Terms

Abbreviation Definition
AC Alternating Current
BDFC Hydrogen Bi-directional Fuel Cell
BESS Battery Energy Storage System 
BMS Battery Management System
BOS Balance of System
DC Direct Current
DCSB Direct Current Storage Block
DCSBOS Direct Current Storage Balance of System
DCSS Direct Current Storage System
DOD Depth of Discharge 
DOE Department of Energy
EMS Energy Management System
EOL End of Life
EPC Engineering, Procurement, and Construction 
ESS Energy Storage System
FTM Front of the Meter
HVAC Heating, Ventilation, and Air Conditioning 
kW Kilowatt
kWh Kilowatt-hour
LFP Lithium Iron Phosphate 
MW Megawatt
MWh Megawatt-hour
NMC Lithium Nickel Manganese Cobalt
O&M Operation & Maintenance
OEM Original Equipment Manufacturer
PCS Power Conversion System 
PNNL Pacific Northwest National Laboratory
RTE Round Trip Efficiency
SCADA Supervisory Control and Data Acquisition 
SM Storage module
SOC State of Charge