What is the intent of Appendix H?
During January 2004, New England experienced some of the most extreme winter weather in recent history. As a result, ISO New England and NEPOOL have filed with the FERC enhancements to our current markets to help alleviate potential situations that could impact the reliability of the New England grid during such extreme cold weather conditions. Appendix H primarily addresses the need for electric scheduling certainty necessary to support Day-Ahead gas nominations by owners of natural gas units. In addition to enhancing the coordination of the gas and electric markets Appendix H also defines processes that will enable the ISO to forecast and operate with greater certainty and facilitate higher unit availability during Cold Weather Conditions.
