The Growatt MIN TL-X series are single-phase on-grid (grid-tie) inverters designed for modern home installations and small commercial systems, where high yield, compact housing, and reliable operation matter. The application of two independent MPPTs simplifies the design of two strings with different orientations or tilts and improves system performance during partial shading- the inverter can more flexibly “find” the best operating point. High European efficiency means fewer losses in real-world grid conditions, translating to better annual energy production. Advanced communication also adds value: monitoring via an app and the option to choose WiFi or LAN modules simplifies system control and diagnostics. The series prioritizes safety with over-voltage protection on the DC side, and in selected configurations, also features arc detection. Available are CE conformity declarations and warranty extension options, which are appreciated by users expecting reliable operation.
Ranking
Specifications
Pros and cons
Growatt achieved the number 1 position globally for the supply of single-phase PV inverters in 2024 (according to S&P Global), and the 4th position overall according to Wood Mackenzie (589 GW of global shipments). The scale of production translates into greater availability of spare parts and continued technical support over the long term.
The maximum efficiency of the 2500-6000 TL-X models is 98.4%, while European efficiency ranges from 97.1-97.6% depending on power. This places the series among the top performers in the mid-market segment, comparable to Fronius Primo and SMA Sunny Boy, and significantly higher than cheaper competitors (e.g., Deye SUN-xK-G05 with an efficiency of approximately 96.8%).
Two separate trackers with a wide voltage range of 100-600 V DC allow for the operation of two separate strings with different orientations or inclines. In practice, this reduces losses due to asymmetrical shading and increases the flexibility in designing rooftop installations with multiple roof angles.
The series supports either WiFi or LAN modules (ShineWiFi-X / ShineLink), and cloud monitoring via the ShineServer/ShinePhone platform is free for the entire lifespan of the device. Competitors (e.g., SMA with ennexOS) in some models require a subscription after the warranty period expires.
The weight of the models ranges from approximately 11.5 to 13.5 kg, and the IP65 protection rating allows for direct installation outdoors. This eliminates the need for a two-person installation crew, which reduces labor costs in typical prosumer installations.
Growatt is not listed on the BNEF Tier-1 bankable list for inverters (context: tier_1_bankable: false). In projects with bank financing or for installations >50 kWp that require technical insurance, some institutions may require inverters from manufacturers with this status, which could necessitate a change in the chosen inverter or additional negotiations with the financier.
Documented data indicates that the average time to resolve warranty claims is between 23 and 40 days, compared to 5-10 days for SMA and Fronius. According to independent sources, the effectiveness rate of resolving claims through the hotline is approximately 22%, which, in the event of a breakdown during the production season, could mean a multi-week shutdown of the installation.
Alternatives
About the MIN TL-X series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.