Business finance for solar & renewables installers

Why solar cash flow is bought before it is paid

Solar PV and renewables installation is materials-heavy and front-loaded. Panels, inverters, battery storage, mounting systems, cable and electrical components are bought ahead of and at the start of a job, often in volume to secure pricing and stock against supply lead times that can run for weeks. Installation crews, scaffold and access, and design and DNO/G99 paperwork all cost money while the system goes in. On commercial work the balance is then invoiced in arrears on trade terms; on grant-supported schemes — ECO, public-sector retrofit, decarbonisation funding — payment can lag completion and sign-off by some margin. So the installer pays for the kit and the labour first and is paid afterwards.

A growing order book makes the gap bigger, not smaller. Each confirmed install adds another tranche of stock and another crew-week of wages before its payment cycle completes, so scaling to meet a strong pipeline is exactly when cash is tightest.

Where the cash gets stuck

The strain is stock and labour running ahead of payment:

• Panel, inverter and battery stock. Bought ahead, often in volume for price and lead-time reasons, before the systems are installed and billed.
• Install labour and access. Crews, scaffold and electrical sign-off are paid as the work is done, before the customer or grant pays.
• Grant and commercial lag. Grant-scheme and commercial balances settle after completion and sign-off, so a busy install month is a busy month of receivables.

Battery and inverter supply lead times sharpen it — holding stock to keep installs moving ties up cash continuously.

What solar & renewables installers use funding for

Common uses include buying panel, inverter and battery stock to fulfil a confirmed pipeline, taking a volume or container deal from a distributor when the pricing and turnover justify it, funding install labour and access ahead of grant or commercial payment, and bridging the gap while commercial balances and grant claims settle. The aim is to fund stock and labour on work that is already won or strongly expected, scaling capacity to meet real demand. Test whether a volume buy pays back with the return on borrowing calculator.

What to weigh before borrowing

Tie funded stock to a pipeline you can evidence, so panels and batteries turn into installed, invoiced systems rather than sitting in the warehouse, and match repayments to when grant and commercial payments actually land rather than to install day. Keep credit control tight on commercial accounts and watch grant-scheme paperwork, since sign-off drives payment timing. Watch concentration where one scheme or client dominates. Ask for the total repayable, not just a rate; read how to calculate affordability and consider invoice finance against commercial receivables. This is general information, not advice on your accounts.

How short-term company finance fits — no personal guarantee

Credicorp lends to the limited company, not to you personally — no personal guarantee, so your home is not pledged against the facility. As an exempt business lender it provides working capital to UK companies, not regulated consumer credit. A business loan or the flexible Credicorp Flex line gives an installer a controlled pot to buy stock and fund labour ahead of payment — repaid as commercial balances and grant claims come through. You can apply online.