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Commercial solar and battery storage
Commercial Solar Panels for London Businesses
Solar and battery storage designed around how your business actually uses electricity. We survey the roof, model the system against your consumption data, handle the grid connection with the network operator and install it with as little disruption to your operations as we can manage.
Buy the system outright, or pay nothing upfront through a power purchase agreement and simply pay for the solar electricity your site uses.
- MCS certified
- TrustMark
- RECC
- NAPIT
- Rated 4.8/5 on Trustpilot
Why London businesses are adding solar
Daytime use lines up with daytime generation
Offices, warehouses, shops and workshops use most of their electricity during the working day, which is when panels generate. Most of what a commercial system produces can be used on site rather than exported.
Less exposure to grid prices
Every unit you generate is one you are not buying from your supplier, so part of your energy cost stops moving with the market.
Reporting, tenants and tenders
On site renewable generation gives you a measured figure for carbon reporting, for tenant and customer questions, and for tenders that ask what you are doing about energy.
A roof that is doing nothing
A flat warehouse roof or the pitched roof over a shop is usually unused space. Solar turns it into something that works for the business.
What any one site saves depends on its roof, its consumption pattern, its tariff and how much of the generation it can use. We do not quote savings until we have seen your data. The commercial solar assessment is where that is worked out.
Buy it, or pay only for the power you use
Buy the system
You own the panels, the inverter and any battery from day one, and you keep all the benefit of the electricity they generate.
Commercial installations carry standard rate VAT, which VAT registered businesses can normally reclaim, and solar equipment may qualify for capital allowances. Your accountant will confirm what applies to your business.
Power purchase agreement (PPA)
The system is installed on your roof with no upfront cost to you. Maintenance is taken care of for the length of the agreement, and you pay a fixed rate for the solar electricity your site uses, agreed before anything is installed.
Every PPA site is assessed and approved before the agreement is offered, and we explain the full terms as part of your proposal.
Not sure which suits you? We set out both side by side as part of the assessment.
What we install
Solar PV on most commercial roofs
Flat roofs and pitched tile, slate and metal roofs, with the mounting system matched to the roof and its structure.
Battery storage
Batteries hold midday generation for later in the day, or cover the hours your site is busiest. Single and three phase supplies. See battery storage for how the systems work.
Systems of any size
There is no fixed upper limit on what we take on. Systems up to 50kW are installed and certified under MCS. Larger systems follow the same design and installation standards and always go through a full G99 application with the network operator.
Maintenance and repairs
Once it is running, we can look after it, including systems we did not install. See commercial solar maintenance.
Recent commercial and mixed use installations
A pub in NW6: solar and battery fitted during a full refurbishment
Seventeen 450W panels across two roof planes, a three phase hybrid inverter and modular battery storage, connected through UK Power Networks. We installed while the building was closed for a full internal refurbishment, which meant sharing scaffold with the main contractor, working through a difficult rafter void and fitting around an electrical installation that was still being finished.
Nine flats, nine solar systems, one roof
A landlord with nine flats and a commercial unit in one new building wanted each flat to have its own solar supply. We designed and installed nine separate systems on the shared membrane roof, 53 panels in total, each with its own inverter and generation meter, so every flat's solar feeds its own consumer unit.
Cable routes were planned flat by flat, some external and some through ceilings and trunking, to keep disruption to residents down.
How a commercial project runs
Step 1
Send us your details
Your site, your roof, and your half hourly consumption data if you have it. Your supplier can provide this.
Step 2
Desktop review
We look at the roof from above and model a first design against your consumption.
Step 3
Site survey
Roof condition, structure, access, the electrical intake and where the inverter and any battery will go.
Step 4
Proposal
System design, expected generation, and purchase and PPA options side by side.
Step 5
Grid connection
We make the G98 or G99 application to the network operator. For larger systems this step sets the timetable.
Step 6
Installation and handover
Scheduled around your working hours, then commissioning, certification and monitoring set up.
Full detail on what we need and what you get back: what happens in a commercial solar assessment.
Sectors we work with
Warehouses and logistics, offices and commercial buildings, manufacturing, retail, schools, healthcare, leisure facilities, agriculture and fleet depots. All sectors are listed on our commercial sectors page.
Common questions
Do I need permission from the network operator?
Yes. Most commercial systems are large enough to need a G99 application before connection (UK Power Networks across most of London), and the operator can limit how much you export. We prepare and submit the application. Our guide to commercial solar and G99 explains the process.
Do I need planning permission?
Many installations on non domestic roofs fall under permitted development, but there are limits and exceptions, including conservation areas, listed buildings and some roof types. We check this for your site during the assessment.
Can my roof take the weight?
That is checked on every job. Flat roofs in particular need the structure and the mounting system matched. Where needed, a structural assessment is arranged before the design is finalised.
We rent our building. Can we still have solar?
Often yes, with the landlord's consent, and landlords can also install solar and supply their tenants. Tell us who owns the roof and we will advise on the options, including a PPA.
Will installation disrupt the business?
We plan scaffold, access and the electrical connection around your hours. Connecting the system usually needs a short planned power off, which we schedule with you.
What about maintenance?
Under a PPA, maintenance is covered for the length of the agreement. If you buy the system, we offer planned maintenance contracts and one off visits.
Which areas do you cover?
All of London and roughly 50 miles around it.
Find out what solar could do for your site
Send us your site address and, if you have it, your half hourly data. We reply to every enquiry within one working day.
Solar Panels London. Last reviewed 11 November 2026. Grid connection rules referenced: ENA Engineering Recommendations G98 and G99. MCS standard referenced: MIS 3002. VAT and capital allowance treatment depends on your business; check with your accountant.
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