Very polite gentlemen, professional and got the job done to a great standard in impressive time
Turn your roof into
Commercial solar generates hardest in the middle of the working day, which is exactly when most sites are drawing the most power. We model it against your half-hourly data before anyone talks about panels.
Start your enquiry
Find out how commercial solar could cut your bills
Commercial feasibility rests on how much of the generation your site would actually use, so we start with a few details about the building and your operating pattern. Half-hourly consumption data can follow once we’ve spoken.
Two Ways In
Start with the roof,
or do the whole site
Plenty of sites start with panels and add the rest later. That works, provided the first system is designed with the rest in mind — which is the part most installers skip.
The usual starting point for warehouses and industrial units.
Worth modelling if you run outside daylight hours.
Twelve months of half-hourly data is all we need to model it properly.
Why DW Solar
Why businesses choose us for commercial solar
A commercial array is a capital decision, and it gets signed off on numbers rather than enthusiasm. So we start with your half-hourly consumption and build the case from there — including the parts that make the case weaker, because you will find those out eventually anyway.
THE BUSINESS CASE
What commercial solar
does for the balance sheet
Site survey and feasibility modelling at no cost.
What Our Customers Say
We’ve been using DW Solar for our installs for many years!
Always reliable, always outstanding work and a great bunch of people to work with!
5* Service all round
Very smooth process from the initial contact to the scaffolding and installation, The installation was completed within a day and we was saving money instantly. I would recommend this company for solar panels and battery storage
Very tidy solar installation
By the team. Thank you.
Brands we fit
HOW IT WORKS
From consumption data
to commissioned array
No cost, and no commitment to go any further.
Questions
Commercial solar FAQs
The questions that come up on site surveys and in board papers. If yours isn’t here, ask — we’d rather answer it now than have it surface at sign-off.
Want the numbers for your site?
Site survey and feasibility modelling at no cost.
It shouldn’t. Most of the work happens on the roof, and the parts that affect the building — the connection into your switchgear and commissioning — are short and can be scheduled out of hours.
On live sites we work at weekends, overnight or in phases across units. We agree that programme at the survey, not on the first morning.
It depends on the structure as much as the area. We check the roof construction, its condition and whether it can carry the additional load before anything is designed, and we involve a structural engineer where the situation calls for it.
The other limit is your electricity supply and what your network operator will allow you to connect, which is often the binding constraint rather than the roof.
Usually you should re-roof first. An array is a twenty-five year asset, and taking it off and refitting it to replace the covering underneath costs far more than doing the two in the right order.
We’ll tell you if that’s the situation. It costs us an order in the short term and saves you a great deal in the long one.
For anything beyond a very small system, yes — a commercial array needs your network operator’s agreement before it can be connected, and that has to be applied for rather than simply notified.
We prepare and submit the application and keep you updated. Timescales vary considerably by region and by how much spare capacity your part of the network has, and we’ll give you a realistic expectation rather than an optimistic one.
Roof-mounted solar on many commercial buildings falls under permitted development, but the allowances are more limited than on houses and there are exceptions — listed buildings, conservation areas, some site types and anything above certain thresholds.
We check it as part of the survey and tell you if an application is needed.
Commercial solar can attract capital allowances, and there are reliefs that have applied to on-site renewable generation. What your business can actually claim depends on its circumstances and on the rules at the time you invest.
We’re electricians, not tax advisers, so we won’t quote you a figure. Ask your accountant — and if it helps, we’ll give them the equipment breakdown they need to answer properly.
Yes, and we design the original system so you can. Leaving headroom in the switchgear and planning the cable routes at the outset costs almost nothing; retrofitting around a system that ignored the possibility can cost a great deal.
It can be, but the lease term matters more than anything else. If the remaining term is comfortably longer than the payback period and your landlord will consent, the case can be strong.
You’ll need the landlord’s written agreement and clarity on what happens to the array at the end of the lease. We’ll tell you honestly if the numbers don’t work on the term you have left.
Find out what your roof could take off your bills
Send us twelve months of half-hourly data and we’ll model it properly. Site survey and feasibility at no cost.