Commercial Solar Panel Installation in Devon
Devon's South West location delivers outstanding solar irradiance combined with above-average electricity rates. From Exeter's growing technology sector to Plym
Devon's South West location delivers outstanding solar irradiance combined with above-average electricity rates. From Exeter's growing technology sector to Plymouth's marine industries and the county's vast agricultural base, Devon businesses are well-placed for solar investment.
1,120 kWh/m²
Annual Solar Irradiance
970 kWh/kWp
Annual Solar Yield
31p/kWh
Avg Commercial Electricity Rate
3-4 years
Typical Payback Period
Commercial Solar Installation in Devon
Devon's diverse economy spans Exeter's rapidly growing technology and professional services sector, Plymouth's marine, defence, and manufacturing industries, and extensive agricultural and tourism operations across the county. The region's commercial property ranges from modern business parks at Exeter Science Park to historic harbourside developments in Plymouth and industrial estates across the South Hams.
Our Devon installation teams cover the entire county, from logistics centres along the M5 corridor to marine engineering facilities in Plymouth, agricultural buildings across Dartmoor's fringe, and tourism properties along the English Riviera. We understand Devon's unique mix of planning environments including two national parks and extensive AONB coverage.
With commercial electricity rates averaging 31p/kWh and annual solar yields of 970 kWh per kWp, Devon offers some of the best commercial solar economics in the UK. A 100kW system generates approximately 97,000 kWh annually, saving around £30,000 per year with payback typically in 3-4 years.
Devon Solar Economics
Devon benefits from solar irradiance of approximately 1,120 kWh/m² annually, producing around 970 kWh per kWp installed. The South Devon coast records some of the highest sunshine hours in England.
Higher-than-average electricity rates in Devon mean the financial savings per kilowatt-hour generated are significant. Tourism businesses benefit from peak generation coinciding with peak summer demand, while agricultural operations reduce costs year-round.
Key Areas We Serve in Devon
- Exeter
- Plymouth
- Torquay
- Newton Abbot
- Barnstaple
- Tiverton
- Exmouth
- Paignton
- Crediton
- Honiton
- Okehampton
- Tavistock
Industries We Serve Across Devon
- Tourism & Hospitality
- Marine & Defence
- Agriculture
- Technology
- Food & Drink
- Manufacturing
- Healthcare
- Education
Planning Considerations in Devon
Devon includes Dartmoor and Exmoor National Parks plus extensive AONB coverage. Commercial rooftop solar is generally permitted development even within these designations. Ground-mounted arrays in national parks face additional scrutiny. Our team navigates all planning requirements across Devon's diverse planning authorities.
Devon Commercial Solar FAQs
How does Devon's solar potential compare to other UK counties?
Devon enjoys approximately 1,120 kWh/m² of annual solar irradiance, placing it among the top solar-producing counties in England. The South Devon coast records some of the highest sunshine hours in the country. Combined with above-average electricity rates of 31p/kWh, Devon delivers some of the fastest commercial solar payback periods in the UK.
Is commercial solar suitable for Devon tourism businesses?
Devon's tourism and hospitality sector is ideally suited to solar. Hotels, holiday parks, and leisure facilities experience peak demand during summer months when solar generation is highest. A 100kW system on a Devon hotel generates approximately 97,000 kWh annually, with summer self-consumption ratios often exceeding 85%.
Can Plymouth marine businesses install commercial solar?
Plymouth's marine and defence businesses can install commercial solar with appropriate coastal specifications. We use marine-grade mounting systems and corrosion-resistant components for installations near the waterfront. Solar helps marine businesses reduce energy costs while meeting increasingly stringent sustainability requirements in defence and marine procurement.
What are the costs for commercial solar in Devon?
Commercial solar in Devon typically costs between £790 and £1,060 per kWp. A 100kW system costs approximately £79,000 to £106,000, with payback in 3-4 years. Devon's excellent solar resource means 25-year savings exceed £550,000 for a 100kW installation at current electricity rates.
Does Dartmoor National Park affect commercial solar?
Dartmoor National Park designation primarily affects ground-mounted solar arrays, which require full planning permission within the park boundary. Commercial rooftop installations on existing buildings are generally permitted development. Businesses on the Dartmoor fringe and in surrounding towns like Tavistock and Okehampton can install rooftop solar under standard permitted development rights.
Nearby counties we serve
Ready to Reduce Your Energy Costs?
Join hundreds of UK businesses already benefiting from commercial solar. Get your free site survey and quote today.
MCS Certified | 25-Year Warranty | Nationwide Coverage
Devon: Key Commercial Areas and Solar Opportunity
Devon's commercial solar market spans a diverse range of business types and geographies. The county's key commercial centres — Exeter, Plymouth fringe, Newton Abbot, Barnstaple and Tiverton — all have businesses facing commercial electricity tariffs of 24-30p/kWh, making solar a compelling investment with payback periods of 4-6 years at current prices. The county's primary commercial solar sectors include tourism and hospitality, agriculture, food manufacturing, NHS (Northern Devon Healthcare), logistics, higher education (University of Exeter).
SSEN is the Distribution Network Operator for Devon. SSEN covers Devon. The county's large rural area and dispersed settlements mean many commercial locations have overhead distribution networks with potential export constraints. Pre-application enquiries to SSEN are strongly recommended for all systems over 50kW outside Exeter city. Devon's tourism sector — the UK's second most visited county — creates strong hospitality solar demand, particularly for hotels and holiday parks with year-round electricity loads.
Case Study: 100kW Hotel, Exeter
A 70-room hotel near Exeter city centre installed 100kW on multiple roof sections. SSEN G99: 10 weeks. Annual generation: 92,000 kWh. Self-consumption (HVAC, hot water, kitchen, laundry): 81%. Annual saving: £20,900. AIA (25%): £22,500. Net post-AIA: £67,500. Payback: 3.2 years.
How much does commercial solar cost in Devon?
A 100kW commercial solar system in Devon typically costs £70,000-£105,000 installed. Annual savings at 28p/kWh with 75% self-consumption are typically £18,000-£24,000. After the 25% corporation tax AIA saving of £17,500-£26,250, the net first-year cost is typically £43,750-£78,750. Payback periods of 4-6 years are typical, with 25-year IRRs of 18-24%.
Which DNO covers Devon for commercial solar connections?
SSEN covers Devon's electricity distribution network. G98 notification is required for systems up to 50kW; G99 application for systems over 50kW. SSEN's pre-application advisory service is free and recommended for all systems over 100kW. Pre-application enquiries typically receive a response within 2 weeks.
Get a Devon Commercial Solar Quote
Free site survey, detailed financial model and MCS-certified installation.
Get a Free SurveyDevon's farm, tourism and food sector businesses should act now to secure the best available tariffs and grid connection slots — rising demand for grid-connected commercial solar in the South West means SSEN application queues are growing. Contact our team today to arrange a free survey and get your DNO application submitted ahead of your competitors.