Sector Analysis
Detailed analysis of solar PV benefits, financial returns, and regulatory context for UK commercial properties, by industry sector.
3–8 years
Typical payback period
55–85%
Self-consumption rates
20–55%
Energy cost reduction
25+ years
System lifespan
Large rooftops. Consistent daytime loads. Ideal solar economics.
Distribution centres and warehouses typically have the largest unobstructed roof areas of any commercial building type. With operational hours concentrated during daylight, solar generation aligns closely with demand, meaning high self-consumption rates and maximum bill reduction without battery storage.
System size
100–250 kWp
Annual savings
£25,000–£60,000
Self-consumption
75%
Payback
4–6 years
CO₂ reduction
25–60 tonnes/year
Electricity use
35 kWh/m²/year
£48,000
Annual savings for a typical 200 kWp warehouse installation
Energy-intensive operations benefit most from on-site generation.
Manufacturing facilities have the highest electricity consumption per square metre of any commercial sector. Production machinery, compressed air systems, and process cooling create substantial baseload demand throughout operating hours. Solar PV can offset a significant portion of this demand, with self-consumption rates often exceeding 85% due to continuous daytime operation.
System size
150–500 kWp
Annual savings
£35,000–£120,000
Self-consumption
85%
Payback
3–5 years
CO₂ reduction
35–120 tonnes/year
Electricity use
95 kWh/m²/year
85%
Average self-consumption rate for manufacturing facilities
Refrigeration, lighting, and HVAC create ideal demand profiles for solar.
Retail premises and supermarkets have high electricity demand driven by refrigeration, lighting, air conditioning, and point-of-sale systems. These loads operate throughout trading hours, which closely match solar generation periods. Supermarkets in particular have some of the highest electricity consumption per square metre in the commercial sector, making them excellent candidates for solar PV.
System size
50–150 kWp
Annual savings
£12,000–£35,000
Self-consumption
70%
Payback
4–6 years
CO₂ reduction
12–35 tonnes/year
Electricity use
165 kWh/m²/year
165 kWh/m²
Typical retail electricity intensity; highest of any standard commercial sector
Hotels, restaurants, and leisure centres benefit from year-round energy demand.
The hospitality sector has diverse energy needs spanning heating, cooling, hot water, lighting, and kitchen equipment. Hotels operate 24/7 with significant daytime peaks for housekeeping, catering, and guest services. Leisure centres have energy-intensive pool heating and ventilation systems. Solar PV addresses the electrical component of these loads, with additional potential for solar thermal integration.
System size
30–100 kWp
Annual savings
£8,000–£25,000
Self-consumption
60%
Payback
5–7 years
CO₂ reduction
8–25 tonnes/year
Electricity use
105 kWh/m²/year
73%
Of travellers would choose a sustainable property (Booking.com 2024)
Farm buildings offer large roof areas and strong rural solar yields.
Agricultural buildings, including barns, packhouses, cold stores, and livestock housing, offer substantial roof areas in locations with minimal shading. Rural sites typically benefit from higher solar irradiance due to lower air pollution and fewer obstructions. Energy costs for irrigation, grain drying, refrigeration, milking parlours, and processing equipment can be significantly reduced with on-site generation.
System size
50–200 kWp
Annual savings
£10,000–£45,000
Self-consumption
65%
Payback
5–7 years
CO₂ reduction
12–50 tonnes/year
Electricity use
30 kWh/m²/year
200 kWp
Typical maximum system size for large agricultural barn installations
Schools, colleges, and universities can cut energy costs and lead by example.
Educational institutions face significant energy costs across their estates, with electricity consumed by lighting, ICT equipment, laboratories, catering facilities, and sports centres. Term-time demand aligns well with solar generation, and surplus generation during holidays can be exported for revenue. Beyond financial savings, solar installations provide tangible educational benefits for students studying science, engineering, and environmental topics.
System size
30–100 kWp
Annual savings
£8,000–£25,000
Self-consumption
55%
Payback
6–8 years
CO₂ reduction
8–25 tonnes/year
Electricity use
55 kWh/m²/year
0%
Interest rate on Salix Finance loans for public sector solar installations
9-to-5 demand profiles match solar generation almost perfectly.
Office buildings have electricity demand driven by lighting, HVAC, IT equipment, and lifts, all concentrated during standard business hours. This 9-to-5 profile is one of the best natural matches for solar generation curves in the UK. Air-conditioned offices in particular have peak electricity demand during summer afternoons, precisely when solar output is highest.
System size
30–150 kWp
Annual savings
£8,000–£35,000
Self-consumption
70%
Payback
5–7 years
CO₂ reduction
8–35 tonnes/year
Electricity use
120 kWh/m²/year
20%
Rental premium for offices with high EPC ratings (RICS data)
Hospitals, clinics, and care homes have 24/7 demand; solar reduces daytime grid reliance.
Healthcare facilities operate around the clock with significant daytime peaks for outpatient services, diagnostic equipment, theatre operations, and administrative functions. Medical imaging, laboratory equipment, and building services (HVAC, lifts, lighting) create substantial electrical baseload. Solar PV reduces grid dependence during peak hours and contributes to NHS and public health decarbonisation targets.
System size
50–250 kWp
Annual savings
£12,000–£60,000
Self-consumption
65%
Payback
5–7 years
CO₂ reduction
12–60 tonnes/year
Electricity use
90 kWh/m²/year
2040
NHS net zero target year for Scope 1 and 2 emissions
Showroom lighting, forecourt power, and EV charging, all solar-compatible.
Car dealerships combine showroom, workshop, and forecourt operations with high electricity consumption from display lighting, HVAC, vehicle preparation bays, and increasingly, electric vehicle charging. The shift to EV sales creates both a commercial opportunity and an energy challenge; on-site solar directly addresses rising electricity costs while demonstrating the dealership's commitment to the electric transition.
System size
50–150 kWp
Annual savings
£12,000–£35,000
Self-consumption
70%
Payback
4–6 years
CO₂ reduction
12–35 tonnes/year
Electricity use
110 kWh/m²/year
80%
ZEV Mandate target for zero-emission new car sales by 2030
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