Solestial, Inc. is the solar energy company for space. Solestial’s core technology is a breakthrough ultra-thin silicon solar cell that can self-cure radiation damage at normal operating temperatures in space, packaged in a flexible, lightweight panel designed to achieve minimum degradation for up to 10 years in LEO. Solestial panels can be mass-produced using automated machines resulting in costs 90% lower than incumbent technologies, with virtually unlimited manufacturing capacity. From today’s satellite constellations and research projects to tomorrow’s utility-scale energy infrastructure and services in space, Solestial is powering the new space economy.
There is a demand for 100 MW of solar for space in the next 5 years. But the existing space solar panels are extremely expensive and very slow to manufacture. With today's technology 100 MW of space solar panels will cost more than $60B and it will take more than 10 years to manufacture. Solestial solves this problem.
Solestial is revolutionizing the access to power in space with space tolerant ultrathin silicon solar panels, which for the first time on the market, will have both high efficiency and low cost in a single light-weight and flexible package.
Join us as we disrupt the space solar industry!
There is a demand for 100 MW of solar for space in the next 5 years. But the existing space solar panels are extremely expensive and very slow to manufacture. With today's technology 100 MW of space solar panels will cost more than $60B and it will take more than 10 years to manufacture. Solestial solves this problem.
Solestial is revolutionizing the access to power in space with space tolerant ultrathin silicon solar panels, which for the first time on the market, will have both high efficiency and low cost in a single light-weight and flexible package.
Join us as we disrupt the space solar industry!
Location: United States, Arizona, Tempe
Employees: 11-50
Total raised: $27M
Founded date: 2013
Investors 4
| Date | Name | Website |
| - | Stellar Ve... | svc.vc |
| - | Nextwave X... | nxp.vc |
| 30.05.2023 | Industriou... | industriou... |
| 01.07.2025 | Crosscut V... | crosscut.v... |
Funding Rounds 2
| Date | Series | Amount | Investors |
| 15.05.2025 | Series A | $17M | - |
| 12.10.2022 | Seed | $10M | - |
Mentions in press and media 7
| Date | Title | Description |
| 15.05.2025 | Solestial Closes $17M in Series A Funding | Solestial, a Tempe, AZ-based solar energy company for space, raised $17M in Series A Funding. The round was led by AE Ventures. New investors included Crosscut Ventures, Zeon Ventures, and Mitsubishi Electric Corporation’s ME Innovation Fun... |
| 19.03.2025 | The Rise of Frontier Tech: Crosscut Ventures and the Future of Investment | In the heart of Los Angeles, a quiet revolution is brewing. Crosscut Ventures, a seed-stage venture capital firm, is at the forefront of this change. Founded in 2008, the firm has carved a niche in the bustling Southern California tech ecos... |
| 16.03.2025 | Crosscut Ventures: Interview With Co-Founder & Managing Director Brian Garrett About The Early-Stage Investment Firm | Crosscut Ventures is a seed-stage venture capital firm in Los Angeles that invests in startups that have the potential to scale, disrupt, and build large markets. Pulse 2.0 interviewed Crosscut Ventures co-founder and managing director Bria... |
| 06.08.2024 | Meyer Burger and Solestial sign partnership to scale up space-based solar module manufacturing | - |
| 12.10.2022 | Solestial Raises $10M in Seed Funding | Solestial, a Menlo Park, CA-based solar energy company for space, raised $10M in Seed Funding. The round was led by Airbus Ventures, with participation from AEI HorizonX, GPVC, Stellar Ventures, Industrious Ventures. The company intends to ... |
| 11.10.2022 | Solestial, Solar Energy Company for Space, Closes Oversubscribed $10M Seed Round | Solestial scientists develop solar panels at 90 percent lower cost Financing to Accelerate Delivery of Breakthrough Scalable Solar Technology for Space at One-Tenth Cost of Conventional Technology We’re on a mission to become the solar ener... |
| - | Solestial | “The Next Generation of Silicon Photovoltaics for Space Has Arrived. We are delivering the next generation of space-stable silicon photovoltaics. […]” |