Is California CPUC Rulemaking R.25-08-004 in force?

Not yet. Under review since Aug 20, 2025.

Which products does California CPUC Rulemaking R.25-08-004 affect?

California CPUC Rulemaking R.25-08-004 affects Residential energy storage systems, Commercial and utility energy storage systems, and Interconnection devices.

California

CPUC Rulemaking R.25-08-004

PartialRead in the state’s own source. It stays partial until the passage is on file word for word.

What does California CPUC Rulemaking R.25-08-004 do? Studies refinements to Rule 21 interconnection rules for distributed energy resources at the large and small utilities. No new rule is shown yet.

Facts

Kind: Commission order
Status: Under review
Stage: Pending
Signed or decided: August 20, 2025
Topics: Interconnection
Products: Residential energy storage systems Commercial and utility energy storage systems Interconnection devices
Source: California Public Utilities Commission (opens in a new tab)

The state’s codes

The codes that reach each product this law names, with the edition California is on. Each links to the record.

For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use