republic-os/legislation/us/states/ca/20092010/ab-510.md

---
type: "Bill"
title: "Net energy metering."
description: "Existing law relative to private energy producers requires every electric utility, as defined, to make available to an eligible customer‑generator, as defined, a standard contract or tariff for net energy metering on a first-come-first-served basis until the time that the total rated generating capacity used by eligible customer‑generators exceeds 2.5% of the electric utility's aggregate customer peak demand."
jurisdiction: "us/states/ca"
legislature: "California Legislature"
session: "20092010"
identifier: "AB 510"
citation: "California AB 510 (20092010)"
classification: ["bill"]
subjects: ["Net energy metering."]
status: "enacted"
primary_sponsors: ["Skinner"]
version_count: 6
action_count: 25
vote_count: 7
first_action: "2009-02-24"
last_action: "2010-02-26"
source: "openstates"
source_identifier: "ocd-bill/5d1020bc-a807-4a31-8f62-ac3b6d9d62c1"
source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200920100AB510"
source_hash: "e04faf209e68e15824bceead0bb0a6d96d6e3ae99ccda75533502a812bded9cf"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-ca"]
---

# California AB 510 (20092010) — Net energy metering.

Existing law relative to private energy producers requires every electric utility, as defined, to make available to an eligible customer‑generator, as defined, a standard contract or tariff for net energy metering on a first-come-first-served basis until the time that the total rated generating capacity used by eligible customer‑generators exceeds 2.5% of the electric utility's aggregate customer peak demand.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **02/24/09 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200920100AB510&version=20090AB51099INT)
2. **01/26/10 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200920100AB510&version=20090AB51097AMD)
3. **02/26/10 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200920100AB510&version=20090AB51095CHP)
4. **04/02/09 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200920100AB510&version=20090AB51098AMD)
5. **AB510** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=200920100AB510)
6. **02/18/10 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=200920100AB510&version=20090AB51096ENR)

## Votes

- Assembly 3rd Reading AB510 Skinner By Kehoe — **pass** (pass) · upper
- AB 510 EVANS Assembly Third Reading — **pass** (pass) · lower
- Do pass, but re-refer to the Committee on Appropriations. — **pass** (pass) · upper
- Do pass. — **pass** (pass) · lower
- Placed on Appropriations Suspense file. — **pass** (pass) · upper
- AB 510 SKINNER Concurrence in Senate Amendments — **pass** (pass) · lower
- Do pass and be re-referred to the Committee on Appropriations. — **pass** (pass) · lower

## Sponsors

- Skinner — primary (person)
- Kehoe — coauthor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2009-02-24** Read first time. To print. `reading-1`
- **2009-02-25** From printer. May be heard in committee March 27.
- **2009-03-12** Referred to Com. on HUM. S. `referral-committee`
- **2009-04-02** From committee chair, with author's amendments: Amend, and re-refer to Com. on HUM. S. Read second time and amended. `amendment-introduction, reading-2, amendment-passage, reading-1`
- **2009-04-13** Re-referred to Com. on HUM. S. `referral-committee`
- **2009-04-15** From committee: Do pass, and re-refer to Com. on APPR. Re-referred. (Ayes 4. Noes 2.) (April 14). `committee-passage-favorable, committee-passage`
- **2009-04-29** In committee: Set, first hearing. Referred to APPR. suspense file. `referral-committee`
- **2009-05-29** From committee: Do pass. (Ayes 12. Noes 5.) (May 28). `committee-passage-favorable, committee-passage`
- **2009-05-29** Read second time. To third reading. `reading-2, reading-1`
- **2009-06-01** Read third time, passed, and to Senate. (Ayes 50. Noes 28. Page 1870.) `reading-3, passage, reading-1`
- **2009-06-02** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
- **2009-06-11** Referred to Com. on HUMAN S. `referral-committee`
- **2009-06-24** From committee: Do pass, and re-refer to Com. on APPR. Re-referred. (Ayes 3. Noes 2.) (June 23). `committee-passage-favorable, committee-passage`
- **2009-07-13** In committee: Placed on Appropriations suspense file.
- **2009-08-27** In committee: Held under submission.
- **2010-01-26** From committee chair, with author's amendments: Amend, and re-refer to committee. Read second time, amended, and re-referred to Com. on APPR. `amendment-introduction, reading-2, amendment-passage, referral-committee, reading-1`
- **2010-01-27** Re-referred to Com. on RLS. `referral-committee`
- **2010-02-04** Withdrawn from committee. Ordered placed on second reading file.
- **2010-02-08** Read second time. To third reading. `reading-2, reading-1`
- **2010-02-11** Read third time, passed, and to Assembly. (Ayes 27. Noes 5. Page 2797.) `reading-3, passage, reading-1`
- **2010-02-11** In Assembly. Concurrence in Senate amendments pending. May be considered on or after February 13 pursuant to Assembly Rule 77.
- **2010-02-18** Senate amendments concurred in. To enrollment. (Ayes 61. Noes 4. Page 4072.) `amendment-passage, committee-passage-favorable`
- **2010-02-19** Enrolled and to the Governor at 3:15 p.m.
- **2010-02-26** Approved by the Governor. `executive-signature`
- **2010-02-26** Chaptered by Secretary of State - Chapter 6, Statutes of 2010.

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/5d1020bc-a807-4a31-8f62-ac3b6d9d62c1`. Confidence: reported (aggregated from official California legislature records).