Singulus Technologies has signed a contract to supply SpaceX with a complete turnkey production line for heterojunction (HJT) solar cells, the German equipment maker announced on November 10. 
The line will be set up at SpaceX’s production facility in Bastrop, Texas, to make cells for its Starmind satellites. The first line is due in the first half of 2027, and Singulus expects to deliver more lines under the partnership. The contract value has not been disclosed.
Partnership terms
The two companies began their strategic partnership in March 2026. Singulus will develop both the solar cells and the equipment used to make them, building on technologies already deployed at scale. Production is to scale “to support more than 100 GW of production equipment”, Singulus said. SpaceX provided significant funding in March 2026 and more in October through a subordinated secured loan, with neither amount disclosed.
Lars Lieberwirth, member of the Singulus executive board, said: “The strategic partnership with SpaceX allows us to further industrialize these capabilities at a meaningful scale and solidify our position as a leading Western provider of next-generation solar cell technology.”
Mike Nicolls, SpaceX’s senior vice president of Starlink, described the deal as a “durable option for scaling solar production”. He added: “Partnering with Singulus gives us a high-performance manufacturing path for solar cells for our Starmind satellites at our production facility in Texas.”
Starmind
Starmind is SpaceX’s AI satellite programme. The satellites are designed to capture solar energy in orbit and run computing there, with results sent to Earth through Starlink. Production and deployment of thousands of satellites is planned to begin as soon as late 2027.
SpaceX has not published its reasoning for choosing HJT. PVTime, a Chinese industry outlet, has argued that the technology supports ultra-thin wafers of 50-70 microns, which cut weight and resist radiation, at a fraction of the cost of conventional space cells.
The featured photograph is for representation only.
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