What it is

A paid piece of design work that answers one question: what should this building do, and in what order?

Most commercial enquiries start the other way round, with a technology already chosen and a quote requested. That works when the choice happens to be right. When it is not, you find out two years later from the bills. A feasibility study puts the analysis before the purchase, which is the cheap end of the process to get right.

How we do it

We start with your data, not your roof. Twelve months of half-hourly consumption shows when the building draws power, how flat the base load is, where the peaks sit and what they cost you under your current contract. Almost every sizing decision follows from that.

Then the building. A site visit covers the roof structure and orientation, shading, the plant space, the incoming supply, the switchgear, the spare electrical capacity and the routes a cable could take. This is where most of the constraints turn up.

Then each option on its own merits. Solar sized to the load. Storage sized to the peak that is actually worth shifting. Charging sized to the vehicles and the supply. Heating sized to the calculated heat loss. Each one costed, each one tested against your figures, and each one with its planning and network position stated.

Then the order. This is the part that saves the most money and is the most often skipped. If the switchgear has to change for the chargers, it should change before the solar is connected to it. If the car park is being dug up for ducting, the cable for a future phase goes in the same trench. If the roof needs work, it happens before the panels go on, not after.

What you get

A written report you own. It contains the figures, the assumptions each one rests on, the constraints we found, the approvals each option needs and how long they take, and a recommended sequence. Where a technology does not pay on your site, it says so and says why.

You can hand it to us to build, or to anyone else. It is written to be read by a finance director as well as by an installer.

Where it leads

Most studies end with a phased plan. Commercial solar first, because it usually has the shortest route to value on a daytime-load building. Battery storage once the export volume is known rather than guessed. Workplace EV charging timed around the Workplace Charging Scheme, whose funding is confirmed until 31 March 2027. Heat pumps when the heating plant is due for replacement, or sooner where the building is on oil or LPG.

Figures reviewed 20 September 2026.

Pros and cons

Pros

You get an answer built on your own half-hourly data, not on a salesman's assumptions
The report is yours, and you can take it to any installer you like
Finds the constraints early, whether that is the supply, the roof, the switchgear or the planning position
Sequences a multi-part project so the roof, the switchgear and the ground are each opened once
Tells you where a technology does not pay on your site, which is worth knowing before you buy it

Cons

It is a paid piece of work with a fee, separate from any installation
The answer may be that part of what you hoped for is not worth doing
We need data from you, chiefly half-hourly consumption and your current supply contract
A feasibility study is not a planning application or a network connection offer, though it tells you what those will involve

Who it suits

Businesses weighing solar, storage, EV charging and heat pumps and unsure which comes first
Owners who have had quotes that do not agree with each other and want an independent read
Multi-site operators wanting one method applied across a portfolio
Landlords and developers deciding what to build in before a fit-out
Anyone whose last three enquiries came back with three different system sizes

What is included in a Bespoke installation

A site visit covering the roof, the plant space, the incoming supply, the switchgear and the cable routes
Analysis of twelve months of half-hourly consumption data and your current supply contract
Sizing for each technology under consideration, driven by your load profile
The planning and network connection position for each option, with the timescales they carry
A phasing plan where more than one thing is happening, so the works do not fight each other
A written report with the figures, the assumptions behind them and what we would do in your position

Frequently asked questions

What do we get at the end?

A written report. It sets out what your building can take, what each option would cost, what each would be worth on your own consumption and tariff, the planning and connection position, and a recommended order of work. Every figure shows the assumption behind it, so you can test it or take it elsewhere.

Do we have to use you for the installation?

No. The report is yours and it is written to be read by anyone. Plenty of clients use it to compare quotes from several installers, which is a reasonable thing to want.

What data do you need from us?

Twelve months of half-hourly consumption data, which your electricity supplier can provide on request, and a copy of your current supply contract. Where the project involves heating, we also want the current fuel bills. Without the half-hourly data any sizing is guesswork.

Can you look at more than one site?

Yes. Where a business has several buildings, the useful output is usually a ranking. Which sites repay the work first, which need fabric or supply work before anything else, and which are not worth doing at all. That is a better use of a budget than treating each site as a separate enquiry.

Is a feasibility study the same as planning permission?

No. The study tells you which approvals your project needs, what they cover and roughly how long they take, such as the 56 days a council has to determine prior approval for solar above 50 kW. Making the applications is separate work, which we can do as part of an installation.