Solestial, Inc.
@solestialspace.bsky.social
We exist to deliver abundant ☀️ energy in space.
Linktr.ee/SolestialSpace
Linktr.ee/SolestialSpace
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/49DCi5z
January 21, 2026 at 1:50 PM
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/49DCi5z
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!
January 14, 2026 at 3:30 PM
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.
January 7, 2026 at 3:25 PM
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 Google Workspace Big Game commercial.
🚀 We welcomed our new CEO, Margo de Naray. (1/4)
🏈 Solestial was featured in an award-nominated Google Workspace Big Game commercial.
🚀 We welcomed our new CEO, Margo de Naray. (1/4)
December 30, 2025 at 3:33 PM
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 Google Workspace Big Game commercial.
🚀 We welcomed our new CEO, Margo de Naray. (1/4)
🏈 Solestial was featured in an award-nominated Google Workspace Big Game commercial.
🚀 We welcomed our new CEO, Margo de Naray. (1/4)
🛰️ On orbit telemetry from AVS 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)
December 30, 2025 at 3:32 PM
🛰️ On orbit telemetry from AVS 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 SpaceWERX D2P2 award. (3/4)
🤝 We announced customer wins including but not limited to EnduroSat and a SpaceWERX D2P2 award. (3/4)
December 30, 2025 at 3:31 PM
☀️ 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 SpaceWERX D2P2 award. (3/4)
🤝 We announced customer wins including but not limited to EnduroSat and a SpaceWERX D2P2 award. (3/4)
🦾 We continued to automate and scale our manufacturing capabilities to support customer demand.
Thank you to our team, partners, and customers for making 2025 such a defining year. We are excited to continue the momentum in 2026. (4/4)
Thank you to our team, partners, and customers for making 2025 such a defining year. We are excited to continue the momentum in 2026. (4/4)
December 30, 2025 at 3:30 PM
🦾 We continued to automate and scale our manufacturing capabilities to support customer demand.
Thank you to our team, partners, and customers for making 2025 such a defining year. We are excited to continue the momentum in 2026. (4/4)
Thank you to our team, partners, and customers for making 2025 such a defining year. We are excited to continue the momentum in 2026. (4/4)
We are pleased to welcome Nicolas Miltgen as Solestial’s new CFO! He brings deep experience in advanced manufacturing, including his role as VP of Finance at Divergent, where he supported a raise of nearly $1B and helped scale the business during a period of rapid growth.
December 23, 2025 at 3:33 PM
We are pleased to welcome Nicolas Miltgen as Solestial’s new CFO! He brings deep experience in advanced manufacturing, including his role as VP of Finance at Divergent, where he supported a raise of nearly $1B and helped scale the business during a period of rapid growth.
Another customer shipment is complete! Our latest build of rigid space solar panels are beautiful, and we are thrilled to share a first look at the hardware. We are proud of our team and proud to support our customers as we scale production.
December 17, 2025 at 7:27 PM
Another customer shipment is complete! Our latest build of rigid space solar panels are beautiful, and we are thrilled to share a first look at the hardware. We are proud of our team and proud to support our customers as we scale production.
A new paper in Joule highlights how Solestial’s self-healing silicon solar technology enables scalable, resilient power generation in space. Featuring research by Mario A. Mejía Escobar and Carlos Algora of @upm.es. Read more: bit.ly/4pdJFqS
December 9, 2025 at 4:10 PM
A new paper in Joule highlights how Solestial’s self-healing silicon solar technology enables scalable, resilient power generation in space. Featuring research by Mario A. Mejía Escobar and Carlos Algora of @upm.es. Read more: bit.ly/4pdJFqS
From university research to orbit 🚀. Preesha Kumar’s @asunewsofficial.bsky.social feature spotlights Solestial’s journey from @arizonastateuni.bsky.social MacroTechnology Works to space.
Read how Solestial is scaling its radiation-hardened silicon solar technology: news.asu.edu/20251204-bus...
Read how Solestial is scaling its radiation-hardened silicon solar technology: news.asu.edu/20251204-bus...
From lab to orbit: Solestial's takeoff from research to startup | ASU News
In 2026, Bulgarian satellite company EnduroSat AD is slated to launch its most advanced satellites yet — and the technology powering them was born at Arizona State University.
news.asu.edu
December 8, 2025 at 4:28 PM
From university research to orbit 🚀. Preesha Kumar’s @asunewsofficial.bsky.social feature spotlights Solestial’s journey from @arizonastateuni.bsky.social MacroTechnology Works to space.
Read how Solestial is scaling its radiation-hardened silicon solar technology: news.asu.edu/20251204-bus...
Read how Solestial is scaling its radiation-hardened silicon solar technology: news.asu.edu/20251204-bus...
We’re thrilled to be featured in PV Magazine USA! 🌞🚀 Check out the article about our recent Space Act Agreement with NASA’s Glenn Research Center to advance ultrathin-silicon solar arrays for space: pv-magazine-usa.com/2025/12/04/u...
U.S. solar manufacturers ink spacecraft deals
An Arizona manufacturer struck an research agreement with NASA, while a company in Colorado will supply thin-film solar to an unnamed private spacecraft company.
pv-magazine-usa.com
December 4, 2025 at 5:44 PM
We’re thrilled to be featured in PV Magazine USA! 🌞🚀 Check out the article about our recent Space Act Agreement with NASA’s Glenn Research Center to advance ultrathin-silicon solar arrays for space: pv-magazine-usa.com/2025/12/04/u...
We are excited to announce a new Space Act Agreement with NASA’s Glenn Research Center to advance the resilience of ultrathin silicon solar arrays in lunar and orbital environments. Learn more in our press release: bit.ly/4iC4w4L
December 3, 2025 at 4:00 PM
We are excited to announce a new Space Act Agreement with NASA’s Glenn Research Center to advance the resilience of ultrathin silicon solar arrays in lunar and orbital environments. Learn more in our press release: bit.ly/4iC4w4L
Solestial solar power modules are engineered for space with an ultrathin design and very low mass. At only 272 microns and 340 - 400 g/m2 depending on mission specifics, the result is more power, lighter launches, and greater design flexibility for next generation spacecraft.
November 25, 2025 at 4:16 PM
Solestial solar power modules are engineered for space with an ultrathin design and very low mass. At only 272 microns and 340 - 400 g/m2 depending on mission specifics, the result is more power, lighter launches, and greater design flexibility for next generation spacecraft.
Our 1-meter-wide flexible solar modules can be paired with various substrates to form lightweight blankets, rigid panels, or picture-frame integrations.
This flight model weighs just 600 g/m², rolls around 10 cm mandrels, and is built for compact launch and efficient deployment.
This flight model weighs just 600 g/m², rolls around 10 cm mandrels, and is built for compact launch and efficient deployment.
November 19, 2025 at 4:20 PM
Our 1-meter-wide flexible solar modules can be paired with various substrates to form lightweight blankets, rigid panels, or picture-frame integrations.
This flight model weighs just 600 g/m², rolls around 10 cm mandrels, and is built for compact launch and efficient deployment.
This flight model weighs just 600 g/m², rolls around 10 cm mandrels, and is built for compact launch and efficient deployment.
We teamed up with Vention to automate solar cell manufacturing and boost our throughput by 30x.
Our thin, flexible, radiation-hardened solar tech is scaling fast to make energy abundance possible for any application in space.
🎥 Watch the case study: bit.ly/47rmumz
Our thin, flexible, radiation-hardened solar tech is scaling fast to make energy abundance possible for any application in space.
🎥 Watch the case study: bit.ly/47rmumz
Customer Story - Automating Solar Cell Manufacturing with Solestial
Solestial is redefining solar for space with its next-generation silicon photovoltaics—offering space-stable performance at a fraction of the cost of traditional III-V multijunction cells. To scale production and bring their breakthrough technology to orbit faster, Solestial turned to Vention’s Full-Stack Automation Platform to automate wafer handling with precision and reliability. Using cloud-based simulation, they validated every motion before deployment—de-risking their automation investment and accelerating time to scale. 🔗 Read the full story: vention.io/customer-stories/solestial-226
bit.ly
November 12, 2025 at 4:55 PM
We teamed up with Vention to automate solar cell manufacturing and boost our throughput by 30x.
Our thin, flexible, radiation-hardened solar tech is scaling fast to make energy abundance possible for any application in space.
🎥 Watch the case study: bit.ly/47rmumz
Our thin, flexible, radiation-hardened solar tech is scaling fast to make energy abundance possible for any application in space.
🎥 Watch the case study: bit.ly/47rmumz
Our vision for rad-hard, lightweight Si PV for space is taking shape!
Solestial now produces 1-meter-wide flexible solar power modules. The next generation of our flight-proven design will fly in early 2026 and advances scalable power for the next generation of spacecraft.
Solestial now produces 1-meter-wide flexible solar power modules. The next generation of our flight-proven design will fly in early 2026 and advances scalable power for the next generation of spacecraft.
November 5, 2025 at 4:17 PM
Our vision for rad-hard, lightweight Si PV for space is taking shape!
Solestial now produces 1-meter-wide flexible solar power modules. The next generation of our flight-proven design will fly in early 2026 and advances scalable power for the next generation of spacecraft.
Solestial now produces 1-meter-wide flexible solar power modules. The next generation of our flight-proven design will fly in early 2026 and advances scalable power for the next generation of spacecraft.
We’re proud to be featured in Vention’s Demo Day, showcasing innovators transforming manufacturing with automation.
At Solestial, we’re scaling production of our radiation-hardened silicon solar technology for space: smarter, faster, and more sustainably.
Watch the full event: bit.ly/47ty8MD
At Solestial, we’re scaling production of our radiation-hardened silicon solar technology for space: smarter, faster, and more sustainably.
Watch the full event: bit.ly/47ty8MD
October 29, 2025 at 4:37 PM
We’re proud to be featured in Vention’s Demo Day, showcasing innovators transforming manufacturing with automation.
At Solestial, we’re scaling production of our radiation-hardened silicon solar technology for space: smarter, faster, and more sustainably.
Watch the full event: bit.ly/47ty8MD
At Solestial, we’re scaling production of our radiation-hardened silicon solar technology for space: smarter, faster, and more sustainably.
Watch the full event: bit.ly/47ty8MD
We’re growing! 🚀
Please join us in welcoming our newest Solestians who joined the team in Q3.
Each of them brings unique talents to our mission of delivering affordable and scalable solar power for space. Together, we’re pushing the boundaries of what’s possible for space solar tech.
Please join us in welcoming our newest Solestians who joined the team in Q3.
Each of them brings unique talents to our mission of delivering affordable and scalable solar power for space. Together, we’re pushing the boundaries of what’s possible for space solar tech.
October 22, 2025 at 3:59 PM
We’re growing! 🚀
Please join us in welcoming our newest Solestians who joined the team in Q3.
Each of them brings unique talents to our mission of delivering affordable and scalable solar power for space. Together, we’re pushing the boundaries of what’s possible for space solar tech.
Please join us in welcoming our newest Solestians who joined the team in Q3.
Each of them brings unique talents to our mission of delivering affordable and scalable solar power for space. Together, we’re pushing the boundaries of what’s possible for space solar tech.
Process Engineer Jeff prepares silicon wafers for Solestial’s sputtering tool.
With customer demand for our solar cells and modules surging, our dedicated team continues to increase throughput to deliver the next generation of solar technology for space.
With customer demand for our solar cells and modules surging, our dedicated team continues to increase throughput to deliver the next generation of solar technology for space.
October 15, 2025 at 4:20 PM
Process Engineer Jeff prepares silicon wafers for Solestial’s sputtering tool.
With customer demand for our solar cells and modules surging, our dedicated team continues to increase throughput to deliver the next generation of solar technology for space.
With customer demand for our solar cells and modules surging, our dedicated team continues to increase throughput to deliver the next generation of solar technology for space.
We are honored to be featured by ASU Corporate and Economic Development on LinkedIn! A heartfelt thank you to the Arizona State University community, its people, and its programs for all the support!
bit.ly/4qbjqlS
bit.ly/4qbjqlS
Innovation Zone Tenant Spotlight!
☀️ Meet Solestial ☀️
Born from groundbreaking research at Arizona State University, Solestial, Inc. is redefining what’s possible for silicon solar power in… | ASU...
Innovation Zone Tenant Spotlight!
☀️ Meet Solestial ☀️
Born from groundbreaking research at Arizona State University, Solestial, Inc. is redefining what’s possible for silicon solar power in space....
bit.ly
October 14, 2025 at 4:45 PM
We are honored to be featured by ASU Corporate and Economic Development on LinkedIn! A heartfelt thank you to the Arizona State University community, its people, and its programs for all the support!
bit.ly/4qbjqlS
bit.ly/4qbjqlS
Solestial is partnering with EnduroSat to power its next-generation ESPA-class satellite, FRAME, launching in 2026. Our radiation-hardened silicon solar modules will provide reliable, high-performance power in orbit. Read the complete announcement: bit.ly/3KFmXbM
October 8, 2025 at 4:20 PM
Solestial is partnering with EnduroSat to power its next-generation ESPA-class satellite, FRAME, launching in 2026. Our radiation-hardened silicon solar modules will provide reliable, high-performance power in orbit. Read the complete announcement: bit.ly/3KFmXbM
Principal Engineer Sergey Nastachkin works on Solestial’s custom plating tank.
Copper plating isn’t new, but we’ve built a unique system for our silicon wafers, from process control to waste management.
Innovation is in both our solar cells and the tools we use to make them.
Copper plating isn’t new, but we’ve built a unique system for our silicon wafers, from process control to waste management.
Innovation is in both our solar cells and the tools we use to make them.
October 2, 2025 at 4:11 PM
Principal Engineer Sergey Nastachkin works on Solestial’s custom plating tank.
Copper plating isn’t new, but we’ve built a unique system for our silicon wafers, from process control to waste management.
Innovation is in both our solar cells and the tools we use to make them.
Copper plating isn’t new, but we’ve built a unique system for our silicon wafers, from process control to waste management.
Innovation is in both our solar cells and the tools we use to make them.
Solestial is hiring in Tempe, AZ:
🚀 Environmental Health & Safety Coordinator: bit.ly/4nf0GQr
🚀 Quality Manager: bit.ly/46hKpEq
Be part of the team building the next generation of affordable, durable, and scalable solar solutions for space.
🚀 Environmental Health & Safety Coordinator: bit.ly/4nf0GQr
🚀 Quality Manager: bit.ly/46hKpEq
Be part of the team building the next generation of affordable, durable, and scalable solar solutions for space.
September 24, 2025 at 5:31 PM
Solestial is hiring in Tempe, AZ:
🚀 Environmental Health & Safety Coordinator: bit.ly/4nf0GQr
🚀 Quality Manager: bit.ly/46hKpEq
Be part of the team building the next generation of affordable, durable, and scalable solar solutions for space.
🚀 Environmental Health & Safety Coordinator: bit.ly/4nf0GQr
🚀 Quality Manager: bit.ly/46hKpEq
Be part of the team building the next generation of affordable, durable, and scalable solar solutions for space.
One advantage of Solestial’s Si heterojunction tech (HJT) is its lower temp coefficient.
Compared to p-type diffused junction cells (PERC), Solestial degrades just -0.24% per °C, compared to -0.34%. At 80°C, our 20% cells deliver +1% absolute / +6% relative efficiency.
Compared to p-type diffused junction cells (PERC), Solestial degrades just -0.24% per °C, compared to -0.34%. At 80°C, our 20% cells deliver +1% absolute / +6% relative efficiency.
September 17, 2025 at 6:31 PM
One advantage of Solestial’s Si heterojunction tech (HJT) is its lower temp coefficient.
Compared to p-type diffused junction cells (PERC), Solestial degrades just -0.24% per °C, compared to -0.34%. At 80°C, our 20% cells deliver +1% absolute / +6% relative efficiency.
Compared to p-type diffused junction cells (PERC), Solestial degrades just -0.24% per °C, compared to -0.34%. At 80°C, our 20% cells deliver +1% absolute / +6% relative efficiency.