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MARS Energy Group

MARS Energy Group

Rocklin, California
Year Founded: 2021
marsenergygroup.com
Total Kilowatts Installed Since Founded: 475,900
Number of Employees: 730

Rank: 49

MARS Energy Group is an integrated energy infrastructure company serving residential, commercial, industrial, and public sector customers nationwide. Through its operating divisions, the company delivers solar, roofing, battery storage, EPC, asset management, and long-term operations services. MARS Energy Solutions focuses on commercial solar, EPC, energy infrastructure, and asset management, while MARS Builder Solutions provides solar and roofing solutions for homebuilders and residential communities. Together, the platform is powered by relationships and defined by excellence, combining technical expertise with disciplined execution across the full project lifecycle.

★ 2026 Top Solar Contractors
#49
Overall Rank · 2026 List
No. 49 Solar Contractor in the United States
Solar kW · 2025
121,178
solar kilowatts installed
Primary Service
EPC
C&I
80,661
kW
Community
32,945
kW
Residential
751
kW

2025 Solar Installations by State & Territory

State / Territory kW Installed 2025
Illinois 51,172 View state list →
California 31,576 View state list →
New York 15,629 View state list →
Nebraska 12,492 View state list →
Colorado 8,491 View state list →
Wisconsin 1,810 View state list →
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  • Home
  • Top Solar Contractors
  • Articles
    • Most Recent Posts
    • News
      • Latest News Items
      • SPW State News Hub
      • IRA/OBBBA coverage
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      • U.S. manufacturing updates
    • Featured
      • Latest Feature Stories
      • The Solar Explorer
  • Policy
    • Latest policy headlines
    • IRA/OBBBA Coverage
    • Tariffs and Court Cases
  • Markets
    • Residential
    • Commercial
    • Community Solar
    • Utility
    • Storage
  • Products
    • 2026 Top Products application
    • Winners of SPW’s 2025 Top Products
    • Batteries and Storage
    • Electric Vehicle (EV)
    • Inverters
    • Racking and Mounting
    • Software
    • Solar Panels
  • Resources
    • About SPW
    • Digital Issues
    • Event Coverage
    • Podcasts
    • Solar Classrooms
    • Suppliers
    • Videos
    • Views
    • Voices
    • Webinars / Digital Events
    • Whitepapers
  • 2026 Leadership
    • 2025 Winners
  • Advertise
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