EX-10.74

This FIFTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, dated as of June 22, 2015 (this “Amendment”), is entered into by and between 2013B ESA PROJECT COMPANY, LLC, a Delaware limited liability company (the “Borrower”), and SILICON VALLEY BANK, a California corporation (the “Lender”). The purpose of this Amendment is to amend that certain Amended and Restated Credit Agreement, dated as of September 25, 2013, as amended by the First Amendment to Amended and Restated Credit Agreement, dated as of November 14, 2013, as further amended by the Second Amendment to Amended and Restated Credit Agreement, dated as of July 18, 2014, as further amended by the Third Amendment to Amended and Restated Credit Agreement, effective as of October 24, 2014, and as further amended by the Fourth Amendment to Amended and Restated Credit Agreement, effective as of May 5, 2015, in each case, by and between the Borrower and the Lender (collectively, the “Credit Agreement”). Capitalized terms used and not otherwise defined herein have the meanings given to them in the Credit Agreement and the rules of interpretation set forth in the Credit Agreement apply as if set forth herein.

WHEREAS, pursuant to the Credit Agreement, the Lender agreed to make a credit facility available to the Borrower, subject to the terms and conditions set forth therein; and

WHEREAS, on and subject to the conditions of this Amendment, the undersigned are willing to agree to the requested amendments to the Credit Agreement;

NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the undersigned agree as follows:

Section 1. Amendments to Schedule 1.01 to the Credit Agreement. Schedule 1.01 to the Credit Agreement is hereby amended in the manner set forth in Exhibit A to this Amendment.

Section 2. Effectiveness. This Amendment shall be effective when it has been executed by the Lender and the Borrower and shall thereafter be effective as of the date first set forth above.

Section 3. Limited Purpose. Notwithstanding anything contained herein, the waivers, amendments and modifications made hereby: (a) are limited waivers, amendments and modifications and do not waive, alter or amend any term of any Financing Document other than as expressly set forth herein, (b) are effective only with respect to the transactions described herein and in the Financing Documents for the specific instance and the specific purposes to which the relevant provisions apply, and (c) shall not be effective for any other purpose or transaction.

Section 4. Effect on Credit Agreement. Except as expressly amended hereby or otherwise provided herein, all of the terms and conditions of the Credit Agreement and all other Financing Documents remain in full force and effect, and none of such terms and conditions are, or shall be construed as, otherwise amended or modified. All references to the Credit Agreement in the Credit Agreement and the other Financing Documents, and any documents, instruments and agreements related to them, shall hereafter refer to the Credit Agreement as amended hereby.

Section 5. Representations and Warranties. Each party represents and warrants to the other that:

(a) the execution and delivery of this Amendment and the performance by such party of its obligations hereunder have been authorized by all requisite action on its part; and

(b) this Amendment has been validly executed and delivered by such party, and assuming that this Amendment has been duly authorized, executed, and delivered by the other parties, constitutes a valid and binding obligation of such party, enforceable against such party in accordance with its terms.

(a) THIS AMENDMENT SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK, UNITED STATES OF AMERICA, WITHOUT REFERENCE TO CONFLICTS OF LAW (OTHER THAN SECTIONS 5-1401 AND 5-1402 OF THE NEW YORK GENERAL OBLIGATIONS LAW).

(c) This Amendment may be executed in counterparts (and by different parties hereto in different counterparts), each of which shall constitute an original, but all of which when taken together shall constitute a single contract.

(d) Delivery of an executed counterpart of a signature page of this Amendment by telecopy or portable document format (“PDF”) shall be effective as delivery of a manually executed counterpart of this Amendment.

IN WITNESS WHEREOF, the parties hereto have caused this Fifth Amendment to Amended and Restated Credit Agreement to be executed by their respective officers effective as of the day and year first above written.


2013B ESA PROJECT COMPANY, LLC, as the Borrower

By:		/s/ William E. Brockenborough
		Name: William E. Brockenborough
		Title: Vice President


SILICON VALLEY BANK, as the Lender

By:		/s/ Bret Turner
		Name: Bret Turner
		Title: Managing Director


Quarter Ending	Total Principal Payments		Principal PMT as % of Principal Balance
10/1/2013	$	0		0.0000	%
1/1/2014	$	0		0.0000	%
4/1/2014	$	0		0.0000	%
7/1/2014	$	234,576		0.8180	%
10/1/2014	$	120,180		0.4191	%
1/1/2015	$	79,097		0.2758	%
4/1/2015	$	72,609		0.2532	%
7/1/2015	$	261,723		0.9127	%
10/1/2015	$	230,311		0.8032	%
1/1/2016	$	801,260		2.7942	%
4/1/2016	$	210,764		0.7350	%
7/1/2016	$	167,157		0.5829	%
10/1/2016	$	178,480		0.6224	%
1/1/2017	$	212,975		0.7427	%
4/1/2017	$	173,180		0.6039	%
7/1/2017	$	151,968		0.5300	%
10/1/2017	$	182,540		0.6366	%
1/1/2018	$	223,804		0.7805	%
4/1/2018	$	222,728		0.7767	%
7/1/2018	$	218,458		0.7618	%
10/1/2018	$	210,933		0.7356	%
1/1/2019	$	284,964		0.9937	%
4/1/2019	$	175,976		0.6137	%
7/1/2019	$	194,209		0.6773	%
10/1/2019	$	171,363		0.5976	%
1/1/2020	$	385,006		1.3426	%
4/1/2020	$	207,006		0.7219	%
7/1/2020	$	223,493		0.7794	%
10/1/2020	$	237,148		0.8270	%