Source Energy

Source Energy (Source Energy Company) is a US spacecraft power systems manufacturer founded by veterans of SpaceX, Redwire (Roccor), and CTD, based in Colorado. The company was created to break the traditional bottleneck of spacecraft solar power procurement: long lead times, sky-high prices, and bespoke designs that slow satellite development.

Source delivers flight-proven solar modules and deployable solar arrays for small satellites at dramatically lower cost than heritage suppliers, with components available immediately in high volume. The company's solar modules achieve specific powers up to 303 W/kg with full electrical redundancy, tolerance to micrometeorites and localised shading, and space-stable construction hardened for UV, radiation, and atomic oxygen. Systems have been verified in orbit with flight heritage on SpaceX Transporter-8 and Transporter-9 rideshare missions.

Source's product line includes rigid bodymount solar panels, small rigid deployable arrays, and large flexible deployable arrays for high-power rideshare spacecraft. The large deployable arrays feature aluminium or carbon-fibre pantograph booms, Z-folded photovoltaic blankets, bifacial generation, low magnetic moment, and a 7-year LEO design lifetime, with SADA (Solar Array Drive Assembly) compatibility. A 3 kW beta prototype has been built and tested.

Founded by CEO Philip Keller (formerly Roccor/Redwire, where he built the satellite solar array business from the ground up before its acquisition) and COO Bryan Mazor (formerly SpaceX, where he led the Crew Dragon solar arrays and original Starlink array development), Source delivered its first qualified primary power solution just 14 months after incorporation, with two more qualified solutions following within two months.