Gas and Electric Coordination Background

Brad BouillonDirector, Regional Operations Initiatives

CAISO Gas and Electric Coordination Activities

• Shares information pursuant to non-disclosure agreements

• Sends hourly estimated gas burn profiles to pipeline companies each day

• Holds quarterly meetings to discuss outage impacts, and bi-weekly calls for status updates

• Conducts morning conference calls on cold days with gas operations counterparts on system conditions

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FERC has Increased its Focus on Gas/Electric Inter-dependence

• Continues to reviews actions to Improve cold-weather grid performance

• Issues quarterly updates on gas-electric coordination

• Proposed Reforms to improve coordination of gas-electric scheduling

• Authorized natural gas pipelines and electric transmission operators to share non-public operational information to promote the reliability and integrity of their systems.

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Gas/Electric Scheduling Coordination Differences

• Different flow rates

• Different true up methodology

• Different timelines

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D-2 TDD-1

0800

1600

09301100

15001500

Ec

Gc and p

Proposed: Blue bottomCurrent: Orange bottom

Potentially Changing Gas Timelines, Compared with Electric Market Timeline

* - May change based on recent FERC/NAESB activities

1530Balancing

1900 2000

7-days 13001000

1HR + 75m

ATF

X-days

Final Observations

• Ongoing effort

• Focus is on future system, process and communication improvements

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Questions?

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