1 6/12/2026 MLR Meeting
Board*
Energy Commission
2 Power Source
Disclosure
Power Content
Label
Published on website.
Final numbers.
Energy Generation
Energy Settlements
*CCR 20.2.5.5, §1394 –
Public agencies may either engage an auditor or submit an attestation. → Board voted to engage auditor starting in 2023, so no attestation needed.
Jun. 2026 Jul. 2026 Oct. 2026
3 rd-Party Audit*
Submission
Jan. 2025 Jan. 2026
Reviews
Dec. 2026
Power Content
Label
Emailed or mailed.
What is the Power Content Label Reporting Process?
Joint Rate Mailer
Emailed or mailed.
Draft numbers, PG&E comparison.
What is the Power Content Label?
→ A “nutrition label” for electricity.
• Published annually, based on the
Power Source Disclosure Report for
the prior calendar year’s electricity
generation from owned or contracted-for resources.
• Provides a detailed breakdown of the
sources of energy used to provide
electricity.
Submission is reviewed and approved by
the California Energy Commission.
Line Losses
2025 Changes to Power Source Disclosure Report
→ Account for energy dissipating over transmission and distribution lines. • California Code of Regulations, 20.2.5.5 (July 2025)
§1392 (a.8.A) – “A retail supplier’s transmission and distribution losses shall be determined by applying a loss factor to each specified resource and to unspecified power.” §1393 (b.2.B) – “retail suppliers shall report transmission and distribution losses associated with each procurement.”
• This change will capture the emissions associated with the fraction of electrons that escapes as heat into the environment as they travel across power lines, from a power plant to the customer.
Effective for 2026 submission for Calendar Year 2025 power content.
Line losses will impact Power Content Label.
Line Losses
2025 Changes to Power Source Disclosure Report
-6.6%
-4.4%
Out-of-State
In-State
• Losses are assigned to each specified resource by
location (in-state or out-of-state.)
• Additional specified procurement can cover some
losses…
• …but said procurement is also subject to line
losses.
→ Varies by resource location.
Line Losses
2025 Changes to Power Content Label
2025 Summary
Power Content Label Bright Choice Renewable
100 Total Retail Sales Total Loss-Adjusted Load
GHG Emissions Intensity 194 0 134 168
Biomass & Biogas 12% 0% 9% 8%
Geothermal 1% 0% 1% 1%
Eligible Hydroelectric 1% 0% 1% 1%
Solar 25% 61% 36% 34%
Wind 15% 39% 21% 20%
Total Renewables 54% 100% 68% 64%
Large Hydroelectric 36% 0% 25% 24%
Nuclear 9% 0% 6% 7%
Unspecified Power 1% 0% 1% 5%
→ increased ‘Unspecified Power’ and reduced RE/CF in total loss-adjusted load. 2025 Power Procurement