A North London builder with 40 years behind them
JPF Clarke Construction has been building across North London for more than 40 years. Conversions, renovations, extensions, new builds. When you have been trusted with people's homes and premises for four decades, the advice you give carries weight. So when one of JPF's clients was staring at a punishing electricity bill, JPF didn't want to hand them a fashionable idea and hope it worked. They wanted a solar partner who would put real numbers on the table and stand behind them. Their power bill had become an overhead they could no longer absorb.
An electricity bill that repeated, year after year
A five-figure annual electricity bill is the kind of overhead that quietly eats a business alive. It doesn't go away. It goes up. For a commercial site pulling that much power, the grid isn't a supplier, it's a landlord you can never stop paying. JPF's client wanted out of that trap, and JPF's own name was on the recommendation. So the solar had to do more than look green in a brochure. It had to take a serious, visible bite out of that bill, and it had to actually deliver once it was on the roof.
A 14 kW system, sized to the bill
We designed a 14 kW system around the site's real demand, using high-wattage panels and a layout built to get the most out of the roof it had. Nothing oversized to pad an invoice, nothing undersized to win on price. We ran the job end to end so JPF could hand their client a clean result and keep their own reputation intact.
- 33 × 425W panels (about 14 kW total), chosen for output on the space available
- System design tuned to a heavy commercial load, so the panels earn while the site is working
- Delivered by Solar4Good for JPF Clarke's client, site visit through to commissioning
The bill, down by three fifths
The client's annual electricity bill dropped by 60%, a cut that repeats for as long as the panels are on the roof. JPF got the outcome they'd promised their client, and their client got a running cost they can finally plan around instead of dread. Over the system’s 25-year life that is roughly £52,000 to £70,000, on an install that typically pays for itself in five to six years.
Generation and saving figures on this page are estimates, modelled from the system size and a typical UK yield. They are not meter readings. Your own figures depend on your roof, your usage and the weather in any given year, and we confirm them from a real assessment rather than a model.














