Commercial Solar Installations in Greater Manchester

If your business is spending hundreds or thousands a month on electricity, commercial solar can cut that down sharply. We design and install systems and model the payback from your own consumption figures. Panels commonly carry warranties in the 25 to 30 year range, so there is a long stretch of much cheaper electricity after that. We've worked with factories, retail units, hotels, cafes and bakeries, and we'll put together a solar and battery setup that makes financial sense for the way your business actually runs.

Why commercial properties benefit more than domestic

Commercial electricity prices have gone up sharply over the last few years, and businesses have generally been hit harder than domestic customers. We recently spoke to a Prestwich baker who was spending £10,000 a month on electricity and nearly went under because of it. Another client of ours, a carpet warehouse in Bolton, spends £700 a month. A 50-panel flat-roof design is sized to cover a large share of that daytime load, with the generation and payback figures modelled from their own consumption and the assumptions written down alongside them.

The maths works particularly well for commercial because businesses use electricity during the day, which is when solar is generating the most. Domestic properties typically use most of their electricity in the evening, which means you usually need battery storage to make full use of solar. Commercial properties consume the energy as it's generated - so you're using nearly every kilowatt-hour the panels produce, and that's what shortens the payback.

Real examples from our commercial work

We're currently working with a carpet and interior design warehouse in Bolton. They own the building, they've got a large flat roof going unused, and they were spending £700 a month on electricity. We've put two options together for them: a 50+ panel system covering just the flat roof; or a larger 115-panel system using both the flat roof and the pitched sections, which costs more up front but generates more on top of that. Either way they're looking at much cheaper electricity afterwards, plus payment for exported units through the Smart Export Guarantee.

We've also installed ground-mounted solar systems connected to outdoor fuse boards for businesses that want to offer free EV charging to their staff. It's a useful staff benefit, it cuts the firm's transport fuel costs, and because it's all running off solar it doesn't add anything to the electricity bill. More on this on our solar carports and workplace EV charging page.

Why flat roofs work well for commercial solar

Flat roofs give us flexibility that pitched roofs don't. We can angle the panels south regardless of which way the building faces, which is why retail units, warehouses and commercial properties with large flat roofs tend to generate plenty of energy through the day. Most flat roofs are sitting there doing nothing - turning them into a solar array typically pays back within a few years, and they keep producing for decades after that.

On smaller buildings, the same idea applies to flat roof solar on garages, extensions and outbuildings. Ashley still checks the roof structure, waterproofing, access and cable route in person, because those details decide whether the job is sensible.

Pitched roofs still work well too, particularly on factories, hotels (Premier Inns are a good example) and larger commercial buildings, which tend to have plenty of roof space. The main requirement is that you need to own the building rather than lease it, and ideally you're planning to keep the property long-term so you can see the full payback.

Ground-mounted systems are another option if you've got spare land, a grass verge or outdoor space available. They work particularly well for powering EV charging points for staff cars, or for supplementing a rooftop installation when the roof alone doesn't give you the capacity you want.

Which businesses see strong returns

Factories and manufacturing tend to benefit most because heavy machinery and production equipment mean a lot of electricity goes in. The more you're spending now, the faster the payback. Food businesses - bakeries, cafes, restaurants - are also particularly well-suited because of the kitchens and refrigeration; the £10,000/month Prestwich baker we mentioned could take most of that cost out with a properly sized commercial system.

Retail and hospitality with large roofs - hotels, shops, larger commercial properties - also see strong returns. Cold storage and temperature-controlled warehousing have particularly heavy electricity demands, which makes solar very profitable on those buildings. As a rule of thumb, the more you're currently spending on electricity, the faster solar pays back.

Off-grid commercial solar

For businesses in rural locations, or anywhere a grid connection is too expensive, we can design and install off-grid solar systems. These work well for mobile catering businesses (no diesel generator needed), remote offices, or agricultural operations. The main saving is the ongoing fuel cost for the generator that would otherwise be running. We've done several off-grid installations and can size the system to whatever the operation actually needs.

How the installation process works

When you get in touch, a qualified electrician comes out to assess the property and look at your electricity usage - not a salesperson working from a script. The advice you get is technical and honest about what will actually work, rather than what fits the sales pitch. We then put together design options showing the energy generation, cost savings and payback period based on your actual usage data. Most commercial clients get a few different options - flat roof only, pitched roof only, or a combined approach - with the financial breakdown for each one.

Installations are scheduled around your business operations to keep disruption down, and we coordinate timing with you. Once the install is done, we handle all the grid connection paperwork, provide the electrical certifications, and set up the Smart Export Guarantee arrangement so you can earn income from any excess generation. As MCS-certified installers, every install we do meets the standards required.

Financial benefits and payback

From the moment the system's commissioned, the electricity bill drops sharply. A commercial installation can cover a large share of daytime consumption, and we model the reduction and the payback from your own half-hourly figures. That's faster than domestic installations because commercial properties tend to use electricity during the day, when the panels are generating most.

Panels commonly carry warranties in the 25 to 30 year range, so there is a long stretch of much cheaper electricity once the payback is done. Solar-equipped commercial properties also tend to be more attractive to buyers and tenants, especially as energy efficiency becomes more of a factor in commercial property decisions.

What you need to qualify

The main thing is that you need to own the building. Solar on leased or rented properties doesn't work because you need long-term ownership for the payback to be worth it. You'll also need enough roof space or land - south-facing pitched roofs, flat roofs of any orientation, or ground space all work. The higher your current electricity bill, the better the return, and the longer you're planning to be in the property, the more sense it makes financially.

Coverage across Greater Manchester

Based in Prestwich, we work with businesses across Greater Manchester and the wider North West. We've installed commercial systems in Bolton, Bury, Chadderton, Crumpsall, Lees, Middleton, Oldham, Prestwich, Royton, Saddleworth, Shaw, Stockport, and Whitefield and surrounding areas.

Why work with us

As MCS-certified installers and an Octopus Energy Trusted Partner, we'll give you an honest answer about whether solar makes financial sense for your business. If the numbers don't stack up for you, we'll say so - we'd rather pass on a job than fit something that won't deliver the returns. We handle the work end-to-end: initial design, install, commissioning and aftercare.

Where we can, we work with local roofers, scaffolders and contractors on every project. Our Social Value Policy goes into more detail on this.

Get in touch for a free site survey and a financial breakdown for your business.