SIERRA PACIFIC POWER CO SEC filing history

203 loaded recent SEC filings. No local filings are indexed for this CIK yet. This fallback shows up to 1,000 recent submissions, not the complete SEC archive.

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SEC filing history

Showing 1–25 of 39 matching filings.

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424B5 File 333-285816

424B5

Filing date: 06 Mar 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

FWP File 333-285816

FWP

Filing date: 05 Mar 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B5 File 333-285816

424B5

Filing date: 05 Mar 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B5 File 333-285816

424B5

Filing date: 08 Sep 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

FWP File 333-285816

FWP

Filing date: 04 Sep 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B5 File 333-285816

424B5

Filing date: 04 Sep 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

EFFECT File 333-285816

EFFECT filing

Filing date: 01 Apr 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 27 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

UPLOAD File 333-285816

UPLOAD filing

Filing date: 21 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-3 File 333-285816

S-3

Filing date: 14 Mar 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

EFFECT File 333-278570

EFFECT filing

Filing date: 06 May 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B3 File 333-278570

424B3

Filing date: 06 May 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 02 May 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

UPLOAD File 333-278570

UPLOAD filing

Filing date: 17 Apr 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 09 Apr 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-4 File 333-278570

S-4

Filing date: 09 Apr 2024
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

EFFECT File 333-213060

EFFECT filing

Filing date: 14 Sep 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B3 File 333-213060

424B3

Filing date: 14 Sep 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 12 Sep 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

CORRESP

CORRESP filing

Filing date: 31 Aug 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-4 File 333-213060

S-4

Filing date: 10 Aug 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

IRANNOTICE File 000-00508

SPPC IRANNOTICE 5.6.16

Filing date: 06 May 2016
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-3ASR File 333-190869-01

S-3ASR

Filing date: 28 Aug 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

DEFA14A File 000-00508

COMBO FILING

Filing date: 19 Aug 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B2 File 333-168984-01

424B2

Filing date: 14 Aug 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing