The Growatt MOD 3-10KTL3-XH series are three-phase hybrid (battery-ready) inverters designed for grid-connected installations today, with the flexibility to be expanded with energy storage in the future. The key advantage is its flexibility - the device supports battery operation (e.g., APX) and can perform export limitation functions, facilitating adaptation to local requirements. ([pv-magazine.com](https://www.pv-magazine.com/2022/03/30/growatt-unveils-new-inverter-for-residential-applications/?utm_source=openai))
Built-in 2 MPPT controllers help better utilize energy gains from panels with different roof orientations or partial shading - each tracker independently optimizes the string's performance. In practice, this means more stable energy production under challenging conditions. ([pv-magazine.com](https://www.pv-magazine.com/2022/03/30/growatt-unveils-new-inverter-for-residential-applications/?utm_source=openai))
High European efficiency translates to real returns in typical operating conditions in Poland, not just in ideal laboratory settings. ([pv-magazine.com](https://www.pv-magazine.com/2022/03/30/growatt-unveils-new-inverter-for-residential-applications/?utm_source=openai)) Options for monitoring and communication (including WiFi, RS485, USB) simplify diagnostics and control via an app. ([growatt.pl](https://growatt.pl/produkt/inwertery-fotowoltaiczne-growatt-mod-8000tl3-x-pl-9000tl3-x-pl-10ktl3-x-pl/?utm_source=openai)) The series is primarily aimed at modern homes and small commercial buildings, where future expansion and convenient energy management are key. ([pv-magazine.com](https://www.pv-magazine.com/2022/03/30/growatt-unveils-new-inverter-for-residential-applications/?utm_source=openai))
Ranking
Price offers
| Shop | Country | Price | Per kW | Stock | Offer updated | Link to shop |
|---|---|---|---|---|---|---|
| Sklep Soltech | Poland | 4 654.08 zł net | 517.12 zł/kW | Not stated | 20h ago | Visit shop |
| nordsolar.fi | Finland | 1 520 € incl. VAT | 168.89 €/kW | In stock | 22h ago | Visit shop |
Specifications
Pros and cons
The maximum efficiency, as confirmed by the datasheet (model MOD 10KTL3-XH), is 98.6%, placing this series among the leading three-phase inverters for private consumers. An efficiency of 98.3-98.6% in European conditions translates to a significantly higher annual yield in Poland, under variable cloud cover, compared to devices with efficiencies of 97-97.5%.
The XH architecture allows for operation in a purely on-grid configuration from day one, and connecting Growatt APX (HV) batteries in the future does not require replacing the inverter - simply expanding the system. This is a significant advantage for investors who plan to install energy storage but want to postpone the investment.
Two independent MPPT (Maximum Power Point Tracking) controllers with a voltage range of 140-1000 V DC and a maximum input current of 16 A/MPPT allow you to connect two separate strings with different orientations or levels of shading. Each controller independently optimizes its operating point, which significantly reduces losses under less-than-ideal mounting conditions.
The IP66 protection class guarantees protection against dust and strong water jets, allowing for outdoor installation without the need for an additional enclosure. The transformer-less design results in a lower weight (approximately 23 kg for a 10 kW unit) and higher efficiency, while still meeting European network standards.
Built-in Wi-Fi and RS485, along with the free ShineServer (web) and ShinePhone (iOS/Android) platform, enable full monitoring of the installation without any subscription fees - unlike companies like SMA, which charge a fee for access to the Sunny Portal after 10 years. Data export and real-time alerts are available without additional modules.
Growatt is not listed on the BNEF Tier-1 Power Inverter Manufacturers list (Q1 2026). For commercial projects financed by banks or funds that require a bankable inverter as a condition for loan approval, this could be a disqualifying criterion, forcing borrowers to choose between SMA, Fronius, or SolarEdge.
The MOD KTL3-XH series is designed to work exclusively with Growatt APX (HV) batteries. The official compatibility list does not include popular brands like Pylontech, BYD, or CATL - the lack of an open CAN/RS485 protocol with external BESS systems limits the freedom of choosing an energy storage supplier.
The standard manufacturer's warranty is 10 years; extending it to 20 years requires purchasing a separate package (e.g., ESTG Warranty Extension). Some competitors in the premium segment (e.g., Fronius) offer a 10-year standard warranty with a more developed service network in Poland, which may be important when calculating the total cost of ownership for commercial installations.
Alternatives
About the MOD 3~10KTL3-XH series
These answers cover the whole series. Where a figure differs, the specification above is this model's own.