Commercial Solar Finance Quotes, Every Route Compared

Funding is the real decision, not whether solar works

For most UK businesses the question is no longer whether commercial solar pays, it is how to pay for it. The same 150 kWp rooftop system can be bought outright, financed on hire purchase, funded through asset finance or an operating lease, or installed at zero capital cost under a Power Purchase Agreement, and every route produces a completely different cashflow, tax position and lifetime return. Buying outright keeps every unit of saving, all export income and all the tax relief, so it delivers the highest lifetime return. A PPA hands ownership to a funder and you simply buy the power, so it removes the capital barrier but gives the lowest lifetime return. Hire purchase, asset finance and a green loan sit in between, spreading the cost while you keep ownership and the allowances. The right answer depends on your cash position, your tax profile and how long you will hold the site.

Straight answers on tax, because most sites get this wrong

Solar PV is special-rate plant for capital allowances, so it does not qualify for the headline 100% full expensing, which applies to main-rate assets only. What it does qualify for is the Annual Investment Allowance, which gives 100% first-year tax relief on qualifying spend up to one million pounds and therefore covers the whole cost of most commercial installs. Above that cap a company can use the 50% special-rate first-year allowance, with the balance written down at 6% a year. If you are VAT-registered you reclaim the 20% VAT through your normal return, so it is a cashflow timing item rather than a net cost. And in England, qualifying rooftop solar for self-consumption is 100% exempt from business rates until March 2035, so going solar does not raise your rateable value. These points change the real net cost of every route, which is why our quotes model them in rather than quoting a sticker price. Tax treatment depends on your circumstances, so always confirm your position with your accountant.

Why self-consumption drives the numbers

The single biggest lever on commercial solar economics is how much of the generated electricity you use on site. A unit consumed on site displaces grid import at roughly 26 to 32 pence, while a unit exported earns only the Smart Export Guarantee rate of around 12 to 16 pence, so a self-consumed unit is worth more than double an exported one. Businesses with strong daytime demand, such as warehouses, factories, offices and cold stores, self-consume 50 to 80% of what they generate and see paybacks of roughly four to seven years before tax relief, or nearer three to five after it. That same demand profile is what makes a financed system cash-flow positive from year one, because the annual saving comfortably exceeds the annual finance or PPA payment. Our quote engine takes your electricity spend and consumption pattern and shows that net figure explicitly for each funding route, so you can compare on evidence rather than on a salesperson's promise.