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Home > Stay Informed > Stakeholder Processes > Aliso Canyon Gas-Electric Coordination

​Aliso Canyon gas-electric coordination

Phase 1 of this initiative addressed the gas-electric market coordination concerns raised by the limited operations of the Aliso Canyon gas storage facility. The resulting provisions were approved by FERC and will sunset on November 30, 2016. Aliso Canyon Phase 2 will evaluate and propose to either retire, extend or adjust the interim measures approved for the summer period and will file with FERC to seek authority to retain the needed measures through the winter period. Phase 3 proposes to extend the temporary market and operational tools currently in place so that they remain in effect beyond November 30, 2017. Phase 4 proposes to further extend the measures for an additional year.

 

Initiative status

Phase 4
FERC approval: November 26, 2018, in part
Tariff amendment filing: September 28, 2018
Phase 3 Implemented: November 30 and December 16, 2017
Phase 2 Implemented: November 30, 2016
Phase 1 Implemented: June 2 and July 6, 2016

 

Phase 4

FERC filings and orders

Tariff development

Market notices

Joint agency collaboration

The California Public Utilities Commission, California Energy Commission, California Independent System Operator, and Los Angeles Department of Water and Power are collaboratively assessing Aliso Canyon's role in electric reliability in the greater Los Angeles area.

 

Completed phases

Phase 3

Effective November 30 and December 16, 2017, Phase 3 extended the interim temporary market and operational provisions to remain in effect until November 30, 2017.

Implemented: November 30 and December 16, 2017
FERC approval: November 28 and December 15, 2017
Tariff amendment filing: September 29 and December 1, 2017
Board of Governors approval: July 26, 2017

  • Dec 1, 2017 Tariff amendment - re-implement expired provisions - Aliso Canyon gas-electric coordination enhancement (ER18-375)
  • Sep 29, 2017 Tariff amendment - Aliso Canyon electric-gas coordination enhancements phase 3 (ER17-2568)
  • Aliso Canyon gas-electric coordination phase 3 - papers and proposals
  • Aliso Canyon gas-electric coordination phase 3 - tariff language
  • Notice of decisional classification for phase 3 - EIM Governing Body role

 

Phase 2

Effective November 30, 2016, Phase 2 extended the interim measures approved for the summer period and retained those provisions through the winter period, as approved by FERC.

Implemented: November 30, 2016
FERC approval: November 28, 2016 and March 24, 2017
Tariff amendment filing: October 14, 2016
Board of Governors approval: October 3, 2016

 

Phase 1

The ISO activated on June 2, 2016, two features: 1) the ability to rebid commitment costs for resources not picked up in the day ahead market, and 2) a new CMRI report showing the D+2 report was populated on June 5, 2016. On July 6, the ISO activated adjusted gas price indexes to calculate commitment and default energy bids for affected resources in the Southern California Gas Company and San Diego Gas & Electric systems, and gas price information used to increase efficiency of economic dispatch.

Implemented: June 2 and July 6, 2016
FERC approval: August 26, 2016
Tariff amendment filing: May 9, 2016
Board of Governors approval: May 4, 2016
  • May 9, 2016 Tariff amendment - enhance gas-electric coordination - address limited operability - Aliso Canyon (ER16-1649)
  • Aliso Canyon gas-electric coordination phase 1 - implementation
  • Aliso Canyon gas-electric coordination phase 1 - papers and proposals
  • Aliso Canyon gas-electric coordination phase 1 - tariff language
  • Aliso Canyon gas-electric coordination phase 1 - working group