combined cycle power plant project -...
TRANSCRIPT
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GWF TracyGWF TracyCombined Cycle Power Plant Project - 08-AFC-7Project 08 AFC 7
DATE RECD.
DOCKET08-AFC-7
OCT 28 2008
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P j t L tiProject Location
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Vicinity Map
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Existing GWF Tracy Peaker PlantSimple Cycle
Two Combustion Gas Turbines –170MWs
Operational in May 2003
10-year Power Purchase Agreement 10 year Power Purchase Agreement
Community benefits - $1.3 million for Environmental Benefits and Environmental Benefits and Charitable Giving
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T P k Pl tTracy Peaker Plant
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Combined Cycle C i B fitConversion Benefits
Additional MW to Meet Growing dDemand
Increase Efficiency Use of Existing Infrastructure Minimizes ImpactsLower Emissions Per MW8000 hours/yr of Availability
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K P j t F tKey Project FeaturesTwo New Heat Recovery Steam Two New Heat Recovery Steam Generators (Limited Supplementary Natural Gas) and StacksNew 145 MW Steam Turbine Generator
New Air Cooled Condenser For Steam Cycle
Relocate Storm Water Retention Basin
New Auxiliary BoilerNew Auxiliary Boiler
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Mi F t i t ChMinor Footprint Changes
Annual Water Usage Increase of 25 acAnnual Water Usage Increase of 25 ac--Annual Water Usage Increase of 25 acAnnual Water Usage Increase of 25 ac--feet per year feet per year Increase Plant Footprint by 3 3 acres Increase Plant Footprint by 3 3 acres Increase Plant Footprint by 3.3 acres Increase Plant Footprint by 3.3 acres Temporarily Disturb 12.3 acresTemporarily Disturb 12.3 acresOnsite Relocation of Storm Water Onsite Relocation of Storm Water Onsite Relocation of Storm Water Onsite Relocation of Storm Water Retention BasinRetention Basin
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G l A tGeneral Arrangement
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El t i l I t tiElectrical Interconnection
Modify Onsite 115-kv Switchyard
Adjacent Interconnection to Tesla-Adjacent Interconnection to TeslaManteca 115-kv Line
Reconductoring of Three Short Offsite Reconductoring of Three Short Offsite Transmission Line Segments (3 miles total))
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Transmission Interconnect U dUpgrades
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Ai Q lit I tAir Quality Improvements
h ff lHigher Efficiency Emission ControlsSelective Catalytic Reduction - NOx
Oxidation Catalyst – CO and VOC
Lower Concentration LimitsNOx 2 ppmvd @15% O2
CO 2 ppmvd @15% O2
VOC 2 ppmvd @15% O2
NH3 5 ppmvd @ 15% O2
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GWF Tracy E i i C iEmissions Comparison
P ll t t
Existing Limit
ppmvd @ 15% O
Proposed Limit
ppmvd @ 15% O
Existing Emission
Rate(lb/h )
Proposed Emission Rate
(lb/h )Pollutant 15% O2 15% O2 (lb/hr) (lb/hr)
NOx 5 2 26.45 10.3
CO 6 2 26.57 6.0
VOC 2 2 2.42 3.2
PM10 /PM2.5 NA NA 3.3 5.8
SO2 NA <1 0.78 2.6
Ammonia 10 5 NA 9.4
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GWF Tracy Annual Emissions
DescriptionNOx(lb)
CO(lb)
VOC(lb)
PM10/2.5(lb)
SO2(lb)
TPP – Currently Permitted Emissions (2 Turbines) 306,920 143,240 26,732 53,334 11,200( )
Post Project Potential to Emit 180,566 161,845 32,117 66,995 13,899
Project Emissions Change -126,354 18,605 5,385 13,661 2,699
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GWF Tracy – Noise
Designed to Achieve 42 dBA or Less Designed to Achieve 42 dBA or Less at Nearest Residence
GWF Tracy will Comply with the San Joaquin County Noise Ordinance.
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N b N i R tNearby Noise Receptors
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Vi l RVisual ResourcesNo Visible PlumesNo Visible Plumes
Landscape Plan Review
Major Equipment Color Chosen To Blend Major Equipment Color Chosen To Blend With Surrounding Environment
Key Observation Point Analysis – No Si ifi t I tSignificant Impact
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K Ob ti P i tKey Observation Points
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KOP 1L Rd t W t S h ltLammers Rd. at West Schulte
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KOP 1 – Proposed ModificationspLammers Rd. at West Schulte
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Additi l Q tiAdditional Questions
h l dDoug Wheeler – Vice President
925-431-1443
Mark Kehoe – Director, Mark Kehoe Director, Environmental & Safety
925-431-1440925 431 1440