MISO Energy Storage Study Phase 1 Report - Utility Wind ...

STORED ENERGY RESOURCE TREATMENT IN THE MISO TARIFF
4-4
• Hourly Full Charge Energy Withdrawal Rate: the rate in MWh/min at which a stored
energy resource can continue to absorb energy while the storage level is at the resource’s
maximum energy storage level.
Table 4-1 : Stored Energy Resource Operating Parameter Data Summary (Source MISO BPM-
002)
The defaults for these parameters are set through the tariff when the storage asset is registered. If
the parameter is updated in the resource offer, the updated value overrides the defaults.
Real Time (5 minute) Security Constrained Economic Dispatch (SCED) Energy
Dispatch
As stated above, SER’s can only be bid as regulation and the resource offer includes parameter
values describing the resource storage level and ramp rate etc. SER is then dispatched as energy
by the real time SCED dispatch model as follows:
• Dispatched MW is limited to a value that is the mean of MaxLimit and MinLimit based
on the latest telemeter data from the SER.
• The dispatch MW value indicates whether SER requires charging (negative MW) or has
available stored energy to dispatch (positive MW)