Commercial Solar Manchester: Why Your Roof Might Be the Best Asset You're Not Using

Commercial Solar Manchester: Why Your Roof Might Be the Best Asset You're Not Using

I've been doing this for the best part of twenty years now. Solar, electrical work, commercial energy projects. And in all that time, a couple of names in property have always been worth keeping an eye on.

Knight Frank is one. Peel is the other.

I'm Nottingham born, Sheffield raised and Manchester matured. These days I live in Bolton, so it's Warburtons in our bred bin and nothing else . Either way, when you've spent this long around the North West, it's hard not to notice Peel. You drive past MediaCityUK, you look down the Ship Canal towards Port Salford, you think about the ports and the land and the warehouses, and the engineer in me can't help doing the maths. Some of those roofs are absolutely enormous. That's a lot of sky going to waste.

To be clear, we've never worked with Knight Frank or Peel directly. I've just admired what they do from the sidelines for a long time, and I'd have loved to be in the room on some of it.

At the other end of the scale, some of my favourite years were spent on council housing and public buildings. Leeds, Portsmouth, Middlesbrough, Gravesham, down into Wales. Rows of houses, schools, community buildings. Smaller roofs, tighter budgets, very different people around the table. Honestly, it was great fun, and it taught me more about getting a project right than any textbook ever did.

Big portfolio or small terrace, the question was always the same one. How do we make this building work harder for the people paying the bills?

That's why a piece of research from Knight Frank last month made me sit up.

What Knight Frank is seeing in commercial property

In September, Knight Frank published research by Flora Harley on solar, storage and what they're calling the rise of "bring your own power". The headline number is a big one. Annual installations of commercial-scale solar, systems between 10kW and 5MW, reached about 350MW in the year to June 2026. Back in 2021 it was 67MW. That's more than five times as much in five years.

They also went through a decade of planning applications. Since 2021, solar or batteries now show up in around 18% of industrial and logistics applications, up from about 13% before that. For data centres it's around 26%.

What I like about the piece is the framing. Knight Frank describes property owners moving from being energy consumers to energy managers. That's exactly it. Solar isn't the green bolt-on you add at the end to tick a box anymore. It's becoming part of how a building is valued, financed and let.

Credit to Knight Frank for putting the numbers on the table. It's the kind of research the market needs, and it backs up what we've been seeing on site for a while now.

What we've seen on commercial roofs up and down the country

We've personally deployed commercial solar on buildings all over the UK. On the right sites, with the right design, we've seen it take 20 to 30 percent off electricity bills. In some sectors, where the building runs hard through the daylight hours, we've seen better than that.

But the bit that still gets me excited is what happens to the roof itself.

For decades, a warehouse roof had one job. Keep the rain off the stock. Now that same roof can generate hundreds of thousands of kilowatt-hours over the life of a system. Pair it with a battery, plan for EV charging, think about selling power to a tenant or exporting what you don't use, and the roof stops being a maintenance cost. It becomes an income-generating asset.

That changes the conversation. It's no longer "shall we stick some panels up?" It's "what is this building actually worth to us over the next twenty-five years?"

Greater Manchester is doing well, and there's more to come

There's plenty to cheer about on our own doorstep.

Peel has done some genuinely impressive work across infrastructure, ports and real estate, and it's been investing in cleaner energy and EV charging for years. When you look at the footprint they're working with across Salford, Trafford and the wider North West, you can see why I keep watching. The challenge is huge. So is the opportunity. If anyone can show what a regional property portfolio looks like when every suitable roof earns its keep, it's a business on that scale.

The public sector has been busy too. Greater Manchester set itself the target of being carbon neutral by 2038, and there's been real investment in solar and batteries on schools, leisure centres and public buildings to get there.

And the politics has got interesting. Andy Burnham has gone from Greater Manchester's mayor to Prime Minister, and Bev Craig has taken over the mayor's office. Whatever your politics, it'll be fascinating to watch whether the Manchester way of doing things finds its way into national energy policy, and what the new mayor does with the momentum that's already here.

So here's the question I keep coming back to. How many roofs across Trafford Park, Salford, Stockport, Bolton, Bury, Oldham and Rochdale are doing nothing today except keeping the weather out?

I'd love Greater Manchester to be the place that gets this properly right. Not solar for the sake of solar. Good projects that make financial sense, built well, that still work in twenty years.

The questions have changed

Twenty years ago, a client would ring up and ask whether they should put solar on the roof. That was the whole conversation.

Now the questions are better, and harder. How much will this building actually generate, and how much of that will we use ourselves? What does our half-hourly data say about when we use power? What will the DNO let us connect, and how much can we export? Does a battery pay for itself here, or is it a nice-to-have? What happens when we add EV charging, or electrify the heating, or the tenant changes? Can the roof structure even take it? And what is the real payback, not the brochure version?

Those are the right questions. They're also exactly why asking three installers for three prices usually gets you three completely different systems and no clear answer.

How we work: consultancy first

We're consultancy-led. Expert consultants first, always.

We're also fully independent. We're not pulled by any manufacturer, any make or any installer, in any direction. The kit and the design are chosen for your building and your business, and nothing else.

Before we recommend anything, we want to understand the building. That means your bills and half-hourly data, your maximum demand, the roof and its structure, the existing electrical infrastructure, what the grid connection will allow, and where your energy use is heading over the next five or ten years.

Sometimes the answer is a big solar array with a battery. Sometimes it's solar with no battery. Sometimes it's getting the electrical design right now so batteries and chargers can be added later without ripping anything out.

And sometimes the answer is no. We've told clients solar isn't for them. We've told others a battery isn't for them. We'll say no more than once, because the wrong system on the wrong building helps nobody.

When it is right, we deliver it. Installs go in through installers we've trusted for 26 years, and we stay on the job through commissioning and handover so what gets built is what got designed.

Not just a Manchester story

Independent Solar Consultants is a Manchester born and bred company, and a lot of our work is across Manchester and the North West. But we deploy nationwide.

Last week we were down in London looking at four sites in a day. More and more, we're being asked to look at portfolios rather than single buildings, and that's where it gets really interesting. Which roofs are best? Which buildings use the most power? Where are the easy grid connections? Which site should go first? Getting that order right is how you put capital where it does the most good.

As for us, Justin Dring and his small band of Independent Solar Consultants are genuinely excited to see what grows across the North of England over the next few years. And every now and again we'll keep driving down the M6 to London, to see what they're getting up to south of the river.

Thinking about commercial solar in Manchester, the North West, or further afield?

Whether you've got a warehouse in Trafford Park, offices in the city centre, an industrial unit somewhere across the North West, or you're reading this from a commercial building in central London, we'd be happy to take a look.

Send us your bills, tell us about the building, and we'll give you an honest, independent view of what should go on that roof. If the answer is "don't bother", we'll tell you that too.

Get in touch with Independent Solar Consultants: https://www.independent-solar-consultants.co.uk/contact

Justin Dring Founder, Independent Solar Consultants

Sources Knight Frank, "Solar, storage and the rise of bring your own power", Flora Harley, 7 September 2026: https://www.knightfrank.co.uk/research/article/2026/9/solar-storage-and-the-rise-of-bring-your-own-power Bev Craig elected Greater Manchester mayor, 31 July 2026: https://www.lbc.co.uk/politics/uk-politics/labour-win-greater-manchester-mayor-bev-craig-andy-burnham/