Solar Panels for Commercial Buildings

Solar panels represent a strategic investment for commercial buildings. Your expansive roof can support a solar panel system ranging from 75 to 100 kW, which can lower your electricity costs by up to 70%.

Installation costs typically fall between £1,000 and £3,000 per kilowatt, but UK government incentives can reduce these costs by about 30%.

Solar panels installed on a commercial building rooftop

Why Commercial Buildings Are Ideal for Solar

Save Up to 70% on Electricity

Commercial buildings consume most electricity during daylight hours — perfectly aligned with solar generation for maximum savings.

5–10 Year Payback Period

Installation costs between £1,000–£3,000 per kW, with government incentives reducing costs by about 30%.

Sell Surplus Energy Back

Through the Smart Export Guarantee (SEG), earn 5–12p per kWh for excess energy exported to the grid.

25+ Year Investment

Solar panels are designed to last over 25 years, providing a long-term sustainable energy solution for your business.

Solar panels enhance energy independence for businesses. Companies can reduce their reliance on the grid and shield themselves from unpredictable energy price hikes. With solar panels designed to last over 25 years, businesses make a long-term investment in a sustainable energy solution.

How Much Do Commercial Solar Panels Cost?

Businesses typically pay between £1,000 and £3,000 for each installed kilowatt. You can expect a payback period of 5 to 10 years, after which businesses save up to 70% on electricity bills.

Installation costs

Depend on your building's energy needs and system complexity. Larger systems or unique architectural features can increase costs.

Incentives & tax credits

Directly lower your initial outlay, potentially reducing costs by up to 30%. Research local programs to maximise savings.

Maintenance costs

Range from £200 to £500 annually. Regular maintenance ensures efficient operation and prolongs system lifespan.

How Many Solar Panels Does Your Business Need?

If your facility uses 100,000 kWh annually, you typically require a system rated between 75 and 100 kW — about 250 to 300 solar panels. Higher efficiency panels generate more electricity in less space, reducing the total number needed.

Higher efficiency panels generate more electricity in less space, reducing the total number of panels your business needs.

Review your utility bills to identify peak energy usage and seasonal variations. Factor in future growth and consider energy storage solutions to capture excess power during the day for use during peak demand. Working with a solar expert ensures a detailed energy analysis tailored to your specific needs.

Learn about commercial solar installation

Can You Sell Surplus Solar Energy Back to the Grid?

Yes — through the Smart Export Guarantee (SEG). Energy suppliers must pay you for the electricity you send back. You can earn between 5 to 12 pence per kWh for excess energy, adding a valuable revenue stream to your business.

Exporting excess energy also enhances your company's sustainability profile, showing your commitment to reducing environmental impact — increasingly important to customers and stakeholders.

Learn about the Smart Export Guarantee

Best Financing Options for Commercial Solar

Power Purchase Agreement (PPA)

Use solar energy without upfront costs, leading to immediate savings on electricity bills.

Solar Leasing

Avoid large capital expenditures while potentially providing tax benefits that bolster your financial position.

Government Incentives

Take advantage of subsidies that can significantly lower installation costs.

Smart Export Guarantee

Sell excess energy back to the grid, further increasing your return on investment.

How Long Does Commercial Solar Installation Take?

Installation typically takes a few days to several weeks, depending on system size and site conditions. Pre-installation consultations and design proposals add a few weeks as we perform energy assessments and site evaluations.

During installation, we work during off-peak hours to minimise disruption. Once installed, panels become operational immediately — though registering with local energy networks for export can add extra time. We recommend scheduling annual maintenance checks to ensure peak efficiency.

Do Commercial Solar Panels Require Much Maintenance?

Commercial solar panels require minimal maintenance — generally annual servicing to ensure peak performance. Technicians inspect electrical connections, check for debris buildup, and confirm no nearby structures cast shadows on panels.

Technicians inspect electrical connections, clear debris buildup, and confirm no shadows are reducing your solar panels' efficiency.

Most commercial systems come with warranties covering routine maintenance, significantly reducing out-of-pocket costs. With proper care, solar systems last over 25 years.

How Commercial Solar Supports Your CSR Goals

Solar panels significantly reduce your carbon footprint by converting sunlight into electricity, decreasing reliance on fossil fuels. Studies indicate that 70% of consumers prefer to support businesses that adopt eco-friendly practices.

Commercial solar installations lead to substantial cost savings, allowing you to allocate funds toward other CSR projects. It's a strategic choice that aligns with your overall sustainability goals.

Frequently Asked Questions

How much do commercial solar panels cost?

Businesses typically pay between £1,000 and £3,000 per installed kilowatt. With government incentives reducing costs by up to 30%, and a payback period of 5–10 years, businesses can save up to 70% on electricity bills after payback.

How many solar panels does a business need?

For a facility using 100,000 kWh annually, you typically need a 75–100 kW system, translating to about 250–300 solar panels. Higher efficiency panels can reduce the total number needed.

Can you sell surplus solar energy back to the grid?

Yes, through the Smart Export Guarantee (SEG). Energy suppliers must pay you for electricity you export, typically between 5–12p per kWh.

How long does commercial solar installation take?

Installation typically takes a few days to several weeks depending on system size and site conditions. Pre-installation consultations and design proposals add a few weeks to the overall timeline.

Do commercial solar panels require much maintenance?

Commercial solar panels require minimal maintenance — generally annual servicing at £200–£500 per year. Technicians inspect electrical connections, clear debris, and check for shading issues.

Get a Free Commercial Solar Survey

Free site survey and ROI analysis for your business. Our commercial team will assess your site and provide a detailed proposal with projected savings.