Ron made more sense in 20 mins than our installer has done over the last 12 months There is a jungle out there and you need someone like Ron to give a comprehensive overview and solution
David · May 2026 Trustpilot
Defunct brand · Solar River inverter replacement
Solar River Inverter Failed — Assessment & Replacement Options UK
Solar River inverters were installed across thousands of UK homes in the 2010–2015 period. The manufacturer no longer operates and no spare parts or warranty support is available. When a Solar River inverter fails, replacement with a modern unit is usually the only viable option — but a correct assessment first avoids unnecessary spend.
Free remote diagnostic no fix, no fee · replacement from £995 if needed
Has your Solar River inverter failed?
No lights, no output, or fault codes with no way to diagnose them — we assess Solar River failures and recommend the right replacement.
Book replacement assessmentSee all servicesCannot say enough how impressed I have been with Ronald at Solar Tech Support. When faced with not sure what to do next, I was recommended his services via a GivEnergy Community Group. Within an hour my system was back up and running again. Phew!!
Emma Fletcher · Oct 2026 Google
Genius when it comes to solar and off grid installations we spent days trying to work out what was causing our problems and Ron resolved it in less than an hour! Cant reccomend enough
Ben Carroll · Aug 2026 Trustpilot
As a Givenergy customer I have been forced to get familiar with my system since it developed battery failure. I managed to find someone to repair the battery and managed to do the physical install and connection. I reached out to Ron at Solar Tech Support and with the help of whatsapp and many screenshots of the system, cloud and App Ron managed to get me through getting it all up and running. Big thanks to Ron.👏👏
Mark Calvert · Sep 2026 Google
Amazing! I was having trouble with a flat GivEnergy battery and solar panels not working. I contacted through WhatsApp and we managed to get it all sorted within a couple of days! Super fast service. I can’t thank you enough for your help when my installer didn’t want to know and GivEnergy has gone in to administration! I know where to go if anything happens again!
Chrissy For · Oct 2026 Google
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.
Alison F. Cockerill · Jun 2026 Google
About Solar River — why your inverter may no longer be repairable
Solar River was a Chinese solar inverter manufacturer that supplied large volumes of single-phase string inverters to UK installers between approximately 2010 and 2015. Models ranged from 1.5kW to 6kW. The company ceased UK operations around 2014–2015. No replacement parts are available through any UK distributor, the monitoring portal is defunct, and the manufacturer no longer provides any technical support.
Solar River inverters that are still generating are typically 10–15 years old — approaching or beyond the design lifespan of power electronics. The most vulnerable components are DC bus capacitors (which degrade with age and heat cycles) and IGBT modules. When they fail, there is no economic repair pathway — replacement with a modern inverter from an active manufacturer is the correct response.
Common Failures
Why Solar River inverters fail
Complete power loss
No display, no lights, no output. Most common failure mode for aged Solar River units. Usually caused by DC bus capacitor failure or power board fault. No spare parts are available to repair.
Display fault / erratic readings
Display flickering, incorrect readings, or display dead with unit still generating. Indicates control board or display module failure. Confirmation that the unit is at end of life.
Progressive output reduction
The inverter continues to run but generates significantly less than expected. Capacitor degradation causes efficiency loss before eventual failure. A generation comparison using roof calculation helps quantify the loss.
Replacement Options
What should I replace a failed Solar River inverter with?
When a Solar River inverter fails, you have the choice of a like-for-like string inverter replacement, or an upgrade to a hybrid inverter that adds battery storage capability. The choice depends on your export arrangements, grid connection type, and whether you want to add a battery in the future. A replacement assessment from STS includes a string voltage compatibility check, a recommendation for a suitable modern inverter, and a cost estimate.
Hybrid + Battery
GivEnergy
Upgrade to a hybrid inverter with battery storage — most popular choice for Feed-in Tariff-era system upgrades.
View GivEnergy support →String + Hybrid
Solis
Cost-effective direct string replacement or step up to hybrid. Wide compatibility with older panel strings.
View Solis support →String + Hybrid
Growatt
Value-for-money string or hybrid replacement. Strong UK installer network and monitoring support.
View Growatt support →Replacement options
STS supports all major active inverter brands for replacement assessment. We help you choose the right replacement without being tied to any manufacturer.
Browse all active brandsFrequently asked questions
In almost all cases, no. Solar River stopped trading in the UK around 2014–2015 and no spare parts are available. DC bus capacitors — the most common age-related failure point — are specific to each inverter design and cannot be sourced. IGBT modules and power boards are similarly unavailable. If a Solar River unit has failed, replacement with a modern inverter is the only viable path. We can assess the fault and confirm whether replacement is the correct recommendation before you commit to any spend.
Any modern string or hybrid inverter with a compatible input voltage range can replace a Solar River. The solar panels themselves are unaffected — only the inverter changes. We check string Voc and Isc ratings against the new inverter's specifications before recommending a replacement. Popular UK replacements include Growatt, Solis, SolarEdge, and GivEnergy — the right choice depends on whether you want to add battery storage.
No. Solar River ceased UK operations around 2014–2015. Any warranty period has long since expired and there is no manufacturer to contact. For inverters less than 10 years old that were installed by a registered MCS installer, there may be a route through the Microgeneration Certification Scheme or the installer's workmanship guarantee — but this is unlikely to cover inverter replacement for a brand that no longer exists.
Yes. STS can replace legacy Solar River inverters with modern string or hybrid inverters, allowing you to reuse your existing panels and DC wiring. We assess your panel string configuration, recommend a suitable modern replacement, and handle the complete installation and commissioning. Replacement typically costs from £995, and you can choose a direct string replacement or upgrade to a hybrid inverter with battery storage capability.
Get a Solar River replacement assessment
Tell us your system size and how it failed — we'll confirm whether replacement is needed and recommend the most suitable modern inverter for your installation.
- Independent — not affiliated with Solar River
- No fix, no fee
- On-site visits available
Service notice
We’re busier than ever. Thank you for your patience.
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.
Ronald Director, Solar Tech Support
On-site: Yorkshire only, for now
Remote: UK-wide, as usual
Remote fix: £125 if we fix it, no charge if we don’t
Replies: within 7 days
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