Huawei LUNA2000-215-2S10 — capacity and round-trip efficiency test

Photomate · Business Center Residence · Kyiv · 23 June 2026
STANDARD IEC 62933-2-1:2017  ESS 215 kWh / 108 kW  TEST POWER 54 kW · 0.25C  RTE 92.04%

The test was performed using an independent measurement approach: the main charge and discharge parameters were measured by a separate external Metrel Power Master MI 2892 power quality analyzer at the ESS AC connection point. Data from the Huawei monitoring system were used for supplementary parameters such as SOC and temperature, while auxiliary consumption data were obtained from the ESS built-in auxiliary consumption meter. This approach allows the energy performance to be evaluated from independent measurements rather than relying solely on the ESS internal monitoring data.

The test was performed in accordance with IEC 62933-2-1:2017, which defines unit parameters and testing methods for electrical energy storage systems. The objective was to determine the usable AC energy delivered by the ESS and its round-trip efficiency during a complete charge/discharge cycle.

Charge/discharge power measured by the Metrel analyzer is shown together with SOC from the ESS monitoring system. SOC was recorded at 5-minute intervals; the line between measured points is linearly interpolated for visualization.

Auxiliary energy is taken from the ESS monitoring system's cumulative daily counter. Consumption for each phase is calculated as the difference between the counter values at the end and at the beginning of that phase.