Commercial Solar Panel Installation Cornwall.
MCS certified solar for Cornwall businesses, farms and commercial premises. Sized to your usage, installed with minimal disruption.
Residential solar and battery installs qualify for 0% VAT until 31 March 2027. Commercial work is charged standard VAT: see details
Solar built around your business.
Sized to Your Business, Not Just Your Roof
Commercial solar is one of the most effective ways for Cornwall businesses to reduce operating costs, and we design every system around how your business actually uses electricity during the day, not just the size of your roof. From offices and retail units to farm buildings and industrial premises, we survey the site, model your usage and design a system sized to match it.
Full Process, Handled In-House
As an MCS certified installer, we handle the full process in-house: site survey, structural assessment, design, installation and certification. For larger commercial roofs and outbuildings we can design multi-array systems, and where relevant we'll advise on three-phase supply requirements and grid connection agreements with your District Network Operator.
Minimal Disruption, Maximum Value
We understand that disruption costs businesses money, so installs are scheduled and managed to minimise downtime, with clear timelines agreed in advance. Many of our commercial clients also add battery storage or EV charging for their fleet as part of the same project, which we can quote and install together.
Fixed, Transparent Pricing
Every commercial quote is fixed and transparent, with no hidden costs once work begins. If you're weighing up solar for your Cornwall business, get in touch for a free site visit and quote.

Sized to your usage, not your roof.
Site Survey & Design
A full site assessment matched to your business energy usage, not just roof space.
Farms & Commercial Roofs
Multi-array systems for larger commercial, agricultural and industrial buildings.
Minimal Disruption
Installs scheduled around your business, with clear timelines agreed up front.
MCS Certified Installs
Fully certified installations, with SEG registration and compliance handled for you.
Common Questions
There's no general cash grant for commercial solar installations in England. The main financial benefit comes through tax relief on the investment, which we can talk you through.
Most businesses can deduct the full cost of a solar installation from taxable profits in the first year, through the Annual Investment Allowance, up to £1 million. For larger installs above that threshold, a 50% first-year allowance applies to the remainder. We'd always recommend confirming the specifics with your accountant.
Yes. Farm rooftop solar can qualify for the Improving Farm Productivity Grant, offering 25% funding towards the cost. We can talk you through eligibility as part of your quote.
No. Commercial and business installations are charged VAT at the standard rate, and the 0% relief only applies to residential installs.
I cannot recommend Holloway Electrical highly enough. From the planning of our solar and battery installations through to the final commissioning Jamie's took care of everything. Organised other trades to assist, explained everything that was going on and completed the job on time as promised to an exceptional standard, I could not be happier.
We experienced a very friendly and helpful service from Jamie with our new kitchen electrics. We would highly recommend his services.
We are so pleased with the work that Jamie completed for us today, supplying power to our apartment garage and installing sockets and EV charger. The quality of the work is outstanding. I highly recommend Holloway Electrical Ltd, definitely our electrical professional for all future requirements!
Hi Jamie, Kieran did a great job and we are both very pleased with it. Thank you very much. I would like to discuss with you the electrical box in the kitchen which will need to be replaced. PEH
A lovely local company to deal with. Efficient and left everything clean and tidy. Highly recommend.
Great communication, excellent service, great price, 100% recommend.
We had several quotes from Electricians to install our EV charger which varied dramatically. Jamie’s quote was by far the most reasonable and he was the only one who bothered to come to our home and look at the charger etc. before taking on the job. He arrived on the agreed date of installation and was personable, efficient and tidy. I would have no hesitation in recommending Jamie and would be happy to call on his services again in the future.
Jamie provided us with a personable, friendly and efficient service when installing our new EV charger. I would have no hesitation in recommending him.
I cannot recommend Holloway Electrical highly enough. From the planning of our solar and battery installations through to the final commissioning Jamie's took care of everything. Organised other trades to assist, explained everything that was going on and completed the job on time as promised to an exceptional standard, I could not be happier.
We experienced a very friendly and helpful service from Jamie with our new kitchen electrics. We would highly recommend his services.
We are so pleased with the work that Jamie completed for us today, supplying power to our apartment garage and installing sockets and EV charger. The quality of the work is outstanding. I highly recommend Holloway Electrical Ltd, definitely our electrical professional for all future requirements!
Hi Jamie, Kieran did a great job and we are both very pleased with it. Thank you very much. I would like to discuss with you the electrical box in the kitchen which will need to be replaced. PEH
A lovely local company to deal with. Efficient and left everything clean and tidy. Highly recommend.
Great communication, excellent service, great price, 100% recommend.
We had several quotes from Electricians to install our EV charger which varied dramatically. Jamie’s quote was by far the most reasonable and he was the only one who bothered to come to our home and look at the charger etc. before taking on the job. He arrived on the agreed date of installation and was personable, efficient and tidy. I would have no hesitation in recommending Jamie and would be happy to call on his services again in the future.
Jamie provided us with a personable, friendly and efficient service when installing our new EV charger. I would have no hesitation in recommending him.
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Serving homes and businesses across Cornwall.
Based in St Austell, we install throughout the following towns and the surrounding villages.