Commercial solar in Caerphilly
Delivered work on the doorstep — rooftop solar at the Cwrt Rawlin Inn, Britannia House and Creditsafe's UK head office.
Indicative system size, savings and payback in under a minute. No sign-up.
Delivered in Caerphilly
Delivered in Caerphilly several times over — rooftop solar at the Cwrt Rawlin Inn under the Marston's programme, in-roof solar at Britannia House, home to the Welsh Innovation Centre for Enterprise, and dual EV charging at Creditsafe's UK head office.
Delivered without disruption. Operating. Measurably saving.
Figures from real Nuvolt installations — each one links to the project it came from.
The Caerphilly grid reality
South Wales sits in National Grid Electricity Distribution's licence area — the network operator formerly known as Western Power Distribution. Every commercial connection, capacity enquiry and G99 application here goes through NGED, and the position varies street by street rather than town by town.
The county borough runs from the northern edge of Cardiff up into the valleys, and the connection position changes markedly along it. The business parks around Caerphilly, Bedwas and Ystrad Mynach sit on a mix of supplies — some with genuine headroom, some where an older commercial unit is closer to its ceiling than its occupier realises.
For multi-tenanted buildings, which are common across the borough's office stock, there's a second question layered on top: how the building is metered, and therefore who can actually take the benefit of what's generated. That determines the commercial structure as much as the engineering does.
How we handle grid connections“We are thrilled with the new EV charging stations installed by Nuvolt at our UK office. The entire process from design to commissioning was seamless and aligns with our sustainability goals.”
Most people come to us for solar. Then we look at the whole site.
Solar is usually the first question, and it's rarely the whole answer. Before we size an array we look at what the site actually does — how it draws power, what the incoming supply can take, and what's coming in the next few years. That's what decides whether solar is worth 200 kWp or 800 kWp, and whether it should arrive on its own.
What your half-hourly data really says
Consumption data shows when you actually draw power, not when you assume you do. A site that runs hard overnight gets a different answer from one that peaks at midday — and that changes array size, export exposure and whether storage earns its place.
Whether your supply can take it
Available capacity at the incoming supply decides what can be connected without a reinforcement bill. It's the single most common reason a solar scheme gets re-scoped late, and the cheapest thing in the world to check early.
Storage, where it pays
Battery storage is not automatic. It earns its place when it shifts load off expensive periods, firms up resilience on a site that can't take an outage, or keeps generation on site instead of exporting it cheaply.
EV, before it's urgent
Fleet and staff charging almost always arrives after the solar. Designing the capacity headroom in now costs very little; retrofitting it into a site that's already at its limit costs a great deal.
One party accountable
We design, install, connect and maintain. When generation, storage, charging and the grid connection all sit with one contractor, nobody gets to point at somebody else when a commissioning date slips.
Funded, if you'd rather not spend capital
Capital purchase, PPA, asset finance or Energy-as-a-Service. The right structure depends on your balance sheet and how long you hold the site — not on what we'd prefer to sell.
What would your Caerphilly roof actually do?
System size, generation, savings and payback — modelled on your address in about a minute. No sign-up.
Welsh funding and policy context
Welsh Government policy under Net Zero Wales drives non-domestic decarbonisation harder than the equivalent English position, with Development Bank of Wales lending and Ynni Cymru funding both potentially relevant depending on ownership.
Non-domestic rates in Wales are set by Welsh Government. For landlords of multi-tenanted buildings — a recurring pattern across Caerphilly's commercial stock — the interaction between rating, service charge and a PPA or EaaS structure is worth working through before choosing a funding route.
Planning in Caerphilly
Caerphilly County Borough Council is the local planning authority. Rooftop solar on existing commercial buildings generally falls within permitted development, with the usual exceptions around listed buildings and conservation areas — and the castle setting brings its own sensitivities in the town centre.
In-roof systems, which we delivered at Britannia House, sit within the roof plane rather than above it and can be the better answer where visual impact is a live consideration.
A commercial site is not a big domestic install
| Typical installer | Nuvolt | |
|---|---|---|
| Grid connection | Treated as paperwork at the end of the job. | Checked at the start, because available capacity decides what's worth designing. |
| Sizing | Fill the roof, or fit the budget. | Sized to your half-hourly load profile, so generation is used on site rather than exported cheaply. |
| Operations | Scaffold goes up, you work around it. | Programmed around trading and production hours — the constraint we design to first. |
| Funding | One price, take it or leave it. | CapEx, PPA, asset finance and EaaS modelled side by side against your balance sheet. |
| Afterwards | Warranty paperwork and a phone number. | Monitoring against the yield model, with O&M and a team an hour away at most. |
Who we work with around Caerphilly
Serviced offices & flexible workspace
Multi-tenanted buildings where metering and lease structure decide what's possible.
Manufacturing
The Bedwas and Ystrad Mynach industrial base, with high daytime load.
Financial & professional services
Head-office operations with reporting obligations — as at Creditsafe.
Public sector & local government
Borough estate with carbon targets and constrained capital.
Areas we cover around Caerphilly
Caerphilly is a short run north from our base at St Mellons — one of the areas we work in most. If you're not on this list, ask — it isn't exhaustive.
How a Caerphilly project runs
- 01
Site and data review
Half-hourly consumption, roof or land survey, incoming supply capacity and constraints — before anything is sized.
- 02
Engineered design
System size, layout, structural and electrical design, yield modelling and a grid application route that reflects the real connection position.
- 03
Commercial structure
Capital purchase, PPA, asset finance or EaaS, modelled side by side so the numbers are comparable rather than pitched.
- 04
Delivery around operations
Programmed to your trading and production hours. On live commercial sites, disruption is the cost that doesn't appear on the quote.
- 05
Connection and commissioning
G99 application, DNO liaison, witness testing and energisation handled end to end.
- 06
Monitoring and O&M
Performance monitored against the model, with maintenance that keeps the asset generating what it was funded to generate.
Commercial solar in Caerphilly, answered
See what your Caerphilly site could generate
System size, annual generation, savings and payback — modelled on your address in about a minute. No sign-up, and no obligation to talk to anyone.
Not ready for numbers? Take the six-question opportunity check or talk to the team.
Let's have a strategic conversation about your energy position.
An assessment, a benchmark, a roadmap — whichever is most useful. A short conversation with engineers who run commercial energy every day, not a sales call.