--- title: "Growatt SPM 4600TL-HU Hybrid Inverter: Specs & Datasheet | ComparePV" description: "Growatt SPM 4600TL-HU 4.6 kW hybrid inverter. Specs: 97.6% European efficiency, 2 MPPT, 600 V max DC input, 26.0 kg, 5 yrs warranty." source: "https://comparepv.com/inverter/growatt-spm-4600tl-hu" updated: 2026-01-16 --- # Growatt SPM 4600TL-HU ## Identity - **Manufacturer:** Growatt - **Model:** SPM 4600TL-HU - **Series:** SPM TL-HU - **Rated AC power:** 4.6 kW - **Type:** Hybrid - **Phases:** Single-phase - **Battery port:** yes ## How it compares Compared against 362 inverters from 3 to 6 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | 97.6% | 97.2% | Strong - top 17% | 39 | | MPPT trackers | 2 | 2 | Typical | 13 | | Max DC input voltage | 600 V | 600 V | Typical | 94 | | Weight per kW | 5.7 | 3.3 | Weak - bottom 14% | 303 | | Warranty | 5 yrs | 5 yrs | Typical | 34 | ## Specification ### AC output - **Rated AC power:** 4.6 kW - **Max apparent power:** 4.60 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V - **Max AC current:** 20.0 A - **Grid frequency:** 50 Hz - **Power factor:** 0.8 leading ... 0.8 lagging - **Harmonic distortion (THD):** 3.0 % ### PV input - **Max DC input power:** 6.90 kW - **Max DC voltage:** 600 V - **MPPT voltage range:** 150 to 550 V - **Start-up voltage:** 130 V - **MPPT trackers:** 2 - **Max input current per MPPT:** 22.0 A - **Max short-circuit current per MPPT:** 27.5 A ### Efficiency - **European efficiency:** 97.6 % - **Max efficiency:** 98.1 % ### Battery - **Battery port:** Yes - **Battery voltage:** 40–60V - **Max charge current:** 140.0 A - **Max discharge current:** 140.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 330 × 580 × 230 mm - **Weight:** 26.0 kg - **Enclosure:** IP65 - **Cooling:** natural - **Noise:** 30 dB - **Operating temperature:** -25 to 60 °C - **Max humidity:** 100 % - **Max altitude:** 2000 m ### Connectivity and protection - **Interfaces:** Wi-Fi, Ethernet, Display - **Protocols:** RS485, CAN, USB, WiFi, LAN - **Protection:** Surge protection ### Warranty and certificates - **Warranty:** 5 years - **Certifications:** EN50549, CE-EMC, CE-LVD, IEC62116, IEC61727 ### Pros - **UPS Switchover \<10 ms** - Backup switchover time of under 10 ms meets the threshold required by most sensitive loads - computers, NAS devices, and routers. Budget-segment single-phase hybrids such as the Solis RHI typically declare switchover times of 20-30 ms, making the SPM TL-HU a meaningfully faster solution for critical circuits. - **European Efficiency 96.5%** - A measured European efficiency of 96.5% with a peak of 97.5% places the series above the lower boundary of the premium class for single-phase hybrid inverters. Under Polish irradiation conditions, the 1-1.5 percentage-point advantage over lower-cost competitors (e.g., Deye SUN-xK-SG03LP1) translates to approximately 50-80 kWh of additional annual yield for an 8 kWp system. - **Dual MPPT, Tracking Efficiency ≥99.5%** - Two independent MPPT inputs with tracking efficiency ≥99.5% and an input current of up to 22 A each allow separate management of roof sections with different orientations or tilt angles, minimizing losses under partial shading of a single string. - **48 V Battery Compatibility (Lithium and Lead-Acid)** - Support for low-voltage 48 V batteries (maximum charge/discharge current 165 A) provides access to a wide range of compatible energy storage systems - including the Growatt ALP LV and Pylontech US series - which are on average 15-25% less expensive per kWh of capacity than high-voltage (HV) systems. Lead-acid compatibility also enables retrofit of existing installations. - **IP65 Rating + DC and AC Surge Protection** - The IP65 ingress protection rating allows installation in unheated rooms and garages exposed to moisture. Integrated Type II surge protection on both the DC and AC sides eliminates the need for separate surge protective devices (SPDs), reducing the overall system cost by approximately 200-400 PLN. ### Cons - **Manufacturer Not on BNEF Tier-1 Bankable List** - Growatt does not appear on the BNEF Tier-1 Bankable inverter list (as of 2025-2026), unlike SMA, Fronius, Huawei, or SolarEdge. For installations financed through loans or leasing, some financial institutions may require inverters from manufacturers holding this status, which could complicate financing approval or reduce property resale value. - **Narrow Power Range: 8-10 kW Only** - The SPM TL-HU series covers only the 8,000 W and 10,000 W variants, limiting sizing flexibility for smaller residential systems (3-6 kW) or larger installations exceeding 10 kW. Installers are forced to turn to a different Growatt series or an alternative manufacturer whenever the load requirement falls outside this range. ## About this series Growatt SPM TL-HU hybrid inverters are designed for use with energy storage systems and backup power supplies - ideal for residential and small commercial installations where self-consumption and power continuity are essential. The key feature is the UPS function with extremely fast switching to backup mode, ensuring that critical circuits remain powered without any noticeable interruption during a power outage. Two independent MPPTs optimize energy yield from solar panels with different roof orientations and partial shading by adapting the inverter's operation to the conditions of each string. The high European efficiency means significantly better real-world energy production under typical operating conditions in Poland, not just in laboratory settings. Monitoring and communication can operate via WiFi or LAN, with access to the manufacturer's platform and app. The SPM TL-HU supports low-voltage batteries (lithium and lead-acid types), offers overvoltage protection on both DC and AC sides, and comes with compliance certificates (including EN 50549). The standard warranty period is 10 years. ## Questions ### How quickly does the Growatt SPM TL-HU switch to backup power during a grid outage? The UPS function in the SPM TL-HU series guarantees a switchover to backup mode in under 20 ms, which is imperceptible to most household devices - including computers, routers, and home-grade medical equipment. This means that protected circuits continue to receive power from the battery almost instantaneously after a grid failure, with no device restarts required. ### Which batteries are compatible with the Growatt SPM TL-HU inverter? The SPM TL-HU series supports low-voltage lithium-ion batteries (48 V) as well as lead-acid batteries. Growatt publishes an official list of certified battery partners, including Pylontech, Dyness, Pytes, SACOLAR, and Topband, among others. Communication with the battery operates in a closed loop via CAN/RS485, enabling precise charge and discharge management without the need for external controllers. ### What power ratings does the Growatt SPM TL-HU series offer, and what system size is it designed for? The SPM TL-HU series is available in 8 kW and 10 kW AC output variants. This range is ideally suited for single-family homes and small commercial premises with a power demand of up to approximately 10 kW. The inverter supports a DC input capacity that exceeds its AC output rating, allowing a larger string of panels to be connected and enabling better utilization of the solar irradiance conditions typical of Poland. ### What is the benefit of two independent MPPTs in the Growatt SPM TL-HU - does it matter for a typical dual-pitch roof? Yes, dual independent MPPTs provide a tangible advantage on a dual-pitch roof where the two roof faces have different orientations - for example, south and east/west - or where partial shading occurs due to a chimney or dormer windows. Each tracker operates independently, so a weaker string does not reduce the output of the stronger one. In practice, this results in higher annual energy yield compared to an inverter with a single MPPT. ### What warranty does the Growatt SPM TL-HU inverter carry, and what does it cover? The standard manufacturer's warranty for the SPM TL-HU series is 10 years. It covers material and manufacturing defects of the unit. Growatt is not classified as Tier 1 under the Bloomberg NEF ranking, so when selecting this inverter it is advisable to confirm that the authorized distributor in Poland provides after-sales service support and spare parts availability throughout the full warranty period - this is an important consideration for any potential post-sale servicing. ### Does the Growatt SPM TL-HU meet the grid connection requirements applicable in Poland? Yes, the SPM TL-HU series holds a certificate of conformity with EN 50549, the standard governing requirements for micro-installations connected to the public grid in Europe, including Poland. This certificate is required by most distribution system operators (DSOs) when registering and commissioning a prosumer installation, which simplifies the administrative procedures during grid connection. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/spm-3000-6000tl-hu-datasheet-en-202501-24ae27f54793.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Huawei SUN2000L-4.6KTL](https://comparepv.com/inverter/huawei-sun2000l-4-6ktl) | 4.6 kW | 98.0% | 2 | 10.6 kg | +0.4 pp efficiency, 15.4 kg lighter | | [Huawei SUN2000-4.6KTL-L1](https://comparepv.com/inverter/huawei-sun2000-4-6ktl-l1) | 4.6 kW | 97.7% | 2 | 12.0 kg | 14.0 kg lighter | | [Growatt MIN 4600TL-XH](https://comparepv.com/inverter/growatt-min-4600tl-xh) | 4.6 kW | 97.5% | 2 | 10.8 kg | 15.2 kg lighter | | [Growatt MIN 4600TL-XA](https://comparepv.com/inverter/growatt-min-4600tl-xa) | 4.6 kW | 97.5% | | 10.8 kg | 15.2 kg lighter | | [Growatt MIN 4600TL-XH2](https://comparepv.com/inverter/growatt-min-4600tl-xh2) | 4.6 kW | 97.5% | 2 | 10.8 kg | 15.2 kg lighter | | [SolarEdge SE8K (Three Phase, Delta Grids)](https://comparepv.com/inverter/solaredge-se8k-three-phase-delta-grids) | 4.6 kW | 97.5% | | 16.4 kg | 9.6 kg lighter | | [Fronius Primo GEN24 4.6](https://comparepv.com/inverter/fronius-international-fronius-primo-gen24-4-6) | 4.6 kW | 97.2% | 2 | 15.4 kg | -0.4 pp efficiency, 10.6 kg lighter | | [Fronius Primo GEN24 4.6 Plus](https://comparepv.com/inverter/fronius-international-fronius-primo-gen24-4-6-plus) | 4.6 kW | 97.2% | 2 | 15.4 kg | -0.4 pp efficiency, 10.6 kg lighter | --- Source: https://comparepv.com/inverter/growatt-spm-4600tl-hu