Solar Power World

  • Home
  • Top Solar Contractors
  • Articles
    • Most Recent Posts
    • News
      • Latest News Items
      • SPW State News Hub
      • IRA/HR1 coverage
      • Solar tariffs
      • U.S. manufacturing updates
    • Featured
      • Latest Feature Stories
      • Contractor’s Corner
      • Trends in Solar
      • The Solar Explorer
  • Policy
    • The Solar Policy Scoop
    • IRA/HR1 Coverage
  • Markets
    • Residential
    • Commercial
    • Community Solar
    • Utility
  • Products
    • 2025 Top Products application
    • Winners of SPW’s 2024 Top Products
    • Batteries and Storage
    • Electric Vehicle (EV)
    • Inverters
      • U.S. solar inverter manufacturers
    • Racking and Mounting
      • U.S. solar mounting manufacturers
    • Software
    • Solar Panels
      • U.S. solar panel manufacturers
  • Resources
    • About SPW
    • Digital Issues
    • Event Coverage
    • Podcasts
    • Product Manufacturing Locations
      • U.S. solar inverter manufacturers
      • U.S. solar mounting manufacturers
      • U.S. solar panel manufacturers
    • Solar Classrooms
    • Suppliers
    • Videos
    • Views
    • Voices
    • Webinars / Digital Events
    • Whitepapers
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Advertise
  • Subscribe

RES (Renewable Energy Systems)

RES (Renewable Energy Systems)

Denver, CO
Year Founded: 1981
res-group.com

Rank: 11
Share

RES is the world’s largest independent renewable energy company, working across 24 countries and active in wind, solar, energy storage, green hydrogen, and transmission. An industry innovator for over 40 years, RES has delivered more than 28 GW of renewable energy projects across the globe and plans to bring more than 26 GW of new capacity online in the next five years.



2025 Top Solar Contractors

2024 STATISTICS

Rank #11

Total Kilowatts Installed 2024: 1,114,300 Employees: 1,250
Total Kilowatts Installed Since Founded: 3,573,910 Markets: U
  Primary Service: EPC

2024 Solar Installations by Company in Specific States and Territories


State / Territory kW Installed  
Arizona 206,000.0 View State
Arkansas 132,000.0 View State
Mississippi 210,000.0 View State
New Mexico 367,000.0 View State
Ohio 199,300.0 View State
 
Back to 2025 Top Solar Contractor list

 

2024 Top Solar Contractors

2023 STATISTICS

Rank #26

Total Kilowatts Installed 2023: 380,000 Employees: 1,270
Total Kilowatts Installed Since Founded:3,573,910 Primary Market: Utility
  Primary Service: EPC

2023 Solar Installations by Company in Specific States and Territories


State / TerritorykW Installed 
Mississippi 130,000.0View State
Montana 105,000.0View State
Texas 145,000.0View State
 
Back to 2024 Top Solar Contractor list

 

2022 Top Solar Contractors

2021 STATISTICS

Rank #18

Total Kilowatts Installed 2021: 588,000 Employees: 2,000
Total Kilowatts Installed Since Founded:3,573,910 Primary Market: Utility
  Primary Service: EPC

2021 Solar Installations by Company in Specific States and Territories


State / TerritorykW Installed 
Georgia 269,000.0View State
Texas 319,000.0View State
 
Back to 2022 Top Solar Contractor list

 

2020 Top Solar Contractors

2020 STATISTICS

Rank #16

Total Kilowatts Installed 2020: 492,000 Employees: 2,500
Total Kilowatts Installed Since Founded:3,573,910 Primary Market: Utility
  Primary Service: EPC

2020 Solar Installations by Company in Specific States and Territories


State / TerritorykW Installed 
Iowa 128,000.0View State
Ohio 202,000.0View State
Texas 162,000.0View State
 
Back to 2021 Top Solar Contractor list

 


2020 Top Solar Contractors

2019 STATISTICS

Rank #12

Total Kilowatts Installed 2019: 381,858 Employees: 2,500
Primary Market: Utility Primary Service: EPC

2018 Solar Installations by Company in Specific States and Territories


State / TerritorykW Installed 
Colorado 4,969.0View State
Nevada 12,100.0View State
Texas 72,432.0View State

Back to 2020 Top Solar Contractor list

 


2019 Top Solar Contractors

2018 STATISTICS

Rank #27

Total Kilowatts Installed 2018: 89,501.0 Employees: 2,000
Primary Service: EPC Primary Market: Utility

Back to 2019 Top Solar Contractor list

 

2016 Top Solar Contractors

2015 STATISTICS

2015 Rank #97

Total Megawatts Installed 2015: 10.00 Employees: 500
Primary Market: Utility Primary Service: EPC

Back to 2016 Top Contractor list

 

2015 Top Solar Contractors

2014 STATISTICS

2014 Rank #20

Total Megawatts Installed 2014: 91.000 Employees: 500
Primary Market: Utility Primary Service: EPC  

Back to 2015 Top Contractor list

 
Solar Power World
  • Top Solar Contractors
  • Solar Articles
  • Windpower Engineering & Development
  • Leadership
  • About/Contact Us
  • Subscribe
  • Advertising
  • WTWH Media

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | RSS

Search Solar Power World

  • Home
  • Top Solar Contractors
  • Articles
    • Most Recent Posts
    • News
      • Latest News Items
      • SPW State News Hub
      • IRA/HR1 coverage
      • Solar tariffs
      • U.S. manufacturing updates
    • Featured
      • Latest Feature Stories
      • Contractor’s Corner
      • Trends in Solar
      • The Solar Explorer
  • Policy
    • The Solar Policy Scoop
    • IRA/HR1 Coverage
  • Markets
    • Residential
    • Commercial
    • Community Solar
    • Utility
  • Products
    • 2025 Top Products application
    • Winners of SPW’s 2024 Top Products
    • Batteries and Storage
    • Electric Vehicle (EV)
    • Inverters
      • U.S. solar inverter manufacturers
    • Racking and Mounting
      • U.S. solar mounting manufacturers
    • Software
    • Solar Panels
      • U.S. solar panel manufacturers
  • Resources
    • About SPW
    • Digital Issues
    • Event Coverage
    • Podcasts
    • Product Manufacturing Locations
      • U.S. solar inverter manufacturers
      • U.S. solar mounting manufacturers
      • U.S. solar panel manufacturers
    • Solar Classrooms
    • Suppliers
    • Videos
    • Views
    • Voices
    • Webinars / Digital Events
    • Whitepapers
  • 2025 Leadership
    • 2024 Winners
    • 2023 Winners
    • 2022 Winners
  • Advertise
  • Subscribe