Tell us the inverter brand and model — or send a photo of the unit. Include the fault symptoms and your Newport postcode. We'll confirm the replacement spec and give you a written quote.
Book replacementDiagnose first — free if we can't fixWhen 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.
After GivEnergy went into liquidation, just my luck, my battery started playing up (internal board crashed). Contacted my installer - not interested! Found Solar tech support on a Google search. Sooo glad I found this company! Ron is extremely helpful and has plenty of experience. He soon confirmed what the fault was, and helped me to get my system up and running again. Now moved my GivEnergy account to Solar tech support, and will definitely use again if I have more issues. Unusual to find such a helpful company in these times, no morons reading scripts, just direct contact with the engineer.
What a fantastic service. Had my fault diagnosed within minutes and actually managed to resolve the issue remotely within a few minutes more. This guy is like a “Solar Batman” helping consumers fix their problems using his extensive industry knowledge and expertise. Outstanding service. Thank you so much.
My GivEnergy solar and battery system is failing intermittently, GivEnergy is in administration and so is my installer, so it was a relief to get Ron’s expert advice.
Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.
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.
Newport went solar early. The 2011–2016 feed-in tariff boom put PV on thousands of the city's terraces and semis, and Welsh housing associations rolled out large social-housing PV programmes on top of that across their stock during the FiT period. The inverters from that era — predominantly Fronius, Solis, and Growatt string units — are now 10–15 years old, exactly the window where string inverters start to fail. More recently a wave of GivEnergy hybrid retrofits added battery storage to existing arrays. Both generations now turn up in our inbox from Newport: ageing string inverters dying, and newer GivEnergy units throwing comms or firmware faults.
Age of most Newport FiT-era systems — entering the failure window
Free remote diagnostic — run from our Cardiff base before we drive over
East on the M4 from Cardiff — Newport is our quickest area after Cardiff
Newport's housing stock shapes the job. The dense Victorian and Edwardian terraces of Maindee, Stow Hill, and Pillgwenlly bring chimney shading and tight loft runs that punish a poorly sited string inverter, and the city's position on the River Usk and Severn estuary means salt-laden estuary air accelerates corrosion on enclosures and DC isolators down toward the docks at Pillgwenlly and out along the Caldicot levels. We factor all of that into the replacement spec — siting, isolation, and an enclosure rated for the local environment — rather than just bolting a like-for-like unit back on the same bracket.
Newport's mix splits cleanly between two generations: FiT-era string inverters from the 2011–2016 boom now reaching end of life, and newer GivEnergy hybrid retrofits. Each has a different failure pattern and replacement path.
The dominant battery-retrofit brand across Newport — common on hybrid installs in Caerleon, St Julians, Allt-yr-yn, Malpas, and the Rogerstone estates. Many GivEnergy faults are firmware, CT-clamp, or communication issues rather than hardware failure, so a diagnostic comes first. When the unit has genuinely failed we fit a like-for-like or upgraded Gen2/Gen3 hybrid and re-commission the battery. GivEnergy hub →
Galvo and Primo models from 2011–2014 installs, very common on private homes across Allt-yr-yn, Caerleon, Malpas, and out toward Cwmbran. The Galvo series is now well past its expected lifespan. Typically replaced with a current hybrid unit if the homeowner wants to add battery storage to an existing FiT system.
Mini and 4G models, high volume from FiT-era and housing-association rollouts across Bettws, Ringland, Pillgwenlly, and Maindee. The Mini series typically fails at the relay or DC isolation after 8–10 years — a consistent pattern we see right across South Wales, made worse near the Severn estuary by salt-air corrosion.
Growatt ShineWay and MIN units from 2015–2018 installs reaching end of life, often fitted by smaller South Wales firms since closed — a diagnostic confirms failure vs a fixable comms fault. SolarEdge on premium installs in Caerleon and Allt-yr-yn; SMA Sunny Boy on older high-end systems across the western suburbs.
We also replace Enphase, Sunsynk, Huawei, Fox ESS, SolaX, and all other major UK brands. Full inverter replacement service details →
Single-phase, 2–6 kW. Same-spec or updated equivalent. The bread-and-butter replacement for Newport's FiT-era Fronius, Solis, and Growatt fleet.
Swap a failed string unit for a hybrid — typically a GivEnergy — that manages both solar and battery. The most popular upgrade for Newport homes adding storage to an ageing FiT array.
8 kW+ and three-phase units. Assessed individually. Full pricing details →
All prices include supply, decommission, installation, commissioning, DNO G99 variation, and post-installation report. Newport is served from our Cardiff base, a short M4 hop east — so there's no special travel premium on the standard flat rate. Full inverter replacement pricing and coverage →
Newport's large rental market — the terraces around Maindee, Stow Hill, and the city centre especially — means many owners have inherited solar systems they know very little about. The original installer may have gone bust, monitoring access may be lost, and the FiT registration may not have transferred properly. When the inverter fails, landlords often don't know where to start. We handle the full recovery alongside the physical inverter replacement.
Solar Plants, a Port Talbot installer, was dissolved in February 2022 — leaving systems across South Wales without support. We pick up orphaned installs and see our full installer-recovery guides too.
Installer recovery guides →Full system assessment if you've inherited a solar system and want to know its condition before deciding on repairs or upgrades.
Health check details → Book inverter replacementNewport is served from our Cardiff base — just ~12 miles and ~20 minutes east on the M4 — so it's one of our quickest coverage areas after Cardiff itself, with next-day on-site and a free same-day remote diagnostic. We cover the whole city and the M4 / Severn-crossing corridor either side of it.
We also cover the wider South Wales region from our Cardiff base. All solar services in Newport → · Cardiff → · Swansea →
Drop us the inverter brand, model, and what it's doing wrong — or photograph the data label and send it through. We'll match the replacement to your array, confirm pricing in writing, and schedule the swap. Newport is served from our Cardiff base, around 20 minutes east on the M4, so we offer a free same-day remote diagnostic and next-day on-site.
We use cookies to measure traffic and improve our ads — including sharing limited, hashed details with Meta (Facebook) to measure ad performance. Accept, or decline for essential cookies only. Privacy policy
