Growatt MIC series are single-phase grid-tie inverters designed for home and small commercial installations, where fast installation, stable operation, and clear diagnostics are key. What sets them apart is their compact, lightweight design facilitating single-person installation and transformerless topology, which contributes to high efficiency and quiet operation. Depending on the MIC variant, they offer 1 or 2 MPPT - this means better energy harvest control when panels are on different roof pitches, have different orientations, or partial shading occurs. The high European efficiency translates to truly excellent results under typical operating conditions in Poland, not just in ideal lab settings.
A plus is monitoring within the Growatt ecosystem - with options for WiFi or Ethernet communication (via dedicated modules) and monitoring via the app and portal. The MIC series is not hybrid, so it is not designed for direct cooperation with energy storage systems - for that purpose, the manufacturer offers other product lines. You will find network security and anti-islanding features standard, along with optional AFCI, and a full set of conformity certificates and warranty with extension possibilities.
Ranking
Price offers
| Shop | Country | Price | Per kW | Stock | Offer updated | Link to shop |
|---|---|---|---|---|---|---|
| Sklep Soltech | Poland | 1 191.07 zł net | 595.53 zł/kW | Not stated | 21h ago | Visit shop |
Specifications
Pros and cons
With a mass of approximately 6.0-6.2 kg and dimensions of 138×274×254 mm, the MIC TL-X series is among the lightest 1-phase network inverters in the 0.6-3.3 kW range. Installation by a single person without additional equipment is feasible, which reduces labor costs in small residential installations.
The non-transformer topology allows for a maximum efficiency of 97.6% (TL-X models 750-3300, according to ENF Solar datasheet). Under typical Polish solar conditions (where diffuse light dominates), an efficiency of around 96.5% translates into a significantly higher annual energy yield compared to older transformer-based systems.
The availability of two independent MPPT (Maximum Power Point Tracking) controllers in certain models allows for the use of roof sections with different orientations or shading, without significantly reducing the overall performance of the system - a key feature for typical pitched roofs in single-family homes.
Optional arc fault circuit interrupter (AFCI) protection allows compliance with the requirements of certain insurers and investors who demand a higher level of safety - a feature that is rare among inverters in the sub-3.3 kW segment.
Distribution and after-sales service are provided by PVGroup.pl / Growatt.tech, with 7-day availability. This positions Growatt among the leading Chinese manufacturers in terms of after-sales support on the Polish market - a significant advantage when an installer has a large portfolio of inverters.
Growatt does not appear on the BNEF Tier 1 Power Inverter Manufacturers list (verified in the context of the product: tier_1_bankable: false). For projects requiring non-recourse financing or bank guarantees, this could represent a formal barrier in commercial PPA agreements or projects involving investment funds.
According to data from igrowattinverter.com, newer Growatt models (2018-2025) have a failure rate of 2-5%, while premium brands (SolarEdge, Fronius) maintain a rate of 1-3%. The difference for small residential installations is minimal, but it can be significant for larger fleets.
Unlike some competitors (such as SolarEdge, which includes a built-in communication module), the MIC series does not have standard network connectivity - it requires the purchase of a separate Wi-Fi dongle or Ethernet adapter, which adds an additional cost of approximately 150-300 zł and introduces another potential point of failure in the installation.
Alternatives
About the MIC series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.