Solar technology company Arinna.xyz introduces ultrathin solar for space applications

Arinna.xyz – Namecheap customer – (United States)

Innovators across industries use .xyz domains to present new technologies and ideas online. 3D design learning platform Cademy.xyz offers live training in CAD modeling and computational design tools. Fashion supply chain platform Ympact.xyz supports traceability, data transparency, and impact measurement across global production networks. Energy technology company Superheat.xyz develops compute-powered thermal systems for homes and businesses. In this week’s #WebsiteWednesday, we’ll introduce you to a space solar company developing ultrathin photovoltaic technology for spacecraft: Arinna.xyz.

Arinna.xyz: Solar technology for space applications

Arinna.xyz is the online home of Arinna, a startup developing solar technology designed for space applications. According to the website, Arinna is building “ultra-thin, truly-flexible solar technology” with high power-per-mass and radiation resistance, which the website states is based on semiconductor research. As reported by TechCrunch, Arinna builds solar cells for spacecraft using ultrathin semiconductor materials. The publication also reported that Arinna raised a $4M seed round in March 2026 led by Spacecadet Ventures, with participation from Anorak Ventures and Breakthrough Energy.¹

Power systems for space infrastructure on Arinna.xyz

The startup’s website presents information about Arinna’s solar technology and its intended applications. Arinna.xyz states that the company is focused on powering space infrastructure at scale using lightweight solar systems. According to the website, the technology is designed to achieve high power output relative to weight while maintaining flexibility and durability in space environments. Supporting materials from Stanford’s Office of Technology Licensing state that the technology is based on ultrathin transition metal dichalcogenides (TMDs), which are semiconductor materials studied in nanoelectronics and adapted for photovoltaic use.² According to Arinna.xyz, “legacy solar is too heavy, costly and slow,” and current solar technologies “cannot meet the demand for space power.”

Introducing Koosha Nazif and Alexander Shearer, the founders behind Arinna

Arinna is led by Co-Founder and CEO Koosha Nazif and Co-Founder and CTO Alexander Shearer. As reported by TechCrunch, Koosha and Alexander met during doctoral research at Stanford University.³ According to LinkedIn, Koosha conducted research on flexible solar cell technologies based on ultrathin transition metal dichalcogenides during his time at Stanford University. Alexander conducted research on atomic layer deposition and microelectronics manufacturing processes at Stanford University. LinkedIn profiles also state that Koosha and Alexander were named Innovator Fellows at Breakthrough Energy.

Arinna uses a branded email address for company communications

Arinna uses the domain Arinna.xyz for its website and communications. The company lists info@arinna.xyz as a contact email for inquiries. Using a branded email address provides a direct point of contact for partners, collaborators, and others seeking information about the company and its technology. You can learn more by following the company on LinkedIn and by visiting Arinna.xyz.

^1. https://techcrunch.com/2026/03/25/arinna-4-million-seed-round-solar-energy-space-power-problem/
^2. https://otl.stanford.edu/researchers/high-impact-technology-hit-fund/hit-portfolio#sustainability/arinna-solar-energy
^3. https://techcrunch.com/2026/03/25/arinna-4-million-seed-round-solar-energy-space-power-problem/

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