HomeMy WebLinkAbout04. (Handout) Presentation for Gasification discussion Item 4.
(Committee Handout)
GASIFICATION CONCEPT
Melody LaBella, P.E.
Resource Recovery Program Manager
-� Real Estate, Environmental
_ & Planning Committee Meeting
December 13, 2016
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Delta
Diablo ..
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Energy
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PROJECT DRIVERS — DELTA DIABLO
• Diversification of biosolids disposal
• Reduced volume of biosolids requiring
long-distance hauling to Solano/Merced
Counties
• Reduced liability associated with the
uncertainty of land application
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PROJECT BENEFITS — DELTA DIABLO
• Securing reliable, nearby disposal for a
portion of their biosolids
• Community partner
• Reduction of greenhouse gas emissions
(reduced truck traffic)
• Production of renewable energy
• Potential (minor) revenue source
associated with biochar
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HOW GASIFICATION FITS IN AT
DELTA DIABLO
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Delta
Diablo
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PROJECT DRIVERS — CENTRAL SAN
• Single solids handling method
• Little flexibility or redundancy
• Permitted capacity of multiple hearth
furnaces
• Growing regulatory pressures on air
emissions
• High anthropogenic greenhouse gas
(GHG) footprint due to CoGen
• Declining landfill gas supply
1
PROJECT BENEFITS - CENTRAL SAN
• Onsite source of renewable energy
• Would allow elimination of Cogen
• Dramatically reduce natural gas purchases
• Dramatically reduce anthropogenic GHGs
• Would eliminate potential for exceeding
current threshold for participation in Cap &
Trade Program for GHGs
• Diversify solids handling
• Reduce loading on the furnaces
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HOW GASIFICATION FITS IN AT
CENTRAL SAN VIV
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Wood Waste
Gasification
MULTIPLE HEARTH
". INCINERATION
Renewable Electrkity e.v n„ [ecfYB1A11d1
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HOW CENTRAL SAN'S STEAM
DEMAND IS CURRENTLY MET
Wasto Heat
Boilers Co-generation
11'e 43
Auxiliary Boilers
16%
WHAT'S NEXT?
• Continue meeting with Delta Diablo
• Draft RFP for solicitation?
o Implementation Plan & develop RFP
• CEQA
• Truck traffic
• Jurisdiction
', • Access
• Title V (BAAQMD Air Permit)
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QUESTIONS?