PUBLIC SERVICE CO OF COLORADO

Overview

• IndustryElectric & Other Services Combined²
• HeadquartersDenver, United States²
• Incorporated inCO³
• Business address3500 Blake Street, Denver, Co 80205³
• Filer categoryNon-accelerated filer³
• Legal formFor-Profit Corporation²
• LEI5BANEF6PGSEK0SNMQF44²
• StatusActive²
• LEI statusIssued and current²
• Registered addressC/O Corporation Service Company, 80120 Littleton, United States²
• Registered withBusiness Division of the Secretary of State’s office, 19871080074²

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PSCo is a wholly owned subsidiary of Xcel Energy Inc., and Xcel Energy’s website address is www.xcelenergy.com. Xcel Energy makes available, free of charge through its website, its annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K and all amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934 as soon as reasonably practicable after the reports are electronically filed with or furnished to the SEC. The SEC maintains an internet site that contains reports, proxy and information statements, and other information regarding issuers that file electronically at http://www.sec.gov. The information on Xcel Energy’s website is not a part of, or incorporated by reference in, this annual report on Form 10-K.⁴ From its latest annual report

Corporate structure

PUBLIC SERVICE CO OF COLORADO is part of a group headed by Xcel Energy. 21 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries listed in Exhibit 21 of annual reports filed with the SEC; subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

What it owns

What PUBLIC SERVICE CO OF COLORADO reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Property and equipment

Inventory

Properties, in its own words

Virtually all of the utility plant property of PSCo is subject to the lien of its first mortgage bond indenture.

Station, Location and Unit at Dec. 31, 2025 · Fuel · Installed · MW (a)

Item 2 of the 10-K filed Feb 25, 2026.⁴

Subsidiaries and ownership

Parent company (GLEIF)

• Xcel Energy²

Ownership links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); each one cites its LEI record.

Timeline

1. Aug 20, 20268-K Other events¹⁴
2. Aug 10, 20268-K Other events¹⁵
3. Jul 14, 20268-K Other events¹⁶
4. Jun 9, 20268-K Other events¹⁷
5. Jun 3, 20268-K Other events¹⁸
6. Mar 13, 20268-K Other events¹⁹
7. Jan 2, 20268-K Other events²⁰
8. Nov 24, 20258-K Other events²¹
9. Sep 24, 20258-K Other events²²
10. Aug 7, 20258-K Other events²³
11. Mar 20, 20258-K Other events²⁴
12. Oct 17, 20248-K Other events²⁵
13. Feb 25, 2020Parent Directly consolidated by Xcel Energy²
14. Sep 3, 1924Founded PUBLIC SERVICE CO OF COLORADO is founded²

Filings

72 filings to the SEC since October 2021: 5 annual reports, 15 quarterly reports, 31 major events, 21 other. The latest 20:

1. Aug 20, 20268-K EDGAR
2. Aug 10, 20268-K EDGAR
3. Aug 4, 2026424B2 EDGAR
4. Aug 3, 2026FWP EDGAR
5. Aug 3, 2026424B5 EDGAR
6. Jul 30, 202610-Q EDGAR
7. Jul 14, 20268-K EDGAR
8. Jun 9, 20268-K EDGAR
9. Jun 3, 20268-K EDGAR
10. Apr 30, 202610-Q EDGAR
11. Mar 13, 20268-K EDGAR
12. Mar 11, 2026424B2 EDGAR
13. Mar 10, 2026FWP EDGAR
14. Mar 10, 2026424B5 EDGAR
15. Feb 25, 202610-K EDGAR
16. Jan 2, 20268-K EDGAR
17. Nov 24, 20258-K EDGAR
18. Oct 30, 202510-Q EDGAR
19. Sep 24, 20258-K EDGAR
20. Aug 7, 20258-K EDGAR

Every filing from the last five years, summarized. The full record is on SEC EDGAR.

SEC filer profile

How PUBLIC SERVICE CO OF COLORADO is registered with the Securities and Exchange Commission, from its EDGAR record and the cover page of its latest annual report.

• Name on EDGARPUBLIC SERVICE CO OF COLORADO¹
• CIK0000081018
• Employer ID (EIN)84-0296600⁴
• Filer statusNon-accelerated filer not an emerging growth company; not a smaller reporting company; not a shell company⁴
• Incorporated inColorado⁴
• Fiscal year endsDecember 31¹
• Industry code (SIC)4931 Electric & Other Services Combined¹
• SEC reviewing officeOffice of Energy & Transportation, Division of Corporation Finance¹
• Business address3500 Blake Street, Denver, CO 80205¹
• Mailing addressP O Box 840 Ste 300, Denver, CO 80201¹
• Phone3035717511¹
• Shares outstanding100 as of Jul 30, 2026¹¹
• Public float$0 as of Jun 30, 2025⁹
• AuditorDELOITTE & TOUCHE LLP, Minneapolis, Minnesota PCAOB ID 34; no auditor attestation of internal control over financial reporting⁴
• On EDGAR sinceFeb 23, 1995¹
• Filings494 in all: 8-K (230), 10-Q (92), 10-K (30), 424B5 (28), 424B2 (26), FWP (23), U-6B-2 (11), 424B3 (9)¹
  All 26 form types

  10-Q/A (6), S-3 (6), S-3ASR (6), 8-K/A (4), U-3A-2 (3), U-3A-2/A (3), DEF 14A (2), EFFECT (2), S-3/A (2), S-4 (2), S-4/A (2), 10-K/A (1), 10-K405 (1), CT ORDER (1), S-3D (1), U-1 (1), U-1/A (1), UPLOAD (1)

• Latest filingsAnnual report (10-K) Feb 25, 2026
  Quarterly report (10-Q) Jul 30, 2026
  Proxy statement (DEF 14A) Apr 3, 1996
  Latest 8-K (8-K) Aug 20, 2026

Risk factors and legal proceedings

The risks PUBLIC SERVICE CO OF COLORADO names in Item 1A of its 10-K filed Feb 25, 2026: 28 risks under these headings, as written.⁴

• Risks Associated with Our Business
• Operational Risks
• Our natural gas and electric generation/transmission and distribution operations involve numerous risks that may result in accidents and other operating risks and costs.
• Our utility operations, resource adequacy and system reliability are subject to long-term planning and project risks.
• Our utility operations are highly dependent on suppliers to deliver components in accordance with short and long-term project schedules.
• We are subject to physical and financial risks associated with climate change and other weather, natural disaster and resource depletion impacts.
• Our utilities have significant risks associated with wildfires.
• We are subject to commodity risks and other risks associated with energy markets and energy production.
• Failure to attract and retain a qualified workforce could have an adverse effect on operations.
• Our operations use third-party contractors in addition to employees to perform periodic and ongoing work.
• Actions of our employees, directors, third-party contractors or suppliers could expose us to reputational risks.
• We are a wholly owned subsidiary of Xcel Energy Inc. Xcel Energy Inc. can exercise substantial control over our dividend policy and business and operations and may exercise that control in a manner that may be perceived to be adverse to our interests.

Legal proceedings

PSCo is involved in various litigation matters in the ordinary course of business. The assessment of whether a loss is probable or is a reasonable possibility, and whether the loss or a range of loss is estimable, often involves a series of complex judgments about future events. Management maintains accruals for losses probable of being incurred and subject to reasonable estimation.

Management is sometimes unable to estimate an amount or range of a reasonably possible loss in certain situations, including but not limited to, when (1) the damages sought are indeterminate, (2) the proceedings are in the early stages, or (3) the matters involve novel or unsettled legal theories. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution of such matters, including a possible eventual loss.

For current proceedings not specifically reported herein, management does not anticipate that the ultimate liabilities, if any, would have a material effect on PSCo’s consolidated financial statements. Legal fees are generally expensed as incurred.

See Note 10 to the consolidated financial statements, Item 1 and Item 7 for further information.

The opening of Item 3, Legal Proceedings.⁴