Commercial Solar Installation for Bristol & Somerset Businesses
Slash your business energy bills by up to 70% with a commercial solar PV system designed and installed by D&R Energy. Benefit from 0% VAT, generous tax allowances, and payback periods as short as three years.
MCS Certified
Microgeneration Certification Scheme
NAPIT Registered
National Association of Professional Inspectors
RECC Member
Renewable Energy Consumer Code
Why Businesses Across the South West Are Switching to Solar
Energy costs represent one of the largest overheads for businesses of every size. Whether you operate a warehouse in Bristol, a manufacturing facility in Weston-super-Mare, a farm in rural Somerset, or an office block in Portishead, commercial solar panels offer a proven route to dramatically lower electricity bills and long-term energy security. With wholesale electricity prices remaining volatile and showing no signs of returning to pre-2021 levels, generating your own power on-site is no longer a nice-to-have. It is a strategic business decision that directly improves your bottom line.
D&R Energy designs and installs bespoke commercial solar PV systems for businesses across Bristol, North Somerset, Bath, and the wider South West. Our MCS-certified team handles every stage of the process, from the initial energy audit and feasibility study through system design, grid connection applications, installation, and commissioning. We work with businesses of all sizes, from small workshops requiring a 10kW rooftop array to large industrial facilities needing 100kW+ systems spanning multiple roof areas.
Tax Incentives That Make Commercial Solar a No-Brainer
The UK government offers some of the most generous tax incentives for commercial solar installations in recent memory. Taken together, these allowances can reduce the effective cost of your solar system by 40-60%, transforming an already strong investment into an exceptional one.
Annual Investment Allowance (AIA)
Businesses can claim the AIA on commercial solar installations up to £1,000,000 per year. This allows you to deduct the full cost of your solar PV system from your taxable profits in the year of purchase. For a company paying corporation tax at 25%, a £50,000 solar installation effectively costs just £37,500 after tax relief.
50% First-Year Allowance
In addition to the AIA, the 50% First-Year Allowance provides an alternative route to claim accelerated tax relief on qualifying energy-saving equipment including solar panels. This is particularly valuable for larger businesses that may have already used their AIA on other capital expenditure during the year.
0% VAT on Solar Panels
Since April 2022, solar panels, battery storage, and energy-saving materials are zero-rated for VAT in the UK. This 0% VAT rate applies until at least March 2027, saving businesses thousands of pounds on their installation costs compared to the standard 20% rate.
Smart Export Guarantee (SEG)
Any surplus electricity your commercial system generates can be exported to the grid and paid for under the Smart Export Guarantee. While commercial systems are typically designed to maximise self-consumption, weekend and bank holiday exports can generate additional revenue for your business.
Industries We Serve
D&R Energy has installed commercial solar systems for a wide range of business types across Bristol and Somerset. Our experience spans offices, retail units, warehouses, agricultural buildings, schools, care homes, and manufacturing facilities. Each business type presents unique opportunities for solar, and our team designs every system to match the specific energy consumption profile of the property.
Agricultural businesses in particular benefit from commercial solar, as large barn roofs provide extensive south-facing surface area and daytime energy demands from milking parlours, refrigeration, and irrigation align perfectly with solar generation patterns. Warehouses and distribution centres benefit from their expansive flat roofs, which can accommodate large arrays without any visual impact. Office buildings and retail units reduce their energy costs while demonstrating environmental responsibility to customers and employees.
Commercial Solar Costs & Savings (2026)
Commercial solar systems achieve payback of 3–4 years when combined with the Annual Investment Allowance and 0% VAT. The table below shows typical costs and savings for South West businesses at current commercial electricity rates.
| System | Suitable For | Installed Cost | Annual Savings | Payback |
|---|---|---|---|---|
| 10kW | Small office | £10,000–£14,000 | £2,500–£3,500 | 3–5 years |
| 30kW | Medium warehouse | £25,000–£35,000 | £7,000–£10,000 | 3–4 years |
| 50kW | Large warehouse | £40,000–£55,000 | £12,000–£17,000 | 3–4 years |
| 100kW | Industrial unit | £70,000–£100,000 | £22,000–£30,000 | 3–4 years |
All costs include 0% VAT (until March 2027). Savings calculated at commercial electricity rates. AIA tax relief (25% corporation tax) reduces effective cost by a further 25%. Systems above 3.68kW per phase require G99 DNO application — D&R Energy manages all applications. Request a commercial energy audit →
The Commercial Solar Payback Period
Commercial solar installations typically achieve a payback period of 3-5 years, significantly faster than domestic systems. This is because businesses consume the majority of their electricity during daytime hours when solar generation is at its peak, meaning self-consumption rates of 60-80% are common without any battery storage. After the payback period, your business enjoys essentially free daytime electricity for the remaining 25+ year lifespan of the system.
The South West of England is the best region in the UK for solar energy generation. Commercial systems in Bristol and Somerset consistently produce 950-1,100 kWh per kWp annually, up to 15% more than the national average. This superior solar yield means faster payback and higher lifetime returns on your investment. A well-designed 50kW commercial system in Bristol can generate over 50,000 kWh of electricity per year, worth £10,000-£15,000 at current commercial electricity rates.
When you factor in the Annual Investment Allowance, 0% VAT, and the Smart Export Guarantee revenue, many commercial installations achieve a return on investment of 20-30% per year after the payback period. No other low-risk business investment comes close to matching these returns.
Our Commercial Solar Process
Every commercial installation begins with a comprehensive energy audit. We analyse your electricity bills, consumption patterns, and operational hours to understand exactly how much energy you use and when you use it. We then survey your building to assess roof condition, orientation, shading, and structural capacity. This data allows us to design a system that maximises self-consumption and delivers the fastest possible payback.
Our design team uses industry-leading software to model the expected energy generation of your system throughout the year, accounting for local weather data, roof pitch, and shading from nearby structures. We handle all grid connection applications with the Distribution Network Operator (DNO) and manage every aspect of the installation from scaffolding to commissioning. After installation, we provide full documentation for your accountant to claim the Annual Investment Allowance and register your system for the Smart Export Guarantee.
Commercial Solar Across Our Service Area
D&R Energy installs commercial solar PV systems for businesses across Bristol, North Somerset, Somerset, and the wider South West. Explore your area below.
