Absolutely wonderful support. I have a GivEnergy system that was installed in 2022, and a firmware update was flagged in the app, so I proceeded to update the software .... and immediately regretted it, as my inverter came up with an error, and was not working at all! With no GivEnergy support available, and my installer saying there was nothing he could do, I googled help, and found Ron. What a stroke of good luck! Submitted an on line enquiry late morning, and received phone call just after 5 pm, and later that evening Ron was able to supply me with old firmware no longer available on the GivEnergy web site. I was then able to update the firmware using a GivEnergy youtube video as reference, and hey presto the system was back up and running. One further slight adjustment by Ron and we are back normal. What a relief. I have no hesitation in recommending Solar Tech Support if you have a problem. Great service! And if you are a GivEnergy system owner, whatever you do, DO NOT UPDATE FIRMWARE!
Solar Repair & Support in Swansea
- On-site repair from £245
- Inverter replacement £795
- Free remote diagnostic — written report within 24 hrs
Tell us what's happening with your system. We'll confirm whether it needs a remote diagnostic or an on-site visit, and give you a clear price before any work starts. Swansea is covered from the Cardiff side of the M4 — next-day to two working days for urgent faults, free remote diagnostic the same day.
Book a visitFree remote diagnostic · no fix, no feeIndependent — not affiliated with any installer or manufacturer.
Ron took me through a diagnostic to confirm my GivEnergy Inverter had a fault. A common one as it turns out with the AC Inverter. As GivEnergy is defunct there is no immediate fix, aside from sourcing 2nd hand replacement. It may be that a fix becomes available over the summer which would make a lot of GivEnergy customers happy (Again)
Massively massively recommended. We had a big battery array (49kW across three phases) put in four years ago. c £35k cost. It’s been a total nightmare for many reasons, not least 1. our installer being totally useless and unresponsive and 2. Givenergy, our battery supplier, going bust. Long story short it had never worked anywhere near properly despite countless hours on phones and emails; the best we’d achieved was one third of the batteries working. Rather than write it off, I asked a PM friend to try to source someone who could come on site and review and revive the system. He found Solar Tech Support and Ron. Ron assured us he was the man to get it going again. After so many years of pain, I was not convinced but, true to his word, five hours later it was up and running. Lovely chap, super knowledgeable with a support team to lean on who are also clearly super technical. I honestly didn’t think there was much chance of getting this array going ever again so was absolutely delighted when Ron and team pulled it off. Bravo!
Contacted Solar Tech Support when trying to understand what my Givenergy inverter problem might be and what might be my options. Received good/honest advise which backed up my thoughts.
Prompt and useful support regarding my Sunsynk system lack of performance. Ronald simplified the technical issues to make them understandable. Many thanks, looking forward to follow up.
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.
Solar in Swansea and the Gower
Swansea — the second city of Wales, wrapped around Swansea Bay — has a solar install base that splits two ways. There are the dense Victorian and Edwardian terraces of Uplands, Brynmill, and St Thomas carrying compact FiT-era arrays, and there are the exposed coastal and rural properties out on the Gower peninsula, where salt air and driven rain off the bay are unusually hard on the electrical side of a PV system. Layered on top is a wave of council and Welsh Government grant installs across estates in Morriston, Penyrheol, and Sketty, plus a steady stream of GivEnergy battery retrofits. The panels are usually fine; it's the inverters, isolators, and battery setups that need attention.
Uplands, Brynmill, Townhill, and St Thomas are full of tightly packed terraced and semi-detached homes carrying 2–4kW systems fitted during the Feed-in Tariff boom of 2011–2015. Narrow roofs, chimney shading, and tight spacing between properties are common. These systems typically run Solis, Fronius, or Growatt string inverters with standard polycrystalline panels — straightforward installs, but the inverters are now well past the 10-year mark and starting to fail.
The Gower peninsula is an exposed coastal Area of Outstanding Natural Beauty. Properties in Mumbles, Bishopston, Pennard, and along the bay face salt-laden air and wind-driven rain that most inland systems never see. Salt accelerates corrosion in DC isolators, junction boxes, and roof-level MC4 connectors. The panels handle the marine exposure fine, but the switching and connection components degrade noticeably faster here and need checking more often than a sheltered inland install.
Swansea has seen large-scale council and Welsh Government solar and battery programmes across social housing — estates in Morriston, Penyrheol, Sketty, and Clydach among them — alongside privately arranged ECO and grant installs. Many of these homeowners received little documentation, no monitoring login, and minimal explanation of how the system works. When something goes wrong or the property changes hands, they often don't know what they have or who to call.
A growing number of Swansea homeowners with existing FiT-era arrays are adding battery storage — most often GivEnergy. Retrofitting a battery onto a system that was never designed for one creates integration challenges: CT clamp placement and direction, hybrid inverter compatibility, eco mode, charge scheduling, and tariff optimisation all have to be configured correctly. We see a lot of these around Killay, Sketty, and Gorseinon where the battery is physically installed but was never properly set up to actually save money.
What we do in Swansea
Swansea sits at the western reach of our South Wales coverage, worked from the Cardiff side of the M4. The mix of dense city terraces, suburban semis, and exposed Gower coastal properties creates a wide range of system types and fault patterns. We remote-diagnose before every visit. No call-out fees. All pricing confirmed in writing.
Fault-finding and on-site repair — inverter failures, DC isolator trips (common on salt-exposed Gower systems), generation drops, battery faults. From £245.
Fault diagnosis →Complete replacement — old unit removed, new inverter installed, configured, and tested. Ideal for the ageing FiT-era string inverters across Swansea's terraces. £795.
Inverter replacement →Emergency power supply installation — keep essentials running during a power cut using your existing battery. Useful for exposed Gower and rural properties on the edge of the network. From quoted price.
EPS installation →Preventative annual service — generation analysis, inverter diagnostics, DC isolator and connector check (critical near the coast), firmware updates. Written report within 48 hours. From £195.
Annual maintenance →Moved into a Swansea or Gower property with panels? We visit, identify the full system, set up monitoring, check tariff and warranty status, and hand you a written report. From £295.
On-site walk-through →Remote fault-finding — we access your monitoring portal, analyse generation and fault data, and check firmware. Written report usually within 24 hours. Free — £75 only if we fix it remotely.
Remote diagnostic →What goes wrong with solar systems in Swansea
Swansea's install base is dominated by FiT-era systems from 2011–2015, with the added complication of an exposed coastline on the Gower and a wave of battery retrofits that were never set up properly. These are the faults we see most.
The bulk of Swansea's domestic solar — across Uplands, Brynmill, Sketty, Morriston, and Gorseinon — was installed during the Feed-in Tariff boom between 2011 and 2015. These systems typically run Fronius, Solis, or Growatt string inverters that are now well past the 10-year mark. Symptoms: blank display, no generation, intermittent fault codes, tripping the consumer unit. The panels are almost always fine. Replacing the ageing inverter with a modern hybrid unit restores full output and adds battery-ready capability. Inverter replacement →
DC isolators are the weakest point in any solar installation, and they fail faster in salt air. Systems in Mumbles, Bishopston, Pennard, and along Swansea Bay see accelerated corrosion of isolators, junction boxes, and MC4 connectors from salt-laden air and wind-driven rain. A failed DC isolator can trip the whole system or, in the worst cases, present a fire risk. We replace these as a matter of course during maintenance visits on coastal properties and carry stock of the most common types. Fault diagnosis →
Plenty of Swansea systems were fitted by installers that have since stopped trading — across both private FiT installs and grant-funded work. Homeowners are left with systems they don't fully understand, locked monitoring accounts, missing MCS certificates, and no clear warranty route. The systems are usually still generating — they just have nobody managing them. We handle full recovery: monitoring transfer, documentation rebuild, warranty verification, and ongoing maintenance. Installer gone bust guide →
Homeowners adding a GivEnergy battery to an existing FiT-era system across Swansea often find it isn't saving them money. The system charges during the day but imports from the grid during peak evening hours instead of discharging the battery. The cause is almost always configuration: CT clamp direction or placement, eco mode settings, charge schedule timing, or a firmware update that has reset values. We diagnose and fix this remotely in most cases. GivEnergy support →
Your Swansea installer has closed — we take over from here
South Wales has seen its share of solar and energy-efficiency installers stop trading, and the wind-down of grant schemes like ECO4 has put more of them under pressure. If your installer has gone into administration or simply disappeared, it doesn't matter who they were — the recovery process is the same: monitoring transfer, documentation rebuild, warranty verification, fault diagnosis, and ongoing maintenance. You don't need the original installer to keep your system running.
The Swansea-based installer entered administration in January 2026 and ceased trading immediately, after the ECO4 grant scheme it relied on ended. It doesn't matter who installed yours — if they've closed, we step in.
Consumer Energy Solutions guide →When an installer closes, monitoring portals and app accounts are often left in their name. We transfer ownership of your GivEnergy, SolarEdge, or other portal into your own account so you can see your system again.
Monitoring transfer →No MCS certificate, no handover pack, no idea who to claim warranty from? We rebuild the documentation, identify every component, and verify what warranty cover still stands directly with the manufacturer.
Documentation help →Installer not listed, or you're not sure who fitted it? The recovery process is the same regardless of who installed your system. Full installer gone bust guide or book a call.
GivEnergy, Fronius, Solis — we fix them all in Swansea
GivEnergy is the brand we're called out to most across Swansea — battery retrofits that were installed but never configured to save money. Alongside it, the city's older systems run Fronius and Solis string inverters from the FiT era. Each brand has different diagnostic methods, firmware management, and warranty processes — we know them all, with no manufacturer bias.
Areas of Swansea and the Gower we cover
We cover Swansea and the Gower peninsula, worked from the Cardiff side of the M4. All at the same pricing as the rest of our coverage — the only difference is a slightly longer lead time.
Out on the Gower at Pennard, or over towards Llanelli or Neath? If you're in the Swansea area we may still cover you. Get in touch and we'll confirm availability. We also cover Cardiff and Newport along the M4 corridor.
Just bought a house in Swansea with solar panels?
Swansea and the Gower have thousands of homes with solar fitted during the FiT era and under more recent grant schemes. When these properties change hands, the new owner typically receives no documentation, no monitoring access, and no explanation of the FiT payments, inverter brand, or warranty status. We visit, identify every component, check performance, set up monitoring in your name, and hand over a written report covering everything — including the salt-exposure points worth watching if you're near the coast.
Solar repair in Swansea — common questions
Solar panels not working in Swansea? Tell us what's happening.
Describe the fault — what you're seeing (or not seeing), the brand if you know it, when it started. We'll come back with a clear plan and price, usually same day. Swansea and the Gower are within our extended coverage from the Cardiff side of the M4 — same pricing, slightly longer lead time.
- On-site repair from £245 · inverter replacement £795
- Solar panel maintenance from £195
- Free remote diagnostic — written report within 24 hours
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Got a solar fault or need a quick answer? Drop us a message — we usually reply within a few minutes. Mon–Fri, 9am–7pm.