California Energy Code

The California Energy Code (also titled The Energy Efficiency Standards for Residential and Non-residential Buildings), called simply Title 24 in industry, is the sixth section of the California Building Standards Code. The code was created by the California Building Standards Commission in 1978 in response to a legislative mandate to reduce California's energy consumption. These standards are updated periodically by the California Energy Commission. The code includes energy conservation standards applicable to most buildings throughout California.

A 2020 study found that the 1978 energy code successfully reduced energy consumption, and that the implementation of the policy passed a cost-benefit test.

History

California was the first state to implement minimum energy efficiency standards in 1974. It was the first to establish an energy regulation commission – the California Energy Commission. These regulations and codes have been in effect since 1974. California has the lowest per capita energy consumption in the US.

2008 Code

Updated standards were adopted on April 23, 2008, and the Building Standards Commission approved them for publication on September 11, 2008. The 2008 Residential Compliance Manual was adopted by the Commission on December 17, 2008, and the 2008 non-residential Compliance Manual was adopted on January 14, 2009.

The 2008 changes to the Building Energy Efficiency Standards were intended to:
* Provide California with an adequate, reasonably-priced, and environmentally-sound supply of energy.
* Respond to Assembly Bill 32, the Global Warming Solutions Act of 2006, which mandated that California reduce its greenhouse gas emissions to 1990 levels by 2020.
* Meet the West Coast Governors' Global Warming Initiative commitment to include energy efficiency measures into state building codes.
* Meet the Executive Order in the Green Building Initiative to improve the energy efficiency of non-residential buildings.

Purpose

The code's purpose is to advance the state's energy policy, develop renewable energy sources and prepare for energy emergencies. The codes are divided into residential and non-residential sections.

Structure

The three general parts, which include all the responsibilities and criteria of the standards, are:
* Mandatory Requirements
* Performance Standards
* Prescriptive Standards

All buildings must follow the mandatory requirements. Performance standards vary by the building location and type.

These parts are designed to accomplish the following:
* Forecast future energy need
* Support energy and technology research
* Develop renewable energy resources
* Develop renewable transportation fuels and technologies

Climate zones

California has 16 different climate zones. Standards vary based on zone:

* Arcata
* Santa Rosa
* Oakland
* San Jose Reid
* Santa Maria
* Torrance
* San Diego
* Fullerton
* Burbank
* Riverside
* Red Bluff
* Sacramento
* Fresno
* Palmdale
* Palm Springs
* Blue Canyon

2019 Code

The 2019 California Energy Code (Building Energy Efficiency Standards) become effective on January 1, 2020. It focuses on such areas such as residential photovoltaic systems, thermal envelope standards and non-residential lighting requirements.

Homes built under this code are about 53% more energy efficient than those built to comply with the 2016 Energy Code. This code provides a market for "smart" technologies.

The 2019 Code added photovoltaic system requirements for low-rise residential buildings. Exceptions grant a reduction in size for photovoltaic systems.

The 2019 Code has simpler non-residential forms and reduces their number from 47 forms to 10. Each building component has one form per category:
* Electric Power Distribution
* Outdoor Lighting
* Indoor Lighting
* Sign Lighting
* Solar Ready
* Commissioning
* Thermal Envelope
* Covered Processes
* Mechanical
* Water Heating

See also

* Energy law
* Indoor air quality

References

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External links

* http://www.energy.ca.gov/title24

Energy Code
Energy in California
Energy in the United States
Environmental law in the United States
United States energy law