Battery Charge Efficiency

Units:%
Mode:Input Only
Multi-band:False
Default Value:70
Validation Rule:Between 0 And 100
Key Property:No
Description:Efficiency of charging

Battery Charge Efficiency is the ratio of power stored in the battery to the load on the grid i.e. including any losses such as inverter losses.

Example:

Battery Property Value Units
BESS Units 1 -
BESS Max Load 10 MW
BESS Charge Efficiency 90 %


If the BESS operates at Max Load of 1 MW for one hour then 1 MWh is the Load on the grid and 1 × 0.9 = 0.9 MWh of Charging is stored in the battery increasing the SoC. The losses are 0.1 MWh.

Figure 1: Charge Efficiency

See also: