GSP Launches Major Infrastructure Improvements, Schedules Runway Closures
July 6, 2026
Greenville-Spartanburg International Airport (GSP) in Greer has begun a series of infrastructure projects this summer that officials say will strengthen the airport’s resilience, improve energy efficiency and support long-term growth, while also prompting travelers to plan ahead for a round of upcoming runway closures.
President and CEO Kevin Howell said the improvements include construction of a new microgrid, replacement of the glass on both concourses and a runway rehabilitation project scheduled for later this year.
Construction on the microgrid, which began in June, includes a 3-megawatt solar canopy array paired with a 4-megawatt battery energy storage system. Once complete, the system will generate enough electricity to power the airport terminal independently of the public power grid, according to the airport. By producing and storing its own energy, GSP will be better positioned to maintain operations during severe weather and power outages while reducing long-term utility costs.
Solar panels will be installed on the roofs of Parking Garages B and C, providing covered parking on the top level of each garage while generating clean energy. The top levels of both garages will be temporarily closed during construction. Parking Garage A will be included in a future phase, and the solar project is expected to be completed by fall 2027.
Inside the terminal, the Terminal Airside Glass Replacement Project will replace the glass on both concourses to improve energy efficiency and passenger comfort.
The runway rehabilitation project, part of the airport’s Terminal Runway Infrastructure Projects (TRIP), will bring the most noticeable impact for travelers. Nightly runway closures will begin in July 2026 following the last scheduled arrival each night. In addition, the airport will close entirely during two planned 60-hour weekend closures on Sept. 11-13 and Sept. 18-20, 2026.
Airport officials encouraged travelers to review the closure schedule before traveling and said flights and airport operations will otherwise continue as normal.
“While construction can sometimes be inconvenient, our commitment to providing a safe and reliable travel experience won’t change,” Howell said.
Officials said the projects were carefully planned to minimize disruptions and represent a continued investment in a safer, more efficient and more comfortable travel experience for passengers.
Photo source: GSP Airport
