Abengoa is an international company that applies innovative technology solutions for sustainability in the energy and environment sectors, generating energy from the sun, producing biofuels, desalinating sea water and recycling industrial waste. With U.S. headquarters in Colorado and offices in California and Arizona, Abengoa´s solar business develops and applies proprietary solar thermal electric solar energy technologies to foster sustainable development and energy independence. Abengoa continuously improves product manufacturing and installation through rigorous research and development and is one of the world’s pioneers in the construction of commercial solar thermal electric plants.

BrightSource is a leader in the design, development and deployment of concentrating solar thermal technology that produces high-value electricity and steam for power, petroleum and industrial-process markets worldwide. BrightSource excels in offering world-proven technical, financing and project-management expertise to utility and industrial customers, helping them meet their energy needs cleanly, affordably and reliably.

Cone Drive Gearing Solutions is the world leader in double-enveloping worm gear technology, which delivers drive solutions with the highest torque and shock load capacity in the smallest amount of space. Cone Drive’s gearboxes help harness the sun’s power. The company partners with global solar technology developers to design, prototype, test and manufacture our solar tracking solutions in our Traverse City, Michigan facility. For more information on Cone Drive, please visit

Lointek is the leading provider of heat transfer equipment and process solutions and innovations for the Steam Generating Systems (SGS) used in Concentrating Solar Power and steam-consuming industrial plants. We utilize our proprietary thermal solar know-how and state-of-the art process, thermal, heat, and stress analysis and engineering expertise, and our advance manufacturing facilities to design, manufacture, and supply turn-key solutions to the industry. Our SGS and thermal storage solutions provide reliable and outstanding performance with optimum ramp rates and short start-up capabilities to CSP plants, enabling these plants to meet the supply and flexibility demands of power grids around the world. With more than 450 installed equipment in 40 plus CSP plants around the world, and in more than 70% of the CSP plants in Spain, Lointek is considered the world leader in supply of CSP Steam Generating and Thermal Storage systems. For more information about our technologies and products, please contact us at or, and visit us at

The Torresol Energy company was founded to promote technological development and the construction, operation and maintenance of large concentrated solar power plants all over the world.


Wilson Solarpower is developing a water-free modular concentrated solar power (CSP) system. The company is privately owned by its founders, David Wilson, Bruce Anderson, and the Massachusetts Institute of Technology, plus an international group of investors and energy experts. For more information on Wilson Solarpower, please visit


World-Class Partners

The Alliance’s membership is drawn from many of the world’s leading concentrating solar power technology companies and their supply-chain partners. The organization provides clear value to members in promoting this reliable, sustainable and cost effective technology. Our immediate agenda includes:

  • Advancing the industry’s technologies and their value propositions
  • Ensuring the correct interpretation and deployment of solar thermal electric technology
  • Driving differentiation between solar thermal electric power and photo-voltaic technologies
  • Pro-actively addressing environmental issues


Become a member

By becoming a member of the CSP Alliance, you’ll have ample opportunity to network with thought leaders, influence and educate policymakers, and enhance your organization’s profile by promoting renewable energy, economic growth, job creation and environmental responsibility. For more information on becoming a member, please contact