Tell us the inverter brand and model — or send a photo of the unit. Include the fault symptoms and your Derby postcode. We'll confirm the replacement spec and give you a written quote.
Book replacementDiagnose first — free if we can't fixJust had my whole givenergy system go down. Battery and inverter. Ron sorted me out today 3 hours to get it all sorted. Clear instructions and successful. Could not ask for better. Now that givenergy has gone bust i was concerned as to where to go for help. I have found it and can recommend them to all you givenergy users out there. Off for a cup of coffee now😄
Had a problem with my GivEnergy battery which seemed to be a calibration issue. My installer was unable to help so contacted Ron at Solar Tech Support who was immensely helpful. He diagnosed, confirmed and fixed the problem remotely and very speedily. Would thoroughly recommend this company for their knowledge and ability.
Absolutely wonderful. Would recommend without hesitation. I had an issue I was thinking would never be fixed and they fixed it. Help, advice and support every step of the way. I can't recommend highly enough. Thank you so much ⭐
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
Brilliant service from Ron - our GivEnergy inverter stopped working on Tuesday what a nightmare seen as the company who installed it are no longer in business. Through social media I found STS (Ron) he had a new inverter and it was fitted and working by Friday - what I thought was going to be a nightmare turned out not to be!!! Great guy great company - def my go to now for anything solar related - Thank you so much
We were having problems with our inverter, couldn’t get an early response from our installer a stressed conversation between our installer and solar tech support led to a text to us to authorise connection to your company . Ron was a very helpful and knowledgeable man who tried with a bit of difficulty as we are pensioners and very knowledgeable. Spent time on phone without making us feel small.we would recommend this company if you have any problems. Thanks Ron 5 star
Derby's solar did not arrive all at once, and that matters when something breaks. The earliest systems went onto Victorian and inter-war terraces during the FiT boom, running Solis, Growatt or Fronius string inverters. Then came the scheme-era rollouts across the suburban semis, where Fronius IG units fitted by Mark Group are a recurring sight. The newest wave sits on the new-build estates and is mostly hybrid inverters running a battery. The first two eras are the ones producing replacements today.
Solis, Growatt and Fronius string inverters on older terraced stock — now past their design life
Fronius IG units from rollouts including Mark Group, whose installer is long gone
Newer hybrids on the new-builds — usually a configuration fault, not a dead unit
Derby sits at the edge of our on-site coverage, about 90 minutes from our Yorkshire base. Lead times run a day or two longer than they do in our core cities, and we would rather say so than promise a same-day visit we cannot make. The pricing carries no mileage add-on, and most Derby replacements are scheduled within the same week once the quote is approved.
Derby's brand mix maps onto its install timeline more neatly than most cities. Knowing the era usually tells us the inverter before we have seen it.
The scheme-era standard across Derby's suburban semis, a great many of them fitted by Mark Group. The IG series has reached the end of its service life and parts support has gone with the installer. These are usually a straight replacement rather than a repair — see our Mark Group recovery guide.
Common on FiT-era installs across Alvaston, Chaddesden and Spondon. The Mini series typically goes at the relay or the DC isolation after eight to ten years — a pattern we see consistently across every area we cover, not just Derby.
Fitted widely on private FiT-era work in Littleover, Mickleover and the Derbyshire towns. Often installed by smaller regional firms that have since closed. A diagnostic is worth doing first — a fair share of Growatt faults turn out to be communications rather than a failed inverter.
The dominant brand on Derby's newer battery systems. Faults here are more often firmware, configuration or communications than dead hardware, so replacement is the last step rather than the first. Full detail on our GivEnergy support page for Derby.
We also replace SolarEdge, SMA, 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 standard swap for Derby's FiT-era and scheme-era string inverters.
Replace a failed string unit with a hybrid that runs both solar and battery — the sensible move if storage is on the cards for an older Derby system.
8 kW+ and three-phase units. Assessed individually. Full pricing details →
All prices include supply, decommission, installation, commissioning, DNO G98/G99 paperwork, and post-installation report. Same pricing as our core Yorkshire area — no additional charge for Derby.
Derby's housing turns over steadily, and solar-equipped homes change hands with the panels but rarely with the paperwork. On a scheme-era system the original installer has often gone, the monitoring account belongs to a previous owner, and nobody can say whether the FiT was ever transferred. When the inverter then fails, the replacement is the easy part — the recovery around it is what takes the knowledge.
A common name on Derby's scheme-era systems, no longer trading. What your options are now, and what we can still recover.
Mark Group recovery guide →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 replacementWe cover Derby and the surrounding Derbyshire towns. Derby is at the edge of our on-site coverage, about 90 minutes from our Yorkshire base, so lead times run slightly longer than our core area, but the pricing is identical and most replacements are scheduled within the same week.
For Nottingham city see our Nottingham inverter replacement page. Full coverage map → · All solar services in Derby →
Send the inverter brand, model, and what it is doing wrong — or photograph the data label and pass that through instead. We'll match the replacement to your array, confirm pricing in writing, and book the swap. Derby gets the same rates as our Yorkshire heartland with no mileage add-on.
Due to unprecedented demand we’re currently only carrying out on-site work in Yorkshire, and replies are taking up to 7 days. Remote diagnostics continue for the whole UK as normal.
Every message is read and answered, so please don’t send it twice; that only slows the queue.
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