republic-os/legislation/us/states/co/2021a/sb-21-020.md

---
type: "Bill"
title: "Energy Equipment And Facility Property Tax Valuation"
description: "The act ensures that clean energy resources and energy storage systems used to store electricity are assessed for valuation for the purpose of property taxation in a similar manner to renewable energy facility property used to generate and deliver electricity. The act also modifies the income approach for certain renewable energy facilities by extending the\"tax factor\" from a 20-year period to a 30-year period. It also specifies that after the 20- or 30-year period, as applicable, a tax factor is not applied and the taxable value shall not exceed the depreciated value floor calculated using the cost basis method. The administrator is also required to utilize the income approach for solar energy facilities that generate 2 megawatts or less, so that similar facilities will be valued in the same manner.(Note: This summary applies to this bill as enacted.)"
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2021A"
identifier: "SB 21-020"
citation: "Colorado SB 21-020 (2021A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Alex Valdez", "Chris Hansen", "Dennis Hisey", "Matt Soper"]
version_count: 8
action_count: 15
vote_count: 3
first_action: "2021-02-16T07:00:00+00:00"
last_action: "2021-04-22T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/11b3d819-cbca-4a7e-aa37-d4fe20efed59"
source_url: "http://leg.colorado.gov/bills/sb21-020"
source_hash: "f71b0e1b282dff728beab26b5ea9b6bd1dad5684dbedbf081ffbd939c8e8d023"
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-co"]
---

# Colorado SB 21-020 (2021A) — Energy Equipment And Facility Property Tax Valuation

The act ensures that clean energy resources and energy storage systems used to store electricity are assessed for valuation for the purpose of property taxation in a similar manner to renewable energy facility property used to generate and deliver electricity. The act also modifies the income approach for certain renewable energy facilities by extending the"tax factor" from a 20-year period to a 30-year period. It also specifies that after the 20- or 30-year period, as applicable, a tax factor is not applied and the taxable value shall not exceed the depreciated value floor calculated using the cost basis method. The administrator is also required to utilize the income approach for solar energy facilities that generate 2 megawatts or less, so that similar facilities will be valued in the same manner.(Note: This summary applies to this bill as enacted.)

## Version chain

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

1. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_sb020_h_fin_001.pdf)
2. **Engrossed (03/01/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_020_eng.pdf)
3. **Final Act (04/13/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_020_enr.pdf)
4. **Introduced (02/16/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_020_01.pdf)
5. **Reengrossed (03/02/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_020_rn2.pdf)
6. **Rerevised (04/09/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_020_rer.pdf)
7. **Revised (04/08/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2021A/bills/2021a_020_rev.pdf)
8. **Signed Act (04/22/2021)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2021a_020_signed.pdf)

## Votes

- BILL — **42–21** (pass) · lower
- BILL — **29–4** (pass) · upper
- BILL — **31–2** (pass) · upper

## Sponsors

- Alex Valdez — primary (person)
- Chris Hansen — primary (person)
- Dennis Hisey — primary (person)
- Matt Soper — primary (person)

## Timeline

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

- **2021-04-22T06:00:00+00:00** Governor Signed `executive-signature`
- **2021-04-14T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2021-04-13T06:00:00+00:00** Signed by the Speaker of the House
- **2021-04-13T06:00:00+00:00** Signed by the President of the Senate
- **2021-04-09T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
- **2021-04-08T06:00:00+00:00** House Second Reading Passed - No Amendments `reading-2`
- **2021-04-05T06:00:00+00:00** House Committee on Finance Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2021-03-24T06:00:00+00:00** House Committee on Energy & Environment Refer Unamended to Finance `referral-committee`
- **2021-03-04T07:00:00+00:00** Introduced In House - Assigned to Energy & Environment + Finance `introduction`
- **2021-03-02T07:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2021-03-02T07:00:00+00:00** Senate Third Reading Reconsidered - No Amendments
- **2021-03-02T07:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
- **2021-03-01T07:00:00+00:00** Senate Second Reading Passed - No Amendments `reading-2`
- **2021-02-24T07:00:00+00:00** Senate Committee on Finance Refer Unamended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2021-02-16T07:00:00+00:00** Introduced In Senate - Assigned to Finance `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/11b3d819-cbca-4a7e-aa37-d4fe20efed59`. Confidence: reported (aggregated from official Colorado legislature records).