Solar Inverter Replacement Across Scotland

Yes. Upgrading from a string inverter to a hybrid inverter is one of our most popular services and allows you to add battery storage to your existing solar PV system. Brands like Huawei, Fox ESS, and GoodWe offer hybrid inverters that manage solar generation, battery storage, and grid import/export. We can supply and install a complete hybrid inverter and battery package.

Interest-free credit up to £30,000, subject to status. Any finance is arranged and provided by our authorised partners, not by Scottish Energy Efficiency. Contact us for details.

Call us on 0141 230 0198 or fill in our online form. We arrange a no-obligation survey (often starting with remote diagnostics), then provide a written, no-obligation quote covering the replacement, price, and timeline.

Common signs include a red or orange fault light on the inverter, a significant drop in energy generation compared to previous years, unusual buzzing or humming noises, error codes on the display, or the inverter not powering on at all. If your system is generating noticeably less than it used to — check your generation meter or monitoring app — the inverter is the most likely culprit. We offer remote diagnostics to help identify the issue before booking a site visit.

Most string inverters have a lifespan of 10 to 15 years, which is shorter than solar panels (which typically last 25 to 30 years). This means most solar PV systems will need at least one inverter replacement during their lifetime. Hybrid inverters from manufacturers like Huawei and Fox ESS are expected to last 15+ years. We recommend proactive replacement when an inverter reaches 10 to 12 years, rather than waiting for it to fail completely.

Yes, this is one of our most popular services. Upgrading to a hybrid inverter allows you to add battery storage to your existing solar PV system. Brands like Huawei, Fox ESS, and GoodWe offer hybrid inverters that manage solar generation, battery storage, and grid import/export intelligently. The upgrade typically costs from £1,200 for the inverter alone, or we can supply and install a complete hybrid inverter and battery package.

No, replacing a faulty or end-of-life inverter does not affect your Feed-in Tariff payments. Your FiT contract is linked to your solar panel installation, not the inverter. However, it is important that the replacement is carried out through an MCS-certified installer and that the generation meter is reconfigured correctly. We install through MCS-certified partners who handle all of this as part of every inverter replacement.

A straightforward like-for-like string inverter replacement typically takes 2 to 3 hours. If you are upgrading from a string to a hybrid inverter, or if additional wiring work is needed, it may take 3 to 5 hours. Emergency replacements follow the same timescales once the replacement unit is sourced. We aim to minimise your system downtime and complete all work in a single visit.

Absolutely. We replace inverters on any solar PV system, regardless of who originally installed it. Many customers come to us because their original installer is no longer trading or unable to provide aftercare. We assess the entire system during the replacement visit, not just the inverter, to ensure everything is working safely and efficiently. Our MCS-certified installation partners cover all makes and models.

We supply, and our partner installs, inverters from all major manufacturers including Huawei, Solis, GoodWe, Fox ESS, SolarEdge, and SMA. For hybrid upgrades, we most commonly recommend Huawei and Fox ESS due to their excellent monitoring platforms, reliability, and compatibility with a wide range of battery systems. We will always recommend the best option for your specific system and requirements.

The 0% VAT rate on solar and battery installations applies until March 2027, which includes hybrid inverter upgrades when combined with battery storage. A like-for-like string inverter replacement on an existing system is not typically covered by the 0% rate. We can confirm the VAT treatment for your specific job when we provide your quote.