Measuring Progress Towards GHG Reductions Presented by: Stefan Unnasch TOWN OF PORTOLA VALLEY Green Building Forum 5 April 2008 Corte Madera School Portola Valley, CA
(c) 2008 Town of Portola Valley Outline Goals and Objectives Climate Action Initiatives and Targets Measuring GHG reductions Potential GHG reduction measures 12/2/2018 (c) 2008 Town of Portola Valley
(c) 2008 Town of Portola Valley Goals and Objectives Develop 1990 baseline Calculate emissions for 2005 and beyond Estimate GHG reductions Examine emission reduction measures 12/2/2018 (c) 2008 Town of Portola Valley
Climate Action Initiatives Impact Targets Kyoto Protocol International GHG Trading 1990 base year 7% reduction by 2012 CA AB32 1 CA GHG Cap and Trade program 1990 levels by 2020 80% reduction by 2050 106 solar homes Displaces grid power 106 rooftops by 20xx CA AB1493 CA Vehicle GHG emission standard 20% reduction (per mile) by 2012 from 2008 baseline CA Low Carbon Fuel Standard CA transportation fuel carbon intensity 2004 base year 10% by 2020, 80% by 2050 CA AB1007 California fuels plan Full fuel cycle analysis No net material increase in emissions CA Renewable Portfolio Standard New renewables for electric power 33% by 2020 for IOUs 1Exec Order S-3-05: CA returns to 2000 levels by 2010, 1990 levels by 2020, 80% below 1990 by 2050. 2050 target adopted by Portola Valley Town Council 12/2/2018 (c) 2008 Town of Portola Valley
(c) 2008 Town of Portola Valley Data Collection Building Stock (Utility Data) Vehicle Fuel Use Other environmental impacts have less GHG impact 12/2/2018 (c) 2008 Town of Portola Valley
(c) 2008 Town of Portola Valley Data Collection PG&E Data Additional data and analysis is needed for Town government and schools 12/2/2018 (c) 2008 Town of Portola Valley
PV Baseline GHG Inventory See detailed report for assumptions and emission factors 12/2/2018 (c) 2008 Town of Portola Valley
Major Residential Building Activity 12/2/2018 (c) 2008 Town of Portola Valley
GHG emissions over time What about state measures? Additional local efforts? 12/2/2018 (c) 2008 Town of Portola Valley
Town and Resident Measures Vehicles and Fuels Buy carbon efficient vehicle Drive less Efficient hauling Homes Lighting, weather stripping, always on devices Greenups – windows, appliances, controls, insulation Solar PV and water Green building standards 12/2/2018 (c) 2008 Town of Portola Valley
Potential GHG Reduction Measures 12/2/2018 (c) 2008 Town of Portola Valley
(c) 2008 Town of Portola Valley Energy Tune Ups 12/2/2018 (c) 2008 Town of Portola Valley
GHG emissions over time 12/2/2018 (c) 2008 Town of Portola Valley
Working on Existing Homes Performing voluntary audit of 5 homes in representative neighborhoods Survey and engineering analysis Existing equipment and structure Possible modifications Windows, insulation, weather stripping Zone heating, AC Light controls CFLs, Power strips Clothes drying? 12/2/2018 (c) 2008 Town of Portola Valley
(c) 2008 Town of Portola Valley Conclusions Achieving GHG targets is challenging Need at least 5000 tonne/yr reduction by 2020 State measures affect gasoline, electric power, vehicle fuel economy Local action is essential to deal with home heating Rebuild/remodel of housing stock is slow therefore greenups are essential 12/2/2018 (c) 2008 Town of Portola Valley
(c) 2008 Town of Portola Valley Meeting GHG goals 12/2/2018 (c) 2008 Town of Portola Valley