Commercial solar panel installers in Caerphilly
Caerphilly is the principal commercial town of the South Wales valleys immediately north of Cardiff - Pontygwindy Industrial Estate carries the mature light-manufacturing footprint (General Dynamics UK's Oakdale Business Park facility is a substantial defence-electronics anchor within the wider coverage arc), Crossways Business Park delivers the newer speculative light-industrial stock, and the CF83 postcode carries dense A470 corridor SME and Cardiff-hinterland services activity. NGED's Caerphilly 33 kV holds meaningful post-industrial headroom.

Is your Caerphilly site a fit for commercial solar?
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Best-fit sectors in Caerphilly
- General Dynamics UK Oakdale defence-electronics (Caerphilly hinterland)
- Pontygwindy Industrial Estate light manufacturing
- Crossways Business Park speculative light-industrial
- A470 corridor Cardiff-hinterland SME cluster
Solar yield
Areas we cover near Caerphilly
Ystrad Mynach · Nelson · Llanbradach · Bedwas · Machen · Senghenydd · Blackwood (edge)
Postcodes: CF83
Funding for Caerphilly businesses
Run the numbers for your Caerphilly site
Commercial solar by sector in Caerphilly
Based on the dominant industries across Caerphilly, these are the commercial solar specialisms most relevant locally - with the typical site profile for each.
Factories & Manufacturing solar in Caerphilly
Heavy daytime load and process heat - fast payback on industrial roofs. In Caerphilly that means general dynamics uk oakdale defence-electronics (caerphilly hinterland) and pontygwindy industrial estate light manufacturing and crossways business park speculative light-industrial - sites we survey regularly across CF83 and the surrounding Wales patch.
- Typical system size
- 300 kWp - 1.5 MWp
- Typical payback
- 3 - 4 years
- On-site self-consumption
- 80 - 95%
Indicative figures for well-matched UK sites - your feasibility review models your actual roof, demand and tariff.
See the full factories & manufacturing guide →Commercial Landlords solar in Caerphilly
MEES/EPC uplift, green-lease premiums and tenant resale of power. In Caerphilly that means crossways business park speculative light-industrial and a470 corridor cardiff-hinterland sme cluster - sites we survey regularly across CF83 and the surrounding Wales patch.
- Typical system size
- 50 - 500 kWp per building
- Typical payback
- 5 - 7 years
- On-site self-consumption
- varies by tenant mix
Indicative figures for well-matched UK sites - your feasibility review models your actual roof, demand and tariff.
See the full commercial landlords guide →Commercial solar in Caerphilly - FAQs
Does General Dynamics UK Oakdale's Scope-3 framework flow to CF83 tier-2 suppliers?
Yes - General Dynamics UK publishes SBTi-aligned Scope-1 and 2 targets and cascades supplier-level Scope-3 evidence requirements to its defence-electronics, precision-machining and services tier-2 suppliers across the Caerphilly / Blackwood coverage arc. On-site PV with G99 acceptance is a directly-reportable Scope-1/2 lever within the GDUK supplier scorecard, and it stacks favourably with MOD DIO supplier-decarbonisation frameworks.
Is CF83 valleys-community-fund grant funding available for PV?
Sometimes - the Caerphilly Community Regeneration Fund and Welsh Government Green Growth Wales instruments periodically fund community-adjacent commercial decarbonisation projects across the CF83 valleys footprint. These are lumpy and time-limited but can stack meaningfully with SMART Cymru and the UK-wide AIA on eligible SME projects.
How does NGED handle CF83 G99?
Caerphilly retains meaningful post-industrial headroom on the 33 kV feeders serving Pontygwindy and Crossways - sub-500 kWp G99 with export limitation typically clears in 8–12 weeks, and 1 MWp+ remains deliverable subject to network study. The A470 corridor primary at Ystrad Mynach carries additional headroom.
Is South Wales valleys irradiance viable for commercial payback?
Yes - CF83 delivers around 950–990 kWh per kWp per year, in the strong South Wales irradiance band, and valleys-topography orientation is usually manageable through mounting-angle optimisation. 6–8 year paybacks are typical on well-sized Pontygwindy and Crossways arrays.
How wide is Caerphilly coverage?
Ystrad Mynach, Nelson, Llanbradach, Bedwas, Machen, Senghenydd and Blackwood are day-one visits; Cardiff, Newport, Pontypridd, Merthyr Tydfil and Abergavenny are on planned survey days from the CF83 base.
Caerphilly is part of our Wales commercial solar service area. See the Wales regional guide →
Ready to see whether your roof could reduce your energy bills?
Explore related pages
- Commercial solar in CaerphillyRegional funding, yield and coverage.
- Commercial solar in CardiffNearby in Wales.
- Commercial solar in NewportNearby in Wales.
- Commercial solar in SwanseaNearby in Wales.
- Solar potential by postcodeSee local solar yield for your business postcode.
- Commercial solar cost guideIndicative UK prices per kWp and what drives them.
