Climate Change/Adaptation. Update to the San Francisco Public Utilities Commission. David Behar, Deputy to the AGM, Water November 23, 2009

Transcription

1 Climate Change/Adaptation Update to the San Francisco Public Utilities Commission David Behar, Deputy to the AGM, Water November 23, 2009

2 AMWA/NACWA Adaptation Study (Oct 2009) Confronting Climate Change: An Early Analysis of Water and Wastewater Adaptation Costs Water and Wastewater costs through 2050: $ Billion Exclusive of non-cc driven infrastructure needs Preliminary, first cut data still

3 Prior reported work: Water Enterprise Vulnerability Assessment Statistical modeling analysis (PEIR) through 2025 Hetchy watershed hydrologic modeling (HFAM) Current work underway: Water Quality study Local watershed modeling Natural Resources research Energy Intensity of water deliveries Pending area of inquiry: Comprehensive Water Supply Vulnerability Assessment through 2100

4 Wastewater Enterprise Planning for sea level rise (SLR) Incorporating latest analyses: BCDC/Pacific Institute Participated with Dutch consortium under contract with state for SF Bay wind and wave modeling on top of SLR Consulting regarding design standards for Treasure Island and Hunters Point Shipyard developments Building in resiliency to expected SLR effects Assuring adaptive management techniques and funding plans are provided to respond to longer term vulnerabilities Pending area of inquiry: Precipitation Intensity and implications for combined stormwater/wastewater collection system

5 Wastewater Enterprise Projected Sea Level Rise and Impacts to San Francisco s s combined sewer discharge points. Historical and Projected Monthly Mean Higher-High Water (MHHW) T/S Box Bay MHHW (NAVD), ft Lowest Overflow Weirs Rahmstorf (2007) High Global Sea Level Projection IPCC TAR High Estimated Global Projections MHHW (City Datum), ft 4 Historical Trends

6 Backflow Prevention Sunnydale Outfall

7 Water Utility Climate Alliance White Paper: Options for Improving Climate Modeling to Assist Water Utility Planning for Climate Change Due for release this month

8 Water Utility Climate Alliance Other WUCA initiatives Second white paper: Evaluating Decision Support Methods for Incorporating Climate Change Uncertainties into Water Planning (due January 2010) National Climate Service: Congressional testimony, new legislation pending Cap and trade bill: Water System Mitigation and Adaptation Partnerships program (currently in Kerry-Boxer bill, S- S 1733) Aspen Global Change Institute Workshop

9 Aspen Global Change Institute Workshop Organizers: NOAA, Oak Ridge NL, WUCA Top U.S. climate modelers and scientists Federal agency leaders (NOAA, BoR,, USGS) WUCA utilities policy and technical staff GOAL: Explore and expand linkages between advanced climate change science and modeling, climate services, and water resource management

10 Aspen Global Change Institute Workshop OUTCOMES: Relationships built between climate scientists and water resource managers Presented WUCA climate modeling white paper Committed to follow up process POST-ASPEN PROCESS: Modeling Workgroup Observations/Data Workgroup Water Supply Pilot Projects Urban Drainage Pilot Projects

11 Vulnerability Assessment The Chain of Models Climate Model(s) Watershed Model(s) Systems/Operations Model Decision Support Planning Methods Infrastructure Planning

12 Prospective San Francisco Modeling Approach: Water Lawrence Livermore Statistically Downscaled Database (PCMDI) High Resolution Global Climate Model (GFDL) North American Regional CC Assessment Program (NARCCAP) Watershed Models for HH And Local Watershed Systems/Operations Model (HHLSM) Decision Making (Decision Support Planning Methods) Infrastructure Planning

13 Prospective San Francisco Modeling Approach: Wastewater Lawrence Livermore Statistically Downscaled Database (PCMDI) High Resolution Global Climate Model (GFDL) North American Regional CC Assessment Program (NARCCAP) Revised Intensity Duration Frequency curve used for sewer design and overland flow Hydrologic/ Watershed Model (Infoworks) Decision Making (Decision Support Planning Methods) Infrastructure Planning

14 A Note on Uncertainty Pavel Kabat, Wageningen University and Research Center, Netherlands

15 Power Enterprise Energy Efficiency Programs (since 2/24/09) General Fund, Civic Center, Enterprise, and Block Grant funded In construction or complete Total Projects: 76 kw: 996 kwh: 5,985,254

16 Power Enterprise Renewable Energy Projects (since 2/24/09) All funded Solar: Sunset Solar City Hall Davies Symphony Hall MUNI 1095 Indiana Chinatown Health Ctr MUNI 700 Pennsylvania Small Hydro University Mound 5000 kw 100 kw 214 kw 104 kw 26 kw 125 kw 200 kw

17 Power Enterprise Community-wide Climate Action Plan Provided data and technical support to SFE for community-wide Climate Action Plan ghg emissions inventory update Provided data and technical support for California Climate Action Registry (CCAR) Directly reported Power ghg emissions to California Air Resources Board Mayor s s Departmental Climate Action Plan Produced SFPUC s s departmental Climate Action Plan - Report to Mayor s s Climate Team Produced quarterly energy use reports for CCSF departments Implemented ghg reduction initiatives at SFPUC facilities, including design review for capital projects Implemented energy conservation Best Practices PUC-wide

18 Thank you. Questions?