AGREEMENT OF JOINT FILING (NRG Yield, Inc.)

Exhibit 99.1

AGREEMENT OF JOINT FILING

(NRG Yield, Inc.)

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the undersigned hereby confirm the agreement by and among them to the joint filing on behalf of them of the Statement on Schedule 13G and any and all further amendments thereto, with respect to the securities of the above referenced issuer, and that this Agreement be included as an Exhibit to such filing.  This Agreement may be executed in any number of counterparts each of which shall be deemed to be an original and all of which together shall be deemed to constitute one and the same Agreement.

IN WITNESS WHEREOF, the undersigned hereby execute this Agreement as of May 30, 2017.

	APOLLO CREDIT STRATEGIES MASTER FUND LTD.
	By:	Apollo ST Fund Management LLC
		its investment manager
		By:	/s/ Xxxxxx X. Xxxxx
		Name:	Xxxxxx X. Xxxxx
		Title:	Vice President
	APOLLO ST FUND MANAGEMENT LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President
	APOLLO ST OPERATING LP
	By:	Apollo ST Capital LLC
		its general partner
		By:	/s/ Xxxxxx X. Xxxxx
		Name:	Xxxxxx X. Xxxxx
		Title:	Vice President
	APOLLO ST CAPITAL LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President
	ST MANAGEMENT HOLDINGS, LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President

	APOLLO ALTERNATIVE CREDIT LONG SHORT
	FUND L.P.
	By:	Apollo Alternative Credit Long Short Advisors LLC
		its general partner
		By:	/s/ Xxxxxx X. Xxxxx
		Name:	Xxxxxx X. Xxxxx
		Title:	Vice President
	APOLLO ALTERNATIVE CREDIT LONG SHORT MANAGEMENT LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President
	APOLLO A-N CREDIT FUND (DELAWARE), L.P.
	By:	Apollo A-N Credit Advisors (APO FC Delaware), L.P.
		its general partner
		By:	Apollo A-N Credit Advisors (APO FC-GP), LLC
			its general partner
			By:	/s/ Xxxxxx X. Xxxxx
			Name:	Xxxxxx X. Xxxxx
			Title:	Vice President
	APOLLO A-N CREDIT MANAGEMENT, LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President

	APOLLO CREDIT MANAGEMENT, LLC
	By:		/s/ Xxxxxx X. Xxxxx
	Name:		Xxxxxx X. Xxxxx
	Title:		Vice President
	APOLLO CAPITAL CREDIT MANAGEMENT, LLC
	By:		/s/ Xxxxxx X. Xxxxx
	Name:		Xxxxxx X. Xxxxx
	Title:		Vice President
	APOLLO BELENOS MANAGEMENT LLC
	By:	Apollo Capital Management, L.P.
		its sole member
		By:		Apollo Capital Management GP, LLC
				its general partner
				By:	/s/ Xxxxxx X. Xxxxx
				Name:	Xxxxxx X. Xxxxx
				Title:	Vice President
	APOLLO SA MANAGEMENT, LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President

	APOLLO ARROWHEAD MANAGEMENT, LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President
	APOLLO CAPITAL MANAGEMENT, L.P.
	By:	Apollo Capital Management GP, LLC
		its general partner
		By:	/s/ Xxxxxx X. Xxxxx
		Name:	Xxxxxx X. Xxxxx
		Title:	Vice President
	APOLLO CAPITAL MANAGEMENT GP, LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President
	APOLLO MANAGEMENT HOLDINGS, L.P.
	By:	Apollo Management Holdings GP, LLC
		its general partner
		By:	/s/ Xxxxxx X. Xxxxx
		Name:	Xxxxxx X. Xxxxx
		Title:	Vice President
	APOLLO MANAGEMENT HOLDINGS GP, LLC
	By:	/s/ Xxxxxx X. Xxxxx
	Name:	Xxxxxx X. Xxxxx
	Title:	Vice President