Grants and funding for solar panels for manufacturing

Funding solar for a UK manufacturing site: the realistic picture

Most manufacturers expect to find a single headline grant that pays for a solar array. The honest position is that the biggest financial lever is not a grant at all: it is the tax treatment of the capital expenditure, combined with the way most projects are actually financed. Grants exist and are worth pursuing on the right sites, but they tend to sit on top of a business case that already stands up on its own. This page sets out the funding routes that genuinely apply to UK manufacturing solar PV, then compares them in the table below. Because scheme detail changes with government policy, we point you to gov.uk for current figures rather than quoting numbers that go stale.

Capital allowances: the biggest lever

For a company paying corporation tax, solar PV qualifies as plant and machinery. The Annual Investment Allowance lets you write off the first £1 million of qualifying expenditure at 100 percent in the year you spend it, and full expensing can apply to qualifying plant and machinery above that cap. In practice this means most manufacturing installs are fully expensed in year one, delivering a meaningful reduction in your corporation tax bill against the cost of the system. Expenditure above the AIA cap may attract a first-year allowance depending on prevailing policy, so confirm the current rate with your accountant and check the capital allowances guidance for the position that applies in your accounting period.

VAT reclaim

If your business is VAT-registered, the VAT charged on the installation is normally recoverable as input tax in the ordinary way, because the system generates electricity used in your taxable manufacturing activity. That is a cash-flow benefit rather than a grant, but on a six or seven-figure project it is not trivial. Speak to your finance team about the timing of the reclaim so it lines up with your capital appraisal.

Grant funding for energy-intensive sites

The Industrial Energy Transformation Fund supports energy efficiency, deep decarbonisation and feasibility studies at UK industrial sites in eligible SIC codes, which covers most manufacturing. It runs through periodic competition windows and is aimed at larger projects rather than small installs, so it is often combined with private finance for the balance. Energy-intensive sectors may also hold a Climate Change Agreement, which gives a Climate Change Levy discount in exchange for energy-efficiency commitments. On-site solar reduces your metered grid consumption, which directly improves your performance against a CCA target. Check whether your sector, site and the current window apply before you rely on either.

Export income and financing

Surplus electricity you do not consume can earn money under the Smart Export Guarantee, available to MCS-certified installs, with the tariff set by your supplier. For a manufacturing site the priority is always self-consumption, so treat export as a secondary value stream rather than the reason to build. Finally, financing is how most sites fund a project in practice. A power purchase agreement delivers solar with zero capital outlay, and asset finance spreads the cost over several years while keeping the asset on your balance sheet, typically without competing against your production-line budget. We model each route against a cash purchase so your finance team can compare like for like.

Every site is different, so the right combination of allowances, reclaim, grants and finance depends on your tax position, sector and load profile. See our full cost breakdown for how these routes affect payback, or request a quote and we will map the funding options to your project.