Exeter logistics warehouse solar: Sowton Industrial Estate (EX2 — M5 J29, Sainsbury's DC, Co-op regional warehouse, Travis Perkins), Marsh Barton trading estate (EX2 — 500+ businesses, mixed logistics and manufacturing), Matford Business Park (EX2). WPD G99: 5-7 months EX postcodes. Irradiance: 970-1,010 kWh/kWp/yr (South West advantage). Self-consumption logistics: 79-83%. Payback: 4-5 years. Devon Net Zero planning weight.
Local context — Exeter
Exeter logistics solar: Sowton M5 J29 cluster — Sainsbury's, Co-op, Travis Perkins. 970-1,010 kWh/kWp/yr South West irradiance. WPD 5-7 months G99. 79-83% self-consumption. 4-5 year payback — South West irradiance advantage vs Midlands equivalent.
Recent install — Exeter
A 600 kW solar install at Sowton Industrial Estate (EX2) regional distribution warehouse. WPD G99: 6 months. Self-consumption 81%. Annual saving: £129k at 27p/kWh South West tariff. Simple payback: 4.2 years. Devon County Council Net Zero planning support noted in planning notification.
Common questions — logistics warehouses in Exeter
What is the irradiance advantage of Exeter vs Midlands for commercial solar?
Exeter: 970-1,010 kWh/kWp/yr vs Birmingham: 940-970 kWh/kWp/yr. Approximately 3-7% more generation annually in Exeter. Over 25 years: £60k-£140k additional cumulative saving per MW installed. The South West irradiance advantage is structural and permanent — it compounds with tariff escalation over the project lifetime.