NorthWestern Energy : 2025 NW Corp - Electric Annual Report

NWE

Published on 05/07/2026 at 04:17 pm EDT

YEAR ENDING 2025

ANNUAL REPORT

OF

NorthWestern Energy

ELECTRIC UTILITY

Docket 2026.01.001

TO THE

PUBLIC SERVICE COMMISSION STATE OF MONTANA

1701 PROSPECT AVENUE

P.O. BOX 202601

HELENA, MT 59620-2601

Table of Contents

Description Schedule

Instructions

Identification 1

Board of Directors 2

Officers 3

Corporate Structure 4

Corporate Allocations 5

Affiliate Transactions - To the Utility 6

Affiliate Transactions - By the Utility 7

Montana Utility Income Statement 8

Montana Revenues 9

Montana Operation and Maintenance Expenses 10

Montana Taxes Other Than Income 11

Payments for Services 12

Political Action Committees/Political Contributions 13

Pension Costs 14

Other Post Employment Benefits 15

Top Ten Montana Compensated Employees 16

Top Five Corporate Compensated Employees 17

Balance Sheet 18

vii

continued on next page

Description

Schedule

Montana Plant in Service

19

Montana Depreciation Summary

20

Montana Materials and Supplies

21

Montana Regulatory Capital Structure

22

Statement of Cash Flows

23

Long Term Debt

24

Preferred Stock

25

Common Stock

26

Montana Earned Rate of Return

27

Montana Composite Statistics

28

Montana Customer Information

29

Montana Employee Counts

30

Montana Construction Budget

31

Peak and Energy

32

Sources and Disposition of Energy

33

Sources of Electric Supply

34

MT Conservation and Demand Side Management Programs

35

Electrical Universal Systems Benefits Programs

35a

MT Conservation and Demand Side Management Programs

35b

Montana Consumption and Revenues

36

viii

Sch. 1

IDENTIFICATION

1

2

Legal Name of Respondent:

NorthWestern Corporation

3

4

Name Under Which Respondent Does Business:

NorthWestern Energy

5

6

Date Utility Service First Offered in Montana:

Electricity - Dec 12, 1912

7

Natural Gas - Jan 01, 1933

8

Propane - Oct 13, 1995

9

10

Person Responsible for Report:

Jeff B. Berzina

11

12

Telephone Number for Report Inquiries:

(406) 497-2759

13

14

Address for Correspondence Concerning Report:

11 East Park Street

15

Butte, MT 59701

16

17

18

If direct control over respondent is held by another entity, provide below the name,

address, means by which control is held and percent ownership of controlling

entity:

Respondent is a wholly-owned, direct subsidiary of NorthWestern Energy Group, Inc. At

December 31, 2025, NorthWestern Energy Group, Inc. owned 100% of the common stock

of respondent.

Schedule 1

Sch. 2

BOARD OF DIRECTORS

Director's Name & Address (City, State)

Remuneration

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

See NorthWestern Corporation's Annual Report FERC Form No. 1 page 105 for our Corporate Board of Directors.

Schedule 2

Disclaimer

Northwestern Energy Group Inc. published this content on May 07, 2026, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on May 07, 2026 at 20:16 UTC.