Exhibit 10

EXTENSION AGREEMENT

JPMorgan Chase Bank, N.A.

as Administrative Agent

under the Credit Agreement

referred to below

Ladies and Gentlemen:

The undersigned hereby agrees to extend, effective August 29, 2013, the
Termination Date under the Credit Agreement dated as of October 27, 2011 (as
further amended from time to time, the “Credit Agreement”) among Consolidated
Edison Company of New York, Inc., Consolidated Edison, Inc. Orange and Rockland
Utilities, Inc., the Lenders party thereto and JPMorgan Chase Bank, N.A., as
Administrative Agent, for one year to October 27, 2017 and by their acceptance
hereof the Borrowers hereby confirm that the conditions set forth in
Section 2.19(b)(i) and (ii) of the Credit Agreement are satisfied as to such
extension. Terms defined in the Credit Agreement are used herein with the same
meaning.

This Extension Agreement shall be construed in accordance with and governed by
the law of the State of New York.

Signature pages to follow

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JPMORGAN CHASE BANK, N.A.,

as Lender

By:  

/s/ Peter Christensen

  Name: Peter Christensen   Title: Vice President

 

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BANK OF AMERICA, N.A.,

as Lender

By:  

/s/ Jerry Wells

  Name: Jerry Wells   Title:   Vice President

 

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THE ROYAL BANK OF SCOTLAND PLC,

as Lender

By:  

/s/ Tyler J. McCarthy

  Name: Tyler J. McCarthy   Title: Director

 

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CITIBANK, N.A.,

as Lender

By:  

/s/ Scott McMurtry

  Name: Scott McMurtry   Title:   Vice President

 

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BARCLAYS BANK PLC,

as Lender

By:  

/s/ Noam Azachi

  Name: Noam Azachi   Title:   Vice President

 

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THE BANK OF TOKYO-MITSUBISHI UFJ, LTD.,

as Lender

By:  

/s/ Chi-Cheng Chen

  Name: Chi-Cheng Chen   Title:   Vice President

 

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KEYBANK NATIONAL ASSOCIATION,

as Lender

By:  

/s/ Sherrie I. Manson

  Name: Sherrie I. Manson   Title:   Senior Vice President

 

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MIZUHO BANK, LTD.,

as Lender

By:  

/s/ Raymond Ventura

  Name: Raymond Ventura   Title:   Deputy General Manager

 

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MORGAN STANLEY BANK, N.A.,

as Lender

By:  

/s/ Kelly Chin

  Name: Kelly Chin   Title:   Authorized Signatory

 

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THE BANK OF NEW YORK MELLON,

as Lender

By:  

/s/ Richard K. Fronapfel, Jr.

  Name: Richard K. Fronapfel, Jr.   Title:   Vice President

 

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WELLS FARGO BANK, NATIONAL ASSOCIATION,

as Lender

By:  

/s/ Nick Brokke

  Name: Nick Brokke   Title:   Assistant Vice President

 

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CANADIAN IMPERIAL BANK OF COMMERCE-NEW

YORK AGENCY

as Lender

By:  

/s/ Gordon R. Eadon

  Name: Gordon R. Eadon   Title:   Authorized Signatory By:  

/s/ Robert Casey

  Name: Robert Casey   Title:   Authorized Signatory

 

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THE BANK OF NOVA SCOTIA,

as Lender

By:  

/s/ Thane Rattew

  Name: Thane Rattew   Title:   Managing Director

 

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U.S. BANK NATIONAL ASSOCIATION,

as Lender

By:  

/s/ James O’Shaughnessy

  Name: James O’Shaughnessy   Title:   Vice President

 

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T.D. BANK, N.A.,

as Lender

By:  

/s/ David Perlman

  Name: David Perlman   Title:   Senior Vice President

 

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STATE STREET BANK AND TRUST COMPANY,

as Lender

By:  

/s/ Kimberly R. Costa

  Name: Kimberly R. Costa   Title:   Vice President

 

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THE NORTHERN TRUST COMPANY,

as Lender

By:  

/s/ Sophia Love

  Name: Sophia Love   Title:   Vice President

 

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Agreed and accepted:

CONSOLIDATED EDISON COMPANY

OF NEW YORK, INC.

By:  

/s/ Scott Sanders

  Name: Scott Sanders   Title:   Vice President and Treasurer CONSOLIDATED
EDISON, INC. By:  

/s/ Scott Sanders

  Name: Scott Sanders   Title:   Vice President and Treasurer ORANGE AND
ROCKLAND UTILITIES, INC. By:  

/s/ Yukari Saegusa

  Name: Yukari Saegusa   Title:   Treasurer

JPMORGAN CHASE BANK, N.A., as

Administrative Agent

By:  

/s/ Peter Christensen

  Name: Peter Christensen   Title:   Vice President