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NG24-005 - In the Matter of the Application of NorthWestern Energy Public Service Corporation dba NorthWestern Energy for Authority to Increase Rates for Natural Gas Utility Service in South Dakota
Date Filed: 06/21/24 ♦ Intervention Date: 08/19/24
Date of Notice of Filing: 06/27/24 ♦ Docket Closed: 12/19/24
Date of Notice of Filing: 06/27/24 ♦ Docket Closed: 12/19/24
Agendas:
July 2, 2024, Agenda of Commission Meeting
December 17, 2024, Agenda of Commission Meeting
Minutes:
Minutes of the July 2, 2024, Commission Meeting
Natural Gas Rate Increase Request Information Guide
Orders:- 07/08/24 - Order Assessing Filing Fee; Order Suspending Operation of Proposed Rates; Order Authorizing Executive Director to Enter into Consulting Contracts
- 12/19/24 - Order Granting Joint Motion for Approval of Settlement Stipulation and Adopting Settlement Stipulation
- 06/21/24 - NorthWestern Energy's Letter of Transmittal
- Volume 1 Contents
- Notice of Proposed Changes of Rates and Charges
- Attestation by the Authorized Accounting Agent
- Report of Tariff Schedule Change
- Clean Tariff Pages
- Comparison of Sales, Services, and Revenues
- Statement A ‐ Balance Sheet
- Statement B ‐ Income Statement
- Statement C ‐ Retained Earnings
- Statement D ‐ Cost of Plant
- Schedule D‐1 ‐ Detailed Plant Accounts
- Schedule D‐2 ‐ Plant Addition and Retirement for Test Period
- Schedule D‐3 ‐ Working Papers Showing Plant Accounts on Average Basis for Test Period
- Schedule D‐4 ‐ Plant Account Working Papers for Previous Years
- Schedule D‐5 ‐ Working Papers on Capitalizing Interest and Other Overheads During Construction
- Schedule D‐6 ‐ Changes in Intangible Plant Working Papers
- Schedule D‐7 ‐ Working Papers on Plant in Service Not Used and Useful
- Schedule D‐8 ‐ Property Records Working Papers
- Schedule D‐9 ‐ Working Papers for Plant Acquired for Which Regulatory Approval Has Not Been Obtained
- Statement E ‐ Accumulated Depreciation
- Statement F ‐ Working Capital
- Statement G ‐ Rate of Return, Debt Capital, Preferred Stock Capital, Common Stock Capital
- Statement H ‐ Operating and Maintenance Expenses
- Schedule H‐1 ‐ Adjustments to Operating and Maintenance Expenses
- Schedule H‐2 ‐ Cost of Purchased Gas
- Schedule H‐3 ‐ Working Papers for Listed Expense Accounts
- Schedule H‐3a ‐ List of All Claimed Advertising Expenses
- Schedule H‐4 ‐ Working Papers for Interdepartmental Transactions
- Schedule H‐5 ‐ Labor, Payroll Taxes and 401K Adjustment
- Schedule H‐6 ‐ Carrying Charges Adjustment
- Schedule H‐7 ‐ Bad Debt Adjustment
- Schedule H‐8 ‐ Aircraft Adjustment
- Schedule H‐9 ‐ Rate Case Expense
- Schedule H‐10 ‐ Incentive Adjustments
- Schedule H‐11 ‐ Claims Adjustment
- Schedule H‐12 ‐ Interest Synchronization
- Schedule H‐13 ‐ Non‐Sufficient Funds Adjustment (Submitted 06/24/24)
- Schedule H‐14 ‐ Postage Adjustment (Submitted 06/24/24)
- Statement I ‐ Operating Revenues
- Statement J ‐ Depreciation Expense
- Statement K ‐ Income Taxes
- Schedule K‐1 ‐ Working Papers for Federal Income Taxes
- Schedule K‐2 ‐ Differences in Book and Tax Depreciation
- Schedule K‐3 ‐ Working Papers for Consolidated Federal Income Tax
- Schedule K‐4 ‐ Working Papers for An Allowance for Current Tax Greater Than Tax Calculated at Consolidated Rate
- Schedule K‐5 ‐ Working Papers for Claimed Allowances for State Income Taxes
- Statement L ‐ Other Taxes
- Statement M ‐ Overall Cost of Service
- Statement N ‐ Allocated Cost of Service (Per Books & Adjusted)
- Statement O ‐ Comparison of Cost of Service
- Statement P ‐ Fuel Cost Adjustment Factor
- Statement P ‐ Fuel Cost Adjustment Factor Confidential (not available to the public)
- Statement Q ‐ Description of Utility Operations
- Statement R ‐ Purchases from Affiliated Companies
- Testimony
- Brian B. Bird Direct Testimony
- Emilie T. Ng Direct Testimony
- Adrien M. McKenzie, CFA, Direct Testimony
- Exhibit AAM-1 – Qualifications of Adrien M. McKenzie
- Exhibit AAM-2 – Summary of Results
- Exhibit AAM-3 – Regulatory Mechanisms
- Exhibit AAM-4 – Capital Structure
- Exhibit AAM-5 – DCF Model – Gas Group
- Exhibit AAM-6 – BR + SV Growth Rate
- Exhibit AAM-7 – CAPM
- Exhibit AAM-8 – Empirical CAPM
- Exhibit AAM-9 – Utility Risk Premium
- Exhibit AAM-10 – Expected Earnings Approach
- Exhibit AAM-11 – DCF Model – Non-Utility Group
- Jeffrey B. Berzina Direct Testimony
- Aaron J. Borkman Direct Testimony
- John J. Spanos Direct Testimony
- Jeffrey J. Decker Direct Testimony
- Exhibit JJD-1 – South Dakota Heating Degree Days
- Exhibit JJD-2 – Management Fee Calculation Confidential (Not Available to the Public)
- Exhibit JJD-3 – Contract with Deviation Revenue Confidential (Not Available to the Public)
- Exhibit JJD-4 – Rate 87 Milbank Demand Rate Confidential (Not Available to the Public)
- Exhibit JJD-5 – Released Capacity Surcharge Confidential (Not Available to the Public)
- Bradley S. Wenande Direct Testimony
- 08/28/24 - Staff’s First Set of Data Requests to NorthWestern Energy Certificate of Service
- 09/17/24 - Staff’s Second Set of Data Requests to NorthWestern Energy Certificate of Service
- 10/04/24 - Staff’s Third Set of Data Requests to NorthWestern Energy Certificate of Service
- 10/22/24 - Staff’s Fourth Set of Data Requests to NorthWestern Energy Certificate of Service
- 12/04/24 - NorthWestern Energy Public Service Corporation dba NorthWestern Energy and PUC Staff's Joint Motion for Approval of Settlement Stipulation
- 12/04/24 - PUC Staff Memorandum Supporting Settlement Stipulation
- PUC Staff Memorandum Supporting Settlement Stipulation Confidential (not available to the public)
- Attachment A - Summary of Revenue Requirement Issues
- Revenue Requirement
- Exhibit__(PJS-1) Schedule 1 - SD Gas Revenue Requirement
- Exhibit__(PJS-1) Schedule 2 - SD Gas Operating Income Statement Summary
- Exhibit__(PJS-1) Schedule 3 - SD Gas Operating Income Statement with Known and Measurable Adjustments
- Exhibit__(PJS-2) Schedule 1 - SD Gas Rate Base Summary
- Exhibit__(PJS-2) Schedule 2 - SD Gas Rate Base with Known and Measurable Adjustments
- Exhibit__(PJS-3) - Interest Synchronization Adjustment
- Exhibit__(PJS-4) - Cash Working Capital Adjustment
- Exhibit__(PJS-5) - Advanced Tax Collections Adjustment
- Exhibit__(PJS-6) - Working Capital Updates Adjustment
- Exhibit__(PJS-7) – Bad Debt Expense Adjustment
- Exhibit__(BLC-1) Schedule 1 - Cost of Capital
- Exhibit__(BLC-1) Schedule 1 - Cost of Capital Confidential (not available to the public)
- Exhibit__(EJP-1) - Rate Case Expense Adjustment
- Exhibit__(EJP-2) – Normalizing Additions/Retirements During Test Year Adjustment
- Exhibit__(EJP-3) - General Advertising & Sponsorships Adjustment
- Exhibit__(EJP-4) – Economic Development Adjustment
- Exhibit__(EJP-5) – Claims & Property Adjustment
- Exhibit__(EJP-6) – Postage Adjustment
- Exhibit__(EJP-7) – NSF Change Adjustment
- Exhibit__(BAM-1) – Revenue Adjustments
- Exhibit__(BAM-2) – Book to Bill Adjustment
- Exhibit__(BAM-3) – MGP Revenue Adjustment
- Exhibit__(BAM-4) – Contracts with Deviations Rates and Revenue Adjustments
- Exhibit__(BAM-4) – Contracts with Deviations Rates and Revenues Adjustments Confidential (not available to the public)
- Exhibit__(BAM-5) – Depreciation for New Rates
- Exhibit__(JSG-1) – Settlement Depreciation Rates
- Rate Design
- Exhibit__(BAM-6) Schedule 1 - Revenue Increase Comparison
- Exhibit__(BAM-6) Schedule 2 – Revenue Increase by Customer Class
- Exhibit__(BAM-6) Schedule 3-1 - Residential Rate Schedules
- Exhibit__(BAM-6) Schedule 3-2 – Small Commercial Rate Schedules
- Exhibit__(BAM-6) Schedule 3-3 – Commercial & Industrial Rate Schedules
- Exhibit__(BAM-6) Schedule 3-4 – Transportation Rate Schedules
- Exhibit__(BAM-6) Schedule 4 - Residential & Small Commercial Service Bill Comparison
- 12/16/24 - Commissioner Fiegen's Letter Regarding Customer Notice
- 12/17/24 - NorthWestern Energy's Bill Insert Notice
- 12/19/24 - Docket Closed
