Roll-Out Solar Array (ROSA)
Solar arrays that roll up for launch and unroll in space. Redwire built eight of these wings for the International Space Station, together rated at more than 160 kW.
Why it matters
Spacecraft need more power as payloads grow, and rigid panels are heavy and bulky. Rolled arrays pack small for launch, and Redwire's have flown on the space station, NASA's DART asteroid mission and a commercial geostationary satellite.
How the technology works
Modular photovoltaic blankets roll up for launch and unfurl in orbit using stored strain energy, with no motors. Redwire offers sizes from about 3 kW to 37 kW per wing.
Each space station wing provides more than 20 kW; the last pair was announced as launching on CRS-35 in October 2026.
Sources
Updated Oct 22, 2026 · How we source facts · Suggest a correction