Roll-Out Solar Arrays (IROSAs) boost International Space Station power supply
Once all eight International Space Station Roll-Out Solar Arrays (IROSAs) are in place, they will add more than 160 kilowatts of power for station research and operations. Each array is about half the size of the original arrays and can provide about 28 kilowatts of additional power; they were designed, manufactured, and tested by Redwire under a Boeing contract. Six were installed between 2021 and 2023, and the remaining two arrived aboard the cargo bay of the SpaceX Dragon spacecraft on the company's 35th commercial resupply mission. The arrays launch in a cylindrical configuration and deploy autonomously after installation, reducing launch mass and volume.