11 ATTACHMENTS 6 TO 13 - Laserfiche WebLink

1. Energy Cost - Effectiveness Case Studies Using the 2008 Title 24 Building Energy Efficiency Standards (Appendix 2: www.stopwaste.org/docs/att3pge- final -cz3 -cost- effectiveness-report.pdf and Appendix 3: www.stopwaste.org/docs/att4- pge -final- cz 12 -cost- effectiveness - report.pdf ) Local jurisdictions that intend to adopt green building policies requiring energy efficiency beyond code must submit a cost - effectiveness study and findings to the California Energy Commission (CEC) for approval and file the findings with the California Building Standards Commission (BSC). This cost - effectiveness study must be updated whenever the energy code changes, typically every three years. In April of 2009 the WMA Board adopted the Alameda County -wide cost - effectiveness study, which examined the code change cost implications to new construction projects in Climate Zones 3 and 12. This countywide study may be used by Alameda County jurisdictions wishing to adopt mandatory energy policy(ies) that exceed the State's Building Energy Efficiency Standards. In early 2010, PG &E released a regional cost - effectiveness study that includes Alameda County. Due to a software update and different methodologies used in the study, there are small differences between the PG &E study and the earlier County -wide study: • The 2009 County -wide study looked at the incremental cost for beating energy code by 10 %, 15 %, 20 %, and 35 %, whereas the 2010 study only looked at a 15% improvement above code. • Except in one case, costs for the 2010 study showed lower incremental costs per square foot than the 2009 study. The only exception was for high -rise multifamily where a different building size was used in the analysis and the 2010 cost was about l /3` higher than the 2009 study. WMA staff recommends that the Board adopt the PG&E energy efficiency cost - effectiveness studies so that member agencies have the option of using either the PG &E or the Alameda County-wide study. Updated Model Findings (Appendix 4: www.stopwastc.org/docs/att5- model- findings- including-cd- info- 9- 9- 10.pdt) The California Building Standards Commission (BSC) specifically stated that local government entities retain their discretion to exceed the standards established by the 2011 California Green Building Standards Code. It is important to note however, that local climatic, geological, or topographical findings (which may include local environmental conditions as established by the city, county, or city and county) must be filed with the BSC for adopted local policies that require building standards that are different and more restrictive than the California Green Building Standards Code. The BSC does not review or approve these findings. The attached model findings describe county -wide conditions and provide a template for Alameda County jurisdictions to customize with specific local data. These findings (in addition to findings regarding energy- efficiency outlined above) have to be filed with the BSC. These findings have been updated to include language justifying construction waste recycling mandatory provisions above and beyond CALGreen mandatory minimums.