Commercial Solar Power Solutions
Reduce your business energy costs and carbon footprint with government-supported solar installations.
Solar Solutions for UK Businesses
Transform your business energy consumption with commercial solar power installations. Access government funding and grants while reducing operational costs and improving sustainability.
Reduced Operating Costs
Cut your business energy costs by up to 70% with solar power, improving profitability and competitiveness.
Tax Benefits
Take advantage of tax incentives and accelerated depreciation for renewable energy investments.
ESG Compliance
Meet environmental targets and improve your company's ESG score with clean energy adoption.
Energy Independence
Protect your business from rising energy costs and supply uncertainties with on-site generation.
Available Commercial Funding
Smart Export Guarantee (SEG)
Generate additional income by selling excess electricity back to the grid.
- Available for systems up to 5MW
- Competitive rates from energy suppliers
- Additional revenue stream for your business
Capital Allowances
Claim tax relief on your solar installation through capital allowances.
- Super-deduction available until 2026
- Reduce your corporation tax bill
- Improve cash flow and ROI
Regional Growth Funding
Access regional grants and support for renewable energy projects.
- Location-specific funding available
- Support for SMEs
- Combined with other incentives
Sectors We Serve
Manufacturing
High energy users can significantly reduce operational costs with solar power.
Retail
Perfect for shopping centers and retail parks with large roof spaces.
Warehousing
Ideal for distribution centers with extensive roof area for maximum generation.
Office Buildings
Reduce overhead costs and improve building sustainability ratings.
Commercial Solar ROI Calculator
| System Size | Typical Cost | Annual Savings | Payback Period |
|---|---|---|---|
| 30kW | £25,000 - £30,000 | £3,500 - £4,500 | 6-8 years |
| 50kW | £40,000 - £45,000 | £6,000 - £7,000 | 5-7 years |
| 100kW | £75,000 - £85,000 | £12,000 - £14,000 | 5-6 years |
*Figures are indicative and may vary based on energy usage patterns, location, and system specification.
Check Your Eligibility
Why Choose Us?
- Commercial solar specialists
- Turnkey installation service
- Funding application support
- 25-year performance warranty
Transform Your Business Energy
Contact us today to discuss commercial solar solutions and available funding options.
Check EligibilityIs there a solar grant for businesses in the UK?
The honest answer: there is no single national grant that pays for commercial solar panels the way schemes like ECO4 fund domestic systems. ECO4, the Great British Insulation Scheme and the Home Upgrade Grant are all household schemes tied to a domestic occupant's benefits, income or property EPC. They cannot be used to fund solar on a factory, warehouse, office, farm building or rented commercial unit.
That does not mean a business is left with nothing. UK businesses fund solar through a different set of routes: tax relief on the capital cost, income from exported electricity, occasional regional or local-authority business support, and finance structures that remove the upfront outlay entirely. We are independent and supplier-neutral, so unlike installer or energy-company pages we will tell you plainly which of these is a genuine grant (almost none are) and which are tax incentives or commercial finance dressed up as "funding".
If you have seen a vendor advertise a "commercial solar grant", treat the specifics with caution and check them against the funding body directly. Headline figures, deadlines and eligibility bands change, and we never quote council-specific amounts we cannot verify.
The four real ways UK businesses fund commercial solar
Across the portfolio of options, four routes do the heavy lifting. Most businesses end up combining two or three of them rather than relying on a single "grant".
- Capital allowances and full expensing. Solar PV is plant and machinery, so the cost can attract tax relief. The Annual Investment Allowance lets many businesses write off qualifying spend in the year of purchase, and full expensing (100% first-year relief on qualifying main-rate plant for companies) replaced the earlier super-deduction. This reduces your corporation tax bill rather than handing over cash, so the value depends on your profits and tax position.
- Smart Export Guarantee (SEG). Licensed electricity suppliers pay for the surplus you export to the grid. It is income, not a grant, and turns a self-consumption system into a small revenue stream.
- Regional and local-authority business schemes. Some regions, combined authorities and councils run time-limited decarbonisation or growth grants for SMEs. Availability is patchy and changes often, so these are worth checking locally rather than assuming.
- Power Purchase Agreements (PPAs) and asset finance. A funder installs the panels at no upfront cost and you buy the power they generate (often below grid price), or you spread the cost via lease/loan. This is how many larger sites go solar with little or no capital outlay.
Always confirm tax treatment with your accountant and scheme eligibility with the funding body. We can run a free, no-obligation check to point you at the routes that actually fit your premises and ownership.
Why ECO4 and household grants don't apply to your business
It is worth being clear on why the well-known "free solar" schemes stop at the front door of a home. ECO4 (the Energy Company Obligation) is funded by an obligation placed on energy suppliers to improve domestic properties occupied by households who meet benefit or income criteria, typically with an EPC rating of D to G. The qualifying tests, LA Flex routes and EPC rules are all built around a person living in a home, not a trading business occupying commercial premises.
This catches people out in a few situations. A landlord with domestic tenants on qualifying benefits may be able to access household schemes for the dwelling, but a landlord of commercial units cannot. A mixed-use property (flat above a shop, for example) may qualify only for the residential portion. A farm or care home sits in its own category and is assessed on its specific use and ownership.
Because of this, the most valuable thing we can do for a business is stop you chasing a domestic grant that will never apply, and instead map the tax, export and finance routes that genuinely move the numbers. If part of your situation is residential, we will flag where a household scheme like ECO4 or the Home Upgrade Grant could still help.
How commercial solar funding routes compare
The table below sets out the realistic funding and financing routes for UK business solar, who they suit, and the honest catch with each. Figures are indicative and hedged; confirm current rules with the relevant body or your accountant before committing.
Most projects blend these: for example, full expensing to cut the tax bill, SEG income on surplus generation, and asset finance or a PPA to manage cash flow. The right mix depends on your tax position, how much of the generation you use on-site, and whether you want to own the system.
| Route | Type | Best for | The honest catch |
| Capital allowances / full expensing | Tax relief (not cash) | Profit-making companies buying the system outright | Value depends on your profits and tax position; confirm with your accountant |
| Smart Export Guarantee (SEG) | Export income | Sites that use most generation on-site and export the surplus | Income, not a grant; rates vary by supplier and tariff (GB; NI via supplier arrangements) |
| Regional / local-authority SME schemes | Occasional grant or loan | SMEs in areas running a current decarbonisation or growth scheme | Patchy, time-limited and area-specific; never assume a figure without checking |
| Power Purchase Agreement (PPA) | Third-party finance | Larger roofs wanting solar with no upfront capital | You buy the power for years; you don't own the system unless terms allow |
| Asset finance / leasing | Commercial finance | Businesses spreading cost while retaining ownership | Interest and fees add to lifetime cost; compare total payable |
Frequently asked questions
Can a business get an ECO4 grant for solar panels?
No. ECO4 is a domestic scheme funded through an obligation on energy suppliers to improve homes occupied by households meeting benefit or income criteria. It does not fund solar on commercial premises such as offices, warehouses, factories or shops. If you are a landlord with domestic tenants on qualifying benefits, the dwelling itself might qualify, but the commercial side of a business cannot use ECO4.
Are there any real solar grants for UK businesses in 2026?
There is no single national grant equivalent to the household schemes. Most business funding comes through tax relief (capital allowances and full expensing), income from the Smart Export Guarantee, and finance such as PPAs or asset leasing. Occasional regional, combined-authority or local-council SME decarbonisation grants do appear, but they are time-limited and vary by area, so they should be checked locally rather than assumed.
What is full expensing and how does it help with solar?
Full expensing lets qualifying companies claim 100% first-year tax relief on qualifying main-rate plant and machinery, which can include solar PV. It replaced the earlier super-deduction. It reduces your corporation tax bill rather than paying cash up front, so the benefit depends on your profits and tax position. Many businesses also use the Annual Investment Allowance. Always confirm the treatment for your specific spend with your accountant.
Can my business earn money from a Smart Export Guarantee?
Yes, in Great Britain licensed electricity suppliers pay for surplus electricity you export to the grid under the Smart Export Guarantee. It is export income rather than a grant, and rates differ between suppliers and tariffs. It works best alongside high on-site self-consumption, where you use most of the generation yourself and export the remainder. Northern Ireland uses supplier export arrangements rather than the formal SEG scheme.
How can a business install solar with no upfront cost?
A Power Purchase Agreement (PPA) lets a third party fund and install the system at no capital cost; you then buy the electricity it generates, often below grid price. Asset finance, leasing and commercial loans are alternatives that spread the cost over time. These remove or reduce the upfront outlay but mean you pay over the life of the system, so compare the total cost and ownership terms carefully before signing.
Businesses that fall outside domestic grant criteria often look at power purchase agreements instead, and PPA pricing for a 50kWp array is a sensible starting point for smaller commercial roofs.