The weekly briefing on space-based solar power
Space Solar News

Solar energy beyond Earth — space-based solar power, spacecraft power systems and lunar surface energy. Weekly, engineering-grade, hype-free.

Latest briefing · September 26, 2026

What Henner Jahnke Just Got Right About Tracking Solar Economics

Jurchen Technology's Henner Jahnke challenges the tracker orthodoxy with hard numbers on high-density east-west arrays.

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September 26, 2026

Nuclear Batteries in Orbit: What Tritium Betavoltaics Mean for Lunar Surface Power

Tritium betavoltaic cells are being tested in space for the first time — here's what that demo proves, and what it still doesn't.

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September 25, 2026

Beyond Reach Labs Opens Brooklyn Facility to Scale High-Power Deployable Solar Arrays for Orbit

Brooklyn aerospace startup Beyond Reach Labs is building deployable high-power solar arrays at a new NYC facility — here's what it proves and what it doesn't.

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September 24, 2026

FCC's NEPA Waiver Vote and $100 Billion Spectrum Push: What Space Solar Operators Need to Know

The FCC's Sept. 30 NEPA waiver vote and a $100B spectrum auction pipeline reshape the regulatory terrain for power-beaming frequencies.

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September 23, 2026

JA Solar's Orbital HJT Demo Puts Space-Grade PV on the Lunar Economy's Critical Path

JA Solar's prototype HJT modules are now in Earth orbit — a hardware milestone that matters far beyond one manufacturer's roadmap.

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September 22, 2026

JA Solar's LEO Module Test: What a Terrestrial Giant's Orbit Bet Proves — and Doesn't

JA Solar launched a p-type heterojunction module into low Earth orbit for in-situ validation, but the company itself flags no orders and uncertain commercialization.

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September 19, 2026

Starship's First Orbital Attempt Is the Launch Cost Test Space Solar Has Been Waiting For

SpaceX's IFT-14 orbital flight attempt could reshape the economics that have blocked space-based solar power for decades.

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September 19, 2026

What Ning Liu Just Got Right About Building on Mars With Biology

A researcher's genetically engineered yeast could cut Mars construction costs by eliminating the need to ship building materials from Earth.

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September 18, 2026

BAE Systems' $16M RH45 Award Signals Radiation-Hardened Electronics Are Back on the Critical Path

A new $16M qualification contract for BAE Systems' RH45 microelectronics highlights the unglamorous bottleneck threatening every space power program.

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September 17, 2026

Idemitsu's US CIGS Lab Is a Bet That Thin-Film Wins the Space Solar Cell Race

A Japanese petroleum giant opens its first US lab for space-grade CIGS solar cells — here's what that signals for in-space power supply chains.

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