The challenge
The client had previously received three survey visits from other contractors who could not agree on structural feasibility due to the mixed-age composite cladding on the portal frame. NGED export headroom on the Enterprise Park substation was also a concern, with reports of constrained capacity on the SA6 network.
Our solution
FLD commissioned an independent structural engineer's roof load assessment before any design work, confirming 18 kg/m2 dead load capacity on the main south pitch. We submitted a NGED G99 pre-application enquiry in parallel, confirming 250 kWp of export headroom at the relevant substation without export limiting. SolarEdge SE100K inverters with P505 optimisers were installed on 625 Trina Vertex S panels in a single-string configuration. The monitoring system was configured with Scope 3 carbon-reporting output for the client's supply-chain reporting obligations.
The result
G99 approval received in 11 weeks. Installation completed in 8 working days. Year-one generation 241,200 kWh against 237,500 kWh modelled — 1.6% above prediction. Client received Ynni Cymru capital grant of £35,000, reducing net capex to £180,000 and post-grant AIA payback to 2.1 years.
Three contractors walked away from this job. FLD got the structural and DNO checks done first and then delivered exactly on time. The Scope 3 reporting from the SolarEdge portal is now part of our quarterly Tata supply-chain submission.
Factory, warehouse and commercial rooftop solar from 30 kWp to 1 MW across Swansea, Cardiff, Newport, Pembrokeshire and the wider South Wales region.
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