Haier E-Tower HV HAH3P-15KB1/HU915kW three-phase hybrid inverter for the E-Tower HV battery stack

Overview

The HAH3P-15KB1/HU9 is the most powerful E-Tower HV inverter, rated 15kW and 15.75kVA on the grid side. It takes up to 22.5kW of PV across three MPPTs (1000V maximum) and charges one to six HBHS-4.8KB1/LPP modules at up to 50A. The backup port supplies 15kVA with switch-over below 10ms. European efficiency is 98%, the housing is IP65, and cooling is by intelligent air cooling with noise below 45dB.

• HAH3P hybrid inverters from 4 to 15kW, three-phase
• 1 to 6 HBHS-4.8KB1/LPP modules: 4.8 to 28.8kWh
• 3 MPPT, PV array up to twice the AC rating
• Backup switch-over under 10ms, AFCI included
• Up to 150% unbalanced load across the three phases
• IP65 inverter and batteries, 10-year warranty

How it works

The E-Tower HV joins a HAH3P three-phase hybrid inverter and a stack of HBHS-4.8KB1/LPP lithium iron phosphate modules in one floor-standing column. Each module is rated 96V and 4.8kWh, with 4.5kWh usable. One to six modules are connected in series to the inverter, which accepts a battery voltage of 90–700V and charges or discharges at up to 50A. Haier states that new and older modules are balanced automatically, so a system can be extended later.

On the PV side every model has three MPP trackers rated 16A each, a 140–950V full-load MPPT range and an 85V start-up voltage. The maximum PV input power is twice the rated output, for example 20kW on the 10kW model, which allows east–west or multi-pitch roofs to be used without clipping the battery charge.

Backup and grid connection

The backup port is three-phase and delivers the rated power of the inverter, switching over in less than 10ms when the grid fails. Haier states that it supports up to 150% unbalanced load between phases. Grid codes declared in the datasheet include VDE-AR-N 4105, EN 50549-1, C10/11, G98, G99, NTS 631 and UNE 217002, with IEC/EN 62109-1/-2 for safety. Arc-fault detection (AFCI) is built in.

Installation and compatibility

The 590×416×205mm inverter mounts on top of the battery stack; with one to three modules the column reaches 1850mm. With four to six modules the batteries are split into a second cluster next to the first. Inverter and modules are IP65 and can stand on the floor or be fixed to a wall, indoors or outdoors. Models up to 10kW are naturally cooled, the 12kW and 15kW versions use intelligent air cooling.

The quick installation guide asks for a separate grid and backup circuit breaker for each inverter; for the 10–15kW models it recommends 40A on the grid side and 32A on the backup side with 6mm² cable. PV strings must stay below 950V open-circuit voltage. Battery power cables of 10mm² and a parallel communication cable are supplied.

Monitoring and settings

A Wi-Fi module is included and Ethernet is available; the BMS link runs over CAN or RS485, and further ports serve an energy meter, RS485, DRM/RRCR ripple control and two auxiliary dry contacts. Commissioning, Wi-Fi setup and system parameters are done in the app following the commissioning guide. Haier lists dynamic tariff support among the system functions.

Questions and answers