Business Solar In Wales
Commercial solar power, battery storage, and EV charging for Welsh businesses, farms, schools, and industrial sites. Reduce overheads, fix your energy costs, and meet your sustainability targets with a trusted local installer.
Solar power that pays back the business case
For Welsh businesses, electricity is one of the biggest controllable costs. Wholesale prices have moved in unpredictable ways over the past few years, and many companies that survived earlier energy shocks have come away determined to take more control over their supply. Commercial solar offers exactly that: a long-term hedge against grid prices, a tangible reduction in operating costs, and a visible contribution to your environmental targets.
Welsh Solar specifies and installs solar PV, battery storage, and electric vehicle charging for businesses across Wales. Our commercial team works with single-site owner-operators, multi-site landlords, agricultural enterprises, public sector bodies, and industrial groups. Every project starts with a free site visit and a full energy review so the proposal we put in front of you is built around your actual half-hourly consumption rather than a generic template.
The commercial benefits, in plain numbers
Solar makes business sense in 2026 in a way that it did not even five years ago. Payback periods have shortened, equipment has become more efficient, and the regulatory framework has stabilised.
Lower running costs
A well-designed commercial array can cover 20% to 60% of a typical business's daytime electricity demand, with manufacturers and warehouses often achieving even higher self-consumption percentages thanks to predictable weekday loads.
Capital allowances
Solar installations on UK business premises currently qualify for full expensing or first-year allowances under HMRC rules, allowing many companies to write off the entire cost against taxable profits in the year of installation.
Asset value
A solar system improves a building's EPC rating, which matters under MEES regulations for commercial landlords and is increasingly factored into property valuations and lease negotiations.
ESG credibility
For larger businesses subject to mandatory carbon reporting, on-site generation provides Scope 2 reductions that are auditable, measurable, and visible to staff, customers, and investors.
Energy resilience
Paired with battery storage, commercial solar provides protection against grid outages for critical loads such as cold stores, IT rooms, and security systems.
Smart Export Guarantee
Surplus generation exported to the grid earns income under SEG, with rates typically more attractive for commercial generators with predictable export profiles.
Sectors we work with across Wales
Our commercial team has experience across virtually every sector that occupies non-domestic premises in Wales. Each comes with its own technical and commercial considerations, and we tailor the design accordingly.
- Warehouses and large distribution buildings
- Factories and manufacturing facilities
- Farms and agricultural enterprises
- Office buildings, including SME and corporate
- Schools, colleges, and academies
- Hotels, B&Bs, and hospitality venues
- Care homes and residential care providers
- Hospitals and primary healthcare
- Data centres and IT facilities
- Logistics and distribution centres
- Retail premises and supermarkets
- Solar carports for staff and customer parking
What a commercial project looks like with us
A typical commercial solar project takes between three and six months from initial enquiry to commissioning, depending on size and complexity. Larger installations or those requiring DNO upgrades take longer, while a modest 50 kW rooftop system on a single building can sometimes be completed inside ten weeks.
We start with a no-cost feasibility visit and energy review. From there, we produce a written proposal that includes a financial model showing payback, internal rate of return, lifetime savings, and CO₂ avoided. Once you approve the proposal, our project team handles design, structural assessment, DNO application, installation, and commissioning. We can also arrange ongoing operations and maintenance under a service-level agreement if that suits your facilities team.
Product pages
Commercial Solar Panels
Rooftop and ground-mount solar PV systems from 30 kW to 1 MW+ for Welsh businesses.
Battery Storage for Business
Commercial battery systems to increase self-consumption and provide backup power.
EV Charging for Business
Fleet, staff, and customer EV charging powered by solar, with smart load management.
Case Studies
Real installations from Welsh farms, factories, offices, and public sector clients.
Frequently asked questions about commercial solar
How much does a commercial solar installation cost?
Commercial pricing typically ranges from around £700 to £950 per kWp installed, depending on size, roof complexity, and any required grid upgrades. A 50 kW system might come in at £40,000 to £45,000 fitted, while a 250 kW system benefits from economies of scale and works out closer to £180,000. We always provide a fixed written quotation after a free site survey so there are no surprises.
Will my roof be strong enough for solar panels?
Most modern commercial roofs are well within tolerance for solar PV, which adds around 15 to 20 kilograms per square metre. We carry out a structural assessment as part of every survey, and if the roof needs reinforcement we will tell you exactly what is required before you commit to anything.
Can we install solar without disrupting operations?
Yes. We schedule works to minimise disruption, which often means weekend or out-of-hours connection windows for the final tie-in. Most of the installation can be completed while you carry on trading normally, and we coordinate carefully with your facilities team.
Are there grants or incentives for commercial solar?
There are no direct grants for most commercial solar in the way there are for domestic heat pumps, but capital allowances under full expensing currently let companies write off 100% of qualifying plant and machinery expenditure in the year of installation. The Smart Export Guarantee pays for surplus exported electricity. Welsh Government and local authority schemes occasionally support specific sectors such as farming or community buildings.
How long do commercial solar systems last?
Quality panels carry product warranties of 25 years and performance warranties guaranteeing at least 85% output after 25 years. Inverters are typically warranted for 10 to 12 years and may be replaced once during the system's life. With routine cleaning and electrical inspections, commercial systems regularly produce useful output for 30 years or more.