5a13be122b
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
99 lines
7.8 KiB
Markdown
99 lines
7.8 KiB
Markdown
---
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type: "Bill"
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title: "Solar thermal systems."
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description: "The Solar Water Heating and Efficiency Act of 2007, until August 1, 2018, requires the Public Utilities Commission, if it determines that a solar water heating program is cost effective for ratepayers and in the public interest, to implement a program to promote the installation of 200,000 solar water heating systems in homes, businesses, and buildings or facilities of eligible customer classes receiving natural gas service throughout the state by 2017. The act establishes the maximum funding for the program, for the collective service territories of all gas corporations, at $250,000,000. The act requires the governing body of each publicly owned utility providing gas service to retail end-use customers to adopt, implement, and finance a solar water heating system incentive program to encourage the installation of 200,000 solar water heating systems by 2017."
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jurisdiction: "us/states/ca"
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legislature: "California Legislature"
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session: "20172018"
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identifier: "AB 797"
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citation: "California AB 797 (20172018)"
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classification: ["bill"]
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subjects: ["Solar thermal systems."]
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status: "enacted"
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primary_sponsors: ["Irwin"]
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version_count: 8
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action_count: 28
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vote_count: 8
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first_action: "2017-02-15"
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last_action: "2017-10-04"
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source: "openstates"
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source_identifier: "ocd-bill/291ab189-be79-4384-8454-2e4ff2888b7f"
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source_url: "http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB797"
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source_hash: "f040395b78199704afa9dc9de5163d405f770789d2fa91cc875ebd0ee0d94f45"
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vintage: "2026-07-01"
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source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
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retrieved_at: "2026-07-06"
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confidence: "reported"
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tags: ["legislation", "bill", "us-ca"]
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---
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# California AB 797 (20172018) — Solar thermal systems.
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The Solar Water Heating and Efficiency Act of 2007, until August 1, 2018, requires the Public Utilities Commission, if it determines that a solar water heating program is cost effective for ratepayers and in the public interest, to implement a program to promote the installation of 200,000 solar water heating systems in homes, businesses, and buildings or facilities of eligible customer classes receiving natural gas service throughout the state by 2017. The act establishes the maximum funding for the program, for the collective service territories of all gas corporations, at $250,000,000. The act requires the governing body of each publicly owned utility providing gas service to retail end-use customers to adopt, implement, and finance a solar water heating system incentive program to encourage the installation of 200,000 solar water heating systems by 2017.
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## Version chain
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The bill's text revisions, in order — the diff chain from filing to enrollment.
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1. **02/15/17 - Introduced** (filed) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB797&version=20170AB79799INT)
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2. **03/22/17 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB797&version=20170AB79798AMD)
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3. **04/26/17 - Amended Assembly** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB797&version=20170AB79797AMD)
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4. **06/08/17 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB797&version=20170AB79796AMD)
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5. **09/08/17 - Amended Senate** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB797&version=20170AB79795AMD)
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6. **10/04/17 - Chaptered** (committee substitute) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB797&version=20170AB79793CHP)
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7. **AB797** (committee substitute) — [source](http://leginfo.legislature.ca.gov/faces/billNavClient.xhtml?bill_id=201720180AB797)
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8. **09/15/17 - Enrolled** (enrolled) — [source](https://leginfo.legislature.ca.gov/faces/billPdf.xhtml?bill_id=201720180AB797&version=20170AB79794ENR)
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## Votes
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- Do pass as amended and be re-referred to the Committee on [Appropriations] — **9–5** (pass) · lower
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- AB 797 IRWIN Assembly Third Reading — **54–24** (pass) · lower
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- Placed on suspense file — **7–0** (pass) · upper
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- 3rd Reading AB797 Irwin By Stern — **30–10** (pass) · upper
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- AB 797 IRWIN Concurrence in Senate Amendments — **54–24** (pass) · lower
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- Do pass — **5–2** (pass) · upper
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- Do pass as amended, but first amend, and re-refer to the Committee on [Appropriations] — **9–1** (pass) · upper
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- Do pass. — **12–5** (pass) · lower
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## Sponsors
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- Irwin — primary (person)
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## Timeline
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The legislative action history — every referral, reading, and vote.
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- **2017-02-15** Read first time. To print. `reading-1`
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- **2017-02-16** From printer. May be heard in committee March 18.
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- **2017-03-02** Referred to Com. on U. & E. `referral-committee`
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- **2017-03-22** From committee chair, with author's amendments: Amend, and re-refer to Com. on U. & E. Read second time and amended. `amendment-introduction, amendment-passage, reading-2, reading-1`
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- **2017-03-23** Re-referred to Com. on U. & E. `referral-committee`
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- **2017-03-29** In committee: Hearing postponed by committee.
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- **2017-04-25** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 9. Noes 5.) (April 19). `amendment-passage, committee-passage, amendment-introduction`
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- **2017-04-26** Read second time and amended. `reading-1, amendment-passage, reading-2`
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- **2017-04-27** Re-referred to Com. on APPR. `referral-committee`
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- **2017-05-10** From committee: Do pass. (Ayes 12. Noes 5.) (May 10). `committee-passage-favorable, committee-passage`
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- **2017-05-11** Read second time. Ordered to third reading. `reading-2, reading-1`
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- **2017-05-15** Read third time. Passed. Ordered to the Senate. (Ayes 54. Noes 24. Page 1540.) `reading-3, passage, reading-1`
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- **2017-05-15** In Senate. Read first time. To Com. on RLS. for assignment. `reading-1`
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- **2017-05-24** Referred to Com. on E., U. & C. `referral-committee`
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- **2017-06-07** From committee: Amend, and do pass as amended and re-refer to Com. on APPR. (Ayes 9. Noes 1.) (June 6). `amendment-passage, committee-passage, amendment-introduction`
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- **2017-06-08** Read second time and amended. Re-referred to Com. on APPR. `amendment-passage, reading-2, referral-committee, reading-1`
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- **2017-06-26** In committee: Referred to suspense file. `referral-committee`
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- **2017-09-01** From committee: Do pass. (Ayes 5. Noes 2.) (September 1). `committee-passage-favorable, committee-passage`
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- **2017-09-05** Read second time. Ordered to third reading. `reading-2, reading-1`
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- **2017-09-08** Read third time and amended. Ordered to second reading. `amendment-passage, reading-3, reading-1`
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- **2017-09-11** Read second time. Ordered to third reading. `reading-2, reading-1`
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- **2017-09-12** Read third time. Passed. Ordered to the Assembly. (Ayes 30. Noes 10. Page 2756.). `reading-3, passage, reading-1`
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- **2017-09-13** In Assembly. Concurrence in Senate amendments pending. May be considered on or after September 15 pursuant to Assembly Rule 77.
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- **2017-09-13** Assembly Rule 77(a) suspended. (Ayes 54. Noes 25. Page 3255.)
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- **2017-09-14** Senate amendments concurred in. To Engrossing and Enrolling. (Ayes 54. Noes 24. Page 3375.). `committee-passage-favorable, amendment-passage`
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- **2017-09-25** Enrolled and presented to the Governor at 12 p.m.
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- **2017-10-04** Approved by the Governor. `executive-signature`
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- **2017-10-04** Chaptered by Secretary of State - Chapter 473, Statutes of 2017.
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## Source
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OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/291ab189-be79-4384-8454-2e4ff2888b7f`. Confidence: reported (aggregated from official California legislature records).
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