How is the congestion component calculated when a Desired Net Interchange (DNI) ramp constraint occurs between the New York Control Area (NYCA) and an outside Control Area?
Just as with other busses, the Proxy busses for the Control Area’s Locational Based Marginal Price (LBMP) congestion component is influenced by NYISO security and line constraints. Unlike other busses the Proxy Bus LBMP is also influenced by the NYCA DNI ramp constraint, which is typically 700 MW. Participants will notice that when the DNI ramp rate constraint is binding, the congestion components of the LBMP are the same for all four proxy busses. Accordingly, if one of the proxy busses has a different number for the congestion component of its LBMP, there is another congestion related cause. If a ramp constraint for the NYCA is binding, the software will look at all four proxies to solve for that constraint. In this way, a transaction on one interface will be affected by transactions on the other three interfaces.
Related Questions
- How is the congestion component calculated when a Desired Net Interchange (DNI) ramp constraint occurs between the New York Control Area (NYCA) and an outside Control Area?
- How are the Desired Net Interchange (DNI) values derived on the Balancing Market Advisory Summary report?
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