The California ISO’s notice on Aug. 20, 2021, stated that the deadline for paying invoices with the North American Electric Reliability Corporation/Western Electricity Coordinating Council (NERC/WECC) fees will be Sept. 19, 2021. Market participants should be aware that because September 19, falls on a Sunday, it will be difficult to send payment to the ISO on that date. Moreover, payments received on September 20, or later will be considered late under the Tariff section 11.20.5. Therefore, the ISO recommends that market participants plan to submit payments no later than Friday, September 17, which is the final business day before the payment deadline.

The full text of the original April 20, 2021 notice follows:

The ISO published preliminary NERC/WECC statements and invoices for 2022 NERC/WECC charges to the Market Results Interface-Settlements (MRI-S) and the Secure File Transfer Protocol (SFTP) server on Aug. 20, 2021. The charges for assessment year 2022 appear on the NERC/WECC initial statement under charge code (CC) 6490, with Jan. 1, 2020, as the trade date.

The preliminary NERC/WECC charge rate for assessment year 2022 is provided below for scheduling coordinators' information pursuant to ISO Tariff section 11.20.4.

Payments for the preliminary NERC/WECC charges are due by 10 a.m. (Pacific Time) on Sept. 19, 2021, pursuant to ISO Tariff section 11.20.5.

Market participants should be aware that, because Sept. 19 falls on a Sunday, it will be difficult to send payment to the ISO on that date. Payments received on September 20, or later will be considered late under the Tariff section 11.20.5; therefore, the ISO suggests that market participants plan to submit payment on the final business day no later than Friday, September 17, which is the final business day before the payment deadline specified in the Tariff.

On June 7, 2021, the ISO posted NERC/WECC information files to the MRI-S and the SFTP server in accordance with the approved tariff provisions for review by scheduling coordinators.