Solar Panels for Warehouses
Distribution centre solar PV with export-limited G99 design. Big roofs, predictable load curves and grid-aware design that doesn't wait two years for capacity.
Quick Answer
- Typical size: 150 kWp–1.5 MWp roof PV on large composite-clad spans
- Typical project value: £105k–£900k installed (ex-VAT, before tax relief)
- Year 1 saving: 30–55% off baseline electricity bill (cold-chain higher)
- Payback: 3.8–5.4 years on capex; cold-storage with battery 3.0–4.2 years
- Tax relief: Annual Investment Allowance (100% of qualifying spend in year 1, up to £1m a year), plus carbon-tendering eligibility
- Lead time: 18–28 weeks incl. DNO G99 (G100 on most ≥300 kWp sites)
Warehouses and distribution centres have the easiest commercial solar economics in the UK. Roofs are large and clear, planning is routine PD, and the daytime electrical demand from picker trucks, conveyors and HVAC fits the solar generation curve almost perfectly. The bottleneck is rarely the building — it is the local grid.
Where the economics actually work
System sizes for warehouses
Most UK distribution centres can absorb 250kWp–1MWp+ on roof alone. iPort, Magna Park, Centre Parcs DC and similar large-shed sites routinely take 1.5–3MWp.
Grid is the constraint
Most warehouse rooftops in 2026 are grid-constrained. We design with G100 export limitation from day one, so your install gets approved in 8–12 weeks rather than waiting 12+ months for grid reinforcement.
Roof structure
Most warehouse roofs are steel portal with composite cladding rated 15kg/m² imposed load. Panels at 12–13 kg/m² with frame-bonded rails fit inside the design envelope.
Self-consumption
Warehouse self-consumption varies widely with shift pattern — your HH data audit establishes the real figure before we size anything.
System sizes & typical project values
See all solar for warehouses cities we cover →
FAQs for solar for warehouses buyers
What if our warehouse is rented?
How does G100 export limitation work in practice?
Will solar reduce my standing charge?
Watch real KMM solar for warehouses projects
Real warehouses installs from Steve and Kieren — case studies, install footage and economics in plain English.
KMM solar for warehouses case studies
Every case study below is a real KMM customer with measured Year 1 generation, real payback maths and named project manager.
Doctors' Surgery Solar Rescue: 100kW + Battery Backup
A Market Deeping doctors' surgery had been let down by a previous solar installer — non-stop issues, no monitoring, zero confidence. KMM installed 100kW solar, 100kW battery, Tigo optimisers on every panel.
UK Farm Solar Case Study: 3-Year Payback
UK farm sized its solar at 50,000 kWh against 37,000 kWh usage to future-proof. KMM modelled a 3-year 3-month payback and roughly £500k of 30-year savings.
UK Farm Solar: Cutting Energy Costs on a Dryer
UK farm with grid-only power and a summer grain dryer turned to solar to harness rising energy costs, drive its dryer, and earn export income.
Related guides for commercial buyers
Plain-English deep-dives on the topics that actually drive commercial solar decisions — written by KMM project managers, not marketing.
Quote a KMM solar for warehouses install
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Quote a KMM solar for warehouses install
Free drone survey, structural assessment and bound-in quote within 7 working days for solar for warehouses sites across the UK.
Quote for solar for warehouses
Tell us about your roof, your bills and your goals. KMM runs a fully funded electrical & structural survey, designs a system, runs the numbers and tells you honestly whether solar makes sense for you. No deposit, no pressure.
Book a Site Survey → 0115 647 3822