Here’s the short answer if you’re wondering whether it’s worth it: investing in commercial solar installation in the UK through a reliable solar energy company can cut your electricity bills, reduce your carbon footprint, and even make you money from the grid, all while paying off the system in around five to ten years.
More and more UK businesses are getting serious about solar. Not just to be seen as “green,” but to take control of rising energy bills and lock in long-term savings. Whether you’re running a warehouse, a factory, or a chain of retail shops, commercial solar panels can turn your empty rooftop into something that actually makes money. And it’s not just the big companies. Small and medium-sized businesses are jumping in too. The price of solar panels for business has dropped, systems are more efficient than ever, and there’s now enough local support to make it all easier to manage.
How Commercial Solar Works
A commercial solar system includes the panels themselves, inverters (which convert solar energy into usable electricity), mounting gear to secure the system to your roof, and smart meters to monitor everything. The electricity you don’t use right away can be sold back to the grid, and that is where the Smart Export Guarantee comes in. A good system is designed to match how your business uses energy during the day. That way, you get the most savings possible from every ray of sunlight. You don’t need to be an expert in how solar tech works, that’s what your solar energy company is for. But choosing the right one makes all the difference.
Choosing the Right Solar Energy Company
Here’s what to look for: they should be properly certified (MCS is the standard in the UK), have experience installing commercial solar panels, be upfront with pricing, and offer clear support with things like maintenance, warranties, and future upgrades. Also, check if they’ve worked with businesses like yours before. If a commercial solar installer doesn’t take the time to understand your energy usage or roof layout, they’re not doing their job right.
Installation in the UK
When it comes to getting a system up and running in the UK, the process is smoother than most people expect. For rooftop installs, you usually don’t need planning permission unless the building is listed or in a conservation area. The company you hire should handle everything, from surveys and applications to connecting to the grid. Now let’s talk numbers. Here’s a rough guide to what a typical mid-size commercial solar installation might cost:
Component |
% of Total Cost |
Solar panels |
25% – 40% |
Inverters and electrics |
10% – 20% |
Mounting systems |
10% – 15% |
Labour and fitting |
15% – 20% |
Wiring and meters |
5% – 10% |
Of course, it’ll vary based on your building, your location, and how much energy you use, but that’s why getting a proper site assessment is key.
Grants and Incentives
While commercial solar panel grants have mostly dried up in the UK, there are still big savings available in other ways. The government has cut VAT to 0% on solar systems, and you can take advantage of things like the Smart Export Guarantee to sell unused power. There’s also the Annual Investment Allowance which means you could write off the full cost of your system against tax.
All these perks mean the average business sees a return on their solar investment within about 8 years. After that, most of the energy your system produces is basically free, aside from the occasional service or clean. Here’s a simple example. If you install a 100kW system that produces around 90,000 kWh per year and you use about 60% of that, you could save over £8,000 annually, plus make extra money by selling the rest. And those savings only grow as electricity prices go up.
Risks and Things to Watch
Of course, not everything is sunshine. Some buildings just aren’t suitable, maybe the roof is too weak or there’s too much shading. Maintenance is something people forget about too. A system that’s never cleaned or checked might not give you the savings you expect. Then there’s export limits, in some areas the local grid can’t handle too much extra power, so they limit what you can send back. That’s why a solid commercial solar installer is worth every penny, they’ll spot these issues early and plan around them.
Why Choose Excel Energy UK
This is where Excel Energy UK really shines. We’re not just box movers. We design every system around your business, how you operate, how you use energy, where your building is, and what your goals are. At Excel UK, we’ve installed systems for offices, warehouses, hotels, farms, and industrial plants. We’re fully certified, and we walk you through every part of the process, from site survey and design to installation and aftercare. No pushy sales, no hidden extras. Want to see how it works in practice? Click here excelenergy.co.uk to view real examples of our installations across the UK.
What to Do Next
There’s never been a better time to switch to commercial solar. It’s cleaner, cheaper, and smarter than staying stuck with the old system. Whether you’re running a factory, a shop, or an office, if you’ve got roof space, you’ve got potential. Let Excel Energy UK help you unlock it.