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Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Tables)
12 Months Ended
Dec. 31, 2017
Summary Of The Borrowings Outstanding And Capacity Available Under The Facility
Following is a summary of the borrowings outstanding and capacity available under the facility as of December 31, 2017.
Capacity
 
Borrowings
 
Letters of Credit
 
Capacity Available
(In Millions)
$3,500
 
$210
 
$6
 
$3,284

Credit Facilities
Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each had credit facilities available as of December 31, 2017 as follows:
Company
 
Expiration Date
 
Amount of Facility
 
Interest Rate (a)
 
 Amount Drawn as of December 31, 2017
 
Letters of Credit Outstanding as of December 31, 2017
Entergy Arkansas
 
April 2018
 
$20 million (b)
 
2.82%
 
 
Entergy Arkansas
 
August 2022
 
$150 million (c)
 
2.82%
 
 
Entergy Louisiana
 
August 2022
 
$350 million (c)
 
2.82%
 
 
$9.1 million
Entergy Mississippi
 
May 2018
 
$10 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$20 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$35 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$37.5 million (d)
 
3.07%
 
 
Entergy New Orleans
 
November 2018
 
$25 million (c)
 
3.04%
 
 
$0.8 million
Entergy Texas
 
August 2022
 
$150 million (c)
 
3.07%
 
 
$25.6 million

(a)
The interest rate is the estimated interest rate as of December 31, 2017 that would have been applied to outstanding borrowings under the facility.
(b)
Borrowings under this Entergy Arkansas credit facility may be secured by a security interest in its accounts receivable at Entergy Arkansas’s option.
(c)
The credit facility permits the issuance of letters of credit against a portion of the borrowing capacity of the facility as follows: $5 million for Entergy Arkansas; $15 million for Entergy Louisiana; $10 million for Entergy New Orleans; and $30 million for Entergy Texas.  
(d)
Borrowings under the Entergy Mississippi credit facilities may be secured by a security interest in its accounts receivable at Entergy Mississippi’s option. 

Uncommitted Standby Letter of Credit Facilities to Support MISO Obligations
In addition, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each entered into one or more uncommitted standby letter of credit facilities as a means to post collateral to support its obligations to MISO. Following is a summary of the uncommitted standby letter of credit facilities as of December 31, 2017:
Company
 
Amount of Uncommitted Facility
 
Letter of Credit Fee
 
Letters of Credit Issued as of December 31, 2017 (a)
Entergy Arkansas
 
$25 million
 
0.70%
 
$1.0 million
Entergy Louisiana
 
$125 million
 
0.70%
 
$29.7 million
Entergy Mississippi
 
$40 million
 
0.70%
 
$15.3 million
Entergy New Orleans
 
$15 million
 
1.00%
 
$1.4 million
Entergy Texas
 
$50 million
 
0.70%
 
$22.8 million


(a)
As of December 31, 2017, letters of credit posted with MISO covered financial transmission right exposure of $0.2 million for Entergy Arkansas, $0.1 million for Entergy Mississippi, and $0.05 million for Entergy Texas. See Note 15 to the financial statements for discussion of financial transmission rights.
Short-Term Borrowings And The Outstanding Short-Term Borrowings
The following are the FERC-authorized limits for short-term borrowings and the outstanding short-term borrowings as of December 31, 2017 (aggregating both internal and external short-term borrowings) for the Registrant Subsidiaries:

 
Authorized
 
Borrowings
 
(In Millions)
Entergy Arkansas
$250
 
$166
Entergy Louisiana
$450
 
Entergy Mississippi
$175
 
Entergy New Orleans
$150
 
Entergy Texas
$200
 
System Energy
$200
 
Issuance Of Commercial Paper To Finance Acquisition And Ownership Of Nuclear Fuel
To finance the acquisition and ownership of nuclear fuel, the nuclear fuel company VIEs have credit facilities and three of the four VIEs also issue commercial paper, details of which follow as of December 31, 2017:
Company
 
Expiration Date
 
Amount of Facility
 
Weighted Average Interest Rate on Borrowings (a)
 
Amount Outstanding as of December 31, 2017
 
 
(Dollars in Millions)
Entergy Arkansas VIE
 
May 2019
 
$80
 
2.87%
 

$74.9
 (b)
Entergy Louisiana River Bend VIE
 
May 2019
 
$105
 
2.38%
 

$65.7

Entergy Louisiana Waterford VIE
 
May 2019
 
$85
 
2.64%
 

$79.9
 (c)
System Energy VIE
 
May 2019
 
$120
 
2.52%
 

$67.8
 (d)


(a)
Includes letter of credit fees and bank fronting fees on commercial paper issuances by the nuclear fuel company variable interest entities for Entergy Arkansas, Entergy Louisiana, and System Energy. The nuclear fuel company variable interest entity for Entergy Louisiana River Bend does not issue commercial paper, but borrows directly on its bank credit facility.
(b)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Arkansas VIE as of December 31, 2017 was $50 million.
(c)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Louisiana Waterford VIE as of December 31, 2017 was $43.5 million.
(d)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for System Energy VIE as of December 31, 2017 was $17.8 million.
Notes Payable By Variable Interest Entities
The nuclear fuel company variable interest entities had notes payable that are included in debt on the respective balance sheets as of December 31, 2017 as follows:
Company
 
Description
 
Amount
Entergy Arkansas VIE
 
3.65% Series L due July 2021
 
$90 million
Entergy Arkansas VIE
 
3.17% Series M due December 2023
 
$40 million
Entergy Louisiana River Bend VIE
 
3.38% Series R due August 2020
 
$70 million
Entergy Louisiana Waterford VIE
 
3.92% Series H due February 2021
 
$40 million
Entergy Louisiana Waterford VIE
 
3.22% Series I due December 2023
 
$20 million
System Energy VIE
 
3.78% Series I due October 2018
 
$85 million
Entergy Arkansas [Member]  
Credit Facilities
Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each had credit facilities available as of December 31, 2017 as follows:
Company
 
Expiration Date
 
Amount of Facility
 
Interest Rate (a)
 
 Amount Drawn as of December 31, 2017
 
Letters of Credit Outstanding as of December 31, 2017
Entergy Arkansas
 
April 2018
 
$20 million (b)
 
2.82%
 
 
Entergy Arkansas
 
August 2022
 
$150 million (c)
 
2.82%
 
 
Entergy Louisiana
 
August 2022
 
$350 million (c)
 
2.82%
 
 
$9.1 million
Entergy Mississippi
 
May 2018
 
$10 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$20 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$35 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$37.5 million (d)
 
3.07%
 
 
Entergy New Orleans
 
November 2018
 
$25 million (c)
 
3.04%
 
 
$0.8 million
Entergy Texas
 
August 2022
 
$150 million (c)
 
3.07%
 
 
$25.6 million

(a)
The interest rate is the estimated interest rate as of December 31, 2017 that would have been applied to outstanding borrowings under the facility.
(b)
Borrowings under this Entergy Arkansas credit facility may be secured by a security interest in its accounts receivable at Entergy Arkansas’s option.
(c)
The credit facility permits the issuance of letters of credit against a portion of the borrowing capacity of the facility as follows: $5 million for Entergy Arkansas; $15 million for Entergy Louisiana; $10 million for Entergy New Orleans; and $30 million for Entergy Texas.  
(d)
Borrowings under the Entergy Mississippi credit facilities may be secured by a security interest in its accounts receivable at Entergy Mississippi’s option.
Uncommitted Standby Letter of Credit Facilities to Support MISO Obligations
In addition, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each entered into one or more uncommitted standby letter of credit facilities as a means to post collateral to support its obligations to MISO. Following is a summary of the uncommitted standby letter of credit facilities as of December 31, 2017:
Company
 
Amount of Uncommitted Facility
 
Letter of Credit Fee
 
Letters of Credit Issued as of December 31, 2017 (a)
Entergy Arkansas
 
$25 million
 
0.70%
 
$1.0 million
Entergy Louisiana
 
$125 million
 
0.70%
 
$29.7 million
Entergy Mississippi
 
$40 million
 
0.70%
 
$15.3 million
Entergy New Orleans
 
$15 million
 
1.00%
 
$1.4 million
Entergy Texas
 
$50 million
 
0.70%
 
$22.8 million


(a)
As of December 31, 2017, letters of credit posted with MISO covered financial transmission right exposure of $0.2 million for Entergy Arkansas, $0.1 million for Entergy Mississippi, and $0.05 million for Entergy Texas. See Note 15 to the financial statements for discussion of financial transmission rights.
Short-Term Borrowings And The Outstanding Short-Term Borrowings
The following are the FERC-authorized limits for short-term borrowings and the outstanding short-term borrowings as of December 31, 2017 (aggregating both internal and external short-term borrowings) for the Registrant Subsidiaries:

 
Authorized
 
Borrowings
 
(In Millions)
Entergy Arkansas
$250
 
$166
Entergy Louisiana
$450
 
Entergy Mississippi
$175
 
Entergy New Orleans
$150
 
Entergy Texas
$200
 
System Energy
$200
 
Issuance Of Commercial Paper To Finance Acquisition And Ownership Of Nuclear Fuel
To finance the acquisition and ownership of nuclear fuel, the nuclear fuel company VIEs have credit facilities and three of the four VIEs also issue commercial paper, details of which follow as of December 31, 2017:
Company
 
Expiration Date
 
Amount of Facility
 
Weighted Average Interest Rate on Borrowings (a)
 
Amount Outstanding as of December 31, 2017
 
 
(Dollars in Millions)
Entergy Arkansas VIE
 
May 2019
 
$80
 
2.87%
 

$74.9
 (b)
Entergy Louisiana River Bend VIE
 
May 2019
 
$105
 
2.38%
 

$65.7

Entergy Louisiana Waterford VIE
 
May 2019
 
$85
 
2.64%
 

$79.9
 (c)
System Energy VIE
 
May 2019
 
$120
 
2.52%
 

$67.8
 (d)


(a)
Includes letter of credit fees and bank fronting fees on commercial paper issuances by the nuclear fuel company variable interest entities for Entergy Arkansas, Entergy Louisiana, and System Energy. The nuclear fuel company variable interest entity for Entergy Louisiana River Bend does not issue commercial paper, but borrows directly on its bank credit facility.
(b)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Arkansas VIE as of December 31, 2017 was $50 million.
(c)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Louisiana Waterford VIE as of December 31, 2017 was $43.5 million.
(d)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for System Energy VIE as of December 31, 2017 was $17.8 million.
Notes Payable By Variable Interest Entities
The nuclear fuel company variable interest entities had notes payable that are included in debt on the respective balance sheets as of December 31, 2017 as follows:
Company
 
Description
 
Amount
Entergy Arkansas VIE
 
3.65% Series L due July 2021
 
$90 million
Entergy Arkansas VIE
 
3.17% Series M due December 2023
 
$40 million
Entergy Louisiana River Bend VIE
 
3.38% Series R due August 2020
 
$70 million
Entergy Louisiana Waterford VIE
 
3.92% Series H due February 2021
 
$40 million
Entergy Louisiana Waterford VIE
 
3.22% Series I due December 2023
 
$20 million
System Energy VIE
 
3.78% Series I due October 2018
 
$85 million
Entergy Louisiana [Member]  
Credit Facilities
Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each had credit facilities available as of December 31, 2017 as follows:
Company
 
Expiration Date
 
Amount of Facility
 
Interest Rate (a)
 
 Amount Drawn as of December 31, 2017
 
Letters of Credit Outstanding as of December 31, 2017
Entergy Arkansas
 
April 2018
 
$20 million (b)
 
2.82%
 
 
Entergy Arkansas
 
August 2022
 
$150 million (c)
 
2.82%
 
 
Entergy Louisiana
 
August 2022
 
$350 million (c)
 
2.82%
 
 
$9.1 million
Entergy Mississippi
 
May 2018
 
$10 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$20 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$35 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$37.5 million (d)
 
3.07%
 
 
Entergy New Orleans
 
November 2018
 
$25 million (c)
 
3.04%
 
 
$0.8 million
Entergy Texas
 
August 2022
 
$150 million (c)
 
3.07%
 
 
$25.6 million

(a)
The interest rate is the estimated interest rate as of December 31, 2017 that would have been applied to outstanding borrowings under the facility.
(b)
Borrowings under this Entergy Arkansas credit facility may be secured by a security interest in its accounts receivable at Entergy Arkansas’s option.
(c)
The credit facility permits the issuance of letters of credit against a portion of the borrowing capacity of the facility as follows: $5 million for Entergy Arkansas; $15 million for Entergy Louisiana; $10 million for Entergy New Orleans; and $30 million for Entergy Texas.  
(d)
Borrowings under the Entergy Mississippi credit facilities may be secured by a security interest in its accounts receivable at Entergy Mississippi’s option. 

Uncommitted Standby Letter of Credit Facilities to Support MISO Obligations
In addition, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each entered into one or more uncommitted standby letter of credit facilities as a means to post collateral to support its obligations to MISO. Following is a summary of the uncommitted standby letter of credit facilities as of December 31, 2017:
Company
 
Amount of Uncommitted Facility
 
Letter of Credit Fee
 
Letters of Credit Issued as of December 31, 2017 (a)
Entergy Arkansas
 
$25 million
 
0.70%
 
$1.0 million
Entergy Louisiana
 
$125 million
 
0.70%
 
$29.7 million
Entergy Mississippi
 
$40 million
 
0.70%
 
$15.3 million
Entergy New Orleans
 
$15 million
 
1.00%
 
$1.4 million
Entergy Texas
 
$50 million
 
0.70%
 
$22.8 million


(a)
As of December 31, 2017, letters of credit posted with MISO covered financial transmission right exposure of $0.2 million for Entergy Arkansas, $0.1 million for Entergy Mississippi, and $0.05 million for Entergy Texas. See Note 15 to the financial statements for discussion of financial transmission rights.

Short-Term Borrowings And The Outstanding Short-Term Borrowings
The following are the FERC-authorized limits for short-term borrowings and the outstanding short-term borrowings as of December 31, 2017 (aggregating both internal and external short-term borrowings) for the Registrant Subsidiaries:

 
Authorized
 
Borrowings
 
(In Millions)
Entergy Arkansas
$250
 
$166
Entergy Louisiana
$450
 
Entergy Mississippi
$175
 
Entergy New Orleans
$150
 
Entergy Texas
$200
 
System Energy
$200
 
Issuance Of Commercial Paper To Finance Acquisition And Ownership Of Nuclear Fuel
To finance the acquisition and ownership of nuclear fuel, the nuclear fuel company VIEs have credit facilities and three of the four VIEs also issue commercial paper, details of which follow as of December 31, 2017:
Company
 
Expiration Date
 
Amount of Facility
 
Weighted Average Interest Rate on Borrowings (a)
 
Amount Outstanding as of December 31, 2017
 
 
(Dollars in Millions)
Entergy Arkansas VIE
 
May 2019
 
$80
 
2.87%
 

$74.9
 (b)
Entergy Louisiana River Bend VIE
 
May 2019
 
$105
 
2.38%
 

$65.7

Entergy Louisiana Waterford VIE
 
May 2019
 
$85
 
2.64%
 

$79.9
 (c)
System Energy VIE
 
May 2019
 
$120
 
2.52%
 

$67.8
 (d)


(a)
Includes letter of credit fees and bank fronting fees on commercial paper issuances by the nuclear fuel company variable interest entities for Entergy Arkansas, Entergy Louisiana, and System Energy. The nuclear fuel company variable interest entity for Entergy Louisiana River Bend does not issue commercial paper, but borrows directly on its bank credit facility.
(b)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Arkansas VIE as of December 31, 2017 was $50 million.
(c)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Louisiana Waterford VIE as of December 31, 2017 was $43.5 million.
(d)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for System Energy VIE as of December 31, 2017 was $17.8 million.
Notes Payable By Variable Interest Entities
The nuclear fuel company variable interest entities had notes payable that are included in debt on the respective balance sheets as of December 31, 2017 as follows:
Company
 
Description
 
Amount
Entergy Arkansas VIE
 
3.65% Series L due July 2021
 
$90 million
Entergy Arkansas VIE
 
3.17% Series M due December 2023
 
$40 million
Entergy Louisiana River Bend VIE
 
3.38% Series R due August 2020
 
$70 million
Entergy Louisiana Waterford VIE
 
3.92% Series H due February 2021
 
$40 million
Entergy Louisiana Waterford VIE
 
3.22% Series I due December 2023
 
$20 million
System Energy VIE
 
3.78% Series I due October 2018
 
$85 million
Entergy Mississippi [Member]  
Credit Facilities
Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each had credit facilities available as of December 31, 2017 as follows:
Company
 
Expiration Date
 
Amount of Facility
 
Interest Rate (a)
 
 Amount Drawn as of December 31, 2017
 
Letters of Credit Outstanding as of December 31, 2017
Entergy Arkansas
 
April 2018
 
$20 million (b)
 
2.82%
 
 
Entergy Arkansas
 
August 2022
 
$150 million (c)
 
2.82%
 
 
Entergy Louisiana
 
August 2022
 
$350 million (c)
 
2.82%
 
 
$9.1 million
Entergy Mississippi
 
May 2018
 
$10 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$20 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$35 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$37.5 million (d)
 
3.07%
 
 
Entergy New Orleans
 
November 2018
 
$25 million (c)
 
3.04%
 
 
$0.8 million
Entergy Texas
 
August 2022
 
$150 million (c)
 
3.07%
 
 
$25.6 million

(a)
The interest rate is the estimated interest rate as of December 31, 2017 that would have been applied to outstanding borrowings under the facility.
(b)
Borrowings under this Entergy Arkansas credit facility may be secured by a security interest in its accounts receivable at Entergy Arkansas’s option.
(c)
The credit facility permits the issuance of letters of credit against a portion of the borrowing capacity of the facility as follows: $5 million for Entergy Arkansas; $15 million for Entergy Louisiana; $10 million for Entergy New Orleans; and $30 million for Entergy Texas.  
(d)
Borrowings under the Entergy Mississippi credit facilities may be secured by a security interest in its accounts receivable at Entergy Mississippi’s option.
Uncommitted Standby Letter of Credit Facilities to Support MISO Obligations
In addition, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each entered into one or more uncommitted standby letter of credit facilities as a means to post collateral to support its obligations to MISO. Following is a summary of the uncommitted standby letter of credit facilities as of December 31, 2017:
Company
 
Amount of Uncommitted Facility
 
Letter of Credit Fee
 
Letters of Credit Issued as of December 31, 2017 (a)
Entergy Arkansas
 
$25 million
 
0.70%
 
$1.0 million
Entergy Louisiana
 
$125 million
 
0.70%
 
$29.7 million
Entergy Mississippi
 
$40 million
 
0.70%
 
$15.3 million
Entergy New Orleans
 
$15 million
 
1.00%
 
$1.4 million
Entergy Texas
 
$50 million
 
0.70%
 
$22.8 million


(a)
As of December 31, 2017, letters of credit posted with MISO covered financial transmission right exposure of $0.2 million for Entergy Arkansas, $0.1 million for Entergy Mississippi, and $0.05 million for Entergy Texas. See Note 15 to the financial statements for discussion of financial transmission rights.
Short-Term Borrowings And The Outstanding Short-Term Borrowings
The following are the FERC-authorized limits for short-term borrowings and the outstanding short-term borrowings as of December 31, 2017 (aggregating both internal and external short-term borrowings) for the Registrant Subsidiaries:

 
Authorized
 
Borrowings
 
(In Millions)
Entergy Arkansas
$250
 
$166
Entergy Louisiana
$450
 
Entergy Mississippi
$175
 
Entergy New Orleans
$150
 
Entergy Texas
$200
 
System Energy
$200
 
Entergy New Orleans [Member]  
Credit Facilities
Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each had credit facilities available as of December 31, 2017 as follows:
Company
 
Expiration Date
 
Amount of Facility
 
Interest Rate (a)
 
 Amount Drawn as of December 31, 2017
 
Letters of Credit Outstanding as of December 31, 2017
Entergy Arkansas
 
April 2018
 
$20 million (b)
 
2.82%
 
 
Entergy Arkansas
 
August 2022
 
$150 million (c)
 
2.82%
 
 
Entergy Louisiana
 
August 2022
 
$350 million (c)
 
2.82%
 
 
$9.1 million
Entergy Mississippi
 
May 2018
 
$10 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$20 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$35 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$37.5 million (d)
 
3.07%
 
 
Entergy New Orleans
 
November 2018
 
$25 million (c)
 
3.04%
 
 
$0.8 million
Entergy Texas
 
August 2022
 
$150 million (c)
 
3.07%
 
 
$25.6 million

(a)
The interest rate is the estimated interest rate as of December 31, 2017 that would have been applied to outstanding borrowings under the facility.
(b)
Borrowings under this Entergy Arkansas credit facility may be secured by a security interest in its accounts receivable at Entergy Arkansas’s option.
(c)
The credit facility permits the issuance of letters of credit against a portion of the borrowing capacity of the facility as follows: $5 million for Entergy Arkansas; $15 million for Entergy Louisiana; $10 million for Entergy New Orleans; and $30 million for Entergy Texas.  
(d)
Borrowings under the Entergy Mississippi credit facilities may be secured by a security interest in its accounts receivable at Entergy Mississippi’s option.
Uncommitted Standby Letter of Credit Facilities to Support MISO Obligations
In addition, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each entered into one or more uncommitted standby letter of credit facilities as a means to post collateral to support its obligations to MISO. Following is a summary of the uncommitted standby letter of credit facilities as of December 31, 2017:
Company
 
Amount of Uncommitted Facility
 
Letter of Credit Fee
 
Letters of Credit Issued as of December 31, 2017 (a)
Entergy Arkansas
 
$25 million
 
0.70%
 
$1.0 million
Entergy Louisiana
 
$125 million
 
0.70%
 
$29.7 million
Entergy Mississippi
 
$40 million
 
0.70%
 
$15.3 million
Entergy New Orleans
 
$15 million
 
1.00%
 
$1.4 million
Entergy Texas
 
$50 million
 
0.70%
 
$22.8 million


(a)
As of December 31, 2017, letters of credit posted with MISO covered financial transmission right exposure of $0.2 million for Entergy Arkansas, $0.1 million for Entergy Mississippi, and $0.05 million for Entergy Texas. See Note 15 to the financial statements for discussion of financial transmission rights.
Short-Term Borrowings And The Outstanding Short-Term Borrowings
The following are the FERC-authorized limits for short-term borrowings and the outstanding short-term borrowings as of December 31, 2017 (aggregating both internal and external short-term borrowings) for the Registrant Subsidiaries:

 
Authorized
 
Borrowings
 
(In Millions)
Entergy Arkansas
$250
 
$166
Entergy Louisiana
$450
 
Entergy Mississippi
$175
 
Entergy New Orleans
$150
 
Entergy Texas
$200
 
System Energy
$200
 
Entergy Texas [Member]  
Credit Facilities
Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each had credit facilities available as of December 31, 2017 as follows:
Company
 
Expiration Date
 
Amount of Facility
 
Interest Rate (a)
 
 Amount Drawn as of December 31, 2017
 
Letters of Credit Outstanding as of December 31, 2017
Entergy Arkansas
 
April 2018
 
$20 million (b)
 
2.82%
 
 
Entergy Arkansas
 
August 2022
 
$150 million (c)
 
2.82%
 
 
Entergy Louisiana
 
August 2022
 
$350 million (c)
 
2.82%
 
 
$9.1 million
Entergy Mississippi
 
May 2018
 
$10 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$20 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$35 million (d)
 
3.07%
 
 
Entergy Mississippi
 
May 2018
 
$37.5 million (d)
 
3.07%
 
 
Entergy New Orleans
 
November 2018
 
$25 million (c)
 
3.04%
 
 
$0.8 million
Entergy Texas
 
August 2022
 
$150 million (c)
 
3.07%
 
 
$25.6 million

(a)
The interest rate is the estimated interest rate as of December 31, 2017 that would have been applied to outstanding borrowings under the facility.
(b)
Borrowings under this Entergy Arkansas credit facility may be secured by a security interest in its accounts receivable at Entergy Arkansas’s option.
(c)
The credit facility permits the issuance of letters of credit against a portion of the borrowing capacity of the facility as follows: $5 million for Entergy Arkansas; $15 million for Entergy Louisiana; $10 million for Entergy New Orleans; and $30 million for Entergy Texas.  
(d)
Borrowings under the Entergy Mississippi credit facilities may be secured by a security interest in its accounts receivable at Entergy Mississippi’s option.
Uncommitted Standby Letter of Credit Facilities to Support MISO Obligations
In addition, Entergy Arkansas, Entergy Louisiana, Entergy Mississippi, Entergy New Orleans, and Entergy Texas each entered into one or more uncommitted standby letter of credit facilities as a means to post collateral to support its obligations to MISO. Following is a summary of the uncommitted standby letter of credit facilities as of December 31, 2017:
Company
 
Amount of Uncommitted Facility
 
Letter of Credit Fee
 
Letters of Credit Issued as of December 31, 2017 (a)
Entergy Arkansas
 
$25 million
 
0.70%
 
$1.0 million
Entergy Louisiana
 
$125 million
 
0.70%
 
$29.7 million
Entergy Mississippi
 
$40 million
 
0.70%
 
$15.3 million
Entergy New Orleans
 
$15 million
 
1.00%
 
$1.4 million
Entergy Texas
 
$50 million
 
0.70%
 
$22.8 million


(a)
As of December 31, 2017, letters of credit posted with MISO covered financial transmission right exposure of $0.2 million for Entergy Arkansas, $0.1 million for Entergy Mississippi, and $0.05 million for Entergy Texas. See Note 15 to the financial statements for discussion of financial transmission rights.
Short-Term Borrowings And The Outstanding Short-Term Borrowings
The following are the FERC-authorized limits for short-term borrowings and the outstanding short-term borrowings as of December 31, 2017 (aggregating both internal and external short-term borrowings) for the Registrant Subsidiaries:

 
Authorized
 
Borrowings
 
(In Millions)
Entergy Arkansas
$250
 
$166
Entergy Louisiana
$450
 
Entergy Mississippi
$175
 
Entergy New Orleans
$150
 
Entergy Texas
$200
 
System Energy
$200
 
System Energy [Member]  
Short-Term Borrowings And The Outstanding Short-Term Borrowings
The following are the FERC-authorized limits for short-term borrowings and the outstanding short-term borrowings as of December 31, 2017 (aggregating both internal and external short-term borrowings) for the Registrant Subsidiaries:

 
Authorized
 
Borrowings
 
(In Millions)
Entergy Arkansas
$250
 
$166
Entergy Louisiana
$450
 
Entergy Mississippi
$175
 
Entergy New Orleans
$150
 
Entergy Texas
$200
 
System Energy
$200
 
Issuance Of Commercial Paper To Finance Acquisition And Ownership Of Nuclear Fuel
To finance the acquisition and ownership of nuclear fuel, the nuclear fuel company VIEs have credit facilities and three of the four VIEs also issue commercial paper, details of which follow as of December 31, 2017:
Company
 
Expiration Date
 
Amount of Facility
 
Weighted Average Interest Rate on Borrowings (a)
 
Amount Outstanding as of December 31, 2017
 
 
(Dollars in Millions)
Entergy Arkansas VIE
 
May 2019
 
$80
 
2.87%
 

$74.9
 (b)
Entergy Louisiana River Bend VIE
 
May 2019
 
$105
 
2.38%
 

$65.7

Entergy Louisiana Waterford VIE
 
May 2019
 
$85
 
2.64%
 

$79.9
 (c)
System Energy VIE
 
May 2019
 
$120
 
2.52%
 

$67.8
 (d)


(a)
Includes letter of credit fees and bank fronting fees on commercial paper issuances by the nuclear fuel company variable interest entities for Entergy Arkansas, Entergy Louisiana, and System Energy. The nuclear fuel company variable interest entity for Entergy Louisiana River Bend does not issue commercial paper, but borrows directly on its bank credit facility.
(b)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Arkansas VIE as of December 31, 2017 was $50 million.
(c)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for Entergy Louisiana Waterford VIE as of December 31, 2017 was $43.5 million.
(d)
Includes borrowings on the credit facility and commercial paper. Commercial paper is classified as a current liability and the amount outstanding for System Energy VIE as of December 31, 2017 was $17.8 million.
Notes Payable By Variable Interest Entities
The nuclear fuel company variable interest entities had notes payable that are included in debt on the respective balance sheets as of December 31, 2017 as follows:
Company
 
Description
 
Amount
Entergy Arkansas VIE
 
3.65% Series L due July 2021
 
$90 million
Entergy Arkansas VIE
 
3.17% Series M due December 2023
 
$40 million
Entergy Louisiana River Bend VIE
 
3.38% Series R due August 2020
 
$70 million
Entergy Louisiana Waterford VIE
 
3.92% Series H due February 2021
 
$40 million
Entergy Louisiana Waterford VIE
 
3.22% Series I due December 2023
 
$20 million
System Energy VIE
 
3.78% Series I due October 2018
 
$85 million