Exhibit 4.1

016570| 003590|127C|RESTRICTED||4|057-423 COMMON STOCK PAR VALUE $0.01 vivint.solar COMMON STOCK THIS CERTIFICATE IS TRANSFERABLE IN CANTON, MA, JERSEY CITY, NJ AND GOLDEN, CO Shares ** 000000 ****** * * * 000000 * * * * * * * * * 000000 * * * * * * * * * 000000 * * * * * * * * * 000000 * * Certificate Number VS 000000 VIVINT SOLAR, INC. INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE THIS CERTIFIES THAT MR. SAMPLE & MRS. SAMPLE & MR. SAMPLE & MRS. SAMPLE SEE REVERSE FOR CERTAIN DEFINITIONS is the owner of ZERO HUNDRED THOUSAND ZERO HUNDRED AND ZERO FULLY-PAID AND NON-ASSESSABLE SHARES OF THE COMMON STOCK OF Vivint Solar, Inc. (hereinafter called the “Company”), transferable on the books of the Company in person or by duly authorized attorney, upon surrender of this Certificate properly endorsed. This Certificate and the shares represented hereby, are issued and shall be held subject to all of the provisions of the Articles of Incorporation, as amended, and the By-Laws, as amended, of the Company (copies of which are on file with the Company and with the Transfer Agent), to all of which each holder, by acceptance hereof, assents. This Certificate is not valid unless countersigned and registered by the Transfer Agent and Registrar. Witness the facsimile seal of the Company and the facsimile signatures of its duly authorized officers. Chief Exective Officer VIVINT SOLAR, INC. SEAL AUGUST 12, 2011 DELAWARE DATED <<Month Day, Year>> COUNTERSIGNED AND REGISTERED: COMPUTERSHARE TRUST COMPANY, N.A. TRANSFER AGENT AND REGISTRAR, Secretary SECURITY INSTRUCTIONS ON REVERSE VIVINT SOLAR, INC. By AUTHORIZED SIGNATURE A123456 vivint.solar PO BOX 43004, Providence, RI 02940-3004 MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 CUSIP XXXXXX XX X Holder ID XXXXXXXXXX Insurance Value 1,000,000.00 Number of Shares 123456 DTC 12345678 123456789012345 Certificate Numbers Num/No. Denom. Total 1234567890/1234567890 1 1 1 1234567890/1234567890 2 2 2 1234567890/1234567890 3 3 3 1234567890/1234567890 4 4 4 1234567890/1234567890 5 5 5 1234567890/1234567890 6 6 6 Total Transaction 7

VIVINT SOLAR, INC. THE COMPANY WILL FURNISH WITHOUT CHARGE TO EACH SHAREHOLDER WHO SO REQUESTS A SUMMARY OF THE POWERS, DESIGNATIONS, PREFERENCES AND RELATIVE PARTICIPATING, OPTIONAL OR OTHER SPECIAL RIGHTS OF EACH CLASS OF STOCK OF THE COMPANY AND THE QUALIFICATIONS, LIMITATIONS OR RESTRICTIONS OF SUCH PREFERENCES AND RIGHTS AND THE VARIATIONS IN RIGHTS PREFERENCES AND LIMITATIONS DETERMINED FOR EACH SERIES, WHICH ARE FIXED BY THE ARTICLES OF INCORPORATION OF THE COMPANY, AS AMENDED. AND THE RESOLUTIONS OF THE BOARD OF DIRECTORS OF THE COMPANY, AND THE AUTHORITY OF THE BOARD OF DIRECTORS TO DETERMINE VARIATIONS FOR FUTURE SERIES SUCH REQUEST MAY BE MADE TO THE OFFICE OF THE SECRETARY OF THE COMPANY OR TO THE TRANSFER AGENT THE BOARD OF DIRECTORS MAY REQUIRE THE OWNER OF A LOST OR DESTROYED STOCK CERTIFICATE OR HIS LEGAL REPRESENTATIVES TO GIVE THE COMPANY A BOND TO INDEMNIFY IT AND ITS TRANSFER AGENTS AND REGISTRARS AGAINST ANY CLAIM THAT MAY BE MADE AGAINST THEM ON ACCOUNT OF THE ALLEGED LOSS OR DESTRUCTION OF ANY SUCH CERTIFICATE The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations TEN COM as tenants in common UNIF GIFT MIN ACT - (Cust) Custodian (Minor) TEN ENT - as tenants by the entireties under Uniform Gifts to Minors Act (State) JT TEN - as joint tenants with right of survivorship and not as tenants in common UNIF TRF MIN ACT - (Cust) Custodian (until age ) (Minor) under Uniform Transfers to Minors Act (State) Additional abbreviations may also be used though not in the above list. For value received, hereby sell, assign and transfer unto ILLEGIBLE ILLEGIBLE of the Class A Common Stock represented by the within Certificate, and do hereby irrevocably constitute and appoint Shares Attorney to transfer the said stock on the books of the within-named Company with full power of substitution in the premises. Dated: 20 Signature: Signature: ILLEGIBLE Notice: The signature to this assignment ILLEGIBLE