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Semper Solaris

Semper Solaris

El Cajon, California
Year Founded: 2012
sempersolaris.com
Total Kilowatts Installed Since Founded: 250,778
Number of Employees: 253

Rank: 144

Semper Solaris is an award-winning, local, and veteran-owned Solar, Battery Storage, Windows, Roofing, and Heating & Air Conditioning company. Here at Semper Solaris, we endeavor to provide the best in-home upgrades to help our customers claim their energy independence from the power companies. The name Semper Solaris was inspired by the Marine Corps Motto, “Semper Fidelis”, meaning “Always Faithful”. Co-Owner and former Marine Corps Captain, Kelly Shawhan, and Co-Owner, John Almond, have taken the Marine Corps value of honor, courage, and commitment and applied them to every aspect of Semper Solaris.

★ 2026 Top Solar Contractors
#144
Overall Rank · 2026 List
No. 144 Solar Contractor in the United States
Solar kW · 2025
12,867
solar kilowatts installed
Storage kWh · 2025
32,066
storage kilowatt-hours installed
Primary Service
Installer
Residential
12,867
kW

2025 Solar Installations by State & Territory

State / Territory kW Installed 2025
California 12,629 View state list →
Arizona 184 View state list →
Texas 9 View state list →
← Back to 2026 Top Solar Contractors
Prior Prior
Lists
2012 – 2025
2025
Rank #150  ·  2025 List  ·  2024 Installation Data
R · Installer
11,817
2024 Installation Data
View 2024 Installation Data by State
California 11,272
Arizona 279
Florida 155
Texas 102
Illinois 7
View 2025 contractor list →
2024
Rank #100  ·  2024 List  ·  2023 Installation Data
Residential · Installer · Storage: 24,994 kWh
29,973
2023 Installation Data
View 2023 Installation Data by State
California 28,570
Florida 652
Arizona 580
Texas 169
View 2024 contractor list →
2023
Rank #82  ·  2023 List  ·  2022 Installation Data
Residential · Installer · Storage: 50,334 kWh
32,770
2022 Installation Data
View 2022 Installation Data by State
California 32,586
Florida 99
Texas 72
View 2023 contractor list →
2022
Rank #98  ·  2022 List  ·  2021 Installation Data
Residential · Installer · Storage: 58,805 kWh
23,301
2021 Installation Data
View 2021 Installation Data by State
California 23,301
View 2022 contractor list →
2021
Rank #107  ·  2021 List  ·  2020 Installation Data
Residential · Rooftop Contractor · Storage: 63,499 kWh
17,820
2020 Installation Data
View 2020 Installation Data by State
California 17,820
View 2021 contractor list →
2019
Rank #65  ·  2019 List  ·  2018 Installation Data
Residential · Rooftop Contractor
20
2018 Installation Data
View 2018 Installation Data by State
California 20,232
View 2019 contractor list →
2018
Rank #72  ·  2018 List  ·  2017 Installation Data
Residential · Rooftop Contractor
19
2017 Installation Data
2017
Rank #92  ·  2017 List  ·  2016 Installation Data
Residential · Rooftop Contractor
15
2016 Installation Data
2015
Rank #445  ·  2015 List  ·  2014 Installation Data
Residential · Developer
0
2014 Installation Data
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  • Home
  • Top Solar Contractors
  • Articles
    • Most Recent Posts
    • News
      • Latest News Items
      • SPW State News Hub
      • IRA/OBBBA coverage
      • Solar tariffs
      • U.S. manufacturing updates
    • Featured
      • Latest Feature Stories
      • Benchmarking U.S. Solar Manufacturing
      • SPW’s Rising Stars
      • Trends in Solar
      • The Solar Explorer
  • Policy
    • Latest policy headlines
    • IRA/OBBBA Coverage
    • Tariffs and Court Cases
  • Markets
    • Residential
    • Commercial
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  • Products
    • 2026 Top Products application
    • Winners of SPW’s 2025 Top Products
    • Batteries and Storage
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      • U.S. solar inverter manufacturers
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