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Commercial solar operations & maintenance

Independent O&M for commercial solar PV and battery storage systems. We maintain, monitor, repair, and replace — from inverter swaps to full system takeover. Annual inspections, real-time fault monitoring, emergency response, and no manufacturer bias.
  • Independent — no installer bias
  • All major commercial brands supported
  • Independent, engineer-led · UK-wide
What we cover

Full-lifecycle support for commercial solar assets.

Book a proposal callBook a one-off audit
Operations & maintenance contracts
Emergency commercial repair
System takeover
Independent performance audit

⭐⭐⭐⭐⭐ 5-Star Review – Solar Tech Support Installing solar panels is only the first step! To get the best possible performance and maximise your investment, you need to make sure your system is configured correctly and all settings are properly optimised. **Solar Tech Support did exactly that for me, and I couldn't be happier with their professional service!** Their knowledge, expertise, and attention to detail helped me optimise my solar system to get the most out of it. If you already have solar panels and battery storage, I highly recommend contacting Solar Tech Support for professional advice, system optimisation, and technical support. Don't just install solar panels – make sure you're getting the maximum benefit from your investment! ⭐⭐⭐⭐⭐ Highly recommended! Thank you, Solar Tech Support, for your excellent service!

Karolis Bagdonas · Oct 2026 Trustpilot

I contacted STS when I was having problems with my GivEnergy AC3 inverter and they were extremely helpful. They took the time to properly investigate the system, talked me through a number of things we could try remotely, and ultimately inspected the system to establish what had gone wrong. They identified that the inverter’s battery board had failed beyond repair, while confirming that the two batteries themselves were still healthy. They also provided a clear report explaining their findings, which was particularly helpful given the current situation with GivEnergy. What impressed me most was their knowledge and willingness to help. They didn’t just give me a quick diagnosis — they took the time to understand the problem and explain the options available to me. I’m very pleased with the service I received from STS and would have no hesitation in recommending them to anyone needing help with a GivEnergy solar and battery system.

Mark Roberts · Sep 2026 Google

Any long suffering Givenergy customers are strongly recommended to use solar tech support. They fixed my battery issue in couple of hours.

Sarma Amirapu · May 2026 Trustpilot

A really big thank you to Ron and his team, he has vast amounts of knowledge and got my system back up and running, also good to get on with. I was absolutely lost as to know what to do, no help from installer and somehow came across Ron and am I glad I did. I would definitely definitely recommend him to anyone who has faults with there solar system, any make I would say. Thanks again Ron a pleasure meeting you.

D R · Jun 2026 Google

When my GivEnergy battery started playing up it became basically useless and several companies I called said they couldn’t help. Solar Tech Support really knew their stuff, communicated very well and resolved the problem quickly. Without them I’d have had to buy a replacement battery.

A D · Jun 2026 Google

Excellent knowledge and service. Ron responded to my initial query really quickly (same day), and confirmed that he could add extra panels and battery to my existing GivEnergy setup - something I’d been told by other installers wouldn’t be possible. Two weeks later (!), scaffolding was up and Ron and his team were on site to fit the extra 5 panels and two more GivEnergy batteries. I now have a truly optimised system, which has made the most of the south facing roof space I have, without having to start again with new kit. I’m now generating enough on the solar to fill my batteries, and avoid using the grid. I’ve also exported far more than before. Brilliant experience, well recommended.

Mark Emery · Jul 2026 Google

Last updated

Why independent commercial solar maintenance matters

Most commercial solar maintenance providers in the UK are also installers. That creates a structural conflict of interest — the same company that benefits from selling you new hardware is the one advising you on whether your existing equipment needs replacing.

STS is not tied to any manufacturer, installer, or distribution network. We carry out inverter replacements, component swaps, and hardware repairs — but we have no incentive to recommend work that is not necessary. When we say a component needs replacing, it is because it does — not because we profit from a preferred supplier relationship.

That independence is why our inspection reports carry weight with landlords, facilities managers, and procurement teams. If you need an objective assessment of a commercial solar asset — whether for acquisition due diligence, insurance compliance, or performance benchmarking — our reports are written without a commercial agenda.

We work with all major inverter and battery brands used in UK commercial installations. Our engineers are experienced with three-phase systems, string and micro-inverter configurations, large-scale battery arrays, and the monitoring platforms that connect them. Read more about how we work.

Who this is for

Facilities managers

You are responsible for the solar asset on a commercial building and need a reliable, independent maintenance partner. You want clear SLAs, scheduled inspections, automated fault alerts, and a single point of contact when something goes wrong.

Property owners & landlords

You own or have acquired a building with a commercial solar installation. You need to know what condition it is in, whether it is performing to specification, and who is going to maintain it going forward. You may need an independent audit for insurance or tenancy compliance.

UK businesses with solar

Your business invested in solar to reduce energy costs. The installer who fitted it may no longer be trading, or the commercial solar maintenance they promised has not materialised. You want an independent provider who will keep the system running and tell you the truth about its condition.

How we work

No account setup, no minimum term for one-off audits. O&M contracts are agreed in writing before any work begins.

1
Initial conversation

Tell us about your system — size, brand, age, current maintenance arrangement (if any), and what you need. We will confirm whether an O&M contract, a one-off audit, or an emergency callout is the right starting point.

2
Proposal and scope

We provide a written proposal covering exactly what is included, the annual cost, SLA terms, and any additional services available. Nothing starts until both sides have signed off.

3
Baseline audit

For new O&M contracts and system takeovers, we begin with a baseline inspection — a full assessment of current system condition, monitoring status, and any faults or underperformance. This establishes the starting point for ongoing maintenance.

4
Ongoing maintenance and monitoring

Scheduled annual inspections, real-time monitoring (where the equipment supports it), written reporting after every visit, and priority access to our engineering team for faults and emergencies. If the system needs connectivity setup to enable remote monitoring, we can arrange that for an additional fee.

Brands we support

We work with all major inverter and battery brands used in UK commercial solar installations. If the system was installed in the UK, we can maintain it.

FAQ

Commercial O&M questions

A standard STS commercial O&M contract includes an annual on-site inspection covering all inverters, panels, cabling, isolators, and battery units; real-time fault monitoring with automated alerts (where the equipment supports remote connectivity); a written performance and condition report after each inspection; and priority access to our engineering team for fault response. Additional services such as thermal imaging, panel cleaning, and compliance documentation are available as add-ons. Full details on the O&M contracts page.
Annual O&M contracts start from £10/kWp/annum for a standard commercial rooftop system. The exact cost depends on system size, number of inverters, accessibility, and whether battery storage is included. All pricing is confirmed in writing before any contract begins. One-off audits and emergency callouts are priced separately — get in touch for a proposal.
Yes. We regularly take over O&M for commercial systems where the original installer has ceased trading, the current provider is underperforming, or the building has changed ownership. We conduct a baseline audit to assess current system condition, get monitoring online if it is not already, and transition the system onto an STS O&M contract. There is no penalty or lock-in period on our contracts. See the system takeover page for more detail.
Yes — we support all major commercial inverter and battery brands used in UK installations, including GivEnergy, Sunsynk, SolarEdge, Growatt, Solis, Fox ESS, Huawei, SMA, Fronius, and Enphase. We work with string inverter systems, micro-inverter arrays, hybrid systems with battery storage, and three-phase installations of all sizes. Full brand coverage is listed on the brands page.
O&M contract holders receive priority emergency response — typically same-day remote triage and next-business-day on-site attendance for faults that cannot be resolved remotely. Non-contract emergency callouts are available but subject to engineer availability. Response times and SLA terms are confirmed in your contract. See the emergency repair page for more detail.
STS is an independent solar support and maintenance company. We carry out inverter replacements, component swaps, and hardware repairs — but we are not tied to any manufacturer or installer network. We have no distribution agreements and no incentive to recommend unnecessary work. That independence is why our audit reports and fault assessments carry weight with insurers, landlords, and procurement teams.
Get started

Discuss your commercial O&M requirements

Tell us about your system and what you need. We will come back with a clear proposal — usually within one business day. No obligation to proceed.

  • Annual O&M contracts from £10/kWp/annum
  • One-off audits available — no contract required
  • Independent — no installer bias, no equipment sales

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