Leases

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Leases

LEASESAs part of its operations, Duke Energy leases certain aircraft, space on communication towers, industrial equipment, fleet vehicles, fuel transportation (barges and railcars), land and office space under various terms and expiration dates. Additionally, Duke Energy Carolinas, Duke Energy Progress and Duke Energy Indiana have finance leases related to firm natural gas pipeline transportation capacity. Duke Energy Progress and Duke Energy Florida have entered into certain PPAs, which are classified as finance and operating leases.

Duke Energy has certain lease agreements, which include variable lease payments that are based on the usage of an asset. These variable lease payments are not included in the measurement of the ROU assets or operating lease liabilities on the Consolidated Financial Statements.

Certain Duke Energy lease agreements include options for renewal and early termination. The intent to renew a lease varies depending on the lease type and asset. Renewal options that are reasonably certain to be exercised are included in the lease measurements. The decision to terminate a lease early is dependent on various economic factors. No termination options have been included in any of the lease measurements.

Duke Energy Carolinas entered into a sale-leaseback arrangement in December 2019, to construct and occupy an office tower. The lease agreement was evaluated as a sale-leaseback of real estate and it was determined that the transaction did not qualify for sale-leaseback accounting. As a result, the transaction is being accounted for as a financing. For this transaction, Duke Energy Carolinas will continue to record the real estate on the Consolidated Balance Sheets within Property, Plant and Equipment as if it were the legal owner and will continue to recognize depreciation expense over the estimated useful life. In addition, the failed sale-leaseback obligation is reported within Long-Term Debt on the Consolidated Balance Sheets, with the monthly lease payments commencing after the construction phase being split between interest expense and principal pay down of the debt.

Duke Energy operates various renewable energy projects and sells the generated output to utilities, electric cooperatives, municipalities and commercial and industrial customers through long-term PPAs. In certain situations, these PPAs and the associated renewable energy projects qualify as operating leases. Rental income from these leases is accounted for as Nonregulated electric and other revenues in the Consolidated Statements of Operations. There are no minimum lease payments as all payments are contingent based on actual electricity generated by the renewable energy projects. Contingent lease payments were $259 million, $275 million and $264 million for the years ended December 31, 2021, 2020, and 2019, respectively. Renewable energy projects owned by Duke Energy and accounted for as operating leases had a cost basis of $3,339 million and $3,335 million and accumulated depreciation of $966 million and $848 million at December 31, 2021, and 2020, respectively. These assets are principally classified as nonregulated electric generation and transmission assets.

Piedmont has certain agreements with Duke Energy Carolinas for the construction and transportation of natural gas pipelines to supply its natural gas plant needs. Piedmont accounts for these pipeline lateral contracts as sales-type leases since the present value of the sum of the lease payments equals the fair value of the assets. These pipeline lateral assets owned by Piedmont had a current net investment basis of $2 million as of December 31, 2021, and 2020, and a long-term net investment basis of $203 million and $205 million as of December 31, 2021, and 2020, respectively. These assets are classified in Other, within Current Assets and Other Noncurrent Assets, respectively, on Piedmont's Consolidated Balance Sheets. Duke Energy Carolinas accounts for the contracts as finance leases. The activity for these contracts is eliminated in consolidation at Duke Energy.

The following tables present the components of lease expense.

	Year Ended December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Operating lease expense(a)	$	250	$	43	$	155	$	83	$	72	$	11	$	18	$	7
Short-term lease expense(a)	5		—		2		1		1		—		2		—
Variable lease expense(a)	41		17		22		10		12		—		—		1
Finance lease expense
Amortization of leased assets(b)	219		5		37		18		19		—		1		—
Interest on lease liabilities(c)	55		33		48		42		6		—		—		—
Total finance lease expense	274		38		85		60		25		—		1		—
Total lease expense	$	570	$	98	$	264	$	154	$	110	$	11	$	21	$	8

(a)    Included in Operations, maintenance and other or, for barges and railcars, Fuel used in electric generation and purchased power on the Consolidated Statements of Operations.

(b)    Included in Depreciation and amortization on the Consolidated Statements of Operations.

(c)    Included in Interest Expense on the Consolidated Statements of Operations.

	Year Ended December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Operating lease expense(a)	$	283	$	53	$	162	$	72	$	90	$	11	$	19	$	7
Short-term lease expense(a)	4		—		2		1		1		—		1		—
Variable lease expense(a)	30		13		13		5		8		—		1		1
Finance lease expense
Amortization of leased assets(b)	119		8		24		6		18		—		1		—
Interest on lease liabilities(c)	61		30		44		37		7		—		—		—
Total finance lease expense	180		38		68		43		25		—		1		—
Total lease expense	$	497	$	104	$	245	$	121	$	124	$	11	$	22	$	8

(a)    Included in Operations, maintenance and other or, for barges and railcars, Fuel used in electric generation and purchased power on the Consolidated Statements of Operations.

(b)    Included in Depreciation and amortization on the Consolidated Statements of Operations.

(c)    Included in Interest Expense on the Consolidated Statements of Operations.

The following table presents operating lease maturities and a reconciliation of the undiscounted cash flows to operating lease liabilities.

	December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
2022	$	225	$	24	$	118	$	63	$	55	$	2	$	6	$	5
2023	212		21		118		64		54		2		6		5
2024	185		14		110		56		54		2		4		5
2025	156		10		96		42		54		2		4		5
2026	136		10		92		38		54		2		4		—
Thereafter	594		42		290		220		70		16		50		—
Total operating lease payments	1,508		121		824		483		341		26		74		20
Less: present value discount	(247)		(21)		(124)		(83)		(41)		(7)		(20)		(1)
Total operating lease liabilities(a)	$	1,261	$	100	$	700	$	400	$	300	$	19	$	54	$	19

(a)    Certain operating lease payments include renewal options that are reasonably certain to be exercised.

The following table presents finance lease maturities and a reconciliation of the undiscounted cash flows to finance lease liabilities.

	December 31, 2021
			Duke				Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Indiana
2022	$	201	$	38	$	111	$	86	$	25	$	1
2023	198		38		103		78		25		1
2024	143		38		88		79		9		1
2025	76		38		85		80		5		1
2026	77		38		86		81		5		1
Thereafter	658		464		637		636		1		24
Total finance lease payments	1,353		654		1,110		1,040		70		29
Less: amounts representing interest	(438)		(365)		(420)		(411)		(9)		(19)
Total finance lease liabilities	$	915	$	289	$	690	$	629	$	61	$	10

The following tables contain additional information related to leases.

		December 31, 2021
				Duke				Duke		Duke		Duke		Duke
		Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Classification	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Assets
Operating	Operating lease ROU assets, net	$	1,266	$	92	$	691	$	389	$	302	$	19	$	53	$	16
Finance	Net property, plant and equipment	950		302		729		627		102		—		7		—
Total lease assets		$	2,216	$	394	$	1,420	$	1,016	$	404	$	19	$	60	$	16
Liabilities
Current
Operating	Other current liabilities	$	187	$	22	$	94	$	50	$	44	$	1	$	4	$	5
Finance	Current maturities of long-term debt	151		6		61		41		20		—		—		—
Noncurrent
Operating	Operating lease liabilities	1,074		78		606		350		256		18		50		14
Finance	Long-Term Debt	764		283		629		588		41		—		10		—
Total lease liabilities		$	2,176	$	389	$	1,390	$	1,029	$	361	$	19	$	64	$	19

		December 31, 2020
				Duke				Duke		Duke		Duke		Duke
		Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Classification	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Assets
Operating	Operating lease ROU assets, net	$	1,524	$	110	$	690	$	346	$	344	$	20	$	55	$	20
Finance	Net property, plant and equipment	797		312		416		297		119		—		7		—
Total lease assets		$	2,321	$	422	$	1,106	$	643	$	463	$	20	$	62	$	20
Liabilities
Current
Operating	Other current liabilities	$	177	$	20	$	73	$	31	$	42	$	1	$	3	$	4
Finance	Current maturities of long-term debt	129		5		26		7		19		—		—		—
Noncurrent
Operating	Operating lease liabilities	1,340		97		623		323		300		20		53		19
Finance	Long-Term Debt	716		289		351		289		62		—		10		—
Total lease liabilities		$	2,362	$	411	$	1,073	$	650	$	423	$	21	$	66	$	23

	Year Ended December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Cash paid for amounts included in the measurement of lease liabilities(a)
Operating cash flows from operating leases	$	245	$	25	$	117	$	62	$	55	$	2	$	6	$	5
Operating cash flows from finance leases	55		33		48		42		6		—		—		—
Financing cash flows from finance leases	219		5		37		18		19		—		1		—
Lease assets obtained in exchange for new lease liabilities (non-cash)
Operating(b)	$	182	$	4	$	99	$	99	$	—	$	—	$	—	$	—
Finance	322		—		322		322		—		—		—		—

(a)    No amounts were classified as investing cash flows from operating leases for the year ended December 31, 2021.

(b)    Does not include ROU assets recorded as a result of the adoption of the new lease standard.

	Year Ended December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Cash paid for amounts included in the measurement of lease liabilities(a)
Operating cash flows from operating leases	$	271	$	31	$	124	$	52	$	72	$	2	$	6	$	5
Operating cash flows from finance leases	61		30		44		37		7		—		—		—
Financing cash flows from finance leases	119		8		24		6		18		—		1		—
Lease assets obtained in exchange for new lease liabilities (non-cash)
Operating(b)	$	116	$	17	$	—	$	—	$	—	$	—	$	1	$	—
Finance	125		125		—		—		—		—		—		—

(a)    No amounts were classified as investing cash flows from operating leases for the year ended December 31, 2020.

(b)    Does not include ROU assets recorded as a result of the adoption of the new lease standard.

	December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Weighted average remaining lease term (years)
Operating leases	9		9		8		10		7		16		16		4
Finance leases	10		18		13		13		11		—		24		—
Weighted average discount rate(a)
Operating leases	3.6	%	3.5	%	3.6	%	3.4	%	3.8	%	4.2	%	4.1	%	3.6	%
Finance leases	7.3	%	11.6	%	9.0	%	9.0	%	8.2	%	—	%	11.9	%	—	%

(a)    The discount rate is calculated using the rate implicit in a lease if it is readily determinable. Generally, the rate used by the lessor is not provided to Duke Energy and in these cases the incremental borrowing rate is used. Duke Energy will typically use its fully collateralized incremental borrowing rate as of the commencement date to calculate and record the lease. The incremental borrowing rate is influenced by the lessee’s credit rating and lease term and as such may differ for individual leases, embedded leases or portfolios of leased assets.

	December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Weighted average remaining lease term (years)
Operating leases	10		9		10		12		8		17		18		5
Finance leases	13		19		15		17		11		—		25		—
Weighted average discount rate(a)
Operating leases	3.8	%	3.4	%	3.8	%	3.9	%	3.8	%	4.2	%	4.2	%	3.6	%
Finance leases	8.4	%	11.6	%	11.9	%	12.4	%	8.2	%	—	%	11.9	%	—	%

(a)    The discount rate is calculated using the rate implicit in a lease if it is readily determinable. Generally, the rate used by the lessor is not provided to Duke Energy and in these cases the incremental borrowing rate is used. Duke Energy will typically use its fully collateralized incremental borrowing rate as of the commencement date to calculate and record the lease. The incremental borrowing rate is influenced by the lessee’s credit rating and lease term and as such may differ for individual leases, embedded leases or portfolios of leased assets.

Leases

LEASESAs part of its operations, Duke Energy leases certain aircraft, space on communication towers, industrial equipment, fleet vehicles, fuel transportation (barges and railcars), land and office space under various terms and expiration dates. Additionally, Duke Energy Carolinas, Duke Energy Progress and Duke Energy Indiana have finance leases related to firm natural gas pipeline transportation capacity. Duke Energy Progress and Duke Energy Florida have entered into certain PPAs, which are classified as finance and operating leases.

Duke Energy has certain lease agreements, which include variable lease payments that are based on the usage of an asset. These variable lease payments are not included in the measurement of the ROU assets or operating lease liabilities on the Consolidated Financial Statements.

Certain Duke Energy lease agreements include options for renewal and early termination. The intent to renew a lease varies depending on the lease type and asset. Renewal options that are reasonably certain to be exercised are included in the lease measurements. The decision to terminate a lease early is dependent on various economic factors. No termination options have been included in any of the lease measurements.

Duke Energy Carolinas entered into a sale-leaseback arrangement in December 2019, to construct and occupy an office tower. The lease agreement was evaluated as a sale-leaseback of real estate and it was determined that the transaction did not qualify for sale-leaseback accounting. As a result, the transaction is being accounted for as a financing. For this transaction, Duke Energy Carolinas will continue to record the real estate on the Consolidated Balance Sheets within Property, Plant and Equipment as if it were the legal owner and will continue to recognize depreciation expense over the estimated useful life. In addition, the failed sale-leaseback obligation is reported within Long-Term Debt on the Consolidated Balance Sheets, with the monthly lease payments commencing after the construction phase being split between interest expense and principal pay down of the debt.

Duke Energy operates various renewable energy projects and sells the generated output to utilities, electric cooperatives, municipalities and commercial and industrial customers through long-term PPAs. In certain situations, these PPAs and the associated renewable energy projects qualify as operating leases. Rental income from these leases is accounted for as Nonregulated electric and other revenues in the Consolidated Statements of Operations. There are no minimum lease payments as all payments are contingent based on actual electricity generated by the renewable energy projects. Contingent lease payments were $259 million, $275 million and $264 million for the years ended December 31, 2021, 2020, and 2019, respectively. Renewable energy projects owned by Duke Energy and accounted for as operating leases had a cost basis of $3,339 million and $3,335 million and accumulated depreciation of $966 million and $848 million at December 31, 2021, and 2020, respectively. These assets are principally classified as nonregulated electric generation and transmission assets.

Piedmont has certain agreements with Duke Energy Carolinas for the construction and transportation of natural gas pipelines to supply its natural gas plant needs. Piedmont accounts for these pipeline lateral contracts as sales-type leases since the present value of the sum of the lease payments equals the fair value of the assets. These pipeline lateral assets owned by Piedmont had a current net investment basis of $2 million as of December 31, 2021, and 2020, and a long-term net investment basis of $203 million and $205 million as of December 31, 2021, and 2020, respectively. These assets are classified in Other, within Current Assets and Other Noncurrent Assets, respectively, on Piedmont's Consolidated Balance Sheets. Duke Energy Carolinas accounts for the contracts as finance leases. The activity for these contracts is eliminated in consolidation at Duke Energy.

The following tables present the components of lease expense.

	Year Ended December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Operating lease expense(a)	$	250	$	43	$	155	$	83	$	72	$	11	$	18	$	7
Short-term lease expense(a)	5		—		2		1		1		—		2		—
Variable lease expense(a)	41		17		22		10		12		—		—		1
Finance lease expense
Amortization of leased assets(b)	219		5		37		18		19		—		1		—
Interest on lease liabilities(c)	55		33		48		42		6		—		—		—
Total finance lease expense	274		38		85		60		25		—		1		—
Total lease expense	$	570	$	98	$	264	$	154	$	110	$	11	$	21	$	8

(a)    Included in Operations, maintenance and other or, for barges and railcars, Fuel used in electric generation and purchased power on the Consolidated Statements of Operations.

(b)    Included in Depreciation and amortization on the Consolidated Statements of Operations.

(c)    Included in Interest Expense on the Consolidated Statements of Operations.

	Year Ended December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Operating lease expense(a)	$	283	$	53	$	162	$	72	$	90	$	11	$	19	$	7
Short-term lease expense(a)	4		—		2		1		1		—		1		—
Variable lease expense(a)	30		13		13		5		8		—		1		1
Finance lease expense
Amortization of leased assets(b)	119		8		24		6		18		—		1		—
Interest on lease liabilities(c)	61		30		44		37		7		—		—		—
Total finance lease expense	180		38		68		43		25		—		1		—
Total lease expense	$	497	$	104	$	245	$	121	$	124	$	11	$	22	$	8

(a)    Included in Operations, maintenance and other or, for barges and railcars, Fuel used in electric generation and purchased power on the Consolidated Statements of Operations.

(b)    Included in Depreciation and amortization on the Consolidated Statements of Operations.

(c)    Included in Interest Expense on the Consolidated Statements of Operations.

The following table presents operating lease maturities and a reconciliation of the undiscounted cash flows to operating lease liabilities.

	December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
2022	$	225	$	24	$	118	$	63	$	55	$	2	$	6	$	5
2023	212		21		118		64		54		2		6		5
2024	185		14		110		56		54		2		4		5
2025	156		10		96		42		54		2		4		5
2026	136		10		92		38		54		2		4		—
Thereafter	594		42		290		220		70		16		50		—
Total operating lease payments	1,508		121		824		483		341		26		74		20
Less: present value discount	(247)		(21)		(124)		(83)		(41)		(7)		(20)		(1)
Total operating lease liabilities(a)	$	1,261	$	100	$	700	$	400	$	300	$	19	$	54	$	19

(a)    Certain operating lease payments include renewal options that are reasonably certain to be exercised.

The following table presents finance lease maturities and a reconciliation of the undiscounted cash flows to finance lease liabilities.

	December 31, 2021
			Duke				Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Indiana
2022	$	201	$	38	$	111	$	86	$	25	$	1
2023	198		38		103		78		25		1
2024	143		38		88		79		9		1
2025	76		38		85		80		5		1
2026	77		38		86		81		5		1
Thereafter	658		464		637		636		1		24
Total finance lease payments	1,353		654		1,110		1,040		70		29
Less: amounts representing interest	(438)		(365)		(420)		(411)		(9)		(19)
Total finance lease liabilities	$	915	$	289	$	690	$	629	$	61	$	10

The following tables contain additional information related to leases.

		December 31, 2021
				Duke				Duke		Duke		Duke		Duke
		Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Classification	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Assets
Operating	Operating lease ROU assets, net	$	1,266	$	92	$	691	$	389	$	302	$	19	$	53	$	16
Finance	Net property, plant and equipment	950		302		729		627		102		—		7		—
Total lease assets		$	2,216	$	394	$	1,420	$	1,016	$	404	$	19	$	60	$	16
Liabilities
Current
Operating	Other current liabilities	$	187	$	22	$	94	$	50	$	44	$	1	$	4	$	5
Finance	Current maturities of long-term debt	151		6		61		41		20		—		—		—
Noncurrent
Operating	Operating lease liabilities	1,074		78		606		350		256		18		50		14
Finance	Long-Term Debt	764		283		629		588		41		—		10		—
Total lease liabilities		$	2,176	$	389	$	1,390	$	1,029	$	361	$	19	$	64	$	19

		December 31, 2020
				Duke				Duke		Duke		Duke		Duke
		Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Classification	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Assets
Operating	Operating lease ROU assets, net	$	1,524	$	110	$	690	$	346	$	344	$	20	$	55	$	20
Finance	Net property, plant and equipment	797		312		416		297		119		—		7		—
Total lease assets		$	2,321	$	422	$	1,106	$	643	$	463	$	20	$	62	$	20
Liabilities
Current
Operating	Other current liabilities	$	177	$	20	$	73	$	31	$	42	$	1	$	3	$	4
Finance	Current maturities of long-term debt	129		5		26		7		19		—		—		—
Noncurrent
Operating	Operating lease liabilities	1,340		97		623		323		300		20		53		19
Finance	Long-Term Debt	716		289		351		289		62		—		10		—
Total lease liabilities		$	2,362	$	411	$	1,073	$	650	$	423	$	21	$	66	$	23

	Year Ended December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Cash paid for amounts included in the measurement of lease liabilities(a)
Operating cash flows from operating leases	$	245	$	25	$	117	$	62	$	55	$	2	$	6	$	5
Operating cash flows from finance leases	55		33		48		42		6		—		—		—
Financing cash flows from finance leases	219		5		37		18		19		—		1		—
Lease assets obtained in exchange for new lease liabilities (non-cash)
Operating(b)	$	182	$	4	$	99	$	99	$	—	$	—	$	—	$	—
Finance	322		—		322		322		—		—		—		—

(a)    No amounts were classified as investing cash flows from operating leases for the year ended December 31, 2021.

(b)    Does not include ROU assets recorded as a result of the adoption of the new lease standard.

	Year Ended December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
(in millions)	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Cash paid for amounts included in the measurement of lease liabilities(a)
Operating cash flows from operating leases	$	271	$	31	$	124	$	52	$	72	$	2	$	6	$	5
Operating cash flows from finance leases	61		30		44		37		7		—		—		—
Financing cash flows from finance leases	119		8		24		6		18		—		1		—
Lease assets obtained in exchange for new lease liabilities (non-cash)
Operating(b)	$	116	$	17	$	—	$	—	$	—	$	—	$	1	$	—
Finance	125		125		—		—		—		—		—		—

(a)    No amounts were classified as investing cash flows from operating leases for the year ended December 31, 2020.

(b)    Does not include ROU assets recorded as a result of the adoption of the new lease standard.

	December 31, 2021
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Weighted average remaining lease term (years)
Operating leases	9		9		8		10		7		16		16		4
Finance leases	10		18		13		13		11		—		24		—
Weighted average discount rate(a)
Operating leases	3.6	%	3.5	%	3.6	%	3.4	%	3.8	%	4.2	%	4.1	%	3.6	%
Finance leases	7.3	%	11.6	%	9.0	%	9.0	%	8.2	%	—	%	11.9	%	—	%

(a)    The discount rate is calculated using the rate implicit in a lease if it is readily determinable. Generally, the rate used by the lessor is not provided to Duke Energy and in these cases the incremental borrowing rate is used. Duke Energy will typically use its fully collateralized incremental borrowing rate as of the commencement date to calculate and record the lease. The incremental borrowing rate is influenced by the lessee’s credit rating and lease term and as such may differ for individual leases, embedded leases or portfolios of leased assets.

	December 31, 2020
			Duke				Duke		Duke		Duke		Duke
	Duke		Energy		Progress		Energy		Energy		Energy		Energy
	Energy		Carolinas		Energy		Progress		Florida		Ohio		Indiana		Piedmont
Weighted average remaining lease term (years)
Operating leases	10		9		10		12		8		17		18		5
Finance leases	13		19		15		17		11		—		25		—
Weighted average discount rate(a)
Operating leases	3.8	%	3.4	%	3.8	%	3.9	%	3.8	%	4.2	%	4.2	%	3.6	%
Finance leases	8.4	%	11.6	%	11.9	%	12.4	%	8.2	%	—	%	11.9	%	—	%

(a)    The discount rate is calculated using the rate implicit in a lease if it is readily determinable. Generally, the rate used by the lessor is not provided to Duke Energy and in these cases the incremental borrowing rate is used. Duke Energy will typically use its fully collateralized incremental borrowing rate as of the commencement date to calculate and record the lease. The incremental borrowing rate is influenced by the lessee’s credit rating and lease term and as such may differ for individual leases, embedded leases or portfolios of leased assets.