SEC Form 4 
FORM 4	UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940 	  
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	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).			
1. Name and Address of Reporting Person*
Truong Martin H.	

(Last)	(First)	(Middle)	
7550 WISCONSIN AVENUE, 9TH FLOOR	

(Street) 
BETHESDA	MD	20814	

(City)	(State)	(Zip)	
	2. Issuer Name and Ticker or Trading Symbol 
TerraForm Power, Inc. [ TERP ] 	5. Relationship of Reporting Person(s) to Issuer 
(Check all applicable) 
X	Director		10% Owner	
	Officer (give title below)		Other (specify below)	

	3. Date of Earliest Transaction (Month/Day/Year)
03/10/2015 		
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) 
X	Form filed by One Reporting Person	
	Form filed by More than One Reporting Person	
	
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned	
1. Title of Security (Instr. 3) 	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8) 	4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 	5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 	7. Nature of Indirect Beneficial Ownership (Instr. 4) 	
			Code	V	Amount	(A) or (D)	Price				
Common Stock(1) 	03/10/2015		A		16,000(2) 	A	$0 	23,500	D		
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities) 	
1. Title of Derivative Security (Instr. 3) 	2. Conversion or Exercise Price of Derivative Security 	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8) 	5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 	6. Date Exercisable and Expiration Date (Month/Day/Year)	7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 	8. Price of Derivative Security (Instr. 5) 	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 	11. Nature of Indirect Beneficial Ownership (Instr. 4) 	
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares					
Explanation of Responses:	
1. Each restricted stock unit represents a contingent right to receive one share of Issuer's common stock. The restricted stock units were awarded on March 10, 2015 under the 2014 TerraForm Power, Inc. Long-Term Incentive Plan in a transaction exempt under Rule 16b-3.	
2. These RSU awards are 80% performance based and 20% time based, which are vested at 25 percent per year over a four year period. For the performance based RSUs, there are three performance tiers, each tier represents 33 percent of the entire grant. The performance tiers are measured on the dividend per share ("DPS") of Issuer, a controlled publicly traded subsidiary, which SunEdison, Inc. is the sponsor. Each of the performance tiers are based on Issuer's DPS targets, as pre-determined and approved by the Issuer's Compensation Committee. If certain performance goals are not achieved, the first, second and third performance tiers are forfeited in its entirety. If certain performance goals are met by the first quarter of 2016, 2017 and 2018, as measured by the last twelve months, the first, second and third tier will vest at 50%, 75% or 100%.	
Remarks:	
	
	/s/ Martin Truong	03/12/2015	
	** Signature of Reporting Person	Date	
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).	
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).	
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
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