Serving Caerphilly
Caerphilly town sits at the centre of Caerphilly County Borough Council, with a population near 41,000 and a wider CBC figure of over 175,000. Core employers include the Council itself, General Dynamics UK at Oakdale (delivering the Foxhound, Ajax and a wide range of defence electronics), and Continental Teves at Ystrad Mynach.
Commercial estate concentrates on Oakdale Business Park and Bedwas House Industrial Estate. The GDUK anchor at Oakdale is strategically important for FLD because defence-industry tenants operate under extraordinarily tight Scope 3 reporting obligations and secure-supply-chain procurement conditions. For many of those tenants, on-site generation is becoming an explicit procurement requirement rather than a discretionary ESG add-on.
Landmarks are dominated by Caerphilly Castle, the second-largest castle in Britain after Windsor and the largest concentric castle in Europe. The town also carries the heritage of Caerphilly cheese, with a growing food and drink sector built around that identity.
Oakdale regeneration and the GDUK Land Systems defence contract pipeline are driving sustained commercial demand through 2024 to 2026. General Dynamics is a credit-worthy counterparty for commercial solar PPA agreements, and the tenant mix on Oakdale Business Park includes both primes and a tail of specialist suppliers who increasingly need the same.
At 945 kWh/kWp PVGIS yield, a 150 kWp Oakdale tenant rooftop generates 141,750 kWh a year. With 80% self-consumption at 27p/kWh blended (defence industry single-shift daytime operation), first-year benefit is approximately £30,500. Simple payback 4.4 years on £135,000 capex, post-tax payback 3.2 years.
Drive time from Swansea is 60 minutes via the M4. For defence-industry clients we coordinate site visits with GDUK security protocols as part of the pre-survey scope. ConstructionLine accreditation supports the main-contractor framework tendering route that most Oakdale work flows through.
Commercial sites and business parks
High energy intensityOakdale Business Park
Bedwas House Industrial Estate
100 kWp reference system at 945 kWh/kWp
Modelled at 27p/kWh blended import, 12p/kWh SEG export, 72% self-consumption for high energy intensity site.
Housing stock in Caerphilly
Victorian and Edwardian terraces, interwar semis, modern estates
A typical 4 kWp domestic install here generates 3,780 kWh/yr. With 40% self-consumption at 30p/kWh and 60% SEG export at 12p/kWh, first-year saving is approximately £726.
Local landmarks and context
- Caerphilly Castle
- Caerphilly cheese heritage
Major employers we work with
- Caerphilly CBC
- General Dynamics UK Oakdale
- Continental Teves Ystrad Mynach
Looking after solar and electrical systems in Caerphilly
The jobs that keep bringing us back to Caerphilly tend to be maintenance and upgrades rather than first fits.
EV charger installation is the other upgrade that pairs with an existing array in Caerphilly — charging off your own generation rather than off the grid changes the arithmetic completely.
On commercial premises in Caerphilly, commercial LED lighting upgrades normally pays back faster than anything else on the building, and it cuts the load the solar has to cover in the first place.
Existing arrays around Caerphilly lose output quietly — soiling on the glass, a string that has dropped out, an inverter throwing a fault code nobody reads — so solar panel cleaning and O&M is usually the first thing worth booking on a system that is a few years old.
Where a Caerphilly system exports more than it uses, battery storage sized to the actual load is what turns that export back into self-consumption, which is worth roughly double what the export tariff pays.
We are 60 minutes from Caerphilly in normal traffic, which is why we can put an engineer on a fault the same week rather than the same month.
Recent local developments
- Oakdale regeneration
- GDUK Land Systems contracts
