--- title: "Growatt MAX 225KTL3-X HV Grid-tie Inverter: Specs & Datasheet | ComparePV" description: "Growatt MAX 225KTL3-X HV 225 kW grid-tie inverter. Specs: 12 MPPT, 1500 V max DC input, 99.0 kg, 5 yrs warranty." source: "https://comparepv.com/inverter/growatt-max-225ktl3-x-hv" updated: 2026-01-16 --- # Growatt MAX 225KTL3-X HV ## Identity - **Manufacturer:** Growatt - **Model:** MAX 225KTL3-X HV - **Series:** MAX 225KTL3-X HV - **Rated AC power:** 225 kW - **Type:** Grid-tie - **Phases:** Three-phase ## How it compares Compared against 95 inverters from 100 to 500 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | - | 98.6% | | | | MPPT trackers | 12 | 10 | Strong - top 14% | 3 | | Max DC input voltage | 1500 V | 1100 V | Strong - top 24% | 1 | | Weight per kW | 0.4 | 0.6 | Typical | 30 | | Warranty | 5 yrs | 5 yrs | Typical | 2 | ## Specification ### AC output - **Rated AC power:** 225 kW - **Max AC power:** 250.00 kW - **Max apparent power:** 250.00 kVA - **Phases:** Three-phase - **Nominal AC voltage:** 800 V - **Max AC current:** 180.5 A - **Power factor:** 0.8 leading ... 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC voltage:** 1500 V - **MPPT voltage range:** 500 to 1300 V - **Start-up voltage:** 500 V - **MPPT trackers:** 12 - **Max input current per MPPT:** 30.0 A - **Max short-circuit current per MPPT:** 50.0 A ### Efficiency - **Max efficiency:** 99.0 % ### Physical - **Dimensions:** 670 × 1120 × 370 mm - **Weight:** 99.0 kg - **Enclosure:** IP66 - **Cooling:** forced-air - **Operating temperature:** -30 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 4000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Display - **Protocols:** USB, RS485, GPRS, 4G, PLC, WiFi (APP) - **Protection:** DC switch, Surge protection ### Warranty and certificates - **Warranty:** 5 years - **Certifications:** CQC, IEC 61727, IEC 62116, IEC 61683, IEC 60068, IEC/EN 62109, IEC/EN 61000, OND ### Pros - **12 independent MPPT (Maximum Power Point Tracking) channels** - The 225 kW model is equipped with 12 MPPT trackers, while comparable inverters of this power class (e.g., SMA CORE2 250 kW) offer 6 MPPT. The multi-string architecture minimizes losses under partial shading and allows for more flexible string design with mixed module orientations without the need for optimizers. - **European efficiency: 98.7%** - According to the Euro efficiency datasheet, the 98.7% efficiency of this inverter places it among the best in the utility-scale segment. With an installed capacity of 225 kW and approximately 1,500 hours of annual operation in Poland, this translates to a significantly higher energy yield compared to the typical European efficiency of around 98.4% offered by competitors in this power range. - **1500 V DC Architecture** - A maximum DC voltage of 1500 V allows for the design of longer strings (fewer inverters and less cabling), which reduces BOS (Balance of System) costs by an estimated 10-15% compared to 1000 V installations - a significant economic benefit for projects exceeding 1 MWp. - **IP66 + Integrated SPD Type II** - The IP66 enclosure provides complete protection against dust and strong water jets, making it suitable for outdoor mounting without enclosures. The integrated DC and AC Type II surge protection devices eliminate the need to install separate surge protection devices, simplifying the design and reducing BOS costs. - **Intelligent string monitoring** - The built-in smart I-V scan and string diagnostic function allows for remote detection of anomalies (faulty modules, polarization errors, degradation) without the need for external data loggers. Integration with the Growatt Shine platform (Ethernet/WiFi via datalogger) enables real-time monitoring of the farm from a mobile or web application. ### Cons - **Not classified as a Tier 1 bankable entity by BNEF** - Growatt is not listed on the BNEF Tier 1 bankable inverter manufacturers list - one of the key criteria for due diligence required by banks and infrastructure funds when financing utility-scale projects. This could potentially lengthen or complicate the process of obtaining long-term financing for PV farms using this series, even if the manufacturer holds Tier 1 certifications from S&P Global or SMM. - **Failure rate exceeding the premium tier** - Independent market reviews (solartechonline.com, 2025) indicate that the failure rate of modern Growatt inverters is 2-5%, compared to 1-3% for premium manufacturers (SMA, Fronius, Sungrow). This difference can lead to higher operational expenses (OPEX) related to maintenance and replacement in large-scale PV farms with capacities of several MWp. ## About this series Growatt MAX 225KTL3-X HV are three-phase **grid-tie** inverters designed for large commercial and industrial installations as well as PV farms, where stable operation, fast diagnostics, and low operating costs are crucial. This inverter stands out from the competition with its **multi-string MPPT architecture (12 trackers)**, which simplifies string design for modules with different orientations and minimizes losses during partial shading-instead of slowing down the entire system, the inverter precisely adjusts the operating point for multiple sections simultaneously. High **European efficiency** means a truly better energy yield under typical operating conditions in Poland, not just in the lab. For service and operators, safety features and string monitoring are key, including diagnostics that facilitate quick anomaly detection. In terms of monitoring, the following **communication and monitoring options** are available via data loggers (WiFi or Ethernet) and the Growatt Shine platform/app. The MAX 225KTL3-X HV series is designed for grid-connected applications and is not suitable for hybrid systems with energy storage. ## Questions ### How many MPPT trackers does the Growatt MAX 225KTL3-X HV inverter have, and why does this matter for large-scale installations? The MAX 225KTL3-X HV series features 12 independent MPPT trackers. This allows strings with different orientations (e.g., south-facing and east/west-facing) or tilt angles to be connected, with each segment operating at its own optimal power point. In practice, this translates to higher energy yield under partial shading conditions and significant design flexibility for complex commercial rooftops and utility-scale PV farms. ### What is the warranty on the Growatt MAX 225KTL3-X HV inverter? The standard manufacturer's warranty is 5 years - typical for inverters rated above 22 kW. Growatt offers the option to extend the warranty to 10 years. In Poland, Growatt operates an official local subsidiary with technical support available 7 days a week (8:00-20:00), minimizing downtime in the event of a fault. ### Does the Growatt MAX 225KTL3-X HV inverter support battery storage and off-grid operation? No. The MAX 225KTL3-X HV series is a grid-tie-only inverter - it requires an active utility grid and does not support battery storage or island (off-grid) mode. For a hybrid system with energy storage, a different model is required, such as one from the Growatt SPH or STORAGE line. This distinction should be taken into account at the design stage of any industrial installation. ### What does the HV suffix in the Growatt MAX 225KTL3-X HV name stand for? HV stands for High Voltage, indicating that the inverter supports a DC input voltage of up to 1500 V from PV modules. A higher DC-side voltage enables longer strings with fewer cables and reduces transmission losses. This is a particularly significant advantage when designing large PV farms with extended cable runs. ### How can the Growatt MAX 225KTL3-X HV inverter be monitored and faults diagnosed? The inverter supports data loggers connecting via Wi-Fi or Ethernet; data is transmitted to the Growatt Shine platform, accessible as both a mobile app and a web dashboard. The series offers intelligent string monitoring with an I/V curve scan function, enabling rapid detection of anomalies in a specific string or module without the need for a physical site inspection. ### Is Growatt a reliable inverter manufacturer - what is the brand's market standing? Growatt is one of the four largest inverter manufacturers in the world and has held Tier 1 status awarded by S&P Global Commodity Insights since 2025. The company supplies equipment to more than 180 countries and has ranked first in the residential (prosumer) inverter segment for several consecutive years. For installations in Poland, the presence of an official local service center available 7 days a week is a key operational advantage. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/max-225ktl3-x-hv-29caaa63271e.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [GoodWe GW225K-HT](https://comparepv.com/inverter/goodwe-gw225k-ht) | 225 kW | 98.5% | 12 | 111.0 kg | 12.0 kg heavier | | [GoodWe GW225KN-HT](https://comparepv.com/inverter/goodwe-gw225kn-ht) | 225 kW | 98.5% | 12 | 111.0 kg | 12.0 kg heavier | | [Growatt MAX 216KTL3-X HV](https://comparepv.com/inverter/growatt-max-216ktl3-x-hv) | 216 kW | 98.7% | | 95.0 kg | -9.0 kW, 4.0 kg lighter | | [Huawei SUN2000-215KTL-H0](https://comparepv.com/inverter/huawei-sun2000-215ktl-h0) | 200 kW | 98.8% | 9 | 86.0 kg | -25.0 kW, -3 MPPT, 13.0 kg lighter | | [Huawei SUN2000-215KTL-H3](https://comparepv.com/inverter/huawei-sun2000-215ktl-h3) | 200 kW | 98.8% | 3 | 86.0 kg | -25.0 kW, -9 MPPT, 13.0 kg lighter | | [SOFAR 250KTLX0](https://comparepv.com/inverter/sofar-solar-sofar-250ktlx0) | 250 kW | 98.8% | | 111.0 kg | +25.0 kW, 12.0 kg heavier | | [Sungrow SG250HX-20](https://comparepv.com/inverter/sungrow-sg250hx-20) | 250 kW | 98.8% | 6 | 106.0 kg | +25.0 kW, -6 MPPT, 7.0 kg heavier | | [Growatt MAX 250KTL3-X HV](https://comparepv.com/inverter/growatt-max-250ktl3-x-hv) | 250 kW | 98.7% | | 99.0 kg | +25.0 kW | --- Source: https://comparepv.com/inverter/growatt-max-225ktl3-x-hv