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

Brian Dickson on Building Stronger, More Resilient Transportation Organizations
Bus Business Consultants Founder Brian Dickson discusses the leadership principles, operational discipline, and strategic planning that separate transportation companies positioned for long-term success from those stuck in survival mode.
Read More →
LA Metro Breaks Ground on Vermont BRT Project
The 12.4-mile corridor is projected to serve 66,200 daily riders, reduce travel times by up to 24%, and create the nation's busiest bus rapid transit corridor.
Read More →
Roman Cornell on ABC Companies’ Evolution and the Future of Passenger Transportation
The company’s CEO discusses carrying forward a third-generation family legacy, ABC’s continued evolution in passenger transportation, support for increasingly complex fleets, and how technology and continued investment could help operators improve uptime.
Read More →
VIA Bus Ridership Grows 10.1% Through August 2026
San Antonio's VIA Metropolitan Transit reported the highest bus ridership growth among major Texas transit systems. Federal Transit Administration data ranked it second among the nation's 50 largest transit systems.
Read More →
LA Metro September Ridership Climbs 3.9%, Led by Rail Growth
The agency recorded more than 27.2 million boardings, with rail ridership increasing 12.4% year over year and the D Line posting the largest gains.
Read More →
Frontrunner Bus Group Introduces XF Low-Floor Bus with Enhanced Accessibility
The new mid-sized bus features a full flat-floor design, eight-inch curbside step-in height, and zero-entry rear ramp to improve passenger access and operational flexibility.
Read More →
Scenes from APTA TRANSform & EXPO 2026
Transit leaders, manufacturers, and industry professionals gathered in Chicago to explore new technologies, share ideas, and discuss the future of public transportation.
Read More →
More Than a Summer Job: Building the Next Generation of Transit Talent
The Delaware River Port Authority and PATCO have transformed their internship program into a hands-on professional development experience that introduces students to the breadth of transportation careers — and creates a pipeline for future employees.
Read More →
LA Metro Board Awards 220 Battery-Electric Bus Contract to ENC
The contract, which is the largest base award of battery-electric buses by a U.S. transit agency, will be built in Southern California, sustaining good jobs as LA prepares to welcome the world in 2028
Read More →
Public Transit Conference Returning to GFX in 2027, Call for Papers Now Open
The Call for Papers is now open, allowing transit agency professionals and industry experts to help shape the PTC educational program by submitting session ideas for consideration.
Read More →