MCS-Certified Commercial Solar
MCS-certified commercial solar specialists. PPA, asset finance, or capital purchase. Free desk feasibility from your half-hourly meter data — fixed-price quote within 7 working days.
40-70%
Bill reduction typical
5-8 yr
Payback period
25 yr
Output warranty
£0
Capex with PPA
Accredited and certified for UK commercial solar work
Why Specialists, Not Generalists
UK SMEs collectively spend £18 billion a year on electricity, with the average small business now paying 35–55p/kWh on a fixed contract — more than double the rate three years ago. For a typical 50-employee business with a single office or light-industrial unit, that's £30,000–£90,000 a year. Solar PV remains the fastest, lowest-risk way for an SME to cut a meaningful chunk off that bill, and with 100% Annual Investment Allowance still in place and Smart Export Guarantee paying for any excess, the simple payback for most UK SME installs lands at 5–8 years.
We design and install solar PV systems for UK SMEs across offices, retail, light industrial units, mixed-use commercial buildings, and garden centres. Every quote starts with a free desk-based feasibility built from your half-hourly meter data and roof drawings — not a clipboard estimate. We model PPA, asset finance, and capital purchase routes for every quote so your finance director gets a clean comparison rather than one option dressed up as the only option.
We model from your half-hourly meter data, not generic estimates.
MCS-certified, NICEIC-registered, RECC and TrustMark licensed.
Asset finance and PPA options included with every quote — not just cash purchase.
100% AIA tax relief modelled into your IRR — your accountant gets a clean handover pack.
10-year IWA insurance-backed workmanship warranty — your premises insurer will be happy.
How It Works
For sub-100 kW SME installs. Larger systems run 6-12 months end-to-end (mostly waiting on G99 grid connection).
We pull your half-hourly meter data and roof drawings, model the system, and share an indicative proposal — no site visit required.
If the numbers work, our engineers visit for a 1-day structural and electrical survey. Final design and fixed-price proposal follow.
We handle planning (where required), G98/G99 grid connection application, and any grant paperwork. You sign one contract — we manage the rest.
1-4 weeks on site (depending on size). Final commissioning, customer training, monitoring active. 25-year output warranty starts.
Real 2026 UK Pricing
Per-kW pricing falls with scale. Below 100 kW your DNO connection is fast (G98, 4-8 weeks) but per-kW cost is highest. Above 100 kW you cross into G99 territory (6-18 months DNO process) but per-kW cost drops sharply. Numbers below are turnkey — design, supply, install, commissioning, monitoring — and reflect what we've quoted across 350+ UK SME projects since 2010.
| System size | Per kW | Turnkey | Payback |
|---|---|---|---|
| 25 kW | £1,100-1,200 | £22-30k | 6-7 yr |
| 50 kW | £1,000-1,200 | £45-60k | 6-7 yr |
| 100 kW | £900-1,100 | £85-110k | 6-6.5 yr |
| 250 kW | £780-950 | £190-240k | 5.5-6 yr |
| 500 kW | £740-880 | £370-440k | 5-5.5 yr |
| 1 MW | £700-850 | £700-850k | 4.5-5 yr |
100% AIA tax relief
Limited companies deduct the full capex from taxable profits in year one — effective 25% discount for profitable businesses. HMRC AIA guidance →
Smart Export Guarantee
Export tariffs 4-15p/kWh in 2026 (Octopus Outgoing leads at 15p). MCS certification mandatory. Ofgem SEG guide →
Business rates exempt
Rooftop PV serving the same hereditament is exempt from business rates until at least 2035. Read our guide →
Authoritative References
For full UK commercial solar policy, regulation, and certification detail, see the HMRC Capital Allowances guidance, Ofgem SEG scheme, MCS Certified installer database, NICEIC contractor verification, Energy Networks Association for G98/G99 connection rules, Energy Saving Trust for general guidance, MEES regulations (gov.uk), Federation of Small Businesses, HSE asbestos guidance, RECC consumer code, TrustMark scheme, and Solar Energy UK industry body. Our paperwork pack on every install includes verification references for each.
Numbers above assume: south-facing or east-west pitched array on existing roof, mid-band UK irradiance (1,000 kWh/kWp), 70% self-consumption, blended grid retail at 28p/kWh in 2026, AIA captured at 25% corporation tax. See full cost methodology →
UK Compliance & Regulation
Solar PV on a commercial building touches planning, grid connection, tax, insurance, EPC compliance, and procurement. We cover every angle — read the dedicated guide for your specific question, or jump straight to a quote.
Grid connection
Above 100 kW. 6-18 months timescale.
Grid connection
Sub-100 kW. 4-8 week typical.
Tax
100% AIA up to £1m. 25% effective relief.
Tax
20% standard. Reclaimable for VAT-registered.
Tax
Rooftop PV exempt to 2035.
Planning
Listed Building Consent process.
Planning
Article 4, sympathetic install.
Funding
PSDS, Salix, MCA grants.
Finance
Zero capex, 15-25 yr term.
Risk
Underwriting, premiums, certification.
Technical
Profiled steel, membrane, tile, asbestos.
Technical
21-25% mono PERC, TOPCon, HJT.
Sectors We Serve
From 8 kW hair salons to 1.5 MW factories — we model the right system for your sector.
150-500 kW typical install. £127,000-£425,000.
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250-1,500 kW typical install. £190,000-£1,275,000.
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100-1,000 kW typical install. £85,000-£850,000.
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100-400 kW typical install. £90,000-£340,000.
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250-2,000 kW typical install. £200,000-£1,500,000.
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200-1,000 kW typical install. £150,000-£850,000.
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200-2,000 kW typical install. £160,000-£1,600,000.
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50-500 kW typical install. £45,000-£425,000.
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80-300 kW typical install. £72,000-£270,000.
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60-300 kW typical install. £54,000-£270,000.
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25-80 kW typical install. £24,000-£72,000.
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75-400 kW typical install. £67,000-£340,000.
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Recent Installations
PVSyst-modelled, audit-grade. Year-one performance within 3% of model on every install.
A 45-person digital marketing agency operating from a converted warehouse near Bristol. Existing electricity bill £18,000/year, rising fast. Founders wanted client-visible sustainability commitment.
Family-owned plastics manufacturer in a 1990s industrial estate unit. Electricity spend £58,000/year. Asked for a fast-payback no-fuss design.
MCS-certified, NICEIC-registered, IWA-backed. Every install audited against PVSyst yield model in year one.
UK Coverage
Local feasibility, council planning awareness, fixed-price proposal within 7 working days. 8+ cities covered.
Greater London
Population 8,908,081
View London solar info
West Midlands
Population 1,141,816
View Birmingham solar info
West Yorkshire
Population 793,139
View Leeds solar info
Glasgow City
Population 635,640
View Glasgow solar info
South Yorkshire
Population 584,853
View Sheffield solar info
Greater Manchester
Population 568,996
View Manchester solar info
City of Edinburgh
Population 506,520
View Edinburgh solar info
Merseyside
Population 498,042
View Liverpool solar info
Real Customers, Real Outcomes
Verified Google reviews from UK SMEs across automotive, food production, education, and professional services.
"Honest, technical, and on schedule. Three things you don't often get from a commercial installer. Our system has out-performed the model every quarter since commissioning."
"They modelled from our half-hourly data and the proposal was clearly grounded in reality, not a sales pitch. Payback came in 4 months ahead of forecast."
"The grant paperwork alone would have taken our team months. They wrote the application, got approval, and started on site within a quarter."
Common Questions
A typical SME install ranges from £20,000 (small office, ~25 kW) to £225,000 (light industrial, ~250 kW). Cost per kW is typically £900–£1,300 below 100 kW, falling to £750–£950/kW above 200 kW. After 100% AIA tax relief, effective net cost for limited companies is roughly 75% of headline price.
5–8 years for most UK SMEs. Daytime-occupied sites with high baseload (manufacturing, retail) hit the lower end. Office-only sites with moderate weekend usage run 7–9 years. Adding battery storage can extend payback by 2–3 years but lifts annual savings 25–40%.
Yes — most SMEs we work with don't pay any capex up front. Asset finance over 5–7 years is cash-flow positive from month one (the finance payment is less than the bill saving). PPA options have zero capex and start saving from day one. We model both options for every SME quote.
Not necessarily for installs below 17 kW per phase. For larger systems, three-phase supply is generally required. Many small SMEs have single-phase supplies that limit practical PV to about 13 kW — a three-phase upgrade may be needed for larger systems and we factor this into the feasibility study.
100% AIA means the full capex is deducted from taxable profits in year one, up to £1m per year. For a profitable limited company at 25% corporation tax, an £80,000 install delivers £20,000 of tax relief — net cost £60,000. Similar reliefs apply for unincorporated businesses on cash basis.
Solar improves EPC rating — typically lifts a band C to a B, or a band D to a C. Useful for landlords who must comply with MEES (Minimum Energy Efficiency Standards) — currently requiring band E or above, rising to band C by 2027 and band B by 2030 for non-domestic property. Solar is a recognised contribution.
Specialist Sister Sites
A network of specialist UK commercial solar sites — each focused on a sector or region we know inside out.
For multi-site portfolios and large industrial estates, talk to UK commercial solar specialists.
Production unit or factory? See our sister specialist site for solar PV for manufacturing facilities.
Distribution or 3PL? Talk to our specialist team for warehouse rooftop solar.
Hotel, conference venue, or restaurant chain? See commercial solar for hospitality.
Multi-academy trust or independent school? Visit solar for schools and academies.
Need capital-light finance? Our finance specialists at commercial solar finance and PPA.