Eversolar Inverter Failed — Assessment & Replacement Options UK
Eversolar inverters were widely installed across UK homes in 2010–2013. The Eversolar brand ceased to exist around 2011–2012 when the company merged and was rebranded as Zeversolar. UK owners have had no manufacturer support for over a decade. When an Eversolar inverter fails today — and they are increasingly doing so — replacement with a modern unit is the only available path.
Has your Eversolar inverter failed?
Complete failure, undocumented fault codes, or severe underperformance — we assess Eversolar failures and recommend the right replacement.
Book replacement assessment → See all servicesAbout Eversolar — why your inverter may no longer be repairable
Eversolar was a Chinese solar inverter manufacturer with a UK distribution presence. Their inverters — typically 1–5kW single-phase string units — were installed in volume during the Feed-in Tariff boom of 2010–2013. The Eversolar brand ceased to exist around 2011–2012 when the manufacturer merged and rebranded as Zeversolar, which was subsequently acquired by SMA and itself closed in 2019. Many UK owners have been without manufacturer support for over ten years. Eversolar inverters now aged 12–15 years are experiencing high failure rates, particularly capacitor and power board failures. No spare parts exist and there is no monitoring platform.
The internal collapse of Eversolar as a company left a vacuum with no technical support, no spare parts, and no service pathway for failed units. Unlike some other defunct brands, Eversolar has no third-party specialist service network in the UK — repair is effectively impossible. When an Eversolar inverter fails, the only viable option is replacement with a modern, actively-supported unit. Any investment in repair is not economically rational given the unit's age and the complete absence of support infrastructure.
Why Eversolar inverters fail
The most common Eversolar failure mode. Dead inverter, no lights, no generation. DC bus capacitor failure after 10–15 years of operation. Non-repairable: no spare parts are available.
Eversolar fault codes are undocumented as the manufacturer no longer exists. A fault light with no production usually indicates a protection event caused by aging internal components. Cannot be cleared or diagnosed without replacement.
Still running but producing a fraction of expected output. Capacitor degradation causes MPPT efficiency loss and output clipping. Confirming the loss requires a comparison against calculated roof output.
What should I replace a failed Eversolar inverter with?
When an Eversolar inverter fails, you can replace it with a modern string inverter at similar cost, or upgrade to a hybrid inverter to add battery storage capability. The solar panels and DC cabling remain — only the inverter is replaced. STS assesses your string configuration and recommends the most suitable replacement.
Upgrade to a hybrid inverter with battery storage — most popular choice for Feed-in Tariff-era system upgrades.
View GivEnergy support →Cost-effective direct string replacement or step up to hybrid. Wide compatibility with older panel strings.
View Solis support →Value-for-money string or hybrid replacement. Strong UK installer network and monitoring support.
View Growatt support →Frequently asked questions
No. The Eversolar brand ceased to exist around 2011–2012 when the manufacturer merged and was rebranded as Zeversolar, which itself subsequently closed in 2019. No spare parts have been available for over a decade. The inverter's internal capacitors, IGBTs, and control electronics cannot be sourced. Even if a repair were technically possible in isolation, it would not be economically viable without parts availability. Any functioning Eversolar unit is operating beyond its design life, and replacement is the recommended approach.
Eversolar's fault code documentation no longer exists — the company's service resources are gone. Without access to the service manual, individual codes cannot be interpreted. However, any fault code combined with reduced or no generation on a 12–15 year old inverter almost always indicates a failing power component. A physical inspection confirming DC input and AC output voltages is the most useful diagnostic step before deciding on replacement.
Any modern string or hybrid inverter compatible with your panel string's voltage and current ratings can replace an Eversolar. The panels themselves are unaffected and can typically be used for another 10–15 years. If you want battery storage added at the same time as the replacement, a hybrid inverter is the most cost-effective option. We provide a full replacement specification including string compatibility check before recommending a specific inverter model.
Yes. STS can replace legacy Eversolar inverters with modern string or hybrid inverters, keeping your existing panels and DC wiring in place. You can choose a like-for-like string inverter replacement, or upgrade to a hybrid model with battery storage. Replacement typically costs from £795 for a standard string unit. We provide a full assessment, compatibility check, installation, and commissioning on modern monitoring systems.
Get an Eversolar replacement assessment
Tell us what happened to your inverter — we'll assess the fault and recommend the most suitable modern replacement for your system.
STS supports all major active inverter brands for replacement assessment. We help you choose the right replacement without being tied to any manufacturer.
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