The ISO conducts CCAs to establish the winter and summer seasonal claimed capability (SCC) values for generator assets.
The main governing documents are as follows:
The ISO System Operating Procedures contain information on coordinating demonstrations with the ISO New England Control Room.
The types of claimed capability audits are as follows:
On September 1, 2013, the Claimed Capability Audit Tool (CCAT) on the SMD Applications homepage became the sole means of requesting, submitting, and reviewing CCAs. Participants must enter submissions and requests for all audit types in the CCAT. To access the CCAT, the user must meet the following criteria:
Additional CCA training materials are available at the ISO’s Training Materials webpage.
The lead market participant must submit a completed audit request through the CCAT by 5:00 p.m. on the fifth business day after the generator asset’s demonstration.
Seasonal and establish claimed capability audits can be performed anytime during a given capability demonstration period, provided that certain requirements are met. Refer to Market Rule 1, Section III.1.5.1, Claimed Capability Audits, for more details.
It depends. A generator asset’s summer and winter SCC values are the minimum of the seasonal and establish claimed capability audit values. If the seasonal value is less than establish value, then submitting a seasonal audit request for a self-scheduled run may result in an increase in the SCC value, provided that the seasonal value is greater than the existing value in the CCAT.
The lead market participant of a generator asset may perform as many seasonal claimed capability audits as it wishes during a given capability demonstration year, with the subsequently approved audit overwriting the previous audit value. Depending on the result, the new seasonal claimed capability audit value could have a positive or negative impact on the generator asset’s SCC value.
The SCC value is ultimately limited by the maximum net output allowed per the generator’s Interconnection Agreement (IA). For most generator assets, this value can be found as the network resource capability (NRC) in the Capacity, Energy, Loads, and Transmission (CELT) Reports.
A participant can check the CCAT to determine the limiting value and then conduct the appropriate audit type—establish or seasonal—for the generator asset.
The lead market participant can submit a seasonal claimed capability audit directly in the CCAT, but it must request an establish claimed capability audit.