Commercial solar panel installers in Caernarfon
Caernarfon anchors north-west Gwynedd - the Cibyn industrial estate hosts the town's main SME manufacturing base, the Menai Strait supports a small but capable marine-engineering and mussel-aquaculture cluster, and the surrounding Snowdonia tourism operators (hotels, activity centres, adventure-tourism sites) drive a distinctive year-round electrical demand shaped by heating loads and hot water rather than heavy process electricity. LL54 / LL55 sit in the north-Wales tier where mid-summer yields track closer to the Midlands than the Scottish average.

Is your Caernarfon site a fit for commercial solar?
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Best-fit sectors in Caernarfon
- Cibyn industrial estate SME manufacturing
- Menai marine engineering & aquaculture
- Snowdonia tourism, hotels & activity centres
- Public sector & Welsh-language creative economy
Solar yield
Areas we cover near Caernarfon
Bontnewydd · Y Felinheli · Bethel · Waunfawr · Llanberis-edge · Penygroes · Dinas Dinlle
Postcodes: LL54, LL55
Funding for Caernarfon businesses
Run the numbers for your Caernarfon site
Commercial solar by sector in Caernarfon
Based on the dominant industries across Caernarfon, these are the commercial solar specialisms most relevant locally - with the typical site profile for each.
Factories & Manufacturing solar in Caernarfon
Heavy daytime load and process heat - fast payback on industrial roofs. In Caernarfon that means cibyn industrial estate sme manufacturing and menai marine engineering & aquaculture - sites we survey regularly across LL54 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 Caernarfon
MEES/EPC uplift, green-lease premiums and tenant resale of power. In Caernarfon that means cibyn industrial estate sme manufacturing and public sector & welsh-language creative economy - sites we survey regularly across LL54 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 →Supermarkets & Retail solar in Caernarfon
Predictable trading-hours demand and multi-site rollouts. In Caernarfon that means snowdonia tourism, hotels & activity centres - sites we survey regularly across LL54 and the surrounding Wales patch.
- Typical system size
- 100 - 400 kWp
- Typical payback
- 4 - 5.5 years
- On-site self-consumption
- 75 - 90%
Indicative figures for well-matched UK sites - your feasibility review models your actual roof, demand and tariff.
See the full supermarkets & retail guide →Commercial solar in Caernarfon - FAQs
Do Snowdonia tourism operators actually benefit from rooftop PV?
Yes - the shift to heat-pump heating and EV-charging provision across hotels and activity centres has meaningfully raised year-round daytime electrical demand. PV self-consumption of 55–70% is typical, and the export supports Green Tourism / Cyfle Cymru sustainability credentials.
How does SP Manweb handle G99 across Gwynedd?
SP Manweb runs the LL area. Sub-300 kWp G99 applications with pre-modelled export limitation typically clear in 8–12 weeks. The A487 corridor grid has been supplemented by Wylfa-legacy 132 kV that leaves genuine headroom in most LL54 / LL55 primaries.
Is the north-Wales climate really viable for commercial PV?
Yes - north Wales sits comfortably in the 'north' irradiance band at 900–960 kWh/kWp/year, and Menai-Strait sites benefit from the coastal albedo. Actual yield across LL54 / LL55 tracks the Midlands average more closely than headline latitude suggests.
Does the Menai marine-engineering cluster suit PV?
Well - the workshops running compressed-air, welding and small-machining loads pull consistent daytime electricity. Self-consumption above 75% is standard, and marine-grade fixings handle Menai-Strait salt exposure without accelerated degradation.
How far into north Wales do you cover from Caernarfon?
Bontnewydd, Y Felinheli, Bethel, Waunfawr, Penygroes and Dinas Dinlle are day-one visits from the north-Wales team; Bangor, Bethesda, Porthmadog and the wider Llŷn Peninsula are on planned survey days.
Caernarfon 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 Gwynedd, WalesRegional 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.
