Arinna Raises $4M Seed to Commercialize Ultrathin TMD Solar Panels for Space
83 FOMOArinna closed a $4M seed round led by Spacecadet Ventures (with Anorak Ventures and Breakthrough Energy Foundation). Capital will fund qualification panels, orbital demos by end of 2026, and scale roll-to-roll manufacturing toward megawatt-class production by 2028.
Why it matters
Power density and mass are the biggest constraints for proliferating satellites and orbital data centers. Arinna’s TMD tech could be the unlock — lighter, more efficient, and radiation-hard without heavy glass covers.
The numbers
Details
Funding
- Amount
- $4M
- Round
- seed
- Lead investors
- Spacecadet Ventures
- Announced
- 2026-03-25
Coverage
-
spacenews.com ·
Arinna Raises Seed Funding for Ultrathin Space Solar CellsArinna’s TMD-based panels promise higher efficiency and durability, addressing a key bottleneck for proliferating LEO constellations and in-orbit compute.
-
techcrunch.com ·
Arinna Raises $4M Seed Round to Solve the Space Power ProblemArinna, founded by Stanford PhDs Koosha Nazif and Alex Shearer, raised $4M seed led by Spacecadet Ventures to develop ultrathin TMD solar panels for spacecraft — 32% more efficient, lighter, and longer-lasting.
Related moments
- CubeCab · Funding 50
CubeCab submits DOE STTR Phase II application
- Astra Space · Funding 80
Astra Space seeks $250M at $1B valuation
- Portal Space Systems · Funding 84
Portal Space Systems Raises $50M Series A for Solar Thermal Propulsion Scale-Up
- SpaceX · Regulatory 96
SpaceX Files Confidential IPO Registration with SEC
- Starcloud · Funding 85
Starcloud Hits Unicorn Status with $170M Round for Orbital Data Centers
- Bellatrix Aerospace · Funding 78
Bellatrix Aerospace Raises $20M Pre-Series B for In-Space Propulsion Scale-Up
Veenie.Space Telemetry
Arinna closed a $4M seed round led by Spacecadet Ventures (with Anorak Ventures and Breakthrough Ene