2Research studyEnergy Storage Inspection 2023Authors HTW Berlin (topic 1 to 4)Johannes Weniger, Nico Orth, Lucas Meissner, Cheyenne Schlüter, Jonas MeyneSolar Storage Systems Research GroupHTW Berlin – University of Applied SciencesCo-authors KIT (topic 4)Robert Schreier, Bernhard Schwarz, Nina MunzkeInstitute of Electrical Engineering (ETI) Karlsruhe Institute of Technology (KIT)ReleaseVersion 1.0 (February 2023)Websitesolar.htw-berlin.de/inspektion3Inverter efficiency: Average efficiency during discharging, Standby power consumption in the discharged state.4The efficiency benchmarking is based on the System Performance Index SPI (5 kW) and SPI (10 kW).5The battery losses of the sodium-nickel chloride battery are seven times higher than those of the lithium-ion battery. 6Maximum discharge power of different battey technologies during the discharge process.71Analysis of the German market for residentialPV-battery systems2Comparison of the system properties based on the test reports according to the Efficiency Guideline3Simulation-based assessment of the PV-batterysystems with the System Performance Index (SPI)4Analysis of sodium-ion and sodium-nickel chloridebattery systemsMain topics of the Energy Storage Inspection 202381Analysis of the German market for residentialPV-battery systems2Comparison of the system properties based on the test reports according to the Efficiency Guideline3Simulation-based assessment of the PV-batterysystems with the System Performance Index (SPI)4Analysis of sodium-ion and sodium-nickel chloridebattery systemsMain topics of the Energy Storage Inspection 20239Development of the German market for PV-battery systemsData: Marktstammdatenregister, PV systems between 2 kW and 20 kW, battery systems smaller than 20 kWh and 20...
