Energy Design Resources is funded by California utility customers under the auspices of the California Public Utilities Commission.
A wealth of information about energy-efficient building practices is available in EDR's Design Briefs, Design Guidelines, Case Studies, and Technology Overviews.
Guidance on energy requirements for residential HVAC changeouts is presented in a visual, easy to understand format in this quick reference document. Determine which requirements apply to your project, including mandatory measures and HERS verification by downloading it. Helpful hints for completing compliance documentation is also included.
This two page factsheet is packed with basics you need to know about meeting energy requirements for residential fenestration designs. Performance requirements per climate zone, helpful hints in completing compliance forms and direction on presriptive vs. performance approach are highlighted.
Determining which compliance path is most appropriate for your project, and what it really means can be confusing. This one page document provides basic information on mandatory versus prescriptive versus performance requirements.