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Overview and Summary of Significant Accounting Policies
6 Months Ended
Jun. 30, 2021
Significant Accounting Policies [Line Items]  
Overview and Summary of Significant Accounting Policies Overview and Summary of Significant Accounting Policies
Description of Business
DPL is a regional energy company organized in 1985 under the laws of Ohio. DPL has one reportable segment: the Utility segment. See Note 10 – Business Segments for more information relating to this reportable segment. The terms “we,” “us,” “our” and “ours” are used to refer to DPL and its subsidiaries.

DPL is an indirectly wholly-owned subsidiary of AES.

DP&L, a wholly-owned subsidiary of DPL that does business as AES Ohio, is a public utility incorporated in 1911 under the laws of Ohio. Beginning in 2001, Ohio law gave Ohio consumers the right to choose the electric generation supplier from whom they purchase retail generation service; however, retail transmission and distribution services are still regulated. AES Ohio has the exclusive right to provide such transmission and distribution services to approximately 532,000 customers located in West Central Ohio. Additionally, AES Ohio provides retail SSO electric service to residential, commercial, industrial and governmental customers in a 6,000-square mile area of West Central Ohio. AES Ohio sources all of the generation for its SSO customers through a competitive bid process. Principal industries located in AES Ohio’s service territory include automotive, food processing, paper, plastic, manufacturing and defense. AES Ohio's sales reflect the general economic conditions, seasonal weather patterns of the area and the market price of electricity. AES Ohio owned interests in the retired Hutchings Coal Station until its transfer in 2020, and currently owns numerous transmission facilities. AES Ohio sells its proportional share of energy and capacity from its investment in OVEC into the wholesale market.

DPL’s other primary subsidiaries are MVIC and Miami Valley Lighting. MVIC is our captive insurance company that provides insurance services to AES Ohio and our other subsidiaries, and Miami Valley Lighting provides street and outdoor lighting services to customers in the Dayton region. In prior periods, AES Ohio Generation was also a primary subsidiary and sold all of its energy and capacity into the wholesale market. In 2020, AES Ohio Generation's only operating asset was an undivided interest in Conesville, which closed in May 2020 and was sold in June 2020. See Note 12 – Discontinued Operations for more information. DPL's subsidiaries are all wholly-owned.

DPL also has a wholly-owned business trust, DPL Capital Trust II, formed for the purpose of issuing trust capital securities to investors.

AES Ohio’s electric transmission and distribution businesses are subject to rate regulation by federal and state regulators. Accordingly, AES Ohio applies the accounting standards for regulated operations to its electric transmission and distribution businesses and records regulatory assets when incurred costs are expected to be recovered in future customer rates and regulatory liabilities when current cost recoveries in customer rates relate to expected future costs or overcollections of riders.

Financial Statement Presentation
DPL’s Condensed Consolidated Financial Statements include the accounts of DPL and its wholly-owned subsidiaries except for DPL Capital Trust II, which is not consolidated, consistent with the provisions of GAAP.

Certain immaterial amounts from prior periods have been reclassified to conform to the current period presentation.

All material intercompany accounts and transactions are eliminated in consolidation. We have evaluated subsequent events through the date this report is issued.

These financial statements have been prepared in accordance with GAAP, as contained in the FASB ASC, for interim financial statements and Article 10 of Regulation S-X issued by the SEC. Accordingly, they do not include all the information and footnotes required by GAAP for annual fiscal reporting periods. Therefore, our interim financial statements in this report should be read along with the annual financial statements included in our Form 10-K for the fiscal year ended December 31, 2020.
In the opinion of our management, the Condensed Consolidated Financial Statements presented in this report contain all adjustments necessary to fairly state our financial position as of June 30, 2021; our results of operations for the three and six months ended June 30, 2021 and 2020, our cash flows for the six months ended June 30, 2021 and 2020 and the changes in our equity for the three and six months ended June 30, 2021 and 2020. Unless otherwise noted, all adjustments are normal and recurring in nature. Due to various factors, interim results for the three and six months ended June 30, 2021 may not be indicative of our results that will be realized for the full year ending December 31, 2021.

The preparation of financial statements in conformity with GAAP requires us to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the revenues and expenses of the periods reported. Actual results could differ from these estimates. Significant items subject to such estimates and judgments include: recognition of revenue including unbilled revenues, the carrying value of property, plant and equipment; the valuation of insurance and claims liabilities; the valuation of allowances for credit losses and deferred income taxes; regulatory assets and liabilities; liabilities recorded for income tax exposures; litigation; contingencies; and assets and liabilities related to employee benefits.

Cash, Cash Equivalents and Restricted Cash
The following table provides a summary of cash, cash equivalents, and restricted cash amounts reported on the Condensed Consolidated Balance Sheets that reconcile to the total of such amounts as shown on the Condensed Consolidated Statements of Cash Flows:
$ in millionsJune 30, 2021December 31, 2020
Cash and cash equivalents$16.7 $25.4 
Restricted cash0.1 0.1 
Cash, Cash Equivalents, and Restricted Cash, End of Period$16.8 $25.5 

Accounts Receivable and Allowance for Credit Losses
Accounts receivable were as follows at June 30, 2021 and December 31, 2020:
June 30,December 31,
$ in millions20212020
Accounts receivable, net:
Customer receivables$41.5 $48.5 
Unbilled revenue19.3 21.6 
Amounts due from affiliates 0.8 0.2 
Due from PJM transmission enhancement settlement1.7 1.7 
Other3.8 0.5 
Allowance for credit losses(1.7)(2.8)
Total accounts receivable, net$65.4 $69.7 

The following table is a rollforward of our allowance for credit losses related to the accounts receivable balances for the six months ended June 30, 2021 and 2020 :
$ in millionsBeginning Allowance BalanceCurrent Period ProvisionWrite-offs Charged Against AllowancesRecoveries CollectedEnding Allowance Balance
2021$2.8 $(0.2)$(1.6)$0.7 $1.7 
2020$0.4 $2.6 $(0.9)$0.9 $3.0 

The allowance for credit losses primarily relates to utility customer receivables, including unbilled amounts. Expected credit loss estimates are developed by disaggregating customers into those with similar credit risk characteristics and using historical credit loss experience. In addition, we also consider how current and future economic conditions are expected to impact collectability, as applicable, including the economic impacts of the COVID-19 pandemic on our receivable balance as of June 30, 2021. Amounts are written off when reasonable collections efforts have been exhausted. During 2021, the current period provision and allowance for credit losses have decreased due to lower past due customer receivable balances. See Note 13 – Risks and Uncertainties for additional discussion of the COVID-19 pandemic.
Inventories
Inventories consist of materials and supplies at June 30, 2021 and December 31, 2020.

Accounting for Taxes Collected from Customers and Remitted to Governmental Authorities
AES Ohio collects certain excise taxes levied by state or local governments from its customers. These taxes are accounted for on a net basis and not included in revenue. The amounts of such taxes collected for the three and six months ended June 30, 2021 and 2020 were as follows:
Three months endedSix months ended
June 30,June 30,
2021202020212020
Excise taxes collected$11.3 $10.9 $24.2 $23.3 

Accumulated other comprehensive loss
The amounts reclassified out of Accumulated other comprehensive loss by component during the three and six months ended June 30, 2021 and 2020 are as follows:
Details about Accumulated Other Comprehensive Loss componentsAffected line item in the Condensed Consolidated Statements of OperationsThree months endedSix months ended
June 30,June 30,
$ in millions2021202020212020
Gains and losses on cash flow hedges (Note 4):
Interest expense$(0.3)$(0.2)$(0.5)$(0.6)
Income tax expense0.1 — 0.1 0.1 
Net of income taxes(0.2)(0.2)(0.4)(0.5)
Amortization of defined benefit pension items (Note 7):
Other expense0.7 0.3 1.3 0.6 
Income tax benefit(0.2)(0.1)(0.3)(0.1)
Net of income taxes0.5 0.2 1.0 0.5 
Total reclassifications for the period, net of income taxes$0.3 $— $0.6 $— 

The changes in the components of Accumulated other comprehensive loss during the six months ended June 30, 2021 are as follows:
$ in millionsGains / (losses) on cash flow hedgesChange in unfunded pension and postretirement benefit obligationsTotal
Balance at January 1, 2021$13.6 $(25.9)$(12.3)
Amounts reclassified from AOCL to earnings(0.4)1.0 0.6 
Net current period other comprehensive income / (loss)(0.4)1.0 0.6 
Balance at June 30, 2021$13.2 $(24.9)$(11.7)

New Accounting Pronouncements Issued But Not Yet Effective – The following table provides a brief description of recent accounting pronouncements that could have a material impact on our consolidated financial statements. Accounting pronouncements not listed below were assessed and determined to be either not applicable or are expected to have no material impact on our consolidated financial statements.
ASU Number and NameDescriptionDate of AdoptionEffect on the financial statements upon adoption
2020-04, Reference Rate Form (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting
The standard provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions that reference to LIBOR or another reference rate expected to be discontinued by reference rate reform. This standard is effective for a limited period of time (March 12, 2020 - December 21, 2022).
Effective for all entities March 12, 2020 - December 31, 2022We are currently evaluating the impact of adopting the standard on our condensed consolidated financial statements.
Subsidiaries [Member]  
Significant Accounting Policies [Line Items]  
Overview and Summary of Significant Accounting Policies Overview and Summary of Significant Accounting Policies
Description of Business
DP&L, which does business as AES Ohio, is a public utility incorporated in 1911 under the laws of Ohio. Beginning in 2001, Ohio law gave Ohio consumers the right to choose the electric generation supplier from whom they purchase retail generation service; however, retail transmission and distribution services are still regulated. AES Ohio has the exclusive right to provide such transmission and distribution services to approximately 532,000 customers located in West Central Ohio. Additionally, AES Ohio provides retail SSO electric service to residential, commercial, industrial and governmental customers in a 6,000-square mile area of West Central Ohio. AES Ohio sources all of the generation for its SSO customers through a competitive bid process. Principal industries located in AES Ohio’s service territory include automotive, food processing, paper, plastic, manufacturing and defense. AES Ohio's sales reflect the general economic conditions, seasonal weather patterns of the area and the market price of electricity. AES Ohio owned interests in the retired Hutchings Coal Station until its transfer in 2020, and currently owns numerous transmission facilities. AES Ohio sells its proportional share of energy and capacity from its investment in OVEC into the wholesale market. AES Ohio has one reportable segment, the Utility segment. In addition to AES Ohio's electric transmission and distribution businesses, the Utility segment includes revenues and costs associated with AES Ohio's investment in OVEC and the historical results of AES Ohio’s Hutchings Coal Station. AES Ohio is a subsidiary of DPL. The terms “we,” “us,” “our” and “ours” are used to refer to AES Ohio.

AES Ohio’s electric transmission and distribution businesses are subject to rate regulation by federal and state regulators. Accordingly, AES Ohio applies the accounting standards for regulated operations to its electric transmission and distribution businesses and records regulatory assets when incurred costs are expected to be recovered in future customer rates and regulatory liabilities when current cost recoveries in customer rates relate to expected future costs or overcollections of riders.

Financial Statement Presentation
AES Ohio does not have any subsidiaries.

We have evaluated subsequent events through the date this report is issued.

Certain immaterial amounts from prior periods have been reclassified to conform to the current period presentation.

These financial statements have been prepared in accordance with GAAP, as contained in the FASB ASC, for interim financial statements and Article 10 of Regulation S-X issued by the SEC. Accordingly, they do not include all the information and footnotes required by GAAP for annual fiscal reporting periods. Therefore, our interim financial statements in this report should be read along with the annual financial statements included in our Form 10-K for the fiscal year ended December 31, 2020.

In the opinion of our management, the Condensed Financial Statements presented in this report contain all adjustments necessary to fairly state our financial position as of June 30, 2021; our results of operations for the three and six months ended June 30, 2021 and 2020, our cash flows for the six months ended June 30, 2021 and 2020 and the changes in our equity for the three and six months ended June 30, 2021 and 2020. Unless otherwise noted, all adjustments are normal and recurring in nature. Due to various factors, interim results for the three and six months ended June 30, 2021 may not be indicative of our results that will be realized for the full year ending December 31, 2021.

The preparation of financial statements in conformity with GAAP requires us to make estimates and judgments that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the revenues and expenses of the periods reported. Actual results could differ from these estimates. Significant items subject to such estimates and judgments include: recognition of revenue including unbilled revenues, the carrying value of property, plant and equipment; the valuation of insurance and claims liabilities; the valuation of allowances for credit losses and deferred income taxes; regulatory assets and liabilities; liabilities recorded for income tax exposures; litigation; contingencies; and assets and liabilities related to employee benefits.
Cash, Cash Equivalents and Restricted Cash
The following table provides a summary of cash, cash equivalents, and restricted cash amounts reported on the Condensed Balance Sheets that reconcile to the total of such amounts as shown on the Condensed Statements of Cash Flows:
$ in millionsJune 30, 2021December 31, 2020
Cash and cash equivalents$4.8 $11.7 
Restricted cash0.1 0.1 
Cash, Cash Equivalents, and Restricted Cash, End of Period$4.9 $11.8 

Accounts Receivable and Allowance for Credit Losses
Accounts receivable were as follows at June 30, 2021 and December 31, 2020:
June 30,December 31,
$ in millions20212020
Accounts receivable, net:
Customer receivables40.5 $47.6 
Unbilled revenue19.3 21.6 
Amounts due from affiliates 1.6 1.9 
Due from PJM transmission enhancement settlement1.7 1.7 
Other3.5 0.2 
Allowance for credit losses(1.7)(2.8)
Total accounts receivable, net$64.9 $70.2 

The following table is a rollforward of our allowance for credit losses related to the accounts receivable balances for the six months ended June 30, 2021 and 2020:
$ in millionsBeginning Allowance BalanceCurrent Period ProvisionWrite-offs Charged Against AllowancesRecoveries CollectedEnding Allowance Balance
2021$2.8 $(0.2)$(1.6)$0.7 $1.7 
2020$0.4 $2.6 $(0.9)$0.9 $3.0 

The allowance for credit losses primarily relates to utility customer receivables, including unbilled amounts. Expected credit loss estimates are developed by disaggregating customers into those with similar credit risk characteristics and using historical credit loss experience. In addition, we also consider how current and future economic conditions are expected to impact collectability, as applicable, including the economic impacts of the COVID-19 pandemic on our receivable balance as of June 30, 2021. Amounts are written off when reasonable collections efforts have been exhausted. During 2021, the current period provision and allowance for credit losses have decreased due to lower past due customer receivable balances. See Note 11 – Risks and Uncertainties for additional discussion of the COVID-19 pandemic.

Inventories
Inventories consist of materials and supplies at June 30, 2021 and December 31, 2020.

Accounting for Taxes Collected from Customers and Remitted to Governmental Authorities
AES Ohio collects certain excise taxes levied by state or local governments from its customers. These taxes are accounted for on a net basis and not included in revenue. The amounts of such taxes collected for the three and six months ended June 30, 2021 and 2020 were as follows:
Three months endedSix months ended
June 30,June 30,
2021202020212020
Excise taxes collected$11.3 $10.9 $24.2 $23.3 
Accumulated other comprehensive loss
The amounts reclassified out of Accumulated other comprehensive loss by component during the three and six months ended June 30, 2021 and 2020 are as follows:
Details about Accumulated Other Comprehensive Loss componentsAffected line item in the Condensed Consolidated Statements of OperationsThree months endedSix months ended
June 30,June 30,
$ in millions2021202020212020
Gains and losses on cash flow hedges (Note 4):
Interest expense$ $(0.1)$ $(0.2)
Income tax benefit —  — 
Net of income taxes (0.1) (0.2)
Amortization of defined benefit pension items (Note 7):
Other expense1.2 1.0 2.5 2.0 
Income tax benefit(0.3)(0.2)(0.6)(0.4)
Net of income taxes0.9 0.8 1.9 1.6 
Total reclassifications for the period, net of income taxes$0.9 $0.7 $1.9 $1.4 

The changes in the components of Accumulated other comprehensive loss during the six months ended June 30, 2021 are as follows:
$ in millionsChange in Accumulated other comprehensive loss
Balance at January 1, 2021$(42.1)
Amounts reclassified from AOCL to earnings1.9 
Net current period other comprehensive income1.9 
Balance at June 30, 2021$(40.2)

New Accounting Pronouncements Issued But Not Yet Effective – The following table provides a brief description of recent accounting pronouncements that could have a material impact on our financial statements. Accounting pronouncements not listed below were assessed and determined to be either not applicable or are expected to have no material impact on our financial statements.
ASU Number and NameDescriptionDate of AdoptionEffect on the financial statements upon adoption
2020-04, Reference Rate Form (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting
The standard provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions that reference to LIBOR or another reference rate expected to be discontinued by reference rate reform. This standard is effective for a limited period of time (March 12, 2020 - December 21, 2022).
Effective for all entities March 12, 2020 - December 31, 2022We are currently evaluating the impact of adopting the standard on our condensed financial statements.