Did you ever think that solar power generation in space could be 10x cheaper, 20% more efficient, and extend operational life to over 50 years? Well, that’s what the Arizona-based startup Solestial believes it can achieve with its silicon cell technology. We bring in CEO and cofounder Stan Herasimenka for his first-ever podcast to discuss the unique challenges and differences between terrestrial and space solar cells, and the technological advancements his company is making to produce radiation-hardened, thin, and flexible solar cells for space use.

Stan and Mo also cover:

Market potential for solar technology
Reengineering long-established technology
Solestial’s business model and scaling plans
Future trends in space solar

And much more…

• Chapters •

00:00 - Intro

00:36 - What are you building?

00:59 - What prompted Stan to start Solestial?

01:57 - Terrestrial vs extraterrestrial solar cells

05:10 - How long would a terrestrial solar cell last in space?

08:27 - Who are the main players?

11:02 - What is III-V?

12:25 - Supply/demand gap

16:03 - Core product offering

18:26 - What is the reason not to have a turnkey solution?

19:53 - Cost of activeness vs COTS

23:40 - Target cost of cells

24:30 - Why would a customer pay more for a premium solar cell?

27:37 - Self-curing radiation damage

30:52 - Perovskite cells

33:20 - Manufacturing and scaling

36:18 - Where is Solestial based?

37:01 - Customer traction

38:39 - Team makeup

40:18 - Financing plans?

41:51 - When will Solestial have their first array in space?

43:13 - What does Stan do when he's not talking about solar cells?

44:09 - Other companies Stan is excited about

• Show notes •

Solestial’s website — https://solestial.com/

Stan’s socials — https://www.linkedin.com/in/stan-herasimenka-5932561b/

Mo's socials — https://twitter.com/itsmoislam

Payload’s socials — https://twitter.com/payloadspace / https://www.linkedin.com/company/payloadspace

Pathfinder archive — Watch: https://www.youtube.com/@payloadspace Pathfinder archive — Listen: https://pod.payloadspace.com/episodes

• About us •

Pathfinder is brought to you by Payload, a modern space media brand built from the ground up for a new age of space exploration and commercialization. We deliver need-to-know news and insights daily to 19,000+ commercial, civil, and military space leaders. Payload is read by decision-makers at every leading new space company, along with c-suite leaders at all of the aerospace & defense primes. We’re also read on Capitol Hill, in the Pentagon, and at space agencies around the world.

Payload began as a weekly email sent to a few friends and coworkers. Today, we’re a team distributed across four time zones and two continents, publishing five media properties across multiple platforms:

1) Payload, our flagship daily newsletter, sends M-F @ 9am Eastern

2) Pathfinder publishes weekly on Tuesday mornings (pod.payloadspace.com)

3) Parallax, our weekly space science briefing, hits inboxes Thursday

4) Polaris, our weekly policy briefing, publishes weekly on Tuesdays

5) Payload Research, our weekly research and analysis piece, comes out on Wednesdays

You can sign up for all of our publications here: https://payloadspace.com/subscribe/

Breakthrough Solar, with Stan Herasimenka (Solestial)

Valley of Depth

Breakthrough Solar, with Stan Herasimenka (Solestial)