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Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2017
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2017 and 2016 by Entergy were as follows:
 
Liabilities as
of December 31,
2016
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Dispositions
 
Liabilities as
of December 31,
2017
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$924.4

 

$56.8

 

$—

 

$—

 

$—

 

$981.2

Entergy Louisiana
1,082.7

 
57.8

 

 

 

 
1,140.5

Entergy Mississippi
8.7

 
0.5

 

 

 

 
9.2

Entergy New Orleans
2.9

 
0.2

 

 

 

 
3.1

Entergy Texas
6.5

 
0.3

 

 

 

 
6.8

System Energy
854.2

 
43.4

 
(35.9
)
 

 

 
861.7

Total
2,879.4

 
159.0

 
(35.9
)
 

 

 
3,002.5

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 
 
 
 
 
 
 
 
 
Big Rock Point
37.9

 
3.1

 

 
(2.1
)
 

 
38.9

FitzPatrick
714.3

(a)
13.9

 

 
(0.9
)
 
(727.3
)
(b)

Indian Point 1
207.6

 
17.7

 

 
(7.7
)
 

 
217.6

Indian Point 2
653.1

 
55.8

 

 
(0.2
)
 

 
708.7

Indian Point 3
641.1

 
53.5

 

 
(0.1
)
 

 
694.5

Palisades
500.3

 
41.3

 
(68.7
)
 
(2.5
)
 

 
470.4

Pilgrim
602.3

 
52.8

 

 
(3.7
)
 

 
651.4

Vermont Yankee
470.5

 
34.4

 

 
(103.4
)
 

 
401.5

Other (c)
0.3

 

 

 

 

 
0.3

Total
3,827.4

 
272.5

 
(68.7
)
 
(120.6
)
 
(727.3
)
 
3,183.3

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$6,706.8

 

$431.5

 

($104.6
)
 

($120.6
)
 

($727.3
)
 

$6,185.8





 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
of December 31,
2016
 
 
(In Millions)
 
Utility:
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

 
Entergy Louisiana
1,027.9

 

 
54.8

 

 

 
1,082.7

 
Entergy Mississippi
8.3

 

 
0.4

 

 

 
8.7

 
Entergy New Orleans
2.7

 

 
0.2

 

 

 
2.9

 
Entergy Texas
6.1

 

 
0.4

 

 

 
6.5

 
System Energy
803.4

 

 
50.8

 

 

 
854.2

 
Total
2,720.7

 

 
160.2

 

 
(1.5
)
 
2,879.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 


 


 


 


 
Big Rock Point
28.0

 

 
2.2

 
10.1

 
(2.4
)
 
37.9

 
FitzPatrick

(d)
696.2

 
18.1

 

 

 
714.3

(a)
Indian Point 1
197.9

 

 
17.1

 
(0.3
)
 
(7.1
)
 
207.6

 
Indian Point 2
390.1

 

 
33.0

 
230.0

 

 
653.1

 
Indian Point 3

(d)
466.3

 
12.1

 
162.7

 

 
641.1

 
Palisades
342.0

 

 
29.5

 
128.8

 

 
500.3

 
Pilgrim
551.2

 

 
48.4

 
3.2

 
(0.5
)
 
602.3

 
Vermont Yankee
560.0

 

 
39.3

 

 
(128.8
)
 
470.5

 
Other (c)
0.3

 

 

 

 

 
0.3

 
Total
2,069.5

 
1,162.5

 
199.7

 
534.5

 
(138.8
)
 
3,827.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$4,790.2

 

$1,162.5

 

$359.9

 

$534.5

 

($140.3
)
 

$6,706.8

 

(a)
The FitzPatrick asset retirement obligation was classified as held for sale within other non-current liabilities on the consolidated balance sheet as of December 31, 2016. See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(b)
See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
(d)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.

Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2017 and 2016 are as follows:
 
2017
 
2016
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$944.9

 
$337.9
 

$834.7

 

$316.3

River Bend

$818.2

 
($30.6)
 

$712.8

 

($28.4
)
Waterford 3

$493.9

 
$188.9
 

$427.9

 

$172.8

Grand Gulf

$905.7

 
$169.1
 

$780.5

 

$142.5

Entergy Wholesale Commodities

$4,049.3

 
$—
 

$2,968.0

 

$—

Entergy Arkansas [Member]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2017
 
2016
 
(In Millions)
Entergy Arkansas
$176.9
 
$128.5
Entergy Louisiana
($32.4)
 
($53.9)
Entergy Mississippi
$91.6
 
$82.0
Entergy New Orleans
$44.8
 
$40.1
Entergy Texas
$55.2
 
$33.5
System Energy
$67.9
 
$69.7
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2017 and 2016 by Entergy were as follows:
 
Liabilities as
of December 31,
2016
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Dispositions
 
Liabilities as
of December 31,
2017
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$924.4

 

$56.8

 

$—

 

$—

 

$—

 

$981.2

Entergy Louisiana
1,082.7

 
57.8

 

 

 

 
1,140.5

Entergy Mississippi
8.7

 
0.5

 

 

 

 
9.2

Entergy New Orleans
2.9

 
0.2

 

 

 

 
3.1

Entergy Texas
6.5

 
0.3

 

 

 

 
6.8

System Energy
854.2

 
43.4

 
(35.9
)
 

 

 
861.7

Total
2,879.4

 
159.0

 
(35.9
)
 

 

 
3,002.5

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 
 
 
 
 
 
 
 
 
Big Rock Point
37.9

 
3.1

 

 
(2.1
)
 

 
38.9

FitzPatrick
714.3

(a)
13.9

 

 
(0.9
)
 
(727.3
)
(b)

Indian Point 1
207.6

 
17.7

 

 
(7.7
)
 

 
217.6

Indian Point 2
653.1

 
55.8

 

 
(0.2
)
 

 
708.7

Indian Point 3
641.1

 
53.5

 

 
(0.1
)
 

 
694.5

Palisades
500.3

 
41.3

 
(68.7
)
 
(2.5
)
 

 
470.4

Pilgrim
602.3

 
52.8

 

 
(3.7
)
 

 
651.4

Vermont Yankee
470.5

 
34.4

 

 
(103.4
)
 

 
401.5

Other (c)
0.3

 

 

 

 

 
0.3

Total
3,827.4

 
272.5

 
(68.7
)
 
(120.6
)
 
(727.3
)
 
3,183.3

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$6,706.8

 

$431.5

 

($104.6
)
 

($120.6
)
 

($727.3
)
 

$6,185.8





 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
of December 31,
2016
 
 
(In Millions)
 
Utility:
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

 
Entergy Louisiana
1,027.9

 

 
54.8

 

 

 
1,082.7

 
Entergy Mississippi
8.3

 

 
0.4

 

 

 
8.7

 
Entergy New Orleans
2.7

 

 
0.2

 

 

 
2.9

 
Entergy Texas
6.1

 

 
0.4

 

 

 
6.5

 
System Energy
803.4

 

 
50.8

 

 

 
854.2

 
Total
2,720.7

 

 
160.2

 

 
(1.5
)
 
2,879.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 


 


 


 


 
Big Rock Point
28.0

 

 
2.2

 
10.1

 
(2.4
)
 
37.9

 
FitzPatrick

(d)
696.2

 
18.1

 

 

 
714.3

(a)
Indian Point 1
197.9

 

 
17.1

 
(0.3
)
 
(7.1
)
 
207.6

 
Indian Point 2
390.1

 

 
33.0

 
230.0

 

 
653.1

 
Indian Point 3

(d)
466.3

 
12.1

 
162.7

 

 
641.1

 
Palisades
342.0

 

 
29.5

 
128.8

 

 
500.3

 
Pilgrim
551.2

 

 
48.4

 
3.2

 
(0.5
)
 
602.3

 
Vermont Yankee
560.0

 

 
39.3

 

 
(128.8
)
 
470.5

 
Other (c)
0.3

 

 

 

 

 
0.3

 
Total
2,069.5

 
1,162.5

 
199.7

 
534.5

 
(138.8
)
 
3,827.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$4,790.2

 

$1,162.5

 

$359.9

 

$534.5

 

($140.3
)
 

$6,706.8

 

(a)
The FitzPatrick asset retirement obligation was classified as held for sale within other non-current liabilities on the consolidated balance sheet as of December 31, 2016. See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(b)
See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
(d)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.

Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2017 and 2016 are as follows:
 
2017
 
2016
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$944.9

 
$337.9
 

$834.7

 

$316.3

River Bend

$818.2

 
($30.6)
 

$712.8

 

($28.4
)
Waterford 3

$493.9

 
$188.9
 

$427.9

 

$172.8

Grand Gulf

$905.7

 
$169.1
 

$780.5

 

$142.5

Entergy Wholesale Commodities

$4,049.3

 
$—
 

$2,968.0

 

$—

Entergy Louisiana [Member]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2017
 
2016
 
(In Millions)
Entergy Arkansas
$176.9
 
$128.5
Entergy Louisiana
($32.4)
 
($53.9)
Entergy Mississippi
$91.6
 
$82.0
Entergy New Orleans
$44.8
 
$40.1
Entergy Texas
$55.2
 
$33.5
System Energy
$67.9
 
$69.7
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2017 and 2016 by Entergy were as follows:
 
Liabilities as
of December 31,
2016
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Dispositions
 
Liabilities as
of December 31,
2017
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$924.4

 

$56.8

 

$—

 

$—

 

$—

 

$981.2

Entergy Louisiana
1,082.7

 
57.8

 

 

 

 
1,140.5

Entergy Mississippi
8.7

 
0.5

 

 

 

 
9.2

Entergy New Orleans
2.9

 
0.2

 

 

 

 
3.1

Entergy Texas
6.5

 
0.3

 

 

 

 
6.8

System Energy
854.2

 
43.4

 
(35.9
)
 

 

 
861.7

Total
2,879.4

 
159.0

 
(35.9
)
 

 

 
3,002.5

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 
 
 
 
 
 
 
 
 
Big Rock Point
37.9

 
3.1

 

 
(2.1
)
 

 
38.9

FitzPatrick
714.3

(a)
13.9

 

 
(0.9
)
 
(727.3
)
(b)

Indian Point 1
207.6

 
17.7

 

 
(7.7
)
 

 
217.6

Indian Point 2
653.1

 
55.8

 

 
(0.2
)
 

 
708.7

Indian Point 3
641.1

 
53.5

 

 
(0.1
)
 

 
694.5

Palisades
500.3

 
41.3

 
(68.7
)
 
(2.5
)
 

 
470.4

Pilgrim
602.3

 
52.8

 

 
(3.7
)
 

 
651.4

Vermont Yankee
470.5

 
34.4

 

 
(103.4
)
 

 
401.5

Other (c)
0.3

 

 

 

 

 
0.3

Total
3,827.4

 
272.5

 
(68.7
)
 
(120.6
)
 
(727.3
)
 
3,183.3

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$6,706.8

 

$431.5

 

($104.6
)
 

($120.6
)
 

($727.3
)
 

$6,185.8





 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
of December 31,
2016
 
 
(In Millions)
 
Utility:
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

 
Entergy Louisiana
1,027.9

 

 
54.8

 

 

 
1,082.7

 
Entergy Mississippi
8.3

 

 
0.4

 

 

 
8.7

 
Entergy New Orleans
2.7

 

 
0.2

 

 

 
2.9

 
Entergy Texas
6.1

 

 
0.4

 

 

 
6.5

 
System Energy
803.4

 

 
50.8

 

 

 
854.2

 
Total
2,720.7

 

 
160.2

 

 
(1.5
)
 
2,879.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 


 


 


 


 
Big Rock Point
28.0

 

 
2.2

 
10.1

 
(2.4
)
 
37.9

 
FitzPatrick

(d)
696.2

 
18.1

 

 

 
714.3

(a)
Indian Point 1
197.9

 

 
17.1

 
(0.3
)
 
(7.1
)
 
207.6

 
Indian Point 2
390.1

 

 
33.0

 
230.0

 

 
653.1

 
Indian Point 3

(d)
466.3

 
12.1

 
162.7

 

 
641.1

 
Palisades
342.0

 

 
29.5

 
128.8

 

 
500.3

 
Pilgrim
551.2

 

 
48.4

 
3.2

 
(0.5
)
 
602.3

 
Vermont Yankee
560.0

 

 
39.3

 

 
(128.8
)
 
470.5

 
Other (c)
0.3

 

 

 

 

 
0.3

 
Total
2,069.5

 
1,162.5

 
199.7

 
534.5

 
(138.8
)
 
3,827.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$4,790.2

 

$1,162.5

 

$359.9

 

$534.5

 

($140.3
)
 

$6,706.8

 

(a)
The FitzPatrick asset retirement obligation was classified as held for sale within other non-current liabilities on the consolidated balance sheet as of December 31, 2016. See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(b)
See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
(d)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2017 and 2016 are as follows:
 
2017
 
2016
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$944.9

 
$337.9
 

$834.7

 

$316.3

River Bend

$818.2

 
($30.6)
 

$712.8

 

($28.4
)
Waterford 3

$493.9

 
$188.9
 

$427.9

 

$172.8

Grand Gulf

$905.7

 
$169.1
 

$780.5

 

$142.5

Entergy Wholesale Commodities

$4,049.3

 
$—
 

$2,968.0

 

$—

Entergy Mississippi [Member]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2017
 
2016
 
(In Millions)
Entergy Arkansas
$176.9
 
$128.5
Entergy Louisiana
($32.4)
 
($53.9)
Entergy Mississippi
$91.6
 
$82.0
Entergy New Orleans
$44.8
 
$40.1
Entergy Texas
$55.2
 
$33.5
System Energy
$67.9
 
$69.7
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2017 and 2016 by Entergy were as follows:
 
Liabilities as
of December 31,
2016
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Dispositions
 
Liabilities as
of December 31,
2017
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$924.4

 

$56.8

 

$—

 

$—

 

$—

 

$981.2

Entergy Louisiana
1,082.7

 
57.8

 

 

 

 
1,140.5

Entergy Mississippi
8.7

 
0.5

 

 

 

 
9.2

Entergy New Orleans
2.9

 
0.2

 

 

 

 
3.1

Entergy Texas
6.5

 
0.3

 

 

 

 
6.8

System Energy
854.2

 
43.4

 
(35.9
)
 

 

 
861.7

Total
2,879.4

 
159.0

 
(35.9
)
 

 

 
3,002.5

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 
 
 
 
 
 
 
 
 
Big Rock Point
37.9

 
3.1

 

 
(2.1
)
 

 
38.9

FitzPatrick
714.3

(a)
13.9

 

 
(0.9
)
 
(727.3
)
(b)

Indian Point 1
207.6

 
17.7

 

 
(7.7
)
 

 
217.6

Indian Point 2
653.1

 
55.8

 

 
(0.2
)
 

 
708.7

Indian Point 3
641.1

 
53.5

 

 
(0.1
)
 

 
694.5

Palisades
500.3

 
41.3

 
(68.7
)
 
(2.5
)
 

 
470.4

Pilgrim
602.3

 
52.8

 

 
(3.7
)
 

 
651.4

Vermont Yankee
470.5

 
34.4

 

 
(103.4
)
 

 
401.5

Other (c)
0.3

 

 

 

 

 
0.3

Total
3,827.4

 
272.5

 
(68.7
)
 
(120.6
)
 
(727.3
)
 
3,183.3

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$6,706.8

 

$431.5

 

($104.6
)
 

($120.6
)
 

($727.3
)
 

$6,185.8





 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
of December 31,
2016
 
 
(In Millions)
 
Utility:
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

 
Entergy Louisiana
1,027.9

 

 
54.8

 

 

 
1,082.7

 
Entergy Mississippi
8.3

 

 
0.4

 

 

 
8.7

 
Entergy New Orleans
2.7

 

 
0.2

 

 

 
2.9

 
Entergy Texas
6.1

 

 
0.4

 

 

 
6.5

 
System Energy
803.4

 

 
50.8

 

 

 
854.2

 
Total
2,720.7

 

 
160.2

 

 
(1.5
)
 
2,879.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 


 


 


 


 
Big Rock Point
28.0

 

 
2.2

 
10.1

 
(2.4
)
 
37.9

 
FitzPatrick

(d)
696.2

 
18.1

 

 

 
714.3

(a)
Indian Point 1
197.9

 

 
17.1

 
(0.3
)
 
(7.1
)
 
207.6

 
Indian Point 2
390.1

 

 
33.0

 
230.0

 

 
653.1

 
Indian Point 3

(d)
466.3

 
12.1

 
162.7

 

 
641.1

 
Palisades
342.0

 

 
29.5

 
128.8

 

 
500.3

 
Pilgrim
551.2

 

 
48.4

 
3.2

 
(0.5
)
 
602.3

 
Vermont Yankee
560.0

 

 
39.3

 

 
(128.8
)
 
470.5

 
Other (c)
0.3

 

 

 

 

 
0.3

 
Total
2,069.5

 
1,162.5

 
199.7

 
534.5

 
(138.8
)
 
3,827.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$4,790.2

 

$1,162.5

 

$359.9

 

$534.5

 

($140.3
)
 

$6,706.8

 

(a)
The FitzPatrick asset retirement obligation was classified as held for sale within other non-current liabilities on the consolidated balance sheet as of December 31, 2016. See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(b)
See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
(d)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
Entergy New Orleans [Member]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2017
 
2016
 
(In Millions)
Entergy Arkansas
$176.9
 
$128.5
Entergy Louisiana
($32.4)
 
($53.9)
Entergy Mississippi
$91.6
 
$82.0
Entergy New Orleans
$44.8
 
$40.1
Entergy Texas
$55.2
 
$33.5
System Energy
$67.9
 
$69.7
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2017 and 2016 by Entergy were as follows:
 
Liabilities as
of December 31,
2016
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Dispositions
 
Liabilities as
of December 31,
2017
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$924.4

 

$56.8

 

$—

 

$—

 

$—

 

$981.2

Entergy Louisiana
1,082.7

 
57.8

 

 

 

 
1,140.5

Entergy Mississippi
8.7

 
0.5

 

 

 

 
9.2

Entergy New Orleans
2.9

 
0.2

 

 

 

 
3.1

Entergy Texas
6.5

 
0.3

 

 

 

 
6.8

System Energy
854.2

 
43.4

 
(35.9
)
 

 

 
861.7

Total
2,879.4

 
159.0

 
(35.9
)
 

 

 
3,002.5

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 
 
 
 
 
 
 
 
 
Big Rock Point
37.9

 
3.1

 

 
(2.1
)
 

 
38.9

FitzPatrick
714.3

(a)
13.9

 

 
(0.9
)
 
(727.3
)
(b)

Indian Point 1
207.6

 
17.7

 

 
(7.7
)
 

 
217.6

Indian Point 2
653.1

 
55.8

 

 
(0.2
)
 

 
708.7

Indian Point 3
641.1

 
53.5

 

 
(0.1
)
 

 
694.5

Palisades
500.3

 
41.3

 
(68.7
)
 
(2.5
)
 

 
470.4

Pilgrim
602.3

 
52.8

 

 
(3.7
)
 

 
651.4

Vermont Yankee
470.5

 
34.4

 

 
(103.4
)
 

 
401.5

Other (c)
0.3

 

 

 

 

 
0.3

Total
3,827.4

 
272.5

 
(68.7
)
 
(120.6
)
 
(727.3
)
 
3,183.3

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$6,706.8

 

$431.5

 

($104.6
)
 

($120.6
)
 

($727.3
)
 

$6,185.8





 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
of December 31,
2016
 
 
(In Millions)
 
Utility:
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

 
Entergy Louisiana
1,027.9

 

 
54.8

 

 

 
1,082.7

 
Entergy Mississippi
8.3

 

 
0.4

 

 

 
8.7

 
Entergy New Orleans
2.7

 

 
0.2

 

 

 
2.9

 
Entergy Texas
6.1

 

 
0.4

 

 

 
6.5

 
System Energy
803.4

 

 
50.8

 

 

 
854.2

 
Total
2,720.7

 

 
160.2

 

 
(1.5
)
 
2,879.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 


 


 


 


 
Big Rock Point
28.0

 

 
2.2

 
10.1

 
(2.4
)
 
37.9

 
FitzPatrick

(d)
696.2

 
18.1

 

 

 
714.3

(a)
Indian Point 1
197.9

 

 
17.1

 
(0.3
)
 
(7.1
)
 
207.6

 
Indian Point 2
390.1

 

 
33.0

 
230.0

 

 
653.1

 
Indian Point 3

(d)
466.3

 
12.1

 
162.7

 

 
641.1

 
Palisades
342.0

 

 
29.5

 
128.8

 

 
500.3

 
Pilgrim
551.2

 

 
48.4

 
3.2

 
(0.5
)
 
602.3

 
Vermont Yankee
560.0

 

 
39.3

 

 
(128.8
)
 
470.5

 
Other (c)
0.3

 

 

 

 

 
0.3

 
Total
2,069.5

 
1,162.5

 
199.7

 
534.5

 
(138.8
)
 
3,827.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$4,790.2

 

$1,162.5

 

$359.9

 

$534.5

 

($140.3
)
 

$6,706.8

 

(a)
The FitzPatrick asset retirement obligation was classified as held for sale within other non-current liabilities on the consolidated balance sheet as of December 31, 2016. See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(b)
See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
(d)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
Entergy Texas [Member]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2017
 
2016
 
(In Millions)
Entergy Arkansas
$176.9
 
$128.5
Entergy Louisiana
($32.4)
 
($53.9)
Entergy Mississippi
$91.6
 
$82.0
Entergy New Orleans
$44.8
 
$40.1
Entergy Texas
$55.2
 
$33.5
System Energy
$67.9
 
$69.7
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2017 and 2016 by Entergy were as follows:
 
Liabilities as
of December 31,
2016
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Dispositions
 
Liabilities as
of December 31,
2017
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$924.4

 

$56.8

 

$—

 

$—

 

$—

 

$981.2

Entergy Louisiana
1,082.7

 
57.8

 

 

 

 
1,140.5

Entergy Mississippi
8.7

 
0.5

 

 

 

 
9.2

Entergy New Orleans
2.9

 
0.2

 

 

 

 
3.1

Entergy Texas
6.5

 
0.3

 

 

 

 
6.8

System Energy
854.2

 
43.4

 
(35.9
)
 

 

 
861.7

Total
2,879.4

 
159.0

 
(35.9
)
 

 

 
3,002.5

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 
 
 
 
 
 
 
 
 
Big Rock Point
37.9

 
3.1

 

 
(2.1
)
 

 
38.9

FitzPatrick
714.3

(a)
13.9

 

 
(0.9
)
 
(727.3
)
(b)

Indian Point 1
207.6

 
17.7

 

 
(7.7
)
 

 
217.6

Indian Point 2
653.1

 
55.8

 

 
(0.2
)
 

 
708.7

Indian Point 3
641.1

 
53.5

 

 
(0.1
)
 

 
694.5

Palisades
500.3

 
41.3

 
(68.7
)
 
(2.5
)
 

 
470.4

Pilgrim
602.3

 
52.8

 

 
(3.7
)
 

 
651.4

Vermont Yankee
470.5

 
34.4

 

 
(103.4
)
 

 
401.5

Other (c)
0.3

 

 

 

 

 
0.3

Total
3,827.4

 
272.5

 
(68.7
)
 
(120.6
)
 
(727.3
)
 
3,183.3

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$6,706.8

 

$431.5

 

($104.6
)
 

($120.6
)
 

($727.3
)
 

$6,185.8





 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
of December 31,
2016
 
 
(In Millions)
 
Utility:
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

 
Entergy Louisiana
1,027.9

 

 
54.8

 

 

 
1,082.7

 
Entergy Mississippi
8.3

 

 
0.4

 

 

 
8.7

 
Entergy New Orleans
2.7

 

 
0.2

 

 

 
2.9

 
Entergy Texas
6.1

 

 
0.4

 

 

 
6.5

 
System Energy
803.4

 

 
50.8

 

 

 
854.2

 
Total
2,720.7

 

 
160.2

 

 
(1.5
)
 
2,879.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 


 


 


 


 
Big Rock Point
28.0

 

 
2.2

 
10.1

 
(2.4
)
 
37.9

 
FitzPatrick

(d)
696.2

 
18.1

 

 

 
714.3

(a)
Indian Point 1
197.9

 

 
17.1

 
(0.3
)
 
(7.1
)
 
207.6

 
Indian Point 2
390.1

 

 
33.0

 
230.0

 

 
653.1

 
Indian Point 3

(d)
466.3

 
12.1

 
162.7

 

 
641.1

 
Palisades
342.0

 

 
29.5

 
128.8

 

 
500.3

 
Pilgrim
551.2

 

 
48.4

 
3.2

 
(0.5
)
 
602.3

 
Vermont Yankee
560.0

 

 
39.3

 

 
(128.8
)
 
470.5

 
Other (c)
0.3

 

 

 

 

 
0.3

 
Total
2,069.5

 
1,162.5

 
199.7

 
534.5

 
(138.8
)
 
3,827.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$4,790.2

 

$1,162.5

 

$359.9

 

$534.5

 

($140.3
)
 

$6,706.8

 

(a)
The FitzPatrick asset retirement obligation was classified as held for sale within other non-current liabilities on the consolidated balance sheet as of December 31, 2016. See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(b)
See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
(d)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
System Energy [Member]  
Difference Between Estimated Incurred Removal Costs And Estimated Removal Costs Recovered In Rates
In accordance with regulatory accounting principles, the Registrant Subsidiaries have recorded regulatory assets (liabilities) in the following amounts to reflect their estimates of the difference between estimated incurred removal costs and estimated removal costs recovered in rates:
 
December 31,
 
2017
 
2016
 
(In Millions)
Entergy Arkansas
$176.9
 
$128.5
Entergy Louisiana
($32.4)
 
($53.9)
Entergy Mississippi
$91.6
 
$82.0
Entergy New Orleans
$44.8
 
$40.1
Entergy Texas
$55.2
 
$33.5
System Energy
$67.9
 
$69.7
Cumulative decommissioning and retirement cost liabilities and expenses
The cumulative decommissioning and retirement cost liabilities and expenses recorded in 2017 and 2016 by Entergy were as follows:
 
Liabilities as
of December 31,
2016
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Dispositions
 
Liabilities as
of December 31,
2017
 
(In Millions)
Utility:
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$924.4

 

$56.8

 

$—

 

$—

 

$—

 

$981.2

Entergy Louisiana
1,082.7

 
57.8

 

 

 

 
1,140.5

Entergy Mississippi
8.7

 
0.5

 

 

 

 
9.2

Entergy New Orleans
2.9

 
0.2

 

 

 

 
3.1

Entergy Texas
6.5

 
0.3

 

 

 

 
6.8

System Energy
854.2

 
43.4

 
(35.9
)
 

 

 
861.7

Total
2,879.4

 
159.0

 
(35.9
)
 

 

 
3,002.5

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 
 
 
 
 
 
 
 
 
Big Rock Point
37.9

 
3.1

 

 
(2.1
)
 

 
38.9

FitzPatrick
714.3

(a)
13.9

 

 
(0.9
)
 
(727.3
)
(b)

Indian Point 1
207.6

 
17.7

 

 
(7.7
)
 

 
217.6

Indian Point 2
653.1

 
55.8

 

 
(0.2
)
 

 
708.7

Indian Point 3
641.1

 
53.5

 

 
(0.1
)
 

 
694.5

Palisades
500.3

 
41.3

 
(68.7
)
 
(2.5
)
 

 
470.4

Pilgrim
602.3

 
52.8

 

 
(3.7
)
 

 
651.4

Vermont Yankee
470.5

 
34.4

 

 
(103.4
)
 

 
401.5

Other (c)
0.3

 

 

 

 

 
0.3

Total
3,827.4

 
272.5

 
(68.7
)
 
(120.6
)
 
(727.3
)
 
3,183.3

 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$6,706.8

 

$431.5

 

($104.6
)
 

($120.6
)
 

($727.3
)
 

$6,185.8





 
Liabilities as
of December 31,
2015
 
Liabilities Incurred
 
 
 
Accretion
 
Change in
Cash Flow
Estimate
 
 
 
Spending
 
Liabilities as
of December 31,
2016
 
 
(In Millions)
 
Utility:
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Arkansas

$872.3

 

$—

 

$53.6

 

$—

 

($1.5
)
 

$924.4

 
Entergy Louisiana
1,027.9

 

 
54.8

 

 

 
1,082.7

 
Entergy Mississippi
8.3

 

 
0.4

 

 

 
8.7

 
Entergy New Orleans
2.7

 

 
0.2

 

 

 
2.9

 
Entergy Texas
6.1

 

 
0.4

 

 

 
6.5

 
System Energy
803.4

 

 
50.8

 

 

 
854.2

 
Total
2,720.7

 

 
160.2

 

 
(1.5
)
 
2,879.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Wholesale Commodities:
 


 


 


 


 
Big Rock Point
28.0

 

 
2.2

 
10.1

 
(2.4
)
 
37.9

 
FitzPatrick

(d)
696.2

 
18.1

 

 

 
714.3

(a)
Indian Point 1
197.9

 

 
17.1

 
(0.3
)
 
(7.1
)
 
207.6

 
Indian Point 2
390.1

 

 
33.0

 
230.0

 

 
653.1

 
Indian Point 3

(d)
466.3

 
12.1

 
162.7

 

 
641.1

 
Palisades
342.0

 

 
29.5

 
128.8

 

 
500.3

 
Pilgrim
551.2

 

 
48.4

 
3.2

 
(0.5
)
 
602.3

 
Vermont Yankee
560.0

 

 
39.3

 

 
(128.8
)
 
470.5

 
Other (c)
0.3

 

 

 

 

 
0.3

 
Total
2,069.5

 
1,162.5

 
199.7

 
534.5

 
(138.8
)
 
3,827.4

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Entergy Total

$4,790.2

 

$1,162.5

 

$359.9

 

$534.5

 

($140.3
)
 

$6,706.8

 

(a)
The FitzPatrick asset retirement obligation was classified as held for sale within other non-current liabilities on the consolidated balance sheet as of December 31, 2016. See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(b)
See Note 14 to the financial statements for discussion of the sale of the FitzPatrick plant to Exelon in March 2017.
(c)
See “Coal Combustion Residuals” below for additional discussion regarding the asset retirement obligations related to coal combustion residuals management.
(d)
See “Entergy Wholesale Commodities” in “Nuclear Plant Decommissioning” below for additional discussion regarding the decommissioning agreements with NYPA and the associated asset retirement obligations.
Fair Values Of Decommissioning Trust Funds And Related Asset Retirement Obligation Regulatory Assets
Entergy maintains decommissioning trust funds that are committed to meeting its obligations for the costs of decommissioning the nuclear power plants.  The fair values of the decommissioning trust funds and the related asset retirement obligation regulatory assets (liabilities) of Entergy as of December 31, 2017 and 2016 are as follows:
 
2017
 
2016
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
Decommissioning
Trust Fair Values
 
Regulatory
Asset (Liability)
 
(In Millions)
 
(In Millions)
Utility:
 
 
 
 
 
 
 
ANO 1 and ANO 2

$944.9

 
$337.9
 

$834.7

 

$316.3

River Bend

$818.2

 
($30.6)
 

$712.8

 

($28.4
)
Waterford 3

$493.9

 
$188.9
 

$427.9

 

$172.8

Grand Gulf

$905.7

 
$169.1
 

$780.5

 

$142.5

Entergy Wholesale Commodities

$4,049.3

 
$—
 

$2,968.0

 

$—