Marjamäki battery energy storage system power quality

Electrical measurement data of two battery energy storage systems (BESSs) of the LEMENE microgrid in Marjamäki, Lempäälä. Includes 179 continuous timeseries measurement quantities aggregated at 1-second interval. The measurement quantities consist of voltage, current, power and energy, and power quality quantities such as symmetrical components of voltage, and harmonic voltages and currents. The measurement points are at the medium voltage side of the dedicated transformers of the BESSs.

• BESS 1: maximum power 1.6 MW, storage capacity 1.3 MWh
• BESS 2: maximum power 2.4 MW, storage capacity 1.6 MWh

Note: From the measurement start date 2020-06-24 until 2020-09-18 data is only available for BESS 1.

See the ProCem project for general information about how the measurements are stored and can be used. See the eQL quality meter group for general information about the used measurement device. See the Marjamäki group for general information about the microgrid.