Installing solar panels can help businesses reduce electricity bills, gain more control over operating costs and lower carbon emissions. However, the initial investment can prevent an otherwise suitable project from moving forward.
This is why many business owners, facilities managers and finance teams search for commercial solar grants. Funding may be available, but there is no single UK grant that automatically covers every commercial solar panel installation.
Support is often linked to a business’s location, size, sector, property or expected energy savings. Alongside grants, companies may also consider capital allowances, asset finance, Power Purchase Agreements and payments for exporting renewable electricity.
This guide explains where to find solar panel grants, how funding works and what to prepare before applying.
Are There Commercial Solar Grants in the UK?
Yes, some eligible UK businesses can access commercial solar funding. Grants are often offered through local authorities, combined authorities, regional growth programmes and sector-specific schemes.
There is not usually one permanent nationwide programme available to every company. Funding depends on where the business is based, the type of organisation applying and whether the proposed work meets the scheme’s objectives.
A commercial grant may contribute towards solar photovoltaic panels, installation costs, battery storage, energy monitoring equipment, feasibility studies or wider energy efficiency improvements.
Most schemes cover only part of the project. The business may need to provide match funding and complete the work within a set period.
Where Can Businesses Find Grants for Solar Panel Installation?
Finding suitable funding usually requires checking national, regional and local sources.
Government grant databases
The GOV.UK Find a Grant service allows organisations to search current government funding and review application requirements.
Check the opening and closing dates, geographical limits, business-size restrictions and eligible project costs. You should also confirm whether batteries are included and whether work can begin before approval.
Ofgem also provides guidance on business energy efficiency grants and schemes that may help organisations reduce energy use and carbon emissions.
Local authorities and growth hubs
Many grants for solar panels are administered locally. Councils, combined authorities and business growth hubs may receive funding to help small and medium-sized businesses make energy efficiency improvements.
Local funding may be restricted to certain postcodes, sectors or project sizes. Some schemes require an energy audit or minimum carbon saving before an application can be considered.
Contact the local council’s business or sustainability team and ask about current or planned renewable energy funding.
Sector-specific funding
Farms, charities, schools, community organisations and public-sector bodies may have access to funding that is not available to ordinary private companies.
Agricultural businesses may find rural funding that supports renewable energy projects. Schools and public buildings may qualify for schemes aimed at reducing energy consumption across public estates.
How to Check Commercial Solar Funding in 2026
Funding information in this guide was reviewed in July 2026. Schemes can change, close or reach their funding limit, so availability must be checked before making a financial commitment.
Start by searching GOV.UK and reviewing Ofgem’s business energy guidance. Then contact the local council, combined authority or regional growth hub.
Once you identify a suitable scheme, confirm its deadline, funding limit, eligibility criteria and application sequence. Arrange a site-specific solar quotation only when you understand what evidence the funding provider requires.
Grant decisions are made by the relevant funding body. A solar installer can provide technical information and quotations, but cannot guarantee approval.
How Do Commercial Solar Grants Work?
A commercial solar grant normally covers a fixed amount or percentage of eligible project costs.
For example, a scheme may pay part of the solar panel installation cost while the business funds the remaining balance. Other programmes set minimum project values or maximum grant amounts.
Funding may be paid before work begins, released in stages or reimbursed after completion. Applicants may need to provide invoices, payment records, installation certificates and evidence of expected carbon savings.
One of the most important rules is timing. Many funding providers will not support projects that began before written approval. Paying a deposit, ordering equipment or signing a contract too early could make the application ineligible.
Can Businesses Get Free Solar Panels?
The phrase free solar panels often describes a no-upfront-cost agreement rather than a government grant.
Under a Power Purchase Agreement, a third party may fund, own and maintain the system. The business then buys the electricity generated on site at an agreed rate.
This can reduce the initial investment but creates a long-term contract. Businesses should check who owns the panels, the agreement length, electricity pricing, maintenance responsibilities and early termination charges.
It is also important to understand what happens if the building is sold or the lease ends. A no-upfront-cost agreement can suit some high-energy sites but is not the same as receiving free solar through government funding.
What Is Tax Relief on Solar Panels?
Businesses may be able to claim capital allowances on qualifying solar equipment, reducing taxable profits after the investment is made.
HMRC treats expenditure on solar panels as special-rate expenditure. Depending on the circumstances, equipment may qualify for the Annual Investment Allowance, the 50% first-year allowance or special-rate writing-down allowances.
Tax relief on solar panels is not a cash grant. It affects the business’s tax calculation rather than directly reducing the installation invoice.
The relief available can depend on the business structure, purchase date, financing method, equipment and allowances already claimed. Businesses should ask an accountant or tax adviser to confirm the current treatment before relying on tax savings within a project forecast.
Is the Smart Export Guarantee a Solar Grant?
No. The Smart Export Guarantee, or SEG, is a payment for eligible renewable electricity exported to the grid.
Electricity suppliers set their own export rates and contract terms. Businesses should compare tariffs rather than assume their current energy supplier offers the best arrangement.
Can Solar Panels Save You Money on Electricity Bills?
For many commercial properties, using solar power on site offers more value than exporting it. Offices, factories and warehouses operating during daylight hours may consume much of the electricity as it is generated.
Where demand and generation do not align, commercial battery storage can retain excess energy for use later, which can also reduce your carbon footprint.
What Are the Eligibility Criteria for Solar Panel Funding?
Each scheme has its own rules, but businesses are often required to operate within an eligible area and meet a defined company size.
Applicants may need to own the property or have written landlord consent. They may also need to provide match funding, complete the project before a deadline and show that work has not already begun.
Supporting evidence can include electricity bills, half-hourly consumption data, an Energy Performance Certificate, an energy audit, company accounts and expected carbon savings.
Businesses in leased premises should involve the landlord early. Roof rights, lease length and permission to alter the building or electrical system can affect whether an installation can proceed.
How Should a Business Prepare a Grant Application?
A strong application clearly explains what will be installed, why the project is needed and what measurable results it should provide.
Review electricity use
Gather at least 12 months of electricity bills. This provides a clearer picture of annual use, seasonal demand and current costs.
Half-hourly data can be useful for larger sites because it shows when electricity is consumed. This helps match the solar system to daytime demand.
Arrange a site assessment
A commercial solar assessment should review the roof condition, orientation, structural capacity, shading and available space. It should also consider the site’s electrical infrastructure, grid connection and potential battery storage requirements.
UCS Renewables can assess these factors when planning commercial solar solutions for offices, warehouses, industrial sites and other commercial buildings.
Prepare the financial case
The application should state the total project cost, funding requested and business contribution. It should also include forecast electricity generation, energy savings, carbon reductions and the expected payback period.
Use figures based on the property’s actual electricity consumption rather than general savings claims.
Follow the application process
Confirm the scheme is open and read its eligibility criteria before arranging surveys or quotations. Submit the required documents and wait for written approval before beginning work.
After installation, retain invoices, certificates and payment records for the final grant claim. Do not assume costs can be claimed retrospectively unless the scheme clearly permits this.
Can Solar Panel Grants Include Battery Storage?
Some grant programmes include battery storage as part of a wider solar project. Others fund only the solar photovoltaic system or exclude batteries from eligible costs.
A battery may help when a business generates more solar electricity than it can use during the day. Stored power can then be used later, reducing reliance on the grid.
However, storage is not necessary for every site. A business with steady daytime demand may already use most of its solar generation directly.
The proposal should compare solar panels alone with solar panels and batteries. It should also consider export income and any planned increase in electricity demand.
What Other Solar Panel Funding Options Are Available?
A lack of grant funding does not always mean a suitable project must be delayed.
Buying the system outright gives the business control of the equipment and generated electricity, although it requires more capital at the start.
Asset finance spreads the cost over an agreed period. Expected savings may help offset repayments, but calculations should include finance charges and realistic generation forecasts.
Green business loans may also be available from banks or specialist lenders. Businesses should compare interest rates, fees, security requirements and repayment terms.
A Power Purchase Agreement can reduce the upfront cost, with the organisation buying solar electricity from the system owner under a long-term contract.
Solar may also be planned alongside batteries, energy efficiency measures and commercial EV charging. Considering future charging requirements early can help the installer size the solar system and electrical infrastructure correctly.
What Should You Check Before Accepting Funding?
Before committing to a grant, loan or funded installation, confirm that the scheme is open and covers your location, business type and proposed work.
Check which costs are eligible, how much match funding is required and whether approval must be received before placing an order.
For finance or PPA agreements, establish who owns the equipment, what maintenance is included and what happens if the building is sold or the business moves.
Be cautious of any company that guarantees government funding without checking the site, business and published scheme rules.
Take the Next Step with a Commercial Solar Assessment
Commercial solar grants can reduce the upfront cost, but funding should support a technically and financially suitable project rather than determine the design.
Begin by reviewing the property, electricity demand and long-term plans. You can then compare available grants, tax allowances, finance and potential export payments.
UCS Renewables can assess your premises and provide the technical information needed to understand the installation cost, expected generation and possible commercial return.
When getting in touch, provide the site postcode, building type, recent electricity bills and whether the property is owned or leased. You should also mention plans for battery storage or EV charging.
Contact UCS Renewables to discuss your commercial solar project.
