Commercial Solar Panels in Bath & Somerset
MCS-certified commercial solar installers covering Bath, the BA postcode area and the wider Somerset region. We design, supply and install rooftop PV systems from 30kW to 500kW+ for factories, warehouses, business parks and offices, with a typical payback of 3-5 years and grid connection handled through National Grid Electricity Distribution.
Why Bath businesses are switching to commercial solar
Bath is best known as a UNESCO World Heritage city, but beyond the Georgian crescents sits a substantial commercial and light-industrial base spread across the BA1, BA2 and BA3 postcodes and out into the wider Somerset and Bath & North East Somerset (B&NES) economy. Engineering firms, food and drink producers, distribution operators, healthcare providers and a fast-growing technology and creative cluster all share one problem: UK industrial electricity now costs roughly 28-32p per kWh, and that bill lands every single month regardless of how the wider economy is performing.
A commercial rooftop solar array turns a chunk of that recurring cost into a fixed, owned asset. For a typical Bath manufacturer or warehouse drawing power through the working day, on-site solar generation can offset 40-70% of daytime consumption, and any surplus is exported for income under the Smart Export Guarantee (SEG). With commercial systems installed for around £700-£1,000 per kWp (the rate falls as system size rises), most well-matched sites in the Bath area reach payback inside 3-5 years and then deliver two decades or more of near-free electricity.
We work as specialist commercial solar installers rather than residential fitters who occasionally take on a larger roof. That distinction matters in Bath, where many commercial premises sit within or adjacent to conservation areas and the World Heritage buffer zone, and where flat-roof warehouse units on the city's industrial estates need proper structural and ballast engineering rather than a domestic-style retrofit.
Commercial solar cost & payback in Bath
The figures below are indicative installed costs for commercial rooftop PV in the Bath and Somerset area. Per-kWp pricing falls as system size increases because fixed costs (scaffolding, design, grid application, mobilisation) are spread across more panels. Savings assume an industrial electricity price of around 30p/kWh and a high daytime self-consumption profile typical of a manufacturing or logistics site.
| System size | Typical roof area | Indicative installed cost | Est. annual saving | Typical payback |
|---|---|---|---|---|
| 30 kWp | ~180 m² | £27,000-£30,000 | £6,500-£8,000 | 3.5-4.5 yrs |
| 50 kWp | ~300 m² | £42,000-£47,000 | £11,000-£13,500 | 3.5-4 yrs |
| 100 kWp | ~600 m² | £78,000-£90,000 | £22,000-£27,000 | 3-4 yrs |
| 250 kWp | ~1,500 m² | £185,000-£215,000 | £55,000-£68,000 | 3-3.5 yrs |
| 500 kWp | ~3,000 m² | £350,000-£420,000 | £110,000-£135,000 | 3-3.5 yrs |
These ranges are deliberately conservative. The single biggest variable is how much of your generation you use on site versus export: a Bath food producer running refrigeration and processing through the day will self-consume far more than a Monday-Friday office, and self-consumed units (offsetting 30p) are worth roughly four times an exported unit (earning 5-8p). For a detailed methodology and a full breakdown of what drives the numbers, see our guides to factory solar panel costs in 2025 and overall commercial solar installation costs in the UK.
Tax relief and incentives for Bath & Somerset firms
The commercial case is strengthened considerably by capital allowances. Solar PV qualifies for the Annual Investment Allowance (AIA), giving 100% first-year tax relief on qualifying plant and machinery up to £1m of spend; expenditure above that threshold can attract the 50% First Year Allowance (FYA). For a profitable Somerset company paying corporation tax, that relief reduces the effective net cost of a system meaningfully in the year of installation — bring the figures to your accountant alongside our quotation.
On top of capital allowances, the Smart Export Guarantee (SEG) requires licensed suppliers to pay for every exported unit, turning surplus generation into ongoing income. Systems above 50kW require a G99 grid connection application to National Grid Electricity Distribution before energisation; smaller systems can often connect under the simpler G98 notification. We handle the full DNO application and witness-testing process as part of every installation so there are no surprises at commissioning.
Local knowledge: Bath's commercial & industrial sites
Bath's commercial roof stock is concentrated away from the protected historic core. Genuine local detail matters when scoping a system, so here is what we account for across the area:
- Distribution Network Operator: the entire BA area is served by National Grid Electricity Distribution (NGED), formerly Western Power Distribution. All G98/G99 applications for Bath commercial sites go through NGED's South West licence area.
- Locksbrook Road & Brassmill Lane (BA1): the city's principal light-industrial corridor along the River Avon, home to manufacturing, trade counters and studio units with the flat and shallow-pitch roofs that suit PV well.
- Westmoreland & Lower Bristol Road: a mixed commercial belt of warehousing, retail-warehouse and office stock running west out of the city centre.
- Bath Business Park, Peasedown St John (BA2): a purpose-built commercial park to the south of the city offering large modern unit roofs ideal for 100kW+ arrays.
- Riverside Business Park, Saltford: on the Bath-Bristol corridor, serving distribution and trade businesses across B&NES.
- Conservation & World Heritage context: Bath & North East Somerset Council enforces strict conservation-area and World Heritage buffer-zone controls; for premises in sensitive locations we advise on panel placement, low-glare modules and where permitted-development rights apply versus where a planning application is needed.
B&NES Council declared a climate emergency and has set ambitious carbon-neutral targets for the district, and many local procurement and tendering frameworks now reward demonstrable on-site renewable generation. A solar array is one of the most visible, measurable ways a Bath business can evidence its decarbonisation commitment.
Our commercial installation process
Every Bath project follows the same disciplined sequence so you know exactly what to expect:
- Desktop assessment & energy review. We analyse your half-hourly consumption data and model generation against your actual demand profile — not a generic estimate.
- Free on-site survey. Structural inspection of the roof, electrical intake assessment and shading analysis across the BA site.
- Design & financial proposal. A panel layout, yield forecast, cost, payback and AIA tax-relief summary tailored to your business.
- DNO application. We submit the G98 or G99 application to National Grid Electricity Distribution and manage the approval.
- Installation. MCS-certified install by directly employed, accredited teams, with full RAMS and minimal disruption to operations.
- Commissioning & monitoring. Witness testing, handover, SEG registration and remote performance monitoring so you can see savings from day one.
If your interest is in a single specific premises within the city, our dedicated solar panel installation in Bath page covers the local detail for individual sites in more depth.
Areas we cover across Bath & Somerset
We install commercial solar across the full BA postcode area and the wider Somerset and B&NES region, including:
| Town / area | Postcode | Commercial focus |
|---|---|---|
| Bath city & Locksbrook | BA1 | Light industry, studios, trade units |
| Bath south & Peasedown St John | BA2 | Business parks, modern warehousing |
| Radstock & Midsomer Norton | BA3 | Manufacturing, distribution |
| Frome | BA11 | Engineering, food & drink production |
| Saltford & Keynsham | BS31 | Riverside trade & logistics parks |
| Trowbridge & Westbury | BA13/14 | Industrial estates, warehousing |
Whether your premises is a single-unit workshop off Lower Bristol Road or a 3,000 m² distribution shed at Bath Business Park, we will design a system matched to your roof, your demand and your decarbonisation goals.
Frequently asked questions
How much does commercial solar cost in Bath?
Commercial solar in Bath is installed for roughly £700-£1,000 per kWp, with the per-kWp rate falling as system size rises. A 100kWp system typically costs £78,000-£90,000 fully installed and saves £22,000-£27,000 a year on a high self-consumption site, giving a payback of around 3-4 years. After capital allowances such as the AIA, the effective net cost in the first year is lower again.
Who is the DNO for Bath and Somerset?
The Distribution Network Operator for the entire BA postcode area and the wider Somerset region is National Grid Electricity Distribution (NGED), formerly Western Power Distribution. All grid-connection applications — G98 for systems up to about 50kW, or a full G99 application for larger commercial arrays — are submitted to NGED, and we handle that process for you.
Will Bath's conservation-area and World Heritage rules stop me installing solar?
Not usually. Most of Bath's commercial and industrial premises sit outside the protected historic core, on estates such as Locksbrook Road, Westmoreland and Bath Business Park where solar is straightforward. For premises within a conservation area or the World Heritage buffer zone, Bath & North East Somerset Council applies tighter controls; we advise on panel placement, low-glare modules and whether permitted development applies or a planning application is needed.
What is the typical payback period for a Bath business?
Most well-matched commercial systems in the Bath area pay for themselves within 3-5 years, and frequently at the lower end of that range for sites that consume most of their generation on site through the working day. With UK industrial electricity at around 28-32p/kWh, every unit of solar you self-consume directly offsets that cost, and the system then delivers 20-25+ years of near-free power.
Do I get paid for the electricity I export to the grid?
Yes. Under the Smart Export Guarantee (SEG), licensed energy suppliers pay you for every surplus unit your system exports to the grid, typically 5-8p per kWh depending on the tariff. We register your system for SEG as part of commissioning. Self-consumed units are worth far more, so we design each Bath system to maximise on-site use first and export the rest.
Can you handle large 250kW+ systems on Somerset industrial estates?
Yes. We specialise in larger commercial and industrial arrays from 30kW up to 500kW and beyond, including the bigger flat-roof and shallow-pitch units found at Bath Business Park, Riverside Business Park and the Radstock and Frome industrial estates. Larger systems require a G99 application to NGED and proper structural and ballast engineering, both of which we manage in full.
Get your free factory solar assessment
Send us your half-hourly meter data (any UK supplier provides it free) and we'll model the financial case for solar on your premises within 7 working days. No obligation, no high-pressure sales calls.