10-KAccepted Feb 25, 5:03 PM ET

NORTHERN STATES POWER CO /WI/ 10-K

NORTHERN STATES POWER CO /WI/

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Accepted (ET)

5:03 PM

Feb 25, 2026

Filed

Feb 25, 2026

Documents

Size

14.7 MB

Summary

Summary not available

This filing does not have a written summary yet. You can still open the original filing and its exhibits.

Filing details

Company: NORTHERN STATES POWER CO /WI/
CIK: 0000072909
Form: 10-K
Accepted: Feb 25, 5:03 PM ET
Filed: Feb 25, 2026
Size: 14.7 MB
Accession: 0000072909-26-000003

Documents · 94

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10-K
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