Power Source Disclosure

Sample Power Content Label

The Power Source Disclosure program was established to provide "accurate, reliable, and simple-to-understand information on the sources of energy that are used to provide electric services" to California consumers (Public Utilities Code Section 398.1(b)).

Enacted in 1997 (Senate Bill 1305, Sher, Statutes of 1997), the law requires that electricity retail suppliers to disclose to consumers which types of resources are used to generate electricity being sold. The suppliers are required to use a format developed by the Energy Commission called the Power Content Label. An example of a Power Content Label is shown on the right. The law also requires retail suppliers to submit a detailed report of their resource mix to the Energy Commission.

The program was significantly changed by Assembly Bill (AB) 162 (Ruskin, Statutes of 2009) in response to many changes in the electricity market since 1997, including the development of the Renewables Portfolio Standard (RPS), which currently requires California's electricity mix to be 60 percent renewable by 2030, with a goal for 100 percent renewable and zero-carbon by 2045.

Signed by Governor Brown in September 2016, AB 1110 (Ting, Chapter 656, Statues of 2016), requires that retail suppliers of electricity additionally disclose to consumers the greenhouse gas emissions intensity of the supplier's electric service products. This modification to the program will improve transparency for consumers and strengthen the Power Source Disclosure program's relevance to California's climate change activities. The Energy Commission has begun rulemaking procedures to update the Power Source Disclosure regulations to comply with AB 1110. Greenhouse gas emissions data will be included in the Power Content Label beginning in 2020.

For more information about the Power Content Label, including how this program relates to California's Renewables Portfolio Standard, please see About the Power Content Label. Retail suppliers, please see our Background on Power Source Disclosure and the Power Content Label for more information on reporting and disclosure requirements.

Annual Reporting Templates & Due Dates
Reporting Requirement Due Date Template
PSD Annual Report: Retail Suppliers June 3, 2019 PSD Annual Report Template
(Schedules 1 & 2)
PSD Annual Report: Power Pool Reporting June 3, 2019 PSD Annual Report Template
(Schedules 3 & 4)
Optional Worksheet for Multiple Product Filers Optional Product Share Calculator
Annual Power Content Label (PCL) On or before the end of the first complete billing cycle for the third quarter of the year Template will be posted in July 2019
Independent Audit of the Annual Report & PCL October 1st, 2019 No template requirement; see PSD Amended Regulation

For more information about this program please contact:

California Energy Commission
1516 Ninth Street, MS-45
Sacramento, CA 95814
Phone: 916-653-6222
E-mail: PSDprogram@energy.ca.gov


Consumer Information

Retailer Information

AB 1110 Rulemaking


Power Source Disclosure List Serve
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