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Quick and accurate settlements help markets function

Settlements are the calculation, billing, and invoicing of charges and payments for market and transmission-related activities between market participants and the ISO. The settlement cycle follows a specific timeline and processes for publication of statements, invoices and payment advices, dispute submittals and payments.

Market and administrative charges

Many specific charge type categories are used within ISO settlements and invoice processes according to a Market Participant's involvement in the ISO Markets.

Credit policy

The credit policy is detailed in the ISO Tariff and the Business Practice Manual for Credit Management. Consistent with the policy, market participants use the following forms to demonstrate that they meet the ISO minimum participation and financial security requirements and to request an unsecured credit limit.

Settlements technical documentation

Retroactive settlements

Dispute processes 

We provide guidance for submitting timely, valid and effective disputes with adequate supporting information. 

Reliability must run settlements

Settlement information for the annual agreements between the ISO and qualified generators.

Settlements archive