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Caerphilly CBC

Commercial Solar and Electrical in Caerphilly

Defence-industry cluster with tight Scope 3 and secure-supply-chain reporting obligations

Postcodes
CF82, CF83
Local authority
Caerphilly CBC
Drive from HQ
47 mi · 60 min
Solar yield
945 kWh/kWp
CF82, CF83 60 min from our Swansea base 945 kWh/kWp solar yield Commercial energy intensity: High

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 intensity

Oakdale Business Park

Bedwas House Industrial Estate

Commercial solar estimate — Caerphilly

100 kWp reference system at 945 kWh/kWp

Modelled at 27p/kWh blended import, 15p/kWh SEG export, 72% self-consumption for high energy intensity site.

94,500
kWh/yr
Annual generation
£22,340
per year
Annual saving
3.8
years
Simple payback
2.9
years (AIA)
Post-tax payback
Indicative only. Based on PVGIS irradiance data for Caerphilly. Actual figures depend on roof orientation, shading and tariff. Request a detailed survey.
Domestic solar

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 15p/kWh, first-year saving is approximately £794.

945
kWh/kWp/yr
PVGIS irradiance

Local landmarks and context

  • Caerphilly Castle
  • Caerphilly cheese heritage

Major employers we work with

  • Caerphilly CBC
  • General Dynamics UK Oakdale
  • Continental Teves Ystrad Mynach

Recent local developments

  • Oakdale regeneration
  • GDUK Land Systems contracts
From the blog

Guides for Caerphilly

Location GuidesCaerphilly

Commercial solar Caerphilly: CF83 Oakdale, defence supply chain and Caerphilly County Borough estate

Commercial solar for Caerphilly CF83 -- Oakdale industrial estate payback models, defence and aerospace supply chain context, Caerphilly County Borough Salix Wales opportunity and NGED G99 timelines.

4 min
Read
Location GuidesCaerphilly

Domestic solar Caerphilly: CF83 housing, Bedwas commuter belt and Energlyn new-build guide

Domestic solar economics for Caerphilly CF83 -- Bedwas and Trethomas semi-detached payback, Energlyn solar-ready new-build integration, Senghenydd valley terraces and SolarEdge specification.

4 min
Read
Location GuidesCaerphilly

Commercial solar Caerphilly: Oakdale defence cluster, General Dynamics and the CF83 Scope 3 procurement chain

Defence-industry commercial solar at Oakdale Business Park, Caerphilly's General Dynamics and Continental Teves supply chain, and payback models for CF82 and CF83.

5 min
Read
Sector guides

Commercial solar sectors near Caerphilly

Sector Guides

Commercial solar for South Wales offices: PPA structures, green lease obligations and 9am--5pm self-consumption

How South Wales office occupiers and landlords are using commercial solar to reduce energy costs and meet green lease obligations -- with PPA vs outright purchase analysis, 65% daytime self-consumption models and EPC compliance context.

5 min
Read
Sector Guides

Commercial solar for South Wales factories: Tata supply chain, ESOS compliance and AIA payback

How South Wales manufacturers are using commercial solar to cut electricity costs, meet ESOS Phase 4 obligations and satisfy Scope 3 reporting -- with payback worked examples from 250 kWp to 500 kWp.

5 min
Read
FAQ

FAQs for Caerphilly

At 30p/kWh grid electricity, a 100 kWp system generating 95,000 kWh/yr with 70% self-consumption delivers around £24,000 of year-one benefit against c. £85,000 capex, a 3.5-year simple payback. Under Annual Investment Allowance first-year 100% relief, post-tax payback is closer to 2.6 years. South Wales yields 940 to 985 kWh/kWp/year depending on postcode, comfortably enough for commercial solar to be cashflow positive from month one with a PPA.
A Power Purchase Agreement is a financing arrangement where we fund and install a rooftop solar system at no upfront cost. Your business buys the electricity the system generates at a fixed, RPI-indexed rate that is lower than your grid tariff. The PPA typically runs 10 to 25 years. At the end you can extend, buy out at a pre-agreed residual value, or have the system removed. It suits businesses that want immediate savings without capital outlay and that are credit-worthy with a stable site.
ConstructionLine is a UK pre-qualification scheme used by main contractors and public bodies. FLD holds ConstructionLine membership, meaning we have been vetted on health and safety, insurance, financial stability and references. That cuts procurement friction for tier-1 main contractors and for public-sector tenders.
G99 is the Engineering Recommendation governing how generation equipment connects to the UK distribution network. For commercial solar above 16 A per phase, you need G99 approval from your District Network Operator before export. In South Wales that is National Grid Electricity Distribution (NGED, formerly Western Power Distribution). Type A connections are the standard sub-1 MW route, typically 3 to 6 months in 2026.

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