Energy imbalance market update Mark Rothleder Vice President, - - PowerPoint PPT Presentation

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Energy imbalance market update Mark Rothleder Vice President, Market Quality and Renewable Integration Board of Governors Meeting General Session November 4, 2015 Page 1 EIM operational update Benefits assessment for 2015-Q3 issued

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Energy imbalance market update

Mark Rothleder Vice President, Market Quality and Renewable Integration Board of Governors Meeting General Session November 4, 2015

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EIM operational update

Benefits assessment for 2015-Q3 issued

– First year benefits exceed $33 million

Pricing performance continued to perform well

– Frequency of infeasibilities overall below 1% – PACW Infeasibility events increased in September due to transfer constraints

Transfers:

– PACE to PACE transfers unavailable in September and October due to maintenance work – COI dynamic transfer capability increase

EIM supporting transfer data added to monthly

performance report

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Total first year of EIM benefits exceed $33M

BAA Nov – Dec 2014 Jan – Mar 2015 Apr – Jun 20151 Jul – Sep 20151 Total ISO

$1.24 M $1.45 M $2.46 M $3.48 M $8.63 M

PACE

$2.31 M $2.62 M $3.26 M $4.51 M $12.70 M

PACW

$2.42 M $1.19 M $4.46 M $4.01 M $12.08 M

Total

$5.97 M $5.26 M $10.18 M $12.00 M $33.41 M

1 Q2-2015 analysis based on 5-minute granularity. Prior analysis was 15-minute granularity.

Benefits are in millions of dollars.

Report contains following enhancements:

Estimated 5,699 metric-tons CO2 avoided by reduced renewable

curtailment in 2015.

Estimated 132 MW of average flexible reserve reduction as a result
f diversity

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$0 $20 $40 $60 $80 $100 $120 $140 $160 $180 $200 7-Nov 21-Nov 5-Dec 19-Dec 2-Jan 16-Jan 30-Jan 13-Feb 27-Feb 13-Mar 27-Mar 10-Apr 24-Apr 8-May 22-May 5-Jun 19-Jun 3-Jul 17-Jul 31-Jul 14-Aug 27-Aug 10-Sep 24-Sep Daily Average Price ($/MWh) Without price waiver Current Prices $0 $20 $40 $60 $80 $100 $120 $140 $160 $180 $200 7-Nov 21-Nov 5-Dec 19-Dec 2-Jan 16-Jan 30-Jan 13-Feb 27-Feb 13-Mar 27-Mar 10-Apr 24-Apr 8-May 22-May 5-Jun 19-Jun 3-Jul 17-Jul 31-Jul 14-Aug 27-Aug 10-Sep 24-Sep Daily Average Price ($/MWh) Without price waiver Current Prices

15-minute pricing continues to perform well

15-minute PACE Aggregate Price 15-minute PACW Aggregate Price

Pre Waiver Pre Waiver Waiver effective Waiver effective

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$0 $20 $40 $60 $80 $100 $120 $140 $160 $180 $200 7-Nov 21-Nov 5-Dec 19-Dec 2-Jan 16-Jan 30-Jan 13-Feb 27-Feb 13-Mar 27-Mar 10-Apr 24-Apr 7-May 21-May 4-Jun 18-Jun 2-Jul 16-Jul 30-Jul 13-Aug 27-Aug 10-Sep 24-Sep Daily Average Price ($/MWh) Without price waiver Current Prices $0 $20 $40 $60 $80 $100 $120 $140 $160 $180 $200 7-Nov 21-Nov 5-Dec 19-Dec 2-Jan 16-Jan 30-Jan 13-Feb 27-Feb 13-Mar 27-Mar 10-Apr 24-Apr 7-May 21-May 4-Jun 18-Jun 2-Jul 16-Jul 30-Jul 13-Aug 27-Aug 10-Sep 24-Sep Daily Average Price ($/MWh) Without price waiver Current Prices

5-minute PACE Aggregate Price 5-minute PACW Aggregate Price

Pre waiver Pre Waiver Waiver effective Waiver effective

5-minute pricing continues to perform well.

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PACE to PACW transfer unavailable part of September and October due to maintenance work

EIM transfers PACE to PACW

50 100 150 200 250 1-Nov 15-Nov 29-Nov 13-Dec 27-Dec 10-Jan 24-Jan 7-Feb 21-Feb 7-Mar 21-Mar 4-Apr 18-Apr 2-May 16-May 30-May 13-Jun 27-Jun 11-Jul 25-Jul 8-Aug 22-Aug 5-Sep 19-Sep 3-Oct 17-Oct

Hourly Average Transfer (MWh)

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EIM operations update

EIM transfers to and from PAC

50 100 150 200 250 1-Nov 15-Nov 29-Nov 13-Dec 27-Dec 10-Jan 24-Jan 7-Feb 21-Feb 7-Mar 21-Mar 4-Apr 18-Apr 2-May 16-May 30-May 13-Jun 27-Jun 11-Jul 25-Jul 8-Aug 22-Aug 5-Sep 19-Sep 3-Oct 17-Oct

Hourly Average Transfer (MWh)

Transfer to PAC Transfer from PAC

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Transfer into ISO by supporting resource type

Note: In the first two months of EIM operations (November and December 2014), EIM startup issues related to processing GHG bid adder resulted in the dispatch of coal generation to support transfers into California. Once GHG bid adders were properly accounted for, beginning in January 2015, almost all of the EIM dispatches to support transfers into the ISO were from resources

ther than coal, as documented in the above table.

http://www.caiso.com/Documents/MarketPerformanceReport_August_2015.pdf.

Month Coal (%) Gas (%) Non- Emitting (%) Total 14-Nov 3.66% 11.11% 85.23% 100% 14-Dec 24.18% 10.78% 65.04% 100% 15-Jan 0.06% 6.04% 93.90% 100% 15-Feb 0.32% 88.89% 10.79% 100% 15-Mar 0.46% 99.54% 0.00% 100% 15-Apr 0.13% 65.48% 34.39% 100% 15-May 0.00% 84.37% 15.63% 100% 15-Jun 0.00% 72.95% 27.05% 100% 15-Jul 0.00% 65.16% 34.84% 100% 15-Aug 0.02% 86.48% 13.50% 100%

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EIM implementation update

Year 1 Enhancement approved by FERC scheduled

for implementation November 4

FERC approved 6-month transition period for new

EIM entities

Nevada Energy implementation delayed from

November 1 awaiting necessary FERC orders

Puget Sound Energy and Arizona Public Service