I'm impressed with the new building efficiency standards and in particular the Solar Ready roof requirement. Can you tell me what the Solar Ready roof requirement costs are per home or business? Is this information broken out in the analysis?
The report for nonresidential buildings can be found at http://www.energy.ca.gov/
title24/2013standards/ prerulemaking/documents/ current/Reports/ Nonresidential/Water_Heating/ 2013_CASE_PowerDist3_ NonResSolarReady_9.30.2011.pdf . While there was an added cost determined for single family homes, there was no added cost for nonresidential buildings. Below is an excerpt from this report explaining why.From the Nonresidential Solar-ready Building Report done by the California Utilities Statewide Codes and Standards Team3.5 Cost Effectiveness MethodologyThe proposed code change does not require equipment installation nor does it have any incrementalmaintenance costs. The only costs associated with the measure are design costs. Initially designerswill need to familiarize themselves with the solar-ready requirement, but over time design willbecome streamlined and the costs will be minimal. The LCC Methodology does not include designcosts in the costs of a measure, so for LCC purposes the measure has no costs.A list complete with links for all documents relied upon for the development of the 2013 Building Energy Efficiency Standards can be found at http://www.energy.ca.gov/ title24/2013standards/ rulemaking/documents/ISOR_ Documents_Relied_Upon.pdf.If you have any further questions, feel free to email back at the hotline email address below, or contact us by phone at (800) 772-3300.Best regards,Javier PerezEnergy Standards Hotline StaffCalifornia Energy Commission1516 Ninth StreetSacramento, CA 95814