What are business solar panels
Business solar panels, also known as commercial solar panels, use photovoltaic technology to turn sunlight into electricity for your business premises.
The electricity generated can be used on site to power your day-to-day operations. Any excess energy can either be stored in batteries or exported back to the national grid.
Solar panels can be installed on many types of commercial buildings, including offices, warehouses, factories, shops, farms, and schools.
Why more UK businesses are choosing solar
Lower Energy Bills
By generating your own electricity, you buy less power from your supplier. For businesses with higher daytime energy use, this can make a noticeable difference to monthly bills.
More predictable energy costs
Solar panels help reduce exposure to fluctuating energy prices. Once installed, the cost of generating electricity is far more stable, making it easier to plan ahead.
Earn from excess electricity
Using renewable energy helps lower carbon emissions and supports sustainability goals. For many businesses, this is also an important factor for customers, clients, and investors.
How business solar panels work
Solar panels generate electricity when daylight hits the panels. This electricity is produced as direct current and converted into usable alternating current by an inverter.
Your business uses this electricity first. Any unused energy can then be stored or exported.
Solar panels still work in cloudy conditions, which makes them well suited to the UK climate.
How much do business solar panels cost in the UK
The cost of business solar panels varies depending on system size, roof space, and energy usage.
As a rough guide:
- Small systems around 10 kW usually cost £13,000 to £15,000
- Medium systems around 20 kW typically range from £16,000 to £30,000
- Larger systems of 50 kW or more can cost £33,000 to £60,000 or more
Larger systems often work out cheaper per kW, making them more cost-effective for businesses with higher energy demand.
How long is the payback period
Most UK businesses see a return on investment within four to six years, depending on how much electricity they use on site and whether they export excess power.
Solar panels usually last 25 years or more, meaning businesses can benefit from lower energy costs long after the system has paid for itself.
Grants, incentives and tax benefits
While older schemes like the Feed-in Tariff are no longer available, there are still financial benefits to installing business solar panels.
Smart Export Guarantee
Businesses can receive payments for surplus electricity exported back to the grid.
Tax relief
Solar panel installations may qualify for tax relief through the Annual Investment Allowance or full expensing, helping reduce the upfront cost.
Industry-specific funding
Some sectors may be eligible for grants or funding depending on location and project type.
Planning permission and installation
Most roof-mounted commercial solar panels do not require planning permission. However, listed buildings or properties in conservation areas may need approval.
Installation times vary depending on system size, but many projects are completed within days. A site survey is usually carried out first to assess roof suitability and expected performance.
Maintenance and lifespan
Solar panels are low maintenance. Occasional cleaning and system checks help keep everything running efficiently, while inverters may need replacing during the system’s lifetime.
Most panels come with long warranties, making solar a reliable long-term investment.
Is solar a good fit for your business
Business solar panels tend to work best if:
- You use electricity mainly during the day
- You have suitable roof or land space
- You want more control over long-term energy costs
- Sustainability is important to your business
Every business is different, so costs and savings can vary.
Compare business solar panel quotes
If you’re considering solar panels for your business, comparing quotes can help you understand costs, system sizes, and potential savings, without committing to anything upfront.
Taking a few minutes to compare options can give you a clearer picture of whether solar is right for your business and what it might cost.
Get a better idea of costs and savings by comparing commercial solar options.
FAQs
For many UK businesses, solar panels are worth considering. They can help reduce electricity bills, provide more predictable energy costs, and improve environmental credentials. Businesses that use most of their electricity during the day often see the greatest benefit, as they can use more of the energy they generate on site.
While savings vary depending on system size and usage, many businesses find solar panels pay for themselves over time and continue to deliver value for years after.
The cost of business solar panels depends on factors such as system size, roof space, and energy demand.
As a general guide, smaller systems can start from around £13,000, while larger commercial installations may cost £30,000 or more. Although the upfront cost can feel significant, many businesses find that long-term energy savings help offset the initial investment.
Comparing quotes can give a clearer picture of costs for your specific building and usage.
Most UK businesses see a payback period of around four to six years. This depends on how much electricity the business uses, how much is generated on site, and whether excess energy is exported back to the grid.
Once the system has paid for itself, the electricity generated can significantly reduce ongoing energy costs for the remainder of the system’s lifespan.
Yes. If your business solar panels generate more electricity than you use, the surplus can usually be exported back to the national grid through a Smart Export Guarantee tariff.
The rate paid for exported electricity varies by energy supplier, and not all suppliers offer the same tariffs. Exporting excess energy can help improve the overall return on your solar investment.
No. Comparing business solar panel quotes does not commit you to installing a system. It simply allows you to understand potential costs, system sizes, and savings based on your business and building.
Many businesses use comparisons as a way to explore their options before deciding whether solar is right for them.