---
type: "Bill"
title: "Energy Conservation and Optimization Act of 2021 established."
description: "Energy Conservation and Optimization Act of 2021 established."
jurisdiction: "us/states/mn"
legislature: "Minnesota Legislature"
session: "2021-2022"
identifier: "HF 164"
citation: "Minnesota HF 164 (2021-2022)"
classification: ["bill"]
subjects: ["Energy", "Popular Names"]
status: "enacted"
primary_sponsors: ["Stephenson"]
version_count: 5
action_count: 52
vote_count: 0
first_action: "2021-01-19"
last_action: "2021-05-26"
source: "openstates"
source_identifier: "ocd-bill/91a8861d-d915-4975-a3ed-bc3de7b04f09"
source_url: "https://www.revisor.mn.gov/bills/bill.php?b=House&f=HF0164&ssn=0&y=2021"
source_hash: "fa65d4ecb5340c56da8e5e2134a27734fe0c27724eb6ec6359298e8064a4035f"
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-mn"]
---

# Minnesota HF 164 (2021-2022) — Energy Conservation and Optimization Act of 2021 established.

## Version chain

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

1. **1st Engrossment** (committee substitute) — [source](https://www.revisor.mn.gov/bills/text.php?number=HF164&version=1&session=ls92&session_year=2021&session_number=0)
2. **1st Unofficial Engrossment** (committee substitute) — [source](https://www.revisor.mn.gov/bills/text.php?number=HF164&version=1&session=ls92&session_year=2021&session_number=0&type=ue)
3. **2nd Engrossment** (committee substitute) — [source](https://www.revisor.mn.gov/bills/text.php?number=HF164&version=2&session=ls92&session_year=2021&session_number=0)
4. **CCR-HF0164** (committee substitute) — [source](https://www.revisor.mn.gov/bills/text.php?number=HF164&version=0&session=ls92&session_year=2021&session_number=0&type=ccr)
5. **Introduction** (committee substitute) — [source](https://www.revisor.mn.gov/bills/text.php?number=HF164&version=0&session=ls92&session_year=2021&session_number=0)

## Sponsors

- Stephenson — primary (person)
- Acomb — cosponsor (person)
- Bahner — cosponsor (person)
- Bennett — cosponsor (person)
- Bierman — cosponsor (person)
- Boe — cosponsor (person)
- Christensen — cosponsor (person)
- Davids — cosponsor (person)
- Ecklund — cosponsor (person)
- Feist — cosponsor (person)
- Freiberg — cosponsor (person)
- Garofalo — cosponsor (person)
- Her — cosponsor (person)
- Hollins — cosponsor (person)
- Lillie — cosponsor (person)
- Lippert — cosponsor (person)
- Long — cosponsor (person)
- Moller — cosponsor (person)
- Rarick — cosponsor (person)
- Urdahl — cosponsor (person)
- Xiong, J. — cosponsor (person)

## Timeline

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

- **2021-01-19** Introduction and first reading, referred to Climate and Energy Finance and Policy `introduction, referral-committee`
- **2021-01-21** Authors added Garofalo, Acomb, Long, and Ecklund
- **2021-01-28** Authors added Davids, Bennett, Bierman, Christensen, and Lillie
- **2021-02-01** Committee report, to adopt as amended `committee-passage`
- **2021-02-01** Second reading `reading-2`
- **2021-02-01** Author added Urdahl
- **2021-02-04** Authors added Lippert and Bahner
- **2021-02-10** Author added Boe
- **2021-02-18** Author added Feist
- **2021-03-09** Author added Xiong, J.
- **2021-03-10** Author added Hollins
- **2021-03-15** Author added Moller
- **2021-04-06** Authors added Her and Freiberg
- **2021-04-09** House rule 1.21, placed on Calendar for the Day Monday, April 12, 2021
- **2021-04-12** Author added Dettmer
- **2021-04-12** Amendments offered `amendment-introduction`
- **2021-04-12** Point of order raised, ruled well taken
- **2021-04-12** Third reading `reading-3`
- **2021-04-12** Bill was passed `passage`
- **2021-04-13** Author stricken Dettmer
- **2021-05-06** Returned from Senate with amendment
- **2021-05-06** House refuses to concur, conference committee of 3 requested
- **2021-05-06** House conferees Stephenson, Long, Rasmusson
- **2021-05-10** Senate accedes, conference committee of 3 be appointed
- **2021-05-10** Senate conferees Rarick, Osmek and Frentz
- **2021-05-15** Conference committee report, delete everything
- **2021-05-15** House adopted conference committee report
- **2021-05-15** Third reading as amended by Conference `reading-3`
- **2021-05-15** Bill was repassed as amended by Conference
- **2021-05-17** Returned from Senate
- **2021-05-21** Presented to Governor 05/21/2021 `executive-receipt`
- **2021-05-25** Governor approval 05/25/2021 `executive-signature`
- **2021-05-25** Secretary of State, Filed 05/25/2021
- **2021-04-13** Received from House `introduction`
- **2021-04-13** Introduction and first reading `introduction`
- **2021-04-13** Referred to Rules and Administration for comparison with SF227 now on General Orders `referral-committee`
- **2021-04-14** Comm report: Rule 45-amend, subst. General Orders SF227
- **2021-04-14** Second reading `reading-2`
- **2021-05-06** Special Order: Amended
- **2021-05-06** Third reading Passed `passage`
- **2021-05-10** House not concur, conference committee of 3 requested
- **2021-05-10** House conferees Stephenson; Long; Rasmusson
- **2021-05-10** Senate accedes, CC of 3 be appointed
- **2021-05-10** Senate conferees Rarick; Osmek; Frentz
- **2021-05-17** House adopted HCC report and repassed bill
- **2021-05-17** Conference committee report, delete everything
- **2021-05-17** Senate adopted CC report and repassed bill
- **2021-05-17** Third reading `reading-3`
- **2021-05-21** Presentment date 05/21/2021
- **2021-05-25** Governor's action Approval 05/25/2021 `executive-signature`
- **2021-05-25** Secretary of State Chapter 29 05/25/2021
- **2021-05-26** Effective date Sec. 1-11, 13-19 05/26/21; Sec. 12 08/01/21

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/91a8861d-d915-4975-a3ed-bc3de7b04f09`. Confidence: reported (aggregated from official Minnesota legislature records).