Valley Metro to use solar power in cooling system
NRG Thermal LLC is building a system that uses solar power and the company’s downtown district cooling system to provide cooling to the seating areas of the popular 3rd Street/Washington Valley Metro light rail station. Will design and build the system by July 5, the week before the Major League Baseball All-Star game is held in Phoenix.
NRG Thermal LLC, a subsidiary of NRG Energy Inc., is building an innovative system that uses solar power and the company’s downtown district cooling system to provide cooling to the seating areas of the popular 3rd Street/Washington Valley Metro (Metro) light rail station. The system will launch this July and operate May through September annually, when summer temperatures often exceed 110 degrees.
“I was able to experience a similar system during a business trip to Dubai and brought the idea back to Phoenix,” said Phoenix Mayor Phil Gordon. “NRG took the ball and ran with it, investing its money and expertise to make this happen. This solar-powered system will make riding the light rail in Phoenix even cooler. It’s an example of public-private partnership at its best.”
“This partnership with NRG will have a direct and positive impact on our riders,” said Metro CEO Steve Banta. “In addition to being a welcomed customer amenity, this project is the first use of solar energy on our system. We’re hopeful it can lead to other solar opportunities along our current line and as we grow.”
NRG plans to design and build this project by July 5, the week before the Major League Baseball All-Star game is held in Phoenix. Throughout the project’s construction, access to light rail service and station amenities, including fare vending machines, will not be affected.
Project benefits include:
• Free and on-demand cooling for passengers will improve the rail system experience.
• The system is environmentally friendly, leveraging the existing energy-efficient downtown district cooling system and using solar power to operate the air-conditioning/air-moving system.
• NRG will cover the entire cost of building, operating and maintaining this new system, which means no additional costs to local residents and commuters.
• The project will include an educational exhibit showcasing the technology and how it works.
NRG owns and operates NRG Energy Center Phoenix, which provides cost-efficient and effective cooling for 34 major buildings in downtown Phoenix including Chase Field, US Airways Center, the Phoenix Convention Center, the Sheraton Hotel, Symphony Hall and CityScape, among others.
The company also owns and operates distributed solar systems in Arizona at several schools, which help reduce the schools’ utility bills and provide shade for on-campus parking lots.
More Bus

New York MTA Plans Largest Bus Fleet Upgrade in More Than a Decade
The agency is seeking manufacturers for 650 new CNG buses to replace aging vehicles, improve reliability, and advance its broader fleet modernization strategy.
Read More →Building a Flexible Path to Transit Electrification
John Hroncich discusses BAE Systems’ modular and scalable approach, lessons learned from decades of real-world operations, and how agencies can identify electrification strategies that fit their fleets.
Read More →
Bus Tech Talk: Keeping Transit Technicians Ahead of the Technology Curve
LA Metro’s Obed Mejia discusses technician training, evolving maintenance technology, fleet replacement, and strategies for getting the most out of today’s transit fleets.
Read More →
Biz Briefs: RIPTA Unveils New Frontrunners, Clevland RTA Adds New Siemens, and More
In METRO's latest installment, we take a look at recent news from Siemens, Prevost, Dodge, and more partnerships making headlines across the transportation sector.
Read More →
People Movement: Holly Arnold Joins Transdev and More
In this edition, we also cover recent appointments and announcements at Pace, CamTran, MCI, and more, showcasing the individuals helping to shape the future of transportation.
Read More →
The High Cost of Transit Buses: Industry Leaders Look to Procurement Reform
Transit leaders and policymakers examine how standardized bus designs, streamlined procurement, and predictable funding could help agencies stretch budgets and deliver better service.
Read More →
The Business Voice Behind Public Transportation
As chair of APTA’s Business Members Board of Governors, Ray Melleady explains how more than 850 business members are partnering with transit agencies to advance funding, innovation, and industry-wide collaboration.
Read More →From Surviving to Thriving: Building Stronger Transportation Organizations
Bus Business Consultants founder Brian Dickson shares lessons on leadership, organizational health, and creating options for long-term success in a changing transportation industry.
Read More →
Finding the ‘Happy Medium’: Optimizing Maintenance Without Sacrificing Reliability
The key to maintenance optimization isn’t doing less work—it’s doing the right work at the right time on the right assets.
Read More →
LA Metro, City of West Hollywood, and Partners Advance Smarter Bus Lane Enforcement
The award-winning partnership combines AI-powered detection with human oversight to improve bus reliability, accessibility, and enforcement efficiency.
Read More →