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Service List

Agendas:
March 10, 2026, Agenda of Commission Meeting

Minutes:

Click For Comments and Responses

Electric Rate Increase Request Info Guide

• 03/13/26 - Order Suspending Operation of Proposed Rates; Order Assessing Filing Fee; Order Authorizing Executive Director to Enter Into Consulting Contracts

• 02/19/26 - Volume 1
  • Section 1
    • Letter of Transmittal
    • Notice of Proposed Changes of Rates and Charges
    • Attestation by the Authorized Accounting Representative
    • Customer Notice of Proposed Changes of Rates
  • Section 2
    • Tariff Pages
      • Redline
  • Section 3
    • Comparison of Revenue under Present and Proposed Rates
  • Section 4
    • Black Hills Power Cost of Service Study Statements A through R
      • Index Cost of Service Study
    • Statement A - Balance Sheet
    • Statement B - Income Statement
    • Statement C - Statement of Retained Earnings
    • Statement D - Utility Plant in Service
      • 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 - Working papers on Plant in Service Not Used and Useful
      • Schedule D-9 - Working Papers for Plant Acquired for which Regulatory Approval Has Not Been Obtained
      • Schedule D-10 - Pro Forma Plant Additions
      • Schedule D-11 - Pro Forma Plant Retirements
    • Statement E - Accumulated Depreciation
      • Schedule E-1 - Working Papers on Recorded Changes to Accumulated Depreciation
      • Schedule E-2 - Working Papers on Depreciation and Amortization Method
      • Schedule E-3 - Working Papers on Allocation of Overall Accounts
    • Statement F - Working Capital
      • Schedule F-1 - Monthly Balances for Materials, Supplies, Fuel Stocks and Prepayments
      • Schedule F-2 - Monthly Balances for Two Years Immediately Preceding Test Year
      • Schedule F-3 - Data Used in Computing Working Capital
    • Statement G - Cost of Capital
      • Schedule G-1 - Stock Dividends, Stock Splits or Changes in Par or Stated Value
      • Schedule G-2 - Common Stock Information
      • Schedule G-3 - Reacquisition of Bonds or Preferred Stock
      • Schedule G-4 - Earnings Per Share for Claimed Rate of Return
    • Statement H - Operation and Maintenance Expenses
      • Schedule H-1 - Adjustments to Operating and Maintenance Expenses
      • Schedule H-2 - Cost of Power and Gas
      • Schedule H-3 - Working Papers for Listed Expense Accounts
      • Schedule H-4 - Working Papers for Interdepartmental Transactions
      • Schedule H-5 - Adjustment for Annualization of Direct Employee Expenses
        • Schedule H-5 - Adjustment for Annualization of Direct Employee Expenses Confidential (not available to the public)
      • Schedule H-6 - Out of Period Non-Recurring Adjustments.
      • Schedule H-7 - Removal of Advertising Expense
      • Schedule H-8 - Removal of Dues and Contributions Expense
      • Schedule H-9 - Energy Cost Adjustment Expense Elimination
      • Schedule H-10 - Neil Simpson Complex Shared Facilities Adjustment
      • Schedule H-11 - Removal of Unallowed Advertising Expense
      • Schedule H-12 - Fleet Depreciation OM Adjustment
      • Schedule H-13 - Regulatory Commission Expense Adjustment
      • Schedule H-14 - FERC Fees Expense Adjustment
      • Schedule H-15 - Steam Generation OM Expense Adjustment
      • Schedule H-16 - Wind Generation OM Expense Adjustment
      • Schedule H-17 - Other Generation OM Expense Adjustment
      • Schedule H-18 - Generation Major Mainenance Expense Adjustment
      • Schedule H-19 - Gillette Energy Complex Shared Facilities Adjustment
      • Schedule H-20 - Gillette Energy Complex Common Allocations Adjustment
      • Schedule H-21 - Removal of Spare Turbine Expenses
      • Schedule H-22 - Generation Dispatch - Power Marketing Expense Adjustment
      • Schedule H-23 - Vegetation Management Expense Adjustment
      • Schedule H-24 - Demand Side Management Expense Adjustment
      • Schedule H-25 - Economic Development Expense Adjustment
      • Schedule H-26 - Third Party Line Locator Expense Adjustment
      • Schedule H-27 - Customer Education Expense Adjustment
      • Schedule H-28 - Removal of CUS and DC Tie OM Expense
    • Statement I - Operating Revenues
      • Schedule I-1 - Unbilled and Other Revenue Adjustment
      • Schedule I-2 - ECA Revenue Adjustment
      • Schedule I-3 - Renewable Ready Revenue Adjustment
      • Schedule I-4 - Contract Revenue Adjustment
      • Schedule I-5 - Demand Revenue Adjustment
        • Schedule I-5 - Demand Revenue Adjustment Confidential (not available to the public)
      • Schedule I-6 - CUS and DC Tie Revenue Adjustment
      • Schedule I-7 - Synchronization to Billing Determinants Adjustment
      • Schedule I-8 - Weather Normalization Adjustment
      • Schedule I-9 - Incremental Growth Adjustment
      • Schedule I-10 - Spare Turbine Revenue Adjustment
      • Schedule I-11 - BHP Shared Facilities Revenue Adjustment
        • Schedule I-11 - BHP Shared Facilities Revenue Adjustment Confidential (not available to the public)
      • Schedule I-12 - Gillette Energy Complex Revenue Adjustment
      • Schedule I-13 - Renewable Ready Revenue Credit
    • Statement J - Depreciation Expense
      • Schedule J-1 - Expense Charged Other Than Prescribed Depreciation
    • Statement K - Income Taxes
      • Statement K and Schedules K-1 - K-5 Income Taxes - Working Paper 76C Confidential (not available to the public)
      • Schedule K-1 - Working Papers for Federal Income Taxes Confidential (not available to the public)
      • Schedule K-2 - Differences in Book and Tax Depreciation
      • Schedule K-3 - Working Papers for Consolidated Federal Income Tax Confidential (not available to the public)
      • Schedule K-4 - Working Papers for an Allowance for Current Tax
      • Schedule K-5 - Working Papers for Claimed Allowances for State Income Taxes
    • Statement L - Taxes Other than Income
      • Schedule L-1 - Working Papers of Adjusted Taxes
    • Statement M - Overall Cost of Service Schedule
      • Schedule M-1 - Cacluation of Revenue Deficiency
      • Schedule M-2 - Other Rate Base Items-Tax
      • Schedule M-3 - Other Rate Base Items- Non Tax
      • Schedule M-4 - Calculation of Net Operating Loss
    • Statement N - Allocated Cost of Service by Jurisdiction
    • Statement O - Allocated Cost of Service by South Dakota Customer Class
    • Statement P - Energy Cost Adjustment Factors
    • Statement Q - Description of Utility Operations
    • Statement R - Purchases from Affiliated Companies
    • Statement T - Removal of Transmission Recovered Under FERC Rules
      • Schedule T-1 - Removal of Transmission Recovered Under DC Tie Stated Rates
      • Schedule T-2 - Removal of Transmission Recovered Under FERC Formula Rates
    • WP 1 - Operations and Maintenance Expense by Month
  • Section 5
    • Working Paper 1 - Statement A Balance Sheet
    • Working Paper 2 - Statement B - Income Statement
    • Working Paper 3 - Statement C Retained Earnings Statement
    • Working Paper 4 - Statement D Pg 1 Cost of Plant (2024 - 2025)
    • Working Paper 5 - Statement D Pg 2 Cost of Plant (2025 - 2026)
    • Working Paper 6 - Schedule D-1 Detailed Plant Accounts
    • Working Paper 7 - Schedule D-2 Plant Additions and Retirements for Test Period
    • Working Paper 8 - Schedule D-3 Accounts 101 and 106 Plant Balances by Month (Sept 2024 - Sept 2025)
    • Working Paper 9 - Schedule D-4 Summary of Major Additions and Retirements by Function (2020 - 2024)
    • Working Paper 10 - Schedule D-5 Policy of Capitalizing Interest and Other Overheads During Construction
    • Working Paper 11- Schedule D-6 Changes in Intangible Plant (2020-2025)
    • Working Paper 12 - Schedule D-7 Plant in Service - Not Used and Useful
    • Working Paper 13 - Schedule D-8 Policy of Constinuing Property Records
    • Working Paper 14 - Schedule D-9 Plant Acquired for Which Regulatory Approval Has Not Been Obtained
    • Working Paper 15 - Schedule D-10 Pro Forma Plant Additions
    • Working Paper 16 - Schedule D-11 Pro Forma Plant Retirements
    • Working Paper 17 - Statement E pg 1 Accumulated Provision for Depreciation Balances by Month (Sept 2024 - Sept 2025)
    • Working Paper 18 - Statement E pg 2 Adjusted Accumulated Depreciation
    • Working Paper 19 - Statement E pg 3 Adjusted Accum. Provision for Depreciation - Pro Forma Capital Additions
    • Working Paper 20 - Statement E pg 4 Adjusted Accum. Provision for Depreciation - Pro Forma Capital Retirements
    • Working Paper 21 - Statement E pg 5 Accumulated Depreciation for Existing Assets
    • Working Paper 22 - Schedule E-1 Recorded Changes to Accumulated Depreciation
    • Working Paper 23 - Schedule E-2 Depreciation and Amortization Method
    • Working Paper 24 - Schedule E-3 Allocation of Overall Accounts
    • Working Paper 25 - Statement F Working Capital
    • Working Paper 26 - Schedule F-1 Monthly Balances for Materials, Supplies, Fuel Stocks, and Prepayments
    • Working Paper 27 - Schedule F-2 Monthly Balances of Materials and Supplies (Sept 2023 - Sept 2025)
    • Working Paper 28 - Schedule F-3 Pg 1 per Books Cash Working Capital
    • Working Paper 29 - Schedule F-3 Pg 2 As Adjusted Cash Working Capital
    • Working Paper 30 - Statement G pg (1-4) and Schedules G-1 - G-4 Debt and Equity
    • Working Paper 31 - Statement H Operating and Maintenance Expenses
    • Working Paper 32 - Schedule H-1 Adjustments to Operating and Maintenance Expense (Labor and Non-Labor)
    • Working Paper 33 - Schedule H-2 Purchase Power and Fuel Expense Adjustment
    • Working Paper 34 - Schedule H-3 Listed Expense Accounts
    • Working Paper 35 - Schedule H-4 Intercompany Allocated Charges From BHSC Expense Adjustment
    • Working Paper 36 - Schedule H-5 Adjustment for Annualization of Direct Employee Expenses
    • Working Paper 37 - Schedule H-6 Out of Period Non-Recurring Adjustments
    • Working Paper 38 - Schedule H-7 Removal of Advertising Expense
    • Working Paper 39 - Schedule H-8 Removal of Dues and Contributions Expense
    • Working Paper 40 - Schedule H-9 Bad Debt Adjustment
    • Working Paper 41 - Schedule H-10 Pension and Retiree Healthcare Expense Adjustment
    • Working Paper 42 - Schedule H-11 Rate Case Expense Adjustment
    • Working Paper 43 - Schedule H-12 Fleet Depreciation O&M Adjustment
    • Working Paper 44 - Schedule H-13 Regulatory Commission Expense Adjustment
    • Working Paper 45 - Schedule H-14 FERC Fees Expense Adjustment
    • Working Paper 46 - Schedule H-15 Steam Generation O&M Expense Adjustment
    • Working Paper 47 - Schedule H-16 Wind Generation O&M Expense Adjustment
    • Working Paper 48 - Schedule H-17 Other Generation O&M Expense Adjustment
    • Working Paper 49 - Schedule H-18 Generation Major Maintenance Expense Adjustment
    • Working Paper 50 - Schedule H-19 Gillette Energy Complex Shared Facilities Adjustment
    • Working Paper 51 - Schedule H-20 Gillette Energy Complex - Common Allocations Adjustment
    • Working Paper 52 - Schedule H-21 Removal of Shared Turbine Expenses
    • Working Paper 53 - Schedule H-22 Generation Dispatch & Power Marketing Expense Adjustment
    • Working Paper 54 - Schedule H-23 Vegetation Management Expense Adjustment
    • Working Paper 55 - Schedule H-24 Demand Side Management Expense Adjustment
    • Working Paper 56 - Schedule H-25 Economic Development Expense Adjustment
    • Working Paper 57 - Schedule H-26 Third Party Line Locator Expense Adjustment
    • Working Paper 58 - Schedule H-27 Customer Education Expense Adjustment
    • Working Paper 59 - Schedule H-28 Removal of CUS and DC Tie O&M Expenses
    • Working Paper 60 - Statement I pg 1 Operating Revenues
    • Working Paper 61 - Statement I pg 2-3 South Dakota Revenue by Customer Classification
    • Working Paper 62 - Schedule I-1 Unbilled & Other Revenue Adjustment
    • Working Paper 63 - Schedule I-2 ECA Revenue Adjustment 1 of 2
    • Working Paper 64 - Schedule I-3 Renewable Ready Revenue Adjustment
    • Working Paper 65 - Schedule I-4 Contract Revenue Adjustment
    • Working Paper 66 - Schedule I-5 Demand Revenue Adjustment
    • Working Paper 67 - Schedule I-6 CUS and DC Tie Revenue Adjustment
    • Working Paper 68 - Schedule I-7 Synchronization to Billing Determinants Adjustment
    • Working Paper 69 - Schedule I-8 Weather Normalization Adjustment
    • Working Paper 70 - Schedule I-9 Incremental Growth Adjustment
    • Working Paper 71 - Schedule I-10 Spare Turbine Revenue Adjustment
    • Working Paper 72 - Schedule I-11 BHP Shared Facilities Revenue Adjustment
    • Working Paper 73 - Schedule I-12 Gillette Energy Complex Revenue Adjustment
    • Working Paper 74 - Schedule I-13 Renewable Ready Revenue Credit
    • Working Paper 75 - Statement J and Schedule J-1 Depreciation and Amortization Expense Adjustment
    • Working Paper 76 - Statement K and Schedules K-1 - K-5 Income Taxes
    • Working Paper 77 - Statement L and Schedule L-1 Taxes Other Than Income Tax Adjustment
    • Working Paper 78 - Statement M pg 1-3 Overall & Allocated Cost of Service
    • Working Paper 79 - Schedule M-1 Calculation of Revenue Deficiency
    • Working Paper 80 - Schedule M-2 Other Rate Base Items - Tax
    • Working Paper 81 - Schedule M-3 Other Rate Base Items - Non Tax
    • Working Paper 82 - Schedule M-4 Calculation of Net Operating Loss
    • Working Paper 83 - Statement P pg 1-2 Fuel Cost Adjustment Factor
    • Working Paper 84 - Statement R pg 1-6 Computation of Coal Pricing
    • Working Paper 85 - Statement T Removal of Transmission Recovered Under FERC Rates
    • Working Paper 86 - Schedule T-1 Removal of Transmission Recovered Under DC Tie Stated Rates
    • Working Paper 87 - Schedule T-2 Removal of Transmission Recovered Under FERC Formula Rates
• Volume 2
  • Eric M. Egge's Direct Testimony
  • Ethan J. Fritel's Direct Testimony
    • Exhibit EJF-1 - Billing Determinants
    • Exhibit EJF-2 - Weather Normalization Adjustment
    • Exhibit EJF-3 - Customer Growth Adjustment
    • Exhibit EJF- 4 - Revenue Synchronization Adjustment
    • Exhibit EJF-5 - Lighting Revenues Under Current and Proposed Rates
    • Exhibit EJF-6 - LED Cost Model
    • Exhibit EJF-7 - Revenue Proof
  • Jerrad S. Hammer's Direct Testimony
  • Douglas N. Hyatt's Direct Testimony
    • Exhibit DNH-1 - Revenue Allocation
    • Exhibit DNH-2 - System Load Study
    • Exhibit DNH-3 - Customer Load Study
    • Exhibit DNH-4 - Demand Allocation Model
    • Exhibit DNH-5 - Primary and Secondary Cost Study
    • Exhibit DNH-6 - Meter Cost Study
    • Exhibits DNH-7 - Summary of Rate Design
    • Exhibit DNH-8 - Customer Bill Impacts
  • Jason S. Keil's Direct Testimony
    • Exhibit JSK 1 - Summary of Tariff Changes
    • Exhibit JSK -2 - BHSC CAM Amended 6-30-24
    • Exhibit JSK -3 - BHSC CAM Amended 12-20-24
    • Exhibit JSK-4 - Spare Turbine Agreements
    • Exhibit JSK-5 - Horizon Point Facility Agreement
    • Exhibit JSK-6 - SD Residential Prescriptive Rebate Form
    • Exhibit JSK-7- SD Commercial Prescriptive Rebate Form
  • Mark L. Lux's Direct Testimony
    • Exhibit MLL-1 - Neil Simpson II Conversion Overview
    • Exhibit MLL-2 - West Peak Energy Study
    • Exhibit MLL-3 - Ben French Decommissioning Estimate Confidential (not available to the public)
    • Exhibit MLL-4 - Ben French Decommissioning Plan
  • Lori J. Mack's Direct Testimony
    • Exhibit LJM-1 - Lead-Lag Study
    • Exhibit LJM-2 - BHSC 2018 Depreciation Study
  • Adrien M. McKenzie's Direct Testimony
    • Exhibit AMM-1 - Qualifications of Adrien M. McKenzie
    • Exhibit AMM-2 - ROE Analysis – Summary of Results
    • Exhibit AMM-3 - Regulatory Mechanisms
    • Exhibit AMM-4 - Capital Structure
    • Exhibit AMM-5 - DCF Model
    • Exhibit AMM-6 - BR+SV Growth Rate
    • Exhibit AMM-7 - CAPM
    • Exhibit AMM-8 - Empirical CAPM
    • Exhibit AMM-9 - Utility Risk Premium
    • Exhibit AMM-10 - Expected Earnings Approach
  • Michael A. Pogany's Direct Testimony
    • Exhibit MAP-1 - Map of Communities Served in South Dakota
    • Exhibit MAP-2 - Black Hills Corporation Organizational Chart
    • Exhibit MAP-3 - Black Hills Power Wildfire Mitigation Plan
    • Exhibit MAP-4 - Black Hills Power Transmission Line Loss Study
    • Exhibit MAP-5 - Black Hills Power Distribution Line Loss Study
  • Kris J. Pontious' Direct Testimony
  • John J. Spanos' Direct Testimony
    • Exhibit JJS-1 - Depreciation Experience
    • Exhibit JJS-2 - 2025 Black Hills Power Depreciation Study
  • Thomas D. Stevens' Direct Testimony
    • Exhibit TDS-1 - Moody's Rating Methodology 08-06-24
    • Exhibit TDS-2 - S&P Sector Specific Corporate Methodology 07-07-25
• 03/06/26 - Black Hills Power, Inc. dba Black Hills Energy’s Letter regarding its Updated Customer Notice
  • Updated Customer Notice of Proposed Changes of Rates