Rich KowalskiDIRECTOR, TRANSMISSION STRATEGY AND SERVICES

USE OF ECOMIN VALUES TO DEVELOP “PMIN” DATA FOR POWER SYSTEM MODELS

Markets Committee Meeting

June 4, 2013

Proposed Change• Background: Power system models require the input of a

minimum power value for generators, the "PMIN" value described in PSSE and other software. The ISO and generator owners support the use of ECOMIN values to develop the PMIN value.

• Driver: Practical study needs and compliance with NERC MOD standards

• Proposed Scope: Change the info policy to allow the public release minimum power values derived from ECOMIN data for use as generator PMIN values in power system models

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