How much notice (in minutes) to the ISO-NE system operator is required to start and run a generator in the real-time market?
The System Operating Procedure SOP-RTMKTS.0110.0010 Maintain Real-Time Operational Data [PDF]. Section 5.4.3 Redeclarations for Commitment/DE-Commitment states 30 minute notice is required so the ISO can evaluate the system conditions and determine if the commitment/de-commitment can be accommodated.