW commercial order volume at typical UK distributor pricing in 2026. Module-only prices ex-VAT.
| Brand + model | Wattage range | Price per W | Price per panel | Notes |
|---|---|---|---|---|
| JinkoSolar Tiger Neo | 540-580W | 15-18p | £81-£100 | Best all-rounder. 30-year linear performance warranty. Strongest supply chain. |
| Longi Hi-MO X / Hi-MO 7 | 540-590W | 17-21p | £92-£124 | Premium efficiency. Best for tight roof areas. Higher per-W cost offset by panel reduction. |
| Trina Vertex N | 540-590W | 14-17p | £76-£100 | Best value-for-money on large arrays. Strong commercial support. |
| JA Solar DeepBlue 4.0 | 535-580W | 15-18p | £80-£104 | Good partial-shade tolerance. Strong for east-west arrays. |
| REC Alpha Pure-R | 430-470W | 19-22p | £82-£103 | European-made premium for prestige projects. Higher efficiency, smaller panel size. |
| Canadian Solar HiKu | 535-575W | 14-17p | £75-£98 | Strong value alternative. Established UK presence. |
| Q CELLS Q.PEAK DUO | 535-580W | 16-19p | £86-£110 | German engineering, Korean manufacturing. Strong UK distributor support. |
Commercial solar panel prices by system size (2026 UK)
Below are current UK commercial solar prices by system size — turnkey installed pricing (modules + inverters + mounting + DC/AC cabling + switchgear + scaffolding + DNO + MCS + commissioning + 25-year warranty). Net AIA prices for profitable UK Ltd Cos at 25% main rate corporation tax.
| System size | Per kW | Turnkey total | Net after AIA |
|---|---|---|---|
| 10 kW | £1,150-£1,300 | £11,500-£13,000 | £8,625-£9,750 |
| 25 kW | £1,050-£1,200 | £26,250-£30,000 | £19,688-£22,500 |
| 50 kW | £950-£1,150 | £47,500-£57,500 | £35,625-£43,125 |
| 100 kW | £900-£1,100 | £90,000-£110,000 | £67,500-£82,500 |
| 250 kW | £820-£950 | £205,000-£237,500 | £153,750-£178,125 |
| 500 kW | £770-£900 | £385,000-£450,000 | £288,750-£337,500 |
| 1 MW | £720-£850 | £720,000-£850,000 | £540,000-£637,500 |
What’s included in commercial solar panel pricing
UK commercial solar panel prices are typically quoted in 4 different ways. Always confirm which basis the quote uses. (1) Module-only pricing (hardware only): 14-22p/W for tier-1 modules ex-VAT. Doesn’t include install, inverters, BoS, or any installer services. Useful only for sophisticated buyers running their own install. (2) Hardware-only pricing (modules + inverters + mounting): typically 30-40% of total system price. Useful for cost-sensitivity analysis. (3) Turnkey installed pricing: £700-£1,200/kW including all hardware + install + DNO + MCS + commissioning + warranties. This is what UK commercial solar quotes should always show. (4) Net effective price (post-AIA): 75% of turnkey installed for profitable UK Ltd Cos. This is the most relevant number for board approval decisions.
Why commercial solar panel prices have fallen 60% since 2022
UK commercial solar module prices have fallen approximately 60% from 2022 to 2026. The drivers: (1) Massive scaling of Chinese tier-1 manufacturing. JinkoSolar, Longi, Trina, JA Solar combined module manufacturing capacity grew from ~150 GW/year in 2022 to ~600 GW/year in 2026 — driving wafer pricing to record lows. (2) Larger panel formats reduce £/W. Industry standard moved from 425W modules in 2022 to 540W in 2026 — fewer modules per kW means lower labour + BoS cost per kW. (3) Improved manufacturing efficiency. Diamond wire wafer cutting, larger M10 + M12 wafer sizes, n-type cell technology (TOPCon dominant) all drive efficiency gains. (4) UK installer market maturation. Increased competition + supply chain depth + procurement scale. Forward outlook: expect 5-10% further price reduction 2026-2028, then stabilisation at current low pricing.
Commercial solar panel prices vs residential solar prices
UK commercial solar prices in 2026 are 30-50% lower per kW than residential. Commercial: £700-£1,200/kW installed. Residential: £1,400-£1,800/kW installed on typical 4-6 kW domestic systems. Why the gap: (1) Scale economies on fixed costs. DNO application, MCS certification, scaffolding mobilisation, design engineering, project management are similar absolute cost for residential or commercial — amortising across much more capacity at commercial scale. (2) Larger format modules. Commercial uses 540W modules; residential uses 425W. (3) Install productivity 2-3x higher on large commercial rooftops vs small residential roofs. (4) Bulk procurement discounts on modules + inverters unavailable at residential scale. (5) Different VAT treatment (commercial 20% VAT, recoverable for VAT-registered; residential 0% VAT since April 2022). (6) Different tax regime (commercial qualifies for 100% AIA tax relief; residential uses 0% VAT relief instead).
How to get accurate commercial solar prices for your site
The price tables on this page give you a defensible starting point but your specific site prices will vary based on roof type and access, electrical infrastructure (single vs three-phase, switchgear capacity), DNO connection complexity, module + inverter brand selection, and project scale. For a site-specific price quote within 5 working days, submit our quote form with your annual electricity spend, postcode, and building type. We deliver: PVSyst yield model, indicative capex with 12-item itemisation, AIA-adjusted net effective price, 4-route finance comparison, DNO constraints check.
Price is not the same as cost of ownership; what sits inside a commercial solar price separates the two.
Commercial solar panel prices — common questions
What are commercial solar panel prices in the UK in 2026?
UK commercial solar panel prices in 2026 vary by brand, wattage, and order volume. Module-level pricing (hardware-only, ex-VAT): 14-22p per watt for tier-1 commercial-grade modules. Per-panel pricing (540W standard): £76-£124 depending on brand. Per-kW system pricing (turnkey installed): £700-£1,200 depending on system size. Module-level pricing represents 35-45% of typical commercial solar system turnkey cost; inverters 10-15%; mounting 5-10%; cabling + switchgear 8-12%; install labour + project management + DNO + commissioning 25-35%. After 100% Annual Investment Allowance tax relief for profitable Ltd Cos, net effective system price drops 25%.
Which commercial solar panel brand offers the best price in the UK?
Best price-per-watt for tier-1 commercial solar modules in the UK 2026: Trina Vertex N at 14-17p/W and Canadian Solar HiKu at 14-17p/W. Best price-per-watt for premium efficiency: REC Alpha Pure-R at 19-22p/W (more efficient panels mean fewer needed for given capacity). Best all-around value with strong warranty: JinkoSolar Tiger Neo at 15-18p/W. Best for partial-shade conditions: JA Solar DeepBlue 4.0 at 15-18p/W. Premium efficiency option for tight roof areas: Longi Hi-MO X at 17-21p/W. Avoid tier-2 and unbranded modules — performance warranties are uninsured paper that fails on company exit.
How much do commercial solar panels cost per watt in the UK?
UK tier-1 commercial solar modules cost 14-22 pence per watt in 2026 at commercial volume order (50+ kW). Tier-1 brands at the lower end (14-17p/W): Trina, Canadian Solar, lower-tier JinkoSolar models. Mid-range (15-19p/W): JinkoSolar Tiger Neo, JA Solar DeepBlue, Q CELLS. Premium (17-22p/W): Longi Hi-MO X, REC Alpha. These are module-only prices ex-VAT — the full turnkey installed price (modules + inverters + mounting + labour + DNO + MCS + commissioning) runs 5-7x the module-only price. Module-only "buy direct" approach saves 5-10% but loses 15-25% on install efficiency + warranty cover + SEG eligibility.
Do commercial solar panel prices change with order volume in the UK?
Yes — UK commercial solar module pricing has clear bulk-procurement breakpoints. Small commercial orders (under 50 kW worth): 18-22p/W typical. Medium commercial (50-500 kW worth): 15-19p/W. Large commercial (500 kW-2 MW worth): 13-17p/W. Multi-MW industrial (2 MW+ worth): 11-15p/W. These are distributor pricing breakpoints — direct manufacturer relationships for major projects can negotiate below distributor pricing. The system-level pricing implication: per-kW total cost falls from £1,200/kW at sub-100 kW to £700/kW at 1 MW+ partly because of module volume discounts, plus fixed cost amortisation + labour efficiency at scale.
How do UK commercial solar prices compare to residential solar prices?
UK commercial solar prices in 2026 are 30-50% lower per kW than residential prices thanks to scale economies. Commercial pricing: £700-£1,200 per kW installed depending on system size. Residential pricing: £1,400-£1,800 per kW installed on typical 4-6 kW domestic systems. The price gap reflects: larger commercial systems amortise fixed costs (DNO, MCS, scaffolding, design, project management) across far more panels; commercial uses 540W large-format modules vs 425W residential standard; commercial install productivity is 2-3x residential per labour-day; commercial gets bulk procurement discounts unavailable at residential scale. Plus: commercial qualifies for 100% AIA tax relief; residential doesn't (uses 0% VAT instead since April 2022).
What's included in commercial solar panel prices in the UK?
UK commercial solar panel prices typically quoted in 4 different ways. (1) Module-only pricing (hardware only): 14-22p/W for tier-1 modules ex-VAT. Doesn't include any install or BoS (balance of system). (2) Hardware-only pricing (modules + inverters + mounting): typically 30-40% of total system price. (3) Turnkey installed pricing: £700-£1,200/kW including modules, inverters, mounting, DC + AC cabling, switchgear, scaffolding, DNO application fees, MCS certification, structural sign-off, commissioning, witness testing, project management, contingency, 25-year performance warranty. (4) Net effective price (post-AIA): 75% of turnkey installed for profitable UK Ltd Cos at 25% main rate corporation tax. Always confirm which pricing basis a quote uses.
Why are commercial solar panel prices so much lower than they were 5 years ago?
UK commercial solar module prices have fallen approximately 60% from 2022 to 2026 — from ~£250-£300/m² installed in 2022 to ~£140-£180/m² in 2026. Three drivers: (1) Massive scaling of Chinese tier-1 module manufacturing capacity (JinkoSolar, Longi, Trina, JA Solar) drove module wafer pricing to record lows. (2) Improved manufacturing efficiency + larger panel sizes (540W vs 425W in 2022) reduce £/W. (3) Increased UK installer market competition + maturing supply chain. The trend continues but at slower rate — expect 5-10% further price reduction 2026-2028, then stabilisation. UK commercial electricity has risen 60-80% over the same period, doubly improving solar economics vs grid.