Brilliant support to get my solar battery working again. I didn’t expect help on a Saturday but Ron answered the phone, listened and sent me the information I needed to get it going, answered questions etc. A brilliant service I’d happily recommend.
Ron was brilliant. He really tried to help. He spent hours trying to fix our GivEnergy AIO and ultimately it became apparent that it needed parts to fix the BMS management system. As there appears to be no replacement parts available on the market, he gave excellent advice on what options are now available to move forward. He is incredibly helpful and knowledgeable.
Called back within a day and gave good advice.
Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended
Big thanks to Ron. He was incredibly patient and helpful over the phone, taking the time to walk myself and the installer through every troubleshooting step. Through lots of testing he figured out the issue was definitely a hardware issue, which allows us to consider our next steps. Support fees are clear and they operate a “no fix no fee” policy. It is rare to find that kind of honesty combined with dedicated phone support nowadays. I highly recommend Ron, if you need help with your solar system don’t hesitate to give him a call.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
Brilliant support to get my solar battery working again. I didn’t expect help on a Saturday but Ron answered the phone, listened and sent me the information I needed to get it going, answered questions etc. A brilliant service I’d happily recommend.
Ron was brilliant. He really tried to help. He spent hours trying to fix our GivEnergy AIO and ultimately it became apparent that it needed parts to fix the BMS management system. As there appears to be no replacement parts available on the market, he gave excellent advice on what options are now available to move forward. He is incredibly helpful and knowledgeable.
Called back within a day and gave good advice.
Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended
Big thanks to Ron. He was incredibly patient and helpful over the phone, taking the time to walk myself and the installer through every troubleshooting step. Through lots of testing he figured out the issue was definitely a hardware issue, which allows us to consider our next steps. Support fees are clear and they operate a “no fix no fee” policy. It is rare to find that kind of honesty combined with dedicated phone support nowadays. I highly recommend Ron, if you need help with your solar system don’t hesitate to give him a call.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
The system is behaving unusually and neither the manufacturer support line nor your own diagnostics have identified the cause. You need a second opinion from someone who works at the engineering level — not a scripted helpdesk. We handle the diagnostic and give you a clear answer.
You install — you don't want to be the first call when a battery stops charging eighteen months later. We provide structured aftercare support for your customer base: fault triage, remote diagnostics, and on-site repair. Referral and white-label arrangements available.
Customer dispute, warranty claim, or a post-install snag check that needs to be done by someone other than the installing team. We provide independent engineer's reports that are accepted by all major UK manufacturers and suitable for use in formal dispute processes.
These services are available directly to UK solar and battery installers. All work is delivered by experienced solar engineers — not subcontracted.
When your own diagnosis hasn't found the cause, we take over. We review all available monitoring data, error logs, and system configuration to identify the root fault. You receive a written report with the cause, evidence, and recommended resolution — typically within 24 hours of receiving access.
An independent on-site inspection after installation is complete. We check physical quality, commissioning, settings, CT clamp orientation, documentation, and cosmetic finish. Written snagging report gives your customer confidence — and protects you against post-handover disputes.
A formal independent engineer's report to support a manufacturer warranty claim or customer dispute. We diagnose the fault, establish whether it falls within manufacturer warranty terms, document the evidence, and produce a structured written report. Accepted by GivEnergy, Sunsynk, SolarEdge, Growatt, Solis, and all other major UK manufacturers.
Complex fault you can't crack, commissioning issue on a new install, firmware question, or manufacturer escalation that's going nowhere. We provide engineer-to-engineer technical support remotely. Confidential — your customer never knows.
A structured arrangement where we handle fault calls, diagnostics, and maintenance visits for your customer base — under your brand or ours. We triage incoming customer issues, resolve what we can remotely, and escalate to on-site where needed. Suitable for installers who want to offer a guaranteed aftercare service without carrying the overhead. Pricing based on customer volume.
Discuss partnership terms →We provide independent O&M contracts, emergency repair, system takeover, and performance audits for commercial solar installations. If your commercial clients need ongoing maintenance or you want to offer aftercare without carrying the overhead, we can work together.
No account setup, no minimum commitment for one-off jobs. Ongoing partnerships are agreed in writing before any work begins.
Use the form below or call us directly. For fault diagnostic overflow, tell us the brand, model, what the system is doing, and what you've already checked. For inspections or reports, give us the address and any relevant customer background. For aftercare partnerships, outline your customer volume and what you need covered.
For diagnostics and inspections, we confirm the cost before starting — no surprises. For ongoing partnerships, we agree a clear arrangement in writing: what's included, turnaround expectations, pricing, and escalation process. We don't start work until both sides are clear.
Remote diagnostics come with a written findings report. On-site inspections include a condition report with photographs. Warranty reports are structured for manufacturer submission. You get everything in writing — you decide what to share with your customer.
STS was founded by an engineer who spent years in the solar industry at scale — running technical support teams and handling the kinds of faults that don't appear in the manual. We've seen most failure modes across most major brands. When you send us a fault you can't resolve, you're not going to a helpdesk — you're going to someone who has dealt with the same hardware.
We are genuinely independent. We are not tied to any manufacturer or distribution network, and we have no reason to recommend a fix that isn't the right fix. That independence is why our warranty reports carry weight.
We understand that working with an outside technical partner requires trust. Anything you share with us — customer details, site specifics, fault history — stays confidential. We don't contact your customers directly unless that's been agreed. We don't take on ongoing relationships with customers you've referred to us for a one-off job.
For installers who want a long-term aftercare partner, we're structured to handle that at volume — with agreed SLAs, a clear escalation path, and the engineering capability to back it up. Read more about how we work.
Tell us what you need. We'll come back with a clear scope and cost — usually same day. No obligation to proceed, no account setup required for one-off jobs.
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