The Growatt WIT25K-HU is a powerful 25 kW three-phase hybrid inverter designed for large residential villas, farms and small-to-medium commercial solar plus storage systems. With a maximum efficiency of 97.6%, four MPPT trackers, 20 A string current and ultra-fast UPS backup under 20 ms, it delivers outstanding energy harvest, reliability and flexibility. Fully compatible with Growatt AXE cobalt-free LiFePO4 batteries, this inverter maximizes self-consumption, reduces electricity bills and provides true energy independence.
The Growatt WIT25K-HU stands out with its excellent price-to-performance ratio, future-proof design and easy scalability. It offers one of the best solutions on the European market for high-demand applications. Enjoy 10-year warranty, IP66 protection, 1.6 DC/AC ratio and seamless integration with low-voltage LiFePO4 batteries. Whether you need whole-home backup or optimized commercial energy management, this hybrid inverter delivers maximum value and long-term reliability.
- ✅ 97.6% maximum efficiency – highest energy yield from your PV array
- ✅ 4 MPPT trackers + 20 A string current – perfect for modern high-power modules
- ✅ UPS backup under 20 ms – instant protection during power outages
- ✅ Parallel operation up to 90 kW – modular and easily expandable
- ✅ Full compatibility with AXE LiFePO4 – cobalt-free, safe and long-lasting batteries
- ✅ 10-year warranty – complete manufacturer confidence
| Parameter | Value |
|---|---|
| Nominal AC Output Power | 25 kW |
| Maximum Efficiency | 97.6% |
| European Efficiency | 97.0% |
| Number of MPPT Trackers | 4 |
| Maximum PV Input Power (STC) | 50 kW |
| Maximum String Current | 20 A |
| Maximum PV Input Voltage | 1000 V DC |
| Battery Voltage Range | 40–60 V |
| Maximum Battery Charge/Discharge Current | 420 A |
| UPS Switching Time | <20 ms |
| Protection Rating | IP66 |
| Parallel Capability | Up to 90 kW |
| Dimensions (W × H × D) | 475 × 698 × 240 mm |
| Weight | 58 kg |
The Growatt WIT25K-HU uses advanced modular energy optimization with four independent MPPT trackers and high 20 A string current. This allows you to connect the latest high-power PV modules and achieve excellent performance even under partial shading. The 1.6 DC/AC ratio enables safe oversizing of the PV array for maximum yield. The inverter supports both DC-coupled and AC-coupled systems and enables seamless mixing of new and existing battery modules. Intelligent load management, zero-export function and built-in generator input make it the perfect choice for modern energy systems that grow with your needs.
- ✅ 110% continuous AC overload capacity – handles peak loads without problems
- ✅ Intelligent cooling with smart ventilation – silent and maintenance-free operation
- ✅ Full BMS communication – optimal battery management and extended lifetime
- ✅ Zero-export and smart load control – maximum self-consumption and bill savings
The Growatt WIT25K-HU works perfectly with the entire range of Growatt AXE cobalt-free LiFePO4 batteries (>6000 cycles) as well as other low-voltage 40–60 V batteries. Dual battery inputs, CAN/RS485 communication and support for third-party batteries give you complete freedom in system design. The inverter also supports parallel operation up to 90 kW – ideal for growing installations that can start small and expand without replacing components.
Your safety is our top priority. The Growatt WIT25K-HU offers a comprehensive 4-level protection system:
- ✅ 1. Built-in AFCI – arc-fault circuit interruption
- ✅ 2. Intelligent BMS communication – continuous battery monitoring
- ✅ 3. Advanced overload, short-circuit and surge protection
- ✅ 4. IP66 enclosure + aerosol fire suppression readiness – full protection against dust, water and fire hazards
Compact design, lightweight construction and plug-and-play connections make installation fast and simple – even outdoors. The inverter supports automatic parallel configuration via the ShinePhone app. You can start with one unit and easily expand the system in the future without any major changes. Wall mounting is straightforward and the IP66 rating allows outdoor installation in all weather conditions.