NASA Completes Historic Space Station Power Upgrade

WASHINGTON, November 5, 2026. High above Earth, two astronauts worked for nearly seven hours in the vacuum of space to complete a major upgrade to one of humanity’s most important scientific laboratories. On Thursday, NASA astronaut Anil Menon and Canadian Space Agency astronaut Joshua Kutryk successfully installed the final solar array on the International Space Station (ISS). Their achievement marked the completion of a power improvement project that began more than five years earlier, giving the orbiting laboratory greater capacity to support scientific research, essential equipment, and future operations. The astronauts completed their spacewalk at 3:35 p.m. Eastern Standard Time, concluding an operation that significantly improved the station’s electrical infrastructure.

NASA Space Station Power Upgrade Reaches Major Milestone

The November 5 spacewalk began at 8:36 a.m. EST, when Menon and Kutryk exited the station’s Quest airlock. Their assignment was to install and deploy the eighth and final International Space Station Roll Out Solar Array, known as IROSA, on the station’s 3B electrical power channel. The astronauts worked on the starboard side of the station’s extensive truss structure, where the new equipment would capture sunlight and generate electricity. NASA confirmed that the operation lasted six hours and 59 minutes. It was the 101st spacewalk conducted under the United States designation and the 286th supporting the station’s assembly, maintenance, and upgrades. The mission also marked Menon’s fifth spacewalk and Kutryk’s second, highlighting the experience required for complex work outside a spacecraft.

Five Years Of Engineering Work Deliver More Power

The completed NASA space station power upgrade represents the culmination of a project involving extensive planning, equipment preparation, and multiple missions. NASA reported that astronauts performed 18 spacewalks to prepare the station’s electrical systems and install eight new solar arrays. The improvement effort began in 2021 as engineers worked to strengthen the aging orbital laboratory’s power infrastructure. With all eight arrays installed, the station’s generating capacity has increased from approximately 160 kilowatts to 215 kilowatts. That represents an additional 55 kilowatts, or roughly 34 percent more generating capacity. NASA describes the improvement as providing up to 30 percent more available power. This additional electricity is important because the station depends on reliable energy to operate its scientific instruments, environmental controls, communications systems, and other essential equipment.

A Carefully Coordinated Operation Above Earth

Installing equipment outside the International Space Station requires careful coordination between astronauts and mission controllers on Earth. During preparations for the November 5 operation, NASA explained that Menon would transport the folded solar array while attached to the station’s Canadarm2 robotic arm. Kutryk would position himself near the installation site to assist with transferring and securing the equipment. The operation followed a similar procedure used during their October 29 spacewalk, when the astronauts installed the seventh solar array on the opposite side of the station. That earlier mission lasted seven hours and 11 minutes. The successful completion of both operations demonstrates how astronauts, robotic systems, and ground teams can work together to maintain complex infrastructure hundreds of miles above Earth.

Why The Solar Power Upgrade Matters For Science

The International Space Station serves as a laboratory where astronauts conduct experiments that are difficult or impossible to reproduce under normal conditions on Earth. Its research includes investigations into biological processes, materials, technology, and the effects of microgravity. Additional electrical capacity supports the equipment needed to conduct these experiments while maintaining the station’s everyday operations. NASA’s Expedition 75 mission includes research involving manufacturing techniques, advanced technology, and biological investigations. The new solar arrays also have an important operational purpose beyond scientific research. NASA has stated that the increased power will help support critical station functions, including preparations for its eventual safe and controlled deorbit. The upgrade therefore contributes to both the station’s present research activities and its long term operational needs.

International Cooperation Remains Central To The Mission

The November 5 achievement also illustrates the importance of international cooperation in human spaceflight. Menon represented NASA, while Kutryk represented the Canadian Space Agency, whose Canadarm2 robotic system played a central role in the installation process. Their work formed part of Expedition 75, a mission involving astronauts and cosmonauts from several countries. Although the solar array installation was a technical operation, its wider significance lies in the continued ability of international teams to operate and maintain a shared scientific facility in orbit. The mission demonstrated the practical value of combining specialized equipment, astronaut training, and coordinated engineering expertise.

What Comes Next For The International Space Station

With the final solar array installed, NASA has completed a major phase of its station power modernization program. The achievement provides greater electrical capacity for ongoing research and essential operations while supporting the infrastructure needed during the station’s remaining service life. For readers, the key takeaway is that space exploration depends not only on launching new missions but also on maintaining the systems already operating beyond Earth. The November 5 spacewalk offers a clear example of that work. The completed power upgrade stands as an important engineering milestone for the orbital laboratory and the international teams responsible for keeping it operational.