Commercial Solar Panel Installation Chester & North Wales | MARA Electrical
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Multi-Megawatt Commercial Solar Specialists

Commercial Solar Panel Installation Chester & North Wales

MCS certified commercial solar panel installers with 15+ years and 980+ projects delivered — from single retail units to multi-megawatt distribution centres. Trusted by Sainsbury's, Tesco, Aldi, Primark, NEXT, DP World and the Ministry of Defence.

MCS Certified NICEIC Approved G99 Grid Connection Retail · Industrial · Public
850kWp commercial solar panel installation at ABP Southampton Port by MARA Electrical — commercial solar installers North Wales and Chester

Solar PV at Scale, Done Properly

Fifteen years of large-format commercial and industrial solar across the UK, engineered by NICEIC approved electricians and MCS certified installers.

21MWp+
Commercial solar installed
980+
Commercial & industrial projects
15+
Years MCS certified since 2010
2.5MWp
Largest single site

Commercial Solar Built for Return on Investment

As experienced commercial solar panel installers in Chester, Deeside, Wrexham and across North Wales, we design every commercial solar PV system around your energy use, your roof and your payback — not a one-size template.

4–7 Year Payback
Businesses use most of their generation on-site during daylight, so commercial solar pays back faster than domestic — then delivers 20+ years of near-free power.
Full G99 Grid Connection
We manage the entire DNO process — G99 application, witness testing and Approval to Connect — so your project is compliant and grid-ready from day one.
Structural Roof Surveys
Trapezoidal, standing-seam, built-up felt or in-roof — we survey load capacity and specify the right mounting system for your building.
SEG & Business Rates
We register your Smart Export Guarantee payments and advise on the capital allowances and reduced carbon reporting that make commercial solar a straightforward financial case.
MCS & NICEIC Certified
Every install is completed by qualified electricians to BS 7671 — the accreditation that lets your system qualify for SEG and keeps your insurance and warranties valid.
Nationwide Delivery, Local Base
Based near Chester serving Deeside, Wrexham and North Wales, with multi-site rollout experience from Southampton to Manchester to Scotland.
Commercial Solar Portfolio — Sorted by Sector

Commercial Solar Panel Installations
Across the UK, North Wales & Chester

From government estates to multi-megawatt distribution centres — a selection of commercial solar panel installations delivered by our Chester and North Wales team for some of the UK's biggest names, all completed to MCS standard.

Your Commercial Solar Project, Step by Step

A clear, managed process from first survey to grid connection — with your paperwork handled throughout.

Feasibility Survey
Free site visit, roof assessment and energy-use analysis, with a full financial and generation projection.
Design & G99
System design, structural sign-off and G99 application to your DNO — all managed by us.
Installation
MCS certified install by NICEIC electricians, with minimal disruption to your operations.
Commission & SEG
Witness testing, Approval to Connect, monitoring setup and Smart Export Guarantee registration.
829kWp commercial solar panel installation on Bidvest coldstore by MARA Electrical — North Wales and Chester

Solar for Every Kind of Commercial Building

Whatever your building type, we have installed commercial solar on one like it. From a single retail unit in Deeside or Wrexham to a national multi-site rollout, our engineering scales to fit — all backed by 15+ years as MCS certified commercial solar panel installers.

  • Retail & supermarkets — Sainsbury's, Tesco, Aldi, B&Q, Primark multi-store rollouts.
  • Distribution & logistics — NEXT, DP World, warehouse and coldstore roofs up to 2.5MWp.
  • Manufacturing & industrial — glass plants, saw mills and industrial parks across the North.
  • Public sector — Ministry of Defence estate and Snowdonia National Park Authority HQ.

Questions Businesses Ask Us

How much does commercial solar panel installation cost?

Commercial solar costs vary with roof size and output, but most systems work out between £600 and £900 per kWp installed, falling as scale increases. A 250kWp system typically returns its cost in 4 to 7 years through energy savings and Smart Export Guarantee payments, then generates free electricity for 20+ years. We provide a free commercial feasibility survey with a full financial projection.

Do commercial solar panels need a G99 grid connection?

Yes. Systems above 3.68kW per phase require a G99 application to your local Distribution Network Operator. MARA Electrical handle the full G99 process, including witness testing and Approval to Connect, as part of every commercial installation across Chester and North Wales.

Can you install solar on an industrial or warehouse roof?

Yes. We specialise in large-scale rooftop solar for warehouses, distribution centres, factories and retail units, and have delivered multi-megawatt systems for Sainsbury's, Tesco, Aldi, Primark, NEXT and DP World on both standing-seam and trapezoidal metal roofs, with structural surveys included.

What is the payback period for commercial solar?

Most commercial installations in North Wales and the North West pay back in 4 to 7 years — faster than domestic because businesses use more of their generation on-site during daylight. With 20-25 year panel warranties, that leaves well over a decade of free electricity and reduced carbon reporting.

Free Commercial Feasibility Survey

Cut Your Business Energy Costs with Commercial Solar

Book a free, no-obligation feasibility survey and get a full financial projection for your roof. Commercial solar panel installers serving Chester, Deeside, Wrexham, Flintshire and North Wales — MCS certified, G99 managed, delivered by NICEIC electricians with 15+ years of commercial solar experience.

or email accounts@mara.uk.com for a commercial solar consultation