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About STS Solar Tech Support · Independent solar engineer · UK-wide

Ronald — why this brand exists

I'm Ronald. Studied MEng Electronic Engineering at the University of York, in UK solar since 2014, founder of STS Solar Tech Support. I built and ran the engineering team at a sales-led solar company that scaled from £700k to £14M a year — commissioning more than 1,000 systems a year at the peak. This brand is my return to the work, focused entirely on the people the industry has left behind.
  • In UK solar since 2014 · 1,000+ systems a year at peak
  • Studied MEng Electronic Engineering, University of York · diagnostics-first, not script-first
  • No manufacturer or installer commissions — engineering only

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.

Steve M · Jun 2026 Google

Our 3 year old GivEnergy batteries froze. They were showing 0% on the app, but they were fully charged. Some how Ron took over our inverter and remotely cured the problem. We live in King’s Lynn, he is in Leeds I believe. Very grateful.

David Lewin · Jul 2026 Google

Ron is a super star. Two months ago my GivEnergy battery failed a firmware upgrade leaving it a brick. My installer couldn't/wouldn't fix it. GivEnergy couldn't/wouldn't fix it. Then they went into administration and all hope was lost. A flurry of emails later and Ron had diagnosed the fault (failed USB flash drive, something I'd suspected) and talked me through resolving it. Two months of nothing resolved in about 3 hours. It's great to work with someone who pays attention to the details, knows that they're doing (not just following a script) and gets stuff sorted without a fuss or up-charging.

Christopher · Apr 2026

Our SolarEdge PV system with LG batteries had its first hiccup after 8 years of hard work. The Inverter failed. Fortunately I found Solar-Tech-Support who diagnosed the problem very quickly, ordered a replacement unit and fitted it shortly after we received the unit from SolarEdge. Very thorough and professional approach. Thank you, a solid 5 star recommendation.

Les Bennett · Jun 2026 Google

Ron responded very promptly regarding my GivEnergy battery issue, his knowledgeable diagnosis was spot on and resolved the issue on first attempt. Would recommend to any and all.

Simon Hill · May 2026

I work for a Solar Company and had a customer with a GivEnergy system that we are not versed in. Ron took the time to explain the issues my customer was having and between us managed to rectify the issues. 10 Stars ... Thanks again STS

Craig Daly · Jun 2026 Google

From self-taught to scaling £700k to £14M

I came at solar from the wrong end of the textbook. Self-taught practical first — pulling things apart, putting them back together, learning what every wire did and why. Then I studied MEng Electronic Engineering at the University of York, which gave me the maths and the circuit-theory grounding to stop guessing and start engineering.

I entered the UK solar industry in 2014 and fell in love with it on the first install. The combination of physics, electronics, software, regulation and real-world consequences was — and still is — the most interesting engineering problem I've worked on.

I joined a sales-led solar company as their engineer. Being the technical person inside a sales-driven culture turned out to be a massive operational edge for them: I built the operations arm from the ground up — the CRM, the website, the technical team, the quotation systems, the commissioning processes. I deliberately stayed out of sales. My job was to make sure every system they sold actually worked, was safe, and stayed working.

The numbers from that era: the company scaled from £700k/year to £14M/year over three years. My team commissioned more than 1,000 systems a year at the peak. I trained engineers, ran the technical recruitment, wrote the commissioning and diagnostic procedures, and made it my job to learn every new inverter and battery the day it shipped. Several of the brands I tested early are now household names.

Why I stepped away — and why I'm back

After the exit I worked for myself for twelve months, then I had to take a couple of years out of work for reasons that aren't this page's business. STS Solar Tech Support is my return.

I came back because the inbox kept finding me. Friends, neighbours, friends-of-friends — all with the same story. Their installer had gone bust. Or stopped answering. Or sold them a system that never worked properly and disappeared with the deposit. They'd done the right thing — chosen renewable energy, paid a five-figure sum, expected it to work — and got left in the dark with a system they couldn't diagnose, an app they couldn't log into, and a warranty pointing back at a company that no longer existed.

That's an industry problem. People who chose to help make the world a better place got screwed over by people who chose to make a quick buck. There needs to be a good side to this industry, and I'm here to be part of it.

What I actually do at STS

STS Solar Tech Support is a deliberately small, deliberately focused operation. I do not sell new solar installations under this brand — those go through the sister brand. STS Solar Tech Support only does diagnostics, repairs, audits, decommissioning, ongoing care, and the technical work nobody else is willing to do.

How that breaks down day-to-day:

  • Remote diagnostic — Free if I can't fix it. from £75 if I can. Most faults are settings, firmware, monitoring, or a CT clamp installed backwards — and most of those I can resolve from my desk in a session.
  • On-site repair — from £245 minimum, complex jobs quoted in writing first. Every visit ends with a written report.
  • Audits + takeovers — for commercial sites, building acquisitions, or where the original installer is gone. Independent reports written for third-party use.
  • Decommissioning + remove-and-reinstall — properly handled including the DNO and FIT/SEG paperwork that everyone else forgets.
  • Solar Health Plan — £10/month ongoing care for the people who want a known technical home for their system.

What independent really means

"Independent" gets thrown around in this industry to mean "we hate our competitor". When STS Solar Tech Support says independent, it specifically means:

  • No manufacturer affiliations. I don't take commission or kickbacks from any inverter or battery brand. If I tell you SolarEdge is the right answer for your situation, it's because the engineering says so — not because I get a margin on it.
  • No installer commissions. I don't refer paid leads to installers. If you ask me which installer to use, I'll give you my honest read on the options, not the one who's paying me this month.
  • No trade-discount habits to protect. If a component needs replacing, I source the right part at the right price — not the one that maxes my discount tier.

The sister brand for new installs (Alectrona) is operationally separate. I keep STS Solar Tech Support clean of cross-sell so when you call me about your system, you're getting engineering — not an upsell pipeline.

Where I go deepest

I work on every major UK inverter and battery brand. If I had to name the ones I've spent the most hours on:

  • GivEnergy — every product, every firmware version, every cloud quirk. I worked with the brand from before it was a household name.
  • Solis — three-phase, hybrid and commercial. Grid-side faults, export-limit weirdness, the lot.
  • Fox ESS — battery diagnostics, BMS faults, commissioning issues that the installer skipped over.
  • Tesla Powerwall — backup configuration, gateway-offline triage, self-consumption mode tuning.
  • SolarEdge — optimiser diagnostics, arc-fault calls, the calls where the installer says "it's fine" and it isn't.
  • Complex diagnostics — the multi-fault, multi-brand, multi-vendor situations where nobody else wants to take the call. Those are the ones I want.

How to work with me

Easiest start: book a remote diagnostic. Free if I can't fix it. We talk through what you're seeing, I review your monitoring data, and we either resolve it on the call or scope the next step in writing before any money changes hands.

For commercial sites, the independent audit or system takeover pages are the right starting point. For ongoing care, the Solar Health Plan.

Or just email hello@solar-tech-support.co.uk and tell me what's happening.

FAQ

Common questions about Ronald and STS Solar Tech Support

Studied MEng Electronic Engineering at the University of York plus a decade of hands-on UK solar work. I joined the industry in 2014 and went on to oversee the engineering team at a sales-led solar company that scaled from £700k to £14M a year over three years. My team commissioned more than 1,000 systems a year at the peak. I wrote the commissioning and diagnostic procedures, trained the engineers, and learned every new product as it shipped.
No — and this is deliberate. STS Solar Tech Support is a diagnostic and repair brand, not an installer. MCS and RECC are designed for new installations under government schemes. We don't fit new systems under this brand. For new installs, our sister brand (Alectrona) does carry MCS registration. For everything else — diagnostics, repairs, audits, decommissioning, ongoing care — MCS is not the right ticket, and we keep this brand focused on what it's actually good at.
The opposite. I rarely see a system I installed — almost every system I touch was installed by someone else, often years ago, often by a company that is no longer trading. That is the work this brand exists for: independent diagnostics on whatever the installer left behind.
GivEnergy, Solis, Fox ESS, Tesla Powerwall, and SolarEdge are the brands I have spent the most hours on. I also work on every other major UK inverter and battery brand — Sunsynk, Growatt, Huawei FusionSolar, Fronius, Enphase, Victron and others. If you can find it on a UK roof, I have probably worked on it.
No manufacturer affiliations, no installer commissions, no trade-discount kickbacks. When I recommend a course of action, it is because the engineering says so. The sister brand for new installs (Alectrona) is operationally separate; this brand does not feed leads to it.
Based in Leeds, West Yorkshire (LS1 3AJ). Remote diagnostic is nationwide — most UK postcodes. On-site work is core Yorkshire + East Midlands with day trips further afield for commercial sites. Travel beyond is quoted before we agree the work.
Phone 07944 877 329, email hello@solar-tech-support.co.uk, or the form on the contact page. Most enquiries are acknowledged same day during business hours. Remote diagnostic bookings come through the book page.
There are excellent installers, excellent products, and excellent outcomes for customers who get the combination right. There is also a tail of installer behaviour that has badly let down customers who did the right thing by going renewable. The industry needs more independent technical voices, more honest communication, and more engineering rigour. This brand exists to be part of that, and to be the technical home for anyone left in the dark.
Call 07944 877 329 Book free diagnostic