Growatt 12KVA 48V

The Growatt SPE 12000 ES is the most powerful model in the SPE ES series. With 12 kW output, up to 15 kWp PV input and intelligent load management, it handles even large systems. Integrated transfer switch, backup power and parallel operation up to 108 kW.

The Growatt SPE 12000 ES is a heavy-duty, single-phase hybrid solar inverter that integrates a 12,000W pure sine wave inverter, a dual-MPPT solar charge controller, and a UPS module into a single, comprehensive unit. It is ideal for residential homes and small businesses needing robust off-grid backup and self-consumption.

Key Features and Specifications

• Power Output: Rated AC output of 12 kW with an output power factor up to 1.0.
• Solar Integration: Features dual MPPT trackers handling up to 16 kW of PV input, with a maximum PV voltage up to 550VDC.
• Battery Compatibility: Works with 48Vdc battery systems, supporting both lead-acid and low-voltage lithium-ion batteries.
• Expandable Design: Supports parallel operation of up to 9 units for capacity expansion up to 108 kW, and allows up to 320 kWh of battery capacity per inverter
• Smart Management: Includes a built-in Automatic Transfer Switch (ATS) for seamless switching between grid, generator, and battery. It also features peak-shaving (grid-tied function) and intelligent load management. [
• Monitoring: Supports remote monitoring via built-in Wi-Fi or 4G connections using the Growatt Shine app or PVkeeper platforms.

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Growatt SPE 12000 ES – Maximum Performance for Large PV Systems with Storage

The Growatt SPE 12000 ES is the flagship of the single-phase SPE ES series, delivering the highest output power of 12 kW in the range. Designed for households with above-average energy demand or small commercial applications, this hybrid inverter processes PV arrays of up to 15 kWp and unifies solar power generation, battery storage and backup power in one powerful unit.

Maximum Solar Harvest with the Growatt SPE 12000 ES

With two MPP trackers and an MPPT voltage range of 60 to 480 V, the Growatt SPE 12000 ES handles up to 15 kWp of PV generator power at a maximum input voltage of 550 V DC. The oversizing of the PV generator relative to inverter rated power maximizes energy harvest especially during morning and evening hours as well as on cloudy days. The device achieves peak efficiency values of 96.5% with a European efficiency of 95.5%.

High-Performance Battery Management

The Growatt SPE 12000 ES supports 48 V battery systems with lithium and lead-acid technology. Maximum charge and discharge currents of 250 and 280 A respectively enable particularly fast energy uptake and delivery – ideal for applications where large amounts of energy need to be processed in a short time. Integrated peak shaving uses battery capacity for grid optimization and electricity cost reduction. Two separate AC outputs allow differentiated load control by priority.

Professional Backup Power Solution

The full rated power of 12 kW is available in backup operation. The integrated transfer switch responds in less than 20 ms, ensuring virtually uninterrupted power supply. For systems with even higher power requirements, parallel connection of multiple units up to 108 kW is possible. With two AC inputs and an integrated transfer switch, the SPE 12000 ES offers maximum flexibility in system configuration.

Robust Technology in a Compact Format

Even the most powerful model in the series measures just 465 x 550 x 150 mm at 21.5 kg and is suitable for protected indoor installation thanks to its IP20 rating. Communication via WiFi and 4G enables professional system monitoring and remote maintenance. DC fan cooling ensures reliable continuous operation even at high ambient temperatures up to +50 °C.