Agenda Item 3.0 PSPC Meeting 237 December 21, 2007

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Agenda Item 3.0

PSPC Meeting 237

December 21, 2007

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Maintenance Standards for the Forward Capacity Market

Presentation to the ISO NE Power Supply Planning Committee

Maintenance Standards for the Forward Capacity Market

Presentation to the ISO NE Power Supply Planning Committee

Debra Richert – Vice PresidentReiner W. Kuhr – Senior Executive Consultant

Robert H. Whalley – Senior ConsultantCarolyn Gusick -- Consultant

Shaw Stone & Webster Management ConsultantsDecember 21, 2007

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OverviewOverview

• S&W presented analysis of historical outages and tasks to PSPC at two separate meetings– August 16, 2007– September 19, 2007

• Using this analysis as a guideline combined with the experience of S&W in the field of generator maintenance practices, recommended maintenance allotments were made

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DefinitionsDefinitions

ESOH is “Equivalent Scheduled Outage Hours” which account for partial outages (i.e. a 50% reduction in load over one hour is equal to 0.5 ESOH)

EOH is “Equivalent Operating Hours” used by combustion turbine manufacturers to track planned maintenance intervals

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Summary of Suggested Annual Outage ESOH and Major

Maintenance Hours Summary of Suggested Annual Outage ESOH and Major

Maintenance Hours Type Suggested Annual

Outage ESOHMajor Maintenance Hours

Coal Fired Steam Plant - subcritical 600 1800 hours to be allocated over 9 years

Coal Fired Steam Plant - supercritical 700 2100 hours to be allocated over 9 years

Oil and Dual-fired Steam Plant - subcritical 500 2000 hours to be allocated over 9 years

Oil and Dual-fired Steam Plant - supercritical

600 2300 hours to be allocated over 9 years

Natural Gas Fired Steam Plant 500 2000 hours to be allocated over 9 years

Waste Fuel Fired Steam Plant 500 2000 hours to be allocated over 9 years

Combined Cycle Combustion Turbine Plant 400 600 hours to be allocated over 9 years

Natural Gas Simple Cycle Turbine Plant 300 300 hours no more than once in 3 years

Jet Fuel Fired Simple Cycle Turbine Plant 300 300 hours no more than once in 3 years

Oil Fired Simple Cycle Turbine Plant 500 170 hours no more than once in 3 years

Internal Combustion Engine Plant 250 830 hours no more than once in 3 years

Nuclear Power Plant 300 800 hours no more than twice in 3 years

Hydro Power Plant 550 1400 hours no more than once in 10 years

Pumped Storage Power Plant 550 1400 hours no more than once in 10 years

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Summary of Typical Annual Outage and Major Maintenance Hours

Summary of Typical Annual Outage and Major Maintenance Hours

• The breakdown of typical annual maintenance activities used in developing the recommendation are described in the following slides

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Typical Maintenance Activities for Subcritical Coal-Fired Steam Units Typical Maintenance Activities for

Subcritical Coal-Fired Steam Units

Year Maintenance Activity Scheduled Hours

1 Spring inspection, BI 600


3 Spring inspection,

BI,extended repairs 1200







9 Spring inspection, BI, ST

overhaul 1200

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Typical Maintenance Activities for Supercritical Coal-Fired Steam Units

Typical Maintenance Activities for Supercritical Coal-Fired Steam Units













overhaul 1400

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Typical Maintenance Activities for Subcritical Oil Fired and Dual-Fired

Steam Units

Typical Maintenance Activities for Subcritical Oil Fired and Dual-Fired

Steam Units Year Maintenance Activity Scheduled Hours












overhaul 1170

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Typical Maintenance Activities for Supercritical Oil Fired and Dual Fired

Steam Units

Typical Maintenance Activities for Supercritical Oil Fired and Dual Fired

Steam UnitsYear Maintenance Activity Scheduled Hours












overhaul 1370

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Typical Maintenance Activities for Gas Fired Steam Units

Typical Maintenance Activities for Gas Fired Steam Units













overhaul 1170

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Typical Maintenance Activities for Waste Fired Steam Plants

Typical Maintenance Activities for Waste Fired Steam Plants


1 Spring inspection, BI 500 2 Spring inspection, BI 500


BI,extended repairs 1170 4 Spring inspection, BI 500 5 Spring inspection, BI 500


BI,extended repairs 1170 7 Spring inspection, BI 500 8 Spring inspection, BI 500


overhaul 1170

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Typical Maintenance Activities for Hydro Plants

Typical Maintenance Activities for Hydro Plants


1 Annual Routine 550









10 Turbine Major Maintenance 1950

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Typical Maintenance Activities for Pumped Storage Plants

Typical Maintenance Activities for Pumped Storage Plants











10 Turbine Major Maintenance 1950

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Typical Maintenance Activities for Combined Cycle Units

Typical Maintenance Activities for Combined Cycle Units


1 CI 300

2 CI 300

3 HGPI 450

4 CI 300

5 CI 300

6 MI 800

7 CI 300

8 CI 300

9 HGPI/ST 1200

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Typical Maintenance Activities Natural Gas Fired Simple Cycle Combustion Turbine Plant

Typical Maintenance Activities Natural Gas Fired Simple Cycle Combustion Turbine Plant


1 CI 250

2 CI 250

3 HGPI 400

4 CI 250

5 CI 250

6 MI 800

Maintenance needed based on equivalent starts and stops and/or equivalent hours

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Typical Maintenance Activities for Jet Fuel Fired Gas Turbines

Typical Maintenance Activities for Jet Fuel Fired Gas Turbines


1 CI 250

2 CI 250

3 HGPI 400

4 CI 250

5 CI 250

6 MI 800


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Typical Maintenance Activities for Oil Fired Combustion Turbine Plants

Typical Maintenance Activities for Oil Fired Combustion Turbine Plants


1 CI 300

2 CI 300

3 HGPI 400

4 CI 300

5 CI 300

6 MI 900


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Typical Maintenance Activities for Reciprocating Engine Plants

Typical Maintenance Activities for Reciprocating Engine Plants


1 Annual 250

2 Annual 250

3 Internal 830

20

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DiscussionDiscussion

Documents

Agenda Item 3.0 PSPC Meeting 237 December 21, 2007