Dealing with Balancing Authorities that retire

[grgmiller]

Retired BAs

As the EIA-930 data about page notes,

Entities occasionally stop performing the BA role because their electric system is incorporated into another BA's system or they have made other arrangements. Five BAs retired after July 1, 2015, the first date of EIA-930 data availability:

• Gila River Power, LLC (GRMA) – retired May 3, 2018
• Ohio Valley Electric Corporation (OVEC) – retired December 1, 2018
• Utilities Commission of New Smyrna Beach (NSB) – retired January 8, 2020
• Electric Energy, Inc. (EEI) – retired February 29, 2020
• PowerSouth Energy Cooperatives (AEC) – retired September 1, 2021

We need to implement a filter to remove retired BAs from final outputs if they retired prior to the reporting year. This leads to two additional questions:

• [ ] Once a BA retires, how do we determine which new BA to assign its generation to?
• [ ] If the BA retires mid-year, how should we treat that generation? We could 1) continue to assign it to the retiring BA for the entire year, 2) switch the generation to the new BA after the retirement date, 3) Assign the generation to the new BA for the entire year.