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8-K - 8-K - Duke Energy CORPjune20208-k.htm


EXHIBIT 99.1

Duke Energy Indiana
Summary of Order Issued by the Indiana Utility Regulatory Commission
(IURC Cause No. 45253)


Background

On July 2, 2019, Duke Energy Indiana (DEI) filed a general rate case with the Indiana Utility Regulatory Commission (IURC). On September 9, and December 4, 2019, DEI adjusted the request to $396 million for an overall approximate 15.6% increase in retail revenues:
The rate case filing requests an overall rate of return of 6.0% based on approval of a 10.4% return on equity (ROE) and a 53.0% equity component of the capital structure
The request is based on a DEI forecasted rate base of $10.2 billion as of December 31, 2020
If approved, annualized rates would increase $345 million in 2020 Step 1) and another $50 million in 2021 (Step 2)
On June 29, 2020, the IURC issued an order approving a revenue increase of approximately $146 million for the total increase, before utility receipt taxes. Step 1 rates are estimated to be approximately 75% of the total and become effective late July 2020, and Step 2 rates are estimated to be the remaining 25% of the total rate increase to be effective Q1 2021, trued up with carrying costs to January 2021
DEI will make a compliance filing with the IURC in July 2020 for their review and approval before Step 1 rates are implemented


Major Components of the Order

ROE, Capital Structure and Rate Base
Implements an overall cost of capital of 5.71% based on a 9.7% return on equity and a 53.0%1 equity component of the capital structure
Approved DEI rate base of $9.9 billion as of December 31, 2019, and $10.2 billion as of December 31, 2020

Edwardsport
The Edwardsport IGCC station will be moved to base rates and the rider currently recovering the costs will be terminated
Depreciation
Approves the useful lives of the depreciation study, including accelerated retirement dates for certain coal-fired generating units. Also approves the use of a regulatory asset for end-of-life inventory at retired generating plants in lieu of inclusion as a cost of decommission and dismantlement
Changes the methodology to average life group (ALG) from the equal life group (ELG)

Coal Ash Related Compliance Costs
Approves recovery of and on $212 million in coal ash costs incurred through 2018 over an 18-year period
Deferral and cost recovery of expenditures post-2018 are being considered in a pending sub docket proceeding

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1 Indiana’s capital structure includes Accumulated Deferred Income Taxes (ADIT). When ADIT is excluded, resulting cap structure approximates 53% equity.





Additional Information
Includes recovery of and on the remaining 20% of costs under Duke Energy Indiana’s T&D Infrastructure Modernization Plan (TDSIC) plan; 80% is recovered through the TDSIC rider
Approves recovery of various renewables investments through inclusion in rate base
Establishes reserve accounting for major storms expenditures and vegetation management
Approves request to defer O&M, depreciation and carrying costs on the Customer Connect customer service platform during appropriate phases of the project
DEI’s request for a five-year de-coupling program for residential and commercial customers and optional dynamic pricing rates was not approved


Reconciliation of Request to Order


The Indiana Utility Regulatory Commission reduced DEI’s request by slightly more than $200 million, when accounting for the utility receipts tax
Approximately 50% is due to the change in depreciation methodology and use of regulatory asset for the end-of-life inventory at retired generating plants
Approximately 20% is due to the approved 9.7% ROE versus requested 10.4%
Approximately 20% is related to miscellaneous earnings neutral adjustments
DEI’s compliance filing to the IURC for their review and approval before Step 1 rates are implemented will include the final reconciliation and Step 1 and 2 increase amounts