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City and County of Swansea

Solar and Electrical Contractors in Swansea

Copperopolis industrial heritage and Lower Swansea Valley reclamation

Postcodes
SA1
Local authority
City and County of Swansea
Drive from HQ
0 mi · 0 min
Solar yield
950 kWh/kWp
SA1 0 min from our Swansea base 950 kWh/kWp solar yield Commercial energy intensity: High Primary service area

Serving Swansea

Swansea is our home city and the base from which every FLD project is run. With a population of 251,304 at the 2021 census, it is the second city of Wales and the administrative seat of the City and County of Swansea. The local economy pivots around Swansea University, Morriston Hospital under Swansea Bay UHB, Admiral, the DVLA headquarters in Morriston, the City Council itself and Swansea City AFC.

The city carries one of the most dramatic industrial heritages in the United Kingdom. Nineteenth-century Swansea was known as Copperopolis, smelting over half of the world's copper at its peak, and the Lower Swansea Valley spent the twentieth century as the largest area of industrial dereliction in Europe before its phased reclamation. That legacy still shapes the commercial rooftop stock available today, concentrated at SA1 Waterfront, Swansea Enterprise Park in SA6 8QR, the Kingsway Innovation Corridor and Parc Tawe.

For domestic solar, the housing mix across the SA1 postcode ranges from Victorian maritime terraces through interwar semi-detached into the new marina-side apartments of Copr Bay. Landmarks include Swansea Marina, the Dylan Thomas Centre, Wind Street, the Swansea Arena which opened in 2022, and the rugby heritage that sits adjacent to Principality elsewhere in the region.

Regeneration activity remains intense through 2024 to 2026. Copr Bay Phase 2 is driving further city-centre redevelopment, the Kingsway is subject to district heat-network proposals, and the Swansea University Bay Campus continues its expansion programme. Each of those schemes produces exactly the kind of large, south-facing or flat rooftop that commercial solar thrives on.

At 950 kWh/kWp per year according to PVGIS irradiation data, Swansea delivers the baseline South Wales yield. That translates to a 100 kWp commercial system generating 95,000 kWh annually, with year-one benefit of approximately £24,000 at prevailing commercial tariffs and a simple payback around 3.5 years, dropping closer to 2.6 years once Annual Investment Allowance full-expensing is applied.

We have worked in every corner of the city, from the sea front through the Uplands and across the valley. Swansea is where our directly-employed engineers live, which means response times on the core service here are measured in hours rather than days.

Commercial sites and business parks

High energy intensity

SA1 Waterfront

Swansea Enterprise Park

SA6 8QR

Kingsway Innovation Corridor

Parc Tawe

Commercial solar estimate — Swansea

100 kWp reference system at 950 kWh/kWp

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

95,000
kWh/yr
Annual generation
£22,458
per year
Annual saving
3.8
years
Simple payback
2.8
years (AIA)
Post-tax payback
Indicative only. Based on PVGIS irradiance data for Swansea. Actual figures depend on roof orientation, shading and tariff. Request a detailed survey.
Domestic solar

Housing stock in Swansea

Victorian maritime terraces, interwar semis, modern marina apartments

A typical 4 kWp domestic install here generates 3,800 kWh/yr. With 40% self-consumption at 30p/kWh and 60% SEG export at 15p/kWh, first-year saving is approximately £798.

950
kWh/kWp/yr
PVGIS irradiance

Local landmarks and context

  • Swansea Marina
  • Dylan Thomas Centre
  • Wind Street
  • Swansea Arena

Major employers we work with

  • Swansea University
  • Morriston Hospital
  • Admiral
  • DVLA Morriston
  • Swansea Council
  • Swansea City AFC

Recent local developments

  • Copr Bay Phase 2
  • Kingsway district heat-network
  • Bay Campus expansion
From the blog

Guides for Swansea

Commercial EV charging Swansea: workplace charger installation across SA postcodes

Commercial EV charger installation for Swansea businesses -- workplace charging for SA1 to SA7 employers, OZEV grant eligibility, load management and pairing with rooftop solar.

5 min
Read

Commercial solar Swansea Enterprise Park: SA6 and SA7 industrial rooftop economics and EV fleet charging

Rooftop solar payback analysis for Swansea Enterprise Park SA6, Fforestfach SA5 and Llansamlet SA7, with EV fleet charging integration and Ynni Cymru grant routes.

5 min
Read

Battery storage for Swansea homes: sizing, payback and EV charging across SA postcodes

A practical guide to pairing solar with battery storage across Swansea's SA postcodes -- sizing models, evening-peak arbitrage, EV charging integration and SP Manweb G98 timelines.

5 min
Read

Is Swansea sunny enough for solar panels to make sense?

PVGIS data, real Swansea yield figures, and why South Wales is a better solar market than most homeowners and businesses assume.

4 min
Read
FAQ

FAQs for Swansea

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.
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.
We specify SolarEdge inverters with Trina Vertex or JA Solar DeepBlue panels as our standard stack. SolarEdge string optimisers give panel-level monitoring and isolate shading losses. Trina and JA are both tier-1 bankable manufacturers with 25 to 30-year performance warranties. For specific projects we can specify alternative tier-1 brands if building, warranty or finance requirements dictate.
Yes, depending on organisation type. Welsh SMEs and public bodies can access the Welsh Government Energy Service, Ynni Cymru Capital Grants (approximately £10 m in 2026-27, £25,000 to £1 m per project) and Development Bank of Wales Green Business Loans. Welsh public-sector bodies use Salix Wales Funding Programme rather than the English Public Sector Decarbonisation Scheme. Farms may be eligible under Farming Connect. Always check current-year terms before committing.

Ready for a fixed-price quotation?

Speak to Paul directly. Most quotes turn around within five working days of a site survey.

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