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As experts in smart grid market, EBV can help you to recognise the most common terms and abbreviations in the areas of Energy storage, Metering and SMART metering, Solar Photovoltaic (PV) system, Wind power:
The act of bringing the voltage of serially connected cells to within a tolerance of each other. The goal of balancing is to equalize discharging between cells and optimize the life of the group. Methods include “active” and “passive”.
A control system governing the charge, discharge, temperature, current, and voltage of a battery module or pack
A chemical system that produces DC voltage
A series parallel arrangement of cells including module level battery management controls
A series parallel combination of modules including pack level battery management controls
Returning a generation asset to operation without relying on the external electric power transmission network.
Total cut out of an electrical power supply.
Battery Management System. Device attached to each Durathom Module to manage its performance and operation.
Intentional drop in voltage in an electrical power supply system in order to reduce load in an emergency.
The charge or discharge rate relative to a full charge or full discharge in 1 Hour. For example if a battery is discharged in 30 minutes the C rate is 2.
Ratio of the actual output of a power plant over a period of time and its potential output if it had operated at full nameplate capacity.
Charge-Discharge-Cycle; operating the battery continuously alternating between charge and discharge in partial state of charge to optimize the battery energy throughput.
When the electricity load exceeds the maximum capacity of the transmission system.
The beginning portion of a battery’s charging profile where the charging current is fixed and the charging voltage is dependent on the battery’s state of charge.
A fixed kW power charge level.
A fixed kW power discharge level.
The final portion of a battery’s charging profile where the charging voltage is fixed near the battery’s maximum voltage and the charging current is dependent on the battery’s state of charge.
An instrumentation transformer used to scale down a large current on the primary side to a smaller current on the secondary side which is measurable by another device.
Demand Response programs offer incentives to electricity users to reduce their power use in RESPONSE to a utility's need for power due to a high, system-wide DEMAND for electricity or emergencies that could affect the transmission grid.
Distributed Energy Resources.
Energy storage asset that is primarily used to provide power during periods of peak demand.
Distribution Management System.
Depth of Discharge.
Distribution Service Operator.
The basic building block of the Durathon Energy Storage System.
A disturbance that affects an electrical circuit.
Storing energy at one time of day and then discharging at another time, effectively shifting energy from one time to another. Most commonly used in renewables where energy is generated and stored off peak and then delivered during peak times. (see shifting)
Storing energy at one time of day and then discharging at another time, effectively shifting energy from one time to another. Most commonly used in renewables where energy is generated and stored off peak and then delivered during peak times. (see shifting)
Using storage to "fill in" gaps in intermittent renewable power generation so the power supplied looks somewhat to very constant.
Utility industry term describing the very short term effect on power quality caused at the start of a load.
Response taken by interconnected party to address imbalances in frequency on an electric grid.
While in island mode with the isolation contactor open, the act of aligning the inverter’s output voltage and frequency (point-to-point) with those of the AC utility prior to closing the contactor.
A grid tie (synchronous) inverter changes DC to AC and either sends energy back to the utility company or for immediate use by the home or business owner.
High voltage network – typical voltage above 50kV.
Rules and regulations that an entity connecting to an electricity grid must meet. Often concerned with ensuring safety and security of supply.
Independent Power Producer.
System could detect abnormal utility conditions, open contactor, and serve customers in an island. When the utility is restored, will re-synchronize and re-connect.
A self contained electric grid which has no or just limited connection to a large electrical network.
Kilowatt. Unit of Power.
Kilowatt Hour. Unit of Energy.
The active process of balancing the supply of electricity on the network with the load by adjusting or controlling the load.
Low voltage network – typical voltage range less than 1kV.
A charge for the maximum rate at which energy is used during peak hours of a billing period. That part of a power provider service charged for on the basis of the possible demand as distinguished from the energy actually consumed. $/kW paid monthly On Peak Energy Price Retail price of Energy supplied during periods of relatively high system demands as specified by the supplier. ($/kWh) Off Peak Energy Price Retail price of Energy supplied during periods of relatively low system demands as specified by the supplier. ($/kWh)
Medium voltage network – typical voltage 1kV- 50kV.
Reducing a user's effective peak load by using storage discharge to augment power delivered by the grid (see peak shaving).
Reducing a user's effective peak load by using storage discharge to augment power delivered by the grid (see peak shaving)
The process of utilizing alternative energy sources to meet customer demand during peak-use periods.
Using storage to deliver relatively rapid power to the grid at times of high load where additional capacity, over base capacity, is needed.
The ratio of the real power flowing to the load to the apparent power in the circuit.
The process of supplying reactive power to the load in order to bring the power factor of the circuit closer to 1.0.
The overall quality of electric power. Affected by voltage, frequency, power factor, and harmonics.
Partial State of Charge.
The practice of profiting through the volatility of energy market prices, brought on by significant changes in daily supply and demand.
The total possible output from the energy storage system, expressed in kW.
The “phantom power” of reactive loads such as inductors and capacitors measured in Volt-Amps-Reactive (VAR).
Renewable Energy Sources.
The remaining energy available at the lower state of charge limit in a partial state of charge operating window.
Storing energy at one time of day and then discharging at another time, effectively shifting energy from one time to another. Most commonly used in renewables where energy is generated and stored off peak and then delivered during peak times.
Process to ensure that rapid changes output energy from solar and wind generation can be effectively managed on a utilities grid.
State of Charge.
On-line reserve capacity that is synchronized to the grid system and ready to meet electric demand within 10 minutes response time.
The amount of energy remaining in a battery relative to a full charge.
Occurs when electrical load exceeds transmission capacity in a given area.
