Revolv Space Launches MARA, its Next-Generation Solar Array Drive Assembly (SADA) for Constellations

Revolv Space, redefining small satellite capabilities through reliable and affordable space mechanisms and power systems, led by Marco Sala, Michal Grendysz, Filippo Oggionni, and Aleksander Fiuk, has announced the launch of MARA, its next-generation Solar Array Drive Assembly (SADA) for medium-sized platforms and constellations.

MARA delivers up to 5.2 kW per unit, bridging the gap between basic body-mounted arrays and costly legacy SADAs with a fully integrated, reliable, and competitively priced solution. As the evolution of SARA, it extends Revolv Space’s portfolio to power-intensive 300–1000 kg SmallSats and is optimized for high-volume production, making it ideal for major constellation programs like IRIS2 and the U.S. SDA.

MARA’s development was shaped through close collaboration with commercial customers across Europe and North America, with Revolv Space working since early 2024 to refine power transfer, envelope, reliability requirements, and qualification standards. A launch partner played a central role in validating early design assumptions and has already ordered ten units, Engineering and Flight Models, to be delivered between 2026 and 2027.

MARA’s target specs have been validated with major European system integrators and experienced space-agency engineers, and the system now sits at TRL 6 with an Engineering Model built and full environmental testing planned for early 2026. The design solves key power and integration challenges for both legacy and New Space manufacturers through a compact, fully redundant architecture built for long-lived missions. A proprietary twist-capsule replaces slip rings to cut cost, reduce lead times, and boost reliability; a sub-100 mm profile minimizes spacecraft interference; fully redundant power transfer and drive electronics support lifetimes of 7 years in LEO and 15 years in GEO; flexible mounting options enable internal or external placement; and extensive TID/SEE testing delivers radiation tolerance of 30 krad and an LET threshold of 38.8 MeV·cm²/mg.

The introduction of MARA strengthens Revolv Space’s position as an agile, technically advanced alternative to legacy suppliers, delivering a reliable SADA solution capable of supporting the 10 kW satellite class and enabling more complex, power-intensive missions with higher performance and greater mission return.