Cardiff offers the UK's most comprehensive public finance stack for commercial solar: Welsh Government Business Wales grants, IETF manufacturing support, Development Bank of Wales loan finance, and standard 100% AIA. Combined with WPD's reliable 5-7 month G99 connections and strong irradiance (960-1,000 kWh/kWp/yr), Cardiff warehouse solar delivers 4-5.5 year paybacks for logistics and 2.5-4 years for qualifying manufacturing.
Celsa Steel and the IETF steel model
Celsa Steel's Cardiff Bay electric arc furnace (EAF) received IETF Phase 3 funding at 40-50% — the highest confirmed IETF rate for Welsh steel manufacturing. Adjacent CF24 supply chain businesses qualify for 20-35% IETF. We assess IETF eligibility as part of free desk feasibility on all Cardiff manufacturing enquiries.
Welsh Government and Development Bank of Wales
Welsh Government Business Wales: SME audit grant up to £20k + 30-50% for recommended measures including solar PV. Development Bank of Wales (DBW): competitive commercial loan finance for SME decarbonisation, 5-15 year terms. These stack with IETF and AIA — the most comprehensive public finance combination of any UK city.
Wentloog — Cardiff's premium logistics zone
Wentloog Logistics Park (CF3) hosts Amazon, Lidl, DHL, Royal Mail — institutional SEGRO/Prologis ownership with standard BBP Green Lease addenda. Modern units 500 kW to 3 MW. WPD CF3 G99: 5-7 months. Self-consumption 78-82%. Logistics payback: 4.5-5.5 years. Cardiff City Council Net Zero 2030 programme adds planning weight to solar PV applications in CF3.
See more
Cardiff warehouse solar guide: /guides/warehouse-solar-cardiff/. Swansea industrial guide: /guides/warehouse-solar-swansea/. Contact for Welsh Government grant advice: /contact/.