What Energy Uses Are Regulated In Buildings ?
The California Energy Code applies to all residential and non-residential buildings except hospitals, nursing homes, and jails. It controls energy efficiency in new and existing buildings to enhance outdoor and indoor environmental quality by regulating a building’s “energy budget” for consuming hydro-carbon fuel and electricity for room heating, cooling, and ventilation, water heating, indoor and outdoor lighting and signs. The Energy Code also has mandatory requirements for the manufacturing, construction, and installation of building components, including
- solar retrofitting
- space-conditioning equipment
- pool and spa controls and equipment
- water heating controls and equipment
- windows, skylights, and exterior doors
- insulation, roofing, and radiant barriers
- lighting controls, ballast, and luminaires
What Standards Are Approved For Designing An Energy Budget ?
California is divided into 16 zip-coded climate zones, each of which has different weather data, prescriptive packages, and energy budgets. The Energy Budgets (designed maximum energy consumption) for new buildings, additions, and alterations have the same mandatory elements, but may have different prescriptive (“cook book”) and performance (computer software) elements. Energy Budgets cover the building envelope, space-conditioning systems, water heating systems, and indoor and outdoor signs and lighting.
The Energy Commission does not independently confirm that manufacturers’ certifications of their equipment, products, and devices meet Energy Code requirements.
What Are The 2013 Changes To The Energy Code?
The 2013 Energy Code, which is effective July 1, 2014, uses 25% less energy for lighting, heating, cooling, ventilation, and water heating than the 2008 regulations. Enhancements using a combination of efficiency and renewable energy generation will be continue to be adopted toward a goal of Zero Net Energy consumption in new homes by 2020 and new commercial buildings by 2030.
Major changes in 2013 prescriptive, mandatory and recommended regulations are listed in the California Energy Commission’s Summary Sheet.
- Time Dependent Valuation energy is used to compare prescriptive designs with energy budgets.
- Home Energy Rating System is an audit of an existing home’s energy budget to identify which upgrades will be the most cost-effective.
- Certified Energy Plans Examiners prepare Title 24 energy calculations. The CEPE program is administered by the California Association of Building Energy Consultants.
- Seasonal Energy Efficiency Rating is the electrical efficiency rating of air conditioning equipment.
- Outdoor lighting design is based on a building’s proximity to one of three Lighting Zones based on Census Bureau boundaries. Zones 1 and 2 are rural areas, and Zone 3 is urban areas. Jurisdictions may create a special Zone 4.
BUILDING in CALIFORNIA
Building Standards Commission
California Energy Commission
- Title 24 Website
- Title 24 Training
- 2013 Residential Energy Standards, an Infographic
- Building Energy Efficiency Standards FAQ
- Compliance software (performance approach – energy budget)
- Home Energy Rating System program
- Local energy standards ordinances
- Manufacturer certified equipment, products, & devices
- Outdoor Lighting Zones
- Residential Zonal Control Systems Fact Sheet
- Solar Index Reflectance Calculator
- Energy Code Ace
“One-stop shop” for a suite of free trainings, tools and resources designed to improve compliance with the state’s energy code by helping to “decode” Title 24. Developed by the California Statewide Codes& Standards Program in support of the CEC.
- ASHRAE link and Free Indoor AIr Quality Guide Download
- Energy Star Products and Links
- 2013 Energy Standards
- Building Climate Zones
- CALGREEN State & Local Government Green Building Ordinances
- DSA (Division of the State Architect) Frequently Used Forms
- Electric Vehicle Charging Station Permitting Guidelines-Commercial and Residential
- Energy Incentives: Building Envelope Basics & More – Irvine
- Energy Videos, Checklist & Guides – CA Energy Commission
- Hot Water Distribution Systems – Gary Klein [Courtesy of IAPMO Official Magazine
- Kohler generators
- HVAC Installation Ace for Nonresidential Buildings
- HVAC Installation Ace for Residential Buildings
- Solar Water heating requirements (Los Angeles)
- PV Installtion tutuorial (sacramento Utility District and Solar Energy Industries Association)
- solar photovoltaic guideline
- Solar Permitting Guidebook for California – 2012
- Solar Rating & Certification Corporation (SRCC) Ratings Page
- Solar Water Heating Handout – Los Angeles LADBS
- Title 24 Nonresidential Compliance Manual & Forms
- Title 24 Residential Compliance Manual & Forms
- Ventilation Requirements: ASHRAE 62.1 – 2010
- California Ventilation Guide