Keeping the Lights On
The grid frequency at which the entire United States maintains its power systems at.
What is 60 Hz?
This category of ancillary is set by supply & demand rather than a fixed rate.
What is Market Ancillary?
This ancillary group comes in various classifications such as "Spinning", "Non-Spinning", and "Supplemental".
What are Operating Reserves?
This ancillary is typically only warranted when pricing certain bilateral transactions in ISO-NE.
What is Schedule 2?
Prior to this initiative, operating reserves were primarily procured in real time. It now co-optimizes reserve procurement with the Day-Ahead Energy Market.
What is DASI?
This ancillary, associated with grid reliability studies, is allocated based on the load's real-time monthly peak.
What is Schedule 3?
This document, authorized by FERC, acts as the governing document for fair interstate-transmission access.
What is the OATT?
This type of document, published annually by the ISO, can be used to forecast potential changes to ancillary rates before the tariff is revealed.
What is the Budget?
This ancillary service is most-likely to come on in a doomsday-like scenario.
What is Black Start?
MLC may be forecast as a percentage of the forward DA energy curve because it exhibits this statistical relationship with Day-Ahead LMP.