Real Solar4Good install · North London
Case study · Commercial · Construction

60% cut off the bill, every single year.

A North London construction firm brought us in to tackle a client's punishing power bill. We took 60% off it.

14 kWSystem size
33425W panels
60%Bill cut
5-6 yrTypical payback
As featured in
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01
The client

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.

02
The challenge

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.

03
What we did

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.

Black solar panels going down on the flat roof at JPF Clarke Construction, between brick chimney stacks, with install materials still on the roof
The installed array on the roof.
  • 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
04
The results

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.

By the numbers
Financial
Bill cut60%
Typical payback5-6 years
The system
System size14 kW
Panels33
Panel rating425 W
The kit
33 × 425W panels
Solar panels · about 14 kW total
14 kW system
Sized to a heavy commercial load
Good to know

Common questions about commercial solar, and how they played out for JPF Clarke's client.

Can solar really make a dent in a big commercial bill?

Yes. A 14 kW system took 60% off this client's electricity bill, and a commercial system like it typically pays for itself in five to six years. Your number depends on how much power you use and the roof you have, so we model your site and show you the real figures before you commit to anything.

What does a commercial system like this cost?

We size and price every system to your roof and how you actually use power, so there's no single sticker price. What we will always do is put the maths in front of you. On this job the bill fell 60%, and a system like it typically pays for itself in five to six years. We'll show you the same kind of payback picture for your own bill rather than hide it behind a sales pitch.

Will the installation disrupt my business?

It doesn't have to. We run the whole job end to end, from site visit and design through to install and commissioning, and we schedule it around how your site operates. The aim is a system on the roof and a smaller bill, without your day grinding to a halt to get there.

The bottom line

A North London construction firm's client watched their electricity bill fall 60%, and it stays down for as long as the panels are on the roof.

Rated 4.9/5 from 1,000+ verified reviews on Trustpilot, TrustATrader and Google

“George the sales chap was straightforward and honest, and the whole installation team were awesome, courteous and professional throughout.”

Jamie Wilson · Verified Trustpilot review

“From start to finish the whole job has been seamless. The install guys were polite, knowledgeable and efficient.”

Timothy Clarke · Verified Trustpilot review

“I wholeheartedly recommend this company for solar and battery storage installation.”

Soham Acharya · Verified Trustpilot review

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