Commitment cost enhancements phase 1

The ISO implemented tariff changes that: 1) allow the ISO, in the event of a significant price spike, to execute and settle the market using a gas price published on the morning of the day-ahead market run rather than the prior evening’s calculated gas price index; 2) increased the existing proxy cost bid cap from 100 percent of the resource’s calculated proxy cost to 125 percent; and 3) eliminated the registered cost option for all resources except use-limited resources. FERC directed the ISO to submit an informational report concerning the impact of these changes on longer term market design changes for commitment costs by Aug. 1, 2015.