Solestial, Inc.

Solestial's latest customer delivery is two meters long, delivers 320W per panel, and features innovative string routing designed to minimize the generation of residual dipoles, even in the event of power failure. Like all our modules they self-heal radiation damage in space.

Our new solar manufacturing equipment, acquired from Meyer Burger Germany, demonstrates our commitment to scaling production of our proprietary Si solar technology, the only solution designed to self-heal radiation damage in space.

Orbital data centers have become one of the most talked-about topics in space. Making them a reality comes down to several technical challenges, including power, one of the industry’s longest-standing bottlenecks. (1/3)

Solestial delivers silicon solar engineered for space to anneal radiation damage, combining affordable material inputs, shorter lead times, and durability that terrestrial solar was never designed to achieve in orbit. (2/3)

Solestial is a cost-effective alternative to III-V solar that doesn’t compromise performance. For large-scale space infrastructure to move from concept to deployment, success will depend on power that can be produced faster, launched sooner, and scaled efficiently. (3/3)

In just a few years, we've advanced our radiation-annealing Si solar tech from flexible coupons to 1-meter modules, and even to a 5.5-meter long deployable blanket. Each step reflects our team’s rapid iteration, disciplined engineering, and commitment to redefining space solar.

What will you build with flexible, low-mass Si solar power modules that self-heal radiation damage? With lead times measured in months, not years, Solestial’s tech is engineered to accelerate your mission timeline while delivering durable, high-performance power on orbit. ☀️🚀

ICYMI—Solestial’s Danny Field is featured in TechCrunch where he shares his views on orbital AI and space-based data centers. Check out the full article: tcrn.ch/3MBgi3K

2026 is off to a strong start at Solestial, with multiple customer programs underway. We’re proud of the team for executing early and setting the pace for the year ahead! 🦾☀️

Solestial’s silicon solar cells represent the next generation of space power. ☀️ Proprietary annealing technology self-heals radiation damage at normal operating temperatures, as low as 65°C (1/4)

☀️ Ultrathin and lightweight, delivering high specific power with less mass impact to missions ☀️ Flexible by design, supporting integration across a wide range of substrates and array architectures (2/4)

☀️ Low temperature coefficient, enabling up to a 1% absolute efficiency boost at typical operating conditions ☀️ Optional bifacial design captures light on both sides of the cell, delivering up to a 15% relative energy gain in LEO (3/4)

☀️ Manufactured in the USA, supporting scalable, secure space power supply chains Engineered for durability, scalability, and long-term performance, our solar cells are powering a future of abundant energy for space. (4/4)

Solestial is hiring an EHS Manager. This vital role will ensure compliance and champion a culture of safety that protects our people, facilities, and the environment. Learn more at: bit.ly/4k1wGXp

Solestial is building a fully integrated cell to module manufacturing operation in the U.S. We have acquired additional solar manufacturing equipment from Meyer Burger, strengthening our supply chain. Learn more in our press release: bit.ly/4qqt43O

We’re thrilled to welcome Javier Cuellar to Solestial as our new Quality Manager! He brings extensive experience building quality systems from the ground up in highly regulated industries ranging from aerospace to semiconductor manufacturing. Join us in welcoming him to the team!

We are kicking off 2026 with strong flight momentum! Solestial is scheduled to fly on four different launch vehicles in the first four months of the year, expanding our on orbit heritage and supporting multiple missions.

As 2025 comes to a close, we are proud to reflect on a year of growth, innovation, and momentum at Solestial. Highlights include: 🏈 Solestial was featured in an award-nominated @GoogleWorkspace Big Game commercial. 🚀 We welcomed our new CEO, Margo de Naray. (1/4)

🛰️ On orbit telemetry from @avs_engineering showed that after a year in LEO our Si solar cells continue perform with no additional degradation compared to adjacent III-V multijunction cells. (2/4)

☀️ We debuted 1-meter-wide Si solar power modules, offering low mass, high specific power, low temp coeff, and various substrate integrations. 🤝 We announced customer wins including but not limited to @EnduroSat and a @SpaceWERXDOD D2P2 award. (3/4)