Kelgray House strengthens its energy production to 70% self-produced, project complete in 8 days

Overview

Kelgray House approached DW Energy during a growth period - as the business expanded and invested in additional printing machinery, electricity demand became an even greater consideration.

DW Energy installed a 53.9 kW DC solar PV system with 46.4 kWh of battery storage, helping Kelgray generate, store and use more of its own electricity on site, with the full installation completed in just 8 days.

The challenge

Kelgray operates a busy commercial premises with energy intensive printing equipment. As the business continued to grow, the team wanted to offset increasing electricity usage without disrupting day to day operations.

The project needed to be delivered quickly, safely and with minimal impact on the running of the business. The system also had to be designed around real commercial usage, so that as much solar energy as possible could be used on site.

The solution

DW Energy installed a commercial solar PV system supported by battery storage.

The solar array generates electricity during the day, while the battery helps Kelgray make better use of that generation beyond peak sunlight hours. This reduces the amount of electricity imported from the grid and gives the business more control over its energy use.

With a projected annual generation of 56,600 kWh, the system was designed to make a meaningful contribution to Kelgray’s electricity demand.

The result

Since the system went live, Kelgray has already seen strong performance from its investment.

By May 2026, the array achieved:

• Electricity savings: £21,405.09
• CO₂ saved: 71.35 tonnes
• Equivalent trees planted: 1,177
• Standard coal saved: 35.79 tonnes

Return on investment

Kelgray’s system was projected to deliver a 769.7% ROI, with a discounted payback period of 3.26 years.

In practical terms, that means the system is forecast to pay for itself in just over 3 years and 3 months. After that point, the electricity generated continues to support the business by reducing energy spend over the long term.

The projected net present value of the system is over £600,000, showing the long term commercial value of investing in solar alongside battery storage.

Client testimonial

As our business has grown and we have invested in additional printing machinery, rising electricity costs became something we wanted to get ahead of. DW Energy gave us clear advice and designed a solar and battery system that suited the way our site operates.

The installation was completed in just eight days and the team were excellent throughout. They kept everything on track, worked neatly and made sure the project was delivered without disrupting our operations.

We are already seeing the benefit of generating and storing more of our own electricity on site, and we’re now over 70% self-sufficient. DW Energy delivered on time, on budget and the standard of work was impeccable - we could not recommend them highly enough!

Outcome

Kelgray’s system shows how commercial solar can support a growing business in a very practical way - as new machinery increased demand across the site, the solar PV and battery storage system helped reduce grid dependence, improve energy control and deliver measurable savings within the first two years of operation.

With a forecast payback of just over 3 years, the project gives Kelgray both immediate savings and long term energy resilience as the business continues to grow.

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