P10 (video V4)Plot D2 warehouse roof, with a small play button for its video
Plot D2: 502 kWp on one warehouse roof
1,128 JA Solar 445 W panels and four 110 kW Solis inverters, awarded by HEB Group.
V4Plot D2 warehouse install, muted loop behind the copy · plot-d2-warehouse-mercia-installation-system.mp4 · poster plot-d2-video-poster.webp
Solar panels for warehouses, factories and industrial units
Large flat or pitched roofs suit solar, especially on sites with high daytime lighting, refrigeration or FLT loads. We design each system around your roof, your half-hourly energy data and your operating hours.
- 300+
commercial installations
Right for your site if…
- Most of your power is used in daylight hours
- Lighting, refrigeration or FLT charging run all shift
- You have a large roof that sits empty
Certified & Accredited By
Warehouse and factory roofs we've fitted
- P04Scotswood Industries site aerial
Scotswood Industries: 263 kWp for a manufacturer
446 panels and four Solis inverters (200 kW total) on an energy-intensive manufacturing site, with EV charging for staff and fleet.
Why industrial solar panels suit warehouse and factory roofs
Large areas of suitable roof space often sit idle while sites keep buying daytime power from the grid. Solar turns that roof into on-site generation, sized around your demand, roof layout and operating hours.
Warehouses
Big flat or pitched roofs over long working days. High daytime lighting, refrigeration and FLT charging use the power as it's made. Plot D2's 507,000 sq ft roof now carries 502 kWp.
Factories
Machinery and production lines draw most of their power in the day. We size solar, and storage where it helps, around your production schedule, as we did with 263 kWp at Scotswood Industries.
Industrial units
One unit or several on an estate. The system is sized to each unit's demand and roof, so the power is used where it's made.
What we check before we design
Every system starts with a site survey and a review of your half-hourly energy data. We look at your roof's layout and condition unconfirmed, how the panels will be fixed, and what your electricity connection can take, so the design fits the building and the way you use power.
[George: the roof types we fit on, for example metal profile, standing seam or fibre cement, and how structural checks are done.]
Site survey and half‑hourly energy review
Roof layout, condition unconfirmed and fixing method
Connection capacity and the G99 route
Scaffolding, edge protection and working-at-height access
Installed around a working site
Your operations keep running
Access, working at height and deliveries are planned around your shifts. Work is scheduled, controlled and explained before it starts, and delivery follows CDM 2015 and BS 7671.
Grid connection and G99
Systems this size need your network operator's approval under G99 before they connect. We make the application, and if you want solar, battery and EV charging, we plan them together: one G99 application instead of three.
Industrial battery storage, now or later
A battery keeps more of your solar on site, cuts peak imports and adds resilience where your load profile supports it. Add it now, or phase it in as loads grow.
What a warehouse solar system costs
It depends on the system size, your roof, access, the inverters, whether you add battery storage and any work on your electricity supply. We model expected generation, savings and grid impact before you commit to a project scope, so the business case is based on your site, not a generic estimate.
[George: a price range per kWp for warehouse and factory roofs, as customers paid, with VAT stated.]
Solar panels may qualify for capital allowances such as the Annual Investment Allowance, which can reduce your tax bill in the year you buy. Potential tax treatment depends on your company's position and your own professional advice.
How a warehouse solar installation works
Survey and energy review
We visit the site and review your half-hourly energy data, so the system is sized to how you use power.
Proposal and grid application
A proposal with the system design, ways to pay and the G99 route, then the application to your network operator.
Installation around your site
Scaffolding, edge protection and the install itself, planned around access and live operations.
Handover and monitoring
Commissioning, the certification pack and monitoring, then maintenance options after handover.
Frequently asked questions
How much do solar panels for a warehouse cost?
It depends on the system size, your roof, access, the inverters, whether you add battery storage and any work on your electricity supply. We model expected generation, savings and grid impact during the proposal, and you can pay outright, through a Smart Ease payment plan or a PPA.
Are solar panels worth it for a warehouse or factory?
Commercial solar helps businesses reduce daytime grid imports, gain more control over energy costs and support sustainability reporting. It works best on sites with suitable roof space and strong daytime demand, which describes most warehouses and factories. The survey tells you whether yours is one.
Which solar panels are best for an industrial roof?
The ones that suit your roof, shading and load. At Plot D2 we fitted 1,128 JA Solar 445 W panels with four 110 kW Solis inverters. We also design with SolarEdge, Fox ESS and SolaX equipment, matched to each roof.
Will installation disrupt my operations?
Installations are planned around live-site access, safety requirements and day-to-day operations wherever possible. We keep disruption controlled, scheduled and clearly communicated.
Do I need DNO approval before installation?
Yes. Under ENA Engineering Recommendation G99, systems rated above 3.68 kW (or 16 A per phase) on single-phase, or with equivalent three-phase capacity, require G99 approval before connection. We review your site and manage the correct application route.
Are there grants for solar panels on commercial buildings?
Public funding is selective and sector-specific, but still worth checking for schools, NHS sites, local authorities and eligible regional programmes. We can help you assess fit before formal applications.
Speak to an expert about your roof
Tell us about your site, energy use and future plans. We'll help you assess solar, battery storage and EV charging for one site or a wider rollout.
300+ commercial installations · NICEIC approved contractor · CHAS Advanced
What happens next
Site survey
And a half-hourly energy review.
Proposal
With the spec, funding options and DNO path.
Installation
Planned around your operations and site.
We install for businesses anywhere in England, Wales and Scotland from our base in Mickleover, Derby.