Liebert ESU is single / three phase output, bi-directional inverter system. ESU operates in parallel with the grid utility. Solar Photovoltaic panels convert solar energy into electrical energy as DC power. This DC power is used to charge the batteries through a charge controller and also used for the load through inverter. Additional energy is exported to the grid.
Liebert EEU is single / three phase output inverter, with Grid interactive feature. Solar Photovoltaic panels converts solar energy into electrical energy as DC power. This DC power becomes input for the EEU inverter. The inverter converts it into conventional AC power, and with its state of the art Grid synchronization design, this AC power is fed to the supply grid.