Solar Panel Grants for UK Businesses: Eligibility, Funding and How to Apply

When electricity is a major business overhead, a grant towards solar can be an attractive option. It could help reduce the upfront investment and make it easier to move a project from consideration to installation. 

However, finding out which solar panel grants are available isn’t always straightforward. Business solar grants do exist in certain locations and circumstances, but eligibility isn’t guaranteed – and domestic funding schemes don’t apply to ordinary commercial premises. 

Before going any further, there are two important questions to consider: 

Are solar panel grants available to UK businesses? 

Some councils offer targeted grants, with restrictions on location, business size, eligible equipment and application dates. 

For example, Three Rivers District Council’s Solar PV and Battery Grant: 

Approved grants are paid after the project has been purchased and completed, so applicants must be able to fund the work before reimbursement. 

It’s always worth checking with your local authority whether the same or a similar level of support is available in your area. 

A published scheme isn’t necessarily accepting applications 

Things can change quickly, especially when public budgets are under pressure. Two examples show why it pays to check the current position: 

Start with your local authority or regional business support service, then check the named scheme’s official criteria. Don’t assume that an opportunity in England applies in Scotland, Wales or Northern Ireland, or that funding for a public building is available to a private company. 

Why “free solar panels” for a home don’t mean business funding 

The Warm Homes: Local Grant supports qualifying households in privately owned homes in England. Eligibility considers the property’s Energy Performance Certificate (EPC) alongside household income, benefits or postcode-based criteria. 

Solar panels can be among the improvements recommended following a home survey. But they aren’t automatically provided to every eligible household, and funding availability matters. 

Either way, this is domestic support – not a general grant for a factory, warehouse or farm building. Being eligible as a homeowner doesn’t entitle a business owner to funding for their commercial solar installation. 

How to apply for commercial solar panel funding 

There’s no single application form covering all business solar grants – each scheme sets its own process. The four checks below will help you establish what’s required before you spend any money. 

1. Confirm the applicant, premises and equipment are eligible 

Ask the scheme administrator to confirm whether your postcode, business structure, size and activity qualify. Establish who should apply – the business operating from the building, the building’s owner or another organisation. 

Check the equipment too. A renewable energy or energy efficiency scheme won’t necessarily cover every type of solar panel, battery or associated electrical work. And solar thermal funding relates to heat, not the electricity-generating solar PV systems covered here. 

Whether an advert describes a subsidy, rebate, incentive or “green funding programme”, ask for the official scheme name, eligibility rules and repayment conditions. The label alone tells you very little. 

2. Prepare a project that can be assessed properly 

Start by gathering your energy information: 

Your proposal should then show: 

Environmental and sustainability benefits should be quantified rather than simply asserted. 

For commercial rooftop solar, roof condition, structural suitability, shading and access also need consideration. Check what evidence of landlord consent, planning permission and grid arrangements the fund requires. 

If you’re proposing battery storage, show it separately. Its eligibility and financial contribution need checking in their own right – it shouldn’t be included simply because funding might be available. 

Finally, ask whether an approved energy audit, specific installer certification or competing quotations are required. Three Rivers, for example, asks for two installer quotes. A Power Different Solar Feasibility Analysis can inform the technical and commercial case, but it doesn’t replace a fund’s mandatory assessment or guarantee approval. 

3. Check the rules before ordering or paying a deposit 

Don’t assume that submitting an application gives you permission to start work. 

Grant conditions can exclude spending committed before an approved start date. Ask specifically whether you’re allowed to: 

Get the required written approval before taking any action that could make the project ineligible. 

Keep grant approval separate from planning, landlord consent and grid requirements. Securing one doesn’t automatically satisfy the others. 

4. Understand how the money is claimed 

Before accepting an offer, check: 

An award paid after completion reduces the eventual cost, but it doesn’t remove the need to finance the installation initially. Keep invoices, proof of payment and commissioning records in the format the administrator requires. 

How capital allowances work for commercial solar 

The Annual Investment Allowance can allow eligible businesses to deduct the full value of qualifying expenditure from profits before tax, within the available allowance. The standard annual limit is £1 million, shared with other qualifying investment rather than reserved for solar. 

That doesn’t mean the government reimburses the installation cost. For illustration, £80,000 of qualifying expenditure fully deducted at an assumed 25% tax rate would reduce tax by £20,000 – not provide an £80,000 refund. That assumes sufficient taxable profits and available allowance; the actual benefit and timing depend on the business. 

Our guide to tax incentives for commercial solar installations explains the distinctions in more detail. Your accountant should confirm the treatment, including how any grant affects qualifying expenditure. Don’t add tax savings and grant funding together without checking how they interact. 

Is VAT relief available on commercial solar? 

The temporary zero VAT rate for installing qualifying energy-saving materials applies to residential accommodation and certain charitable buildings, subject to the rules. It isn’t a general zero rate for ordinary commercial premises. 

The building’s use and the nature of the supply both matter. Ask your accountant or VAT adviser to confirm the rate and any recovery available, rather than copying a domestic solar saving into a business forecast. 

Solar finance and PPAs: other ways to manage the upfront cost 

A loan or green asset finance arrangement can spread expenditure over time, subject to approval and the lender’s terms. Repayments and interest must be included when comparing the cost with projected electricity savings. 

A power purchase agreement (PPA) works differently. A third party funds and owns the installation, and your business buys the electricity under an agreed contract. A qualifying project can therefore go ahead without upfront capital expenditure – but the electricity isn’t free, and the arrangement isn’t a government grant. 

Our commercial solar finance options explain these routes in more detail. Whichever you’re considering, look beyond the initial outlay and compare: 

Do export payments count as solar funding? 

The Smart Export Guarantee (SEG) enables eligible generators in Great Britain – not Northern Ireland – to receive supplier payments for electricity exported to the grid. Supplier terms, metering and eligibility requirements apply. It’s a payment for energy, not a contribution towards installation costs. 

Export income should be modelled separately from the saving you make by using solar electricity on site. The same unit can’t be counted as both an avoided electricity purchase and an export payment. 

Should you wait for a solar grant? 

A confirmed funding opportunity may justify waiting. An unannounced future scheme is a much less reliable basis for an investment decision. 

Ask for two comparisons: 

The second calculation should consider the electricity savings you’d forgo during the delay, alongside any changes in project costs or finance charges. It should also recognise that a grant might make an otherwise unaffordable project possible. 

Our Knowledge Hub provides practical guides, checklists and frameworks to help UK businesses cut energy costs, evaluate solar proposals with confidence and make a decision based on actual numbers. 

A grant should improve the investment, not hide its weaknesses 

Funding doesn’t make an unsuitable roof suitable, or guarantee that your business can use the electricity generated. Nor does it remove the need to budget for ongoing solar monitoring and maintenance. 

Start by establishing the right system, its full cost and realistic performance. Then compare the funding routes that genuinely apply. 

At Power Different, our Solar Feasibility Analysis uses actual energy data to compare system options, projected generation, costs and financial outcomes. Grant decisions remain with the fund administrator, and tax treatment should be confirmed with your adviser. Our role is to give you a properly considered technical and commercial case – not to promise grants that may never materialise. 

Power Different – solar energy built for business 

We design and deliver engineered commercial solar and battery storage systems for businesses that need reliable performance and clear financial outcomes. 

We don’t do rough estimates or off-the-shelf designs. Every system is built around your actual energy data. 

Our engineering-led approach means higher quality, better performance and systems built to last – because in solar, the detail is what makes the difference between a strong return and an expensive mistake. 

From feasibility through to installation and ongoing support, we manage the entire process, whether you’re looking for commercial rooftop solar, ground-mounted solar, battery energy storage solutions or an upgrade to your existing solar. 

Start with the numbers 

Our no-obligation Solar Feasibility Analysis gives you a clear, evidence-based view of whether solar stacks up for your business. 

Request your Solar Feasibility Analysis and understand the investment before committing to an installation. 

The funding information in this blog was checked and verified on October 30 2026. Scheme availability and eligibility can change; confirm the position with the fund administrator before committing to a project. 

Frequently asked questions about solar PV panel grants for businesses 

1. Can businesses get grants for solar PV installation? 

Yes, some businesses can access targeted or local grants, but funding isn’t an automatic entitlement. A scheme must cover your location, your business and your proposed installation, and still have funding available. Domestic solar grants shouldn’t be confused with commercial support. At Power Different, we start by establishing whether the system makes technical and financial sense – a potential grant should improve a properly considered investment, not be treated as money already secured. 

2. Who qualifies for solar panel grants? 

Each scheme sets its own eligibility criteria. Commercial schemes may consider your trading address, business size, premises, financial position and ability to contribute towards the project. Owning a business or having suitable roof space doesn’t automatically qualify you, and household schemes have separate residential requirements that don’t fund ordinary commercial premises. Before commissioning any application work, get confirmation that both your business and the proposed equipment qualify. 

3. Where should I look for local solar PV incentives? 

Good places to start are: 

Check the named fund administrator’s own information rather than relying on an installer’s advert or an old funding article. Ask whether applications are open, whether solar PV is eligible and whether funding remains available. Keep the funding search separate from evaluating the installation – you need to understand both the grant conditions and whether the proposed system is right for your business. 

4. How do I apply for a solar panel grant? 

Identify a suitable scheme, confirm you’re eligible and follow its application process, checking the required quotations, supporting documents and spending rules. Don’t order equipment, pay a deposit or start work until the administrator confirms what’s permitted and you have any required written approval. Our Solar Feasibility Analysis provides site-specific modelling of system options, costs and projected savings to support your project case, although it doesn’t replace a fund’s mandatory assessment or guarantee an award. 

5. What documents are needed to apply for grants? 

Requirements differ between schemes, so ask the administrator for their checklist before gathering paperwork. You may need: 

For the solar proposal itself, prepare electricity bills, consumption data and details of the premises. Modelling built on your actual energy data gives you a more credible basis for the investment than a panel count and a headline saving. 

6. Do solar panel grants cover all installation costs? 

Don’t assume so. Commercial grants can require a substantial business contribution and limit which costs qualify. Check the award cap and how VAT, surveys, scaffolding, roof repairs and electrical connection work are treated before calculating what you’ll still need to spend. Where upfront cost is the obstacle, we can also talk you through commercial finance and power purchase agreements. These are different funding arrangements, not grants – under a PPA, a third party owns the system and your business pays for the electricity under the contract. 

7. How long does it take to receive a solar grant? 

There’s no standard timeframe. Treat the application decision and the payment date separately: some business grants are paid only after the approved installation has been completed and paid for, so you may need to fund the work before claiming reimbursement. Ask the administrator for assessment times, completion deadlines and payment requirements, and plan your cashflow around confirmed terms rather than an assumed payment date. 

8. Can renters apply for solar panel grants? 

Commercial tenants may qualify where the scheme allows it, but landlord permission and the fund’s property requirements still apply. Some council schemes, for example, expressly accept applications involving rented commercial premises with written landlord consent. Before going ahead, establish who will apply, who will own the installation and what happens when the lease ends, and ask for the investment to be assessed against your remaining occupation period. Funding approval alone isn’t a reason to overlook the long-term arrangements for the roof and equipment. 

9. Are there government incentives for solar panels? 

Eligible businesses may benefit from: 

We keep projected electricity savings, export income and financing costs distinct, so you can see what actually contributes to the return. 

10. How are the benefits of solar PV panel grants calculated? 

Compare the full project cost and realistic returns, not just the grant amount. Your calculation should account for: 

Ask your accountant to confirm the tax treatment. Our Solar Feasibility Analysis models the investment around your actual energy use and tariffs. That helps you judge whether pursuing funding improves the overall outcome, rather than simply reducing the initial price.