ISS installs new solar arrays: power capacity increases by 34 percent

Astronauts Anil Menon and Joshua Kutrick successfully completed a spacewalk from aboard the International Space Station to upgrade the orbiting laboratory's power grid.

• Spacewalk operations lasted for 6 hours and 59 minutes.
• The final eighth IROSA solar array was successfully installed.
• The station's total power capacity increased from 160 to 215 kW (roughly 34%).

Design and Purpose of IROSA Arrays

The IROSA solar panels are compact, roll-out arrays designed to be installed on top of the ISS's existing power channels. This innovative approach significantly increases power generation without requiring a complete overhaul of the original solar array wings.

The additional electrical power is critical for running complex scientific equipment, life support systems, and accommodating future research demands on the station. Stable energy supplies ensure the continuous operation of the orbital laboratory.

Mission Highlights and Completion

For astronaut Anil Menon, this spacewalk marked the fifth of his career, while colleague Joshua Kutrick completed his second. The successful installation of the eighth panel fully concludes the planned solar power system upgrade program for the ISS.

Long-term Impact on Space Operations

The completion of the solar array upgrade elevates the station's capabilities to a new level, ensuring a reliable and robust power supply for all ongoing and future scientific missions in low-Earth orbit.