Pure Off-Grid Ess; Pure Off-Grid Ess Networking; Setting The Pure Off-Grid Ess Mode - Huawei LUNA2000 Series User Manual

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LUNA2000-(5-30)-S0

User Manual

Setting a Working Mode

The grid-tied and off-grid ESS mode can be used together with the self-consumption or

time-of-use mode. Enable Off-grid mode during site deployment. For details about how to set

the self-consumption or time-of-use mode, see

3.3 Pure Off-grid ESS

The pure off-grid ESS is mainly used in the scenario where there is no grid and the system

operates in pure off-grid mode. The pure off-grid ESS stores the generated PV energy in

batteries and supplies power to loads when the PV energy is insufficient or there is no PV

energy at night.

The pure off-grid ESS consists of the PV strings, LUNA2000 batteries, inverter, AC switch,

and load.

The pure off-grid ESS supports only a single inverter and does not support parallel connection

of inverters.

Figure 3-10 Pure off-grid ESS

The inverter works in off-grid mode. When the sunlight is sufficient, the ESS supplies power

to loads and stores excess PV energy in batteries. When the sunlight is insufficient or there is

no sunlight, batteries discharge to supply power to loads. By default, the charge cutoff

capacity of Huawei LUNA2000 batteries is 100% and the discharge cutoff capacity is 0%. For

Issue 01 (2020-09-18)

3 Application Scenarios and Settings

3.1.2 Setting the Grid-tied ESS

Mode.

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