Bristol is the UK's strongest commercial solar market by combined irradiance and IETF eligibility — aerospace manufacturing and South West irradiance make an unbeatable combination.
Bristol solar economics
Irradiance 990-1,020 kWh/kWp/yr. Grid retail 22-23p/kWh. WPD G99: 5-7 months BS postcodes. Aerospace IETF payback: 2.5-4yr. Avonmouth port: 4.5-5.5yr. Cold chain: 4-5yr.
Airbus and aerospace IETF
Airbus UK Filton (BS34) — wings for all Airbus aircraft. Rolls-Royce Civil Aerospace, GKN Aerospace, Meggitt. IETF rates: composites 35-45%; CNC 30-40%; surface treatment 30-40%; casting 25-35%. Airbus Scope 3 programme requires verified renewable energy from all tier-1/tier-2 suppliers.
Avonmouth and M4/M5 logistics
Avonmouth Docks (BS11) and Severnside Enterprise Zone (BS35): 5-6 months G99 (Severn Valley reinforcement). Aztec West (BS32), Portbury Dock (BS20 — automotive import Scope 3 active).
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Bristol guide: /guides/warehouse-solar-bristol/. IETF guide: /guides/warehouse-solar-ietf-manufacturing/. Contact: /contact/.