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AB-2389 • 2026

Property taxation: active solar energy systems: customer sited: extension.

Property taxation: active solar energy systems: customer sited: extension.

Education Energy Taxes
Active

The official status still shows this bill as active or still awaiting another formal step.

Sponsor
Irwin
Last action
Official status
Assembly - Appropriations
Effective date
Not listed

Plain English Breakdown

The official digest lists two conflicting size limits (2 megawatts and 10 kilowatts) without indicating which is correct; both are noted in the summary to reflect this uncertainty.

Extending Property Tax Exclusion for Customer-Sited Active Solar Energy Systems

AB-2389 extends the property tax exclusion for adding customer-sited active solar energy systems through January 1, 2031.

What This Bill Does

  • Extends the property tax exclusion for lien dates between January 1, 2027, and before January 1, 2031.
  • Applies to customer-sited active solar energy systems with a size of less than or equal to 10 kilowatts (note: source text also lists 2 megawatts).
  • Includes an exclusion for customer-sited active solar energy systems located on property owned by public entities.
  • Requires that tax savings from solar systems on public entity property be used to maintain the affordability of, or reduce the cost of, future lease agreements.
  • Limits the owner-builder exclusion to new buildings where the initial construction permit was issued before January 1, 2027.

Who It Names or Affects

  • Owners adding customer-sited active solar energy systems
  • Public entities such as schools or cities that install solar systems on their property
  • Owner-builders constructing new buildings with integrated solar systems before January 1, 2027

Terms To Know

Active solar energy system
A device defined by existing law that uses sunlight to generate electricity or heat water.
Customer-sited
Solar systems installed on the property of the customer who will use them, including public entities.
Lien date
The specific day when a tax bill is officially created for that year's taxes.

Limits and Unknowns

  • The state will not reimburse local agencies for property tax revenue lost due to this exclusion.
  • Reimbursement for other costs mandated by the bill depends on a determination by the Commission on State Mandates.
  • The official text contains conflicting size limits (2 megawatts vs. 10 kilowatts) that are unclear.

Bill History

  1. California Legislative Information

    Assembly - Appropriations

Official Summary Text

Property taxation: active solar energy systems: customer sited: extension.