Categories Renewables

Commercially: “we want to save money”

This is an extract from a BBC article b y Dave Harvey (published 18th May):

Rise in solar panel sales as people ‘want to save money’

“It’s all about saving money now, not just sustainability.”

Those are the words of the founder of a solar power firm who sums up the shift in the industry neatly. Ben Harrison’s Gloucestershire company has installed 65% more solar panels for businesses since the Iran war started, and energy bills soared.

Across the UK, the total amount of solar power installed has risen 11% compared to last year, according to government figures. For companies, the maths is simple.

In Somerset, the makers of the Henry vacuum cleaner have just spent £1.5m on new solar panels at their Chard factory. The financial director said he will get his money back “in less than four years”.

On a sunny day, this field of solar panels will power the whole factory behind it making vacuum cleaners in Chard, Somerset.

Fly low over a typical industrial estate and you’ll see plenty of solar panels on factory rooftops. But at the huge Numatic plant in Chard, they have gone to a new level.

They have just filled a whole field behind the factory.

There are 1,200 people working here, making Henry, the famous little red vacuum cleaner, and his pink friend Henrietta.

They make everything except the motors on site, from scratch. Moulding their own plastic and automated robotic production sucks power like, well a vacuum cleaner.

“Electricity is hugely expensive,” says Steve Whitlock, the firm’s financial director.

He is proudly showing me the brand new field of solar panels, 2,672 in all.

Until recently, it would be sustainability managers promoting this kind of work. But today, a solar installation costing £1.5m is “a major investment, like any other”, according to Whitlock.

“We need electricity to manufacture our products, and with the price going up and up, this solar field has given us a step change to generate our own electricity, and not rely on the market,” he added.

On sunny days, the new system will power the whole plant. Across the year, they project it will average about a quarter.

But further investments in high-tech inverters and batteries will take them to about half their total energy needs.

Within four years, Whitlock calculates the solar system will have paid for itself.

And next time a global conflict pushes up the price of electricity, this factory will be more protected.

The Somerset solar field is unusually big, but it’s not unique.

Since the Russian invasion of Ukraine first caused energy prices to soar, many firms have looked at solar power as an investment, not just a green initiative.

Now the war in Iran has pushed energy bills up again, and companies worry about what else might happen in the future.

Government figures revealed a big increase in March 2026, with 27,000 new solar installations in total. That is the highest since 2012, and pushed the total number of solar systems to over two million.

Official statistics do not separate solar power on commercial buildings from residential installations. But because companies use power in the daytime, while the sun is out, they stand to save a lot more than domestic customers, whose main use is in the morning and evening.

Chris Hewett, CEO of the trade body Solar Energy UK, said the south-west had seen the biggest increase in the country in solar panels installed by companies.

He believes solar power is the “quickest and most effective” way for business to cut energy bills.

The solar panels on this wine warehouse in Gloucester will provide 42% of its power

High on a warehouse rooftop in Gloucester, Ben Harrison spells it out starkly for me.

He started Mypower, his solar installation firm, 15 years ago.

“In the early days it was mainly about sustainability,” he said.

“Now it’s all about money. Customers are all about controlling their long-term electricity costs, as prices of energy have gone up.”

Over the last three months, his firm has installed 1,783 solar panels per month, 65% more than the average over the rest of the year.

Beneath him, the wine warehouse buzzes with activity.

Forklifts whirr along, pallets laden with red, white and fizz.

Automated conveyor belts shuttle boxes of wine along to a massive pallet wrapper, like a giant cling film dispenser twirling the pallets around ready for shipment.

It all uses a huge amount of electricity. The day I visited it was cloudy, but the 1,710 panels were still powering the whole site, and selling some to the national grid on top.

Loreta Landray, of Laithwaite’s Wine, said it was a “fantastic day” when the panels were switched on

Loreta Landray, health and safety manager at Laithwaite’s Wine, who run the warehouse, said it was “fabulous” when the panels were switched on.

“The cost increase in energy has been phenomenal for the last five years, and it will help massively for the business going forward, when it comes to paying for electricity,” she added.

While many families struggle to keep up with rising energy bills, fueled by the war in Iran, companies are now deciding to spend big money to keep their future bills under control.

Categories Renewables

Your Roof is an Untapped Asset

Turning Space into Energy and Revenue

For many owners of commercial property and larger residential buildings across England, the roof has long been treated as a passive necessity, something that keeps the rain out and little more. But in today’s energy landscape, that same roof space represents one of the most underutilised financial and environmental assets available.

With rising electricity prices, ongoing grid uncertainty, and increasing pressure to decarbonise, solar photovoltaic (PV) systems are no longer a “green-thinking extra”, they’re a strategic investment.

And crucially, the economics are far more compelling than many property owners realise. For commercial buildings and high-end homes alike, unused space could be actively generating energy, reducing operational costs, and creating long-term financial value.

With the cutting edge solar technology we advise on and instal, what was once passive infrastructure can now deliver measurable returns, often saving tens, if not hundreds, of thousands of pounds over time.

The conversation is shifting from “Can we install solar?” to “Why wouldn’t we maximise the asset we already own?”

The hidden value sitting above your head

A typical commercial or large residential property roof, offers significant usable surface area. Even allowing for access, shading, and plant equipment, most roofs can accommodate substantial solar capacity.

As a rule of thumb:

  • For early feasibility / proposals in the South of the UK:
  • South‑facing: 1,050 kWh/kWp/year
  • East–West: 950 kWh/kWp/year (south facing would require more space between rear of module and front of next module due to shading from module in front)
  • Very conservative assumption: 1,000 kWh/kWp/year

Example: Medium Commercial Building

  • Roof space available: 500 m²
  • Usable for solar: ~400 m²
  • System size: ~~50 kWp (That would typically be ~100 × 500 W modules.)
  • Annual generation: ~@950kwh per m²: ~47,500 kWh (47.5 MWh)

That’s not just energy, it’s a hedge against future price volatility and a direct reduction in operating costs.

Turning generation into financial return

The real value of solar is self-generated power, displacing the uncertainties and high costs of grid electricity.

Current commercial electricity costs (Typical Range)

  • Grid electricity: £0.20–£0.35 per kWh (often higher under certain contracts)
  • Solar generation cost (levelised): ~£0.05–£0.10 per kWh

This creates an immediate margin of savings.

Example Savings

Using the 70 kWp system above:

  • Annual generation: 65,000 kWh
  • Self-consumption: 70% → 45,500 kWh used onsite
  • Grid price: £0.25/kWh

Annual savings

  • 45,500 × £0.25 = £11,375 per year

Excess energy (exported to the grid) can still generate income, typically:

  • Export rates: £0.05–£0.15 per kWh
  • Exported energy (~19,500 kWh): ~£1,000–£2,500 per year

Total annual benefit: ~£12,500–£14,000

Installation costs and payback – it’s shorter than expected

One of the most persistent myths is that solar takes decades to pay back. That may have been true in the past, but certainly not today.

Typical installed costs (Commercial Scale)

  • £700–£1,000 per kWp (depending on scale and complexity)

For a 70 kWp system:

  • Capital cost: ~£50,000–£70,000

Payback Period

With annual returns of ~£13,000:

  • Simple payback: ~4–6 years

Given system lifespans of 25–30 years, that leaves potentially two decades of low-cost electricity after payback.

Larger Roofs, Stronger Returns

The economics improve further at scale.

Example: Large Industrial Unit

  • Roof space: 2,000 m²
  • System size: ~300 kWp
  • Annual generation: ~270,000 kWh

Financials:

  • Installation: ~£210,000–£270,000
  • Annual savings & revenue: ~£50,000–£70,000
  • Payback: ~3.5–5 years

Larger systems benefit from:

  • Lower cost per kWp
  • Higher on-site consumption (especially for energy-intensive operations)
  • Greater protection against future price increases

Beyond the Numbers: Strategic Advantages

While the financial case alone is compelling, solar also delivers broader value:

  • Energy price stability: Long-term protection against volatile markets
  • Increased asset value: More attractive to tenants and investors
  • Regulatory readiness: Future-proofing against tightening carbon regulations
  • Sustainability credentials: Supporting ESG targets and reporting

Why many still miss the opportunity

Despite strong returns, adoption is often delayed due to:

  • Outdated assumptions about cost and payback
  • Lack of awareness of usable roof capacity
  • Perceived complexity of installation
  • Competing capital priorities

However, with financing options, power purchase agreements (PPAs), and falling technology costs, many of these barriers are now significantly reduced.

A simple way to think about it – Every square metre of unused roof is effectively:

  • Generating nothing … or:
  • Each square metre of a commercial flat‑roof solar installation typically generates ~110–120 kWh per year, equivalent to ~£28–30 per m² annually at 25p/kWh. ,
  • That’s £687.50–£750.00 per m² of potential value, often from space that currently delivers none..

The Bottom Line

Solar is no longer a speculative investment. For commercial and large residential property owners, it is a proven, cash-generating asset with:

  • Predictable returns
  • Short payback periods
  • Long operational life
  • With EVERYTHING done for you

The question is no longer “Does solar make sense?”
It’s “Why leave that value sitting unused?”

Learn and talk about money, by downloading our Solar Roof Value Report – HERE.