MANY MINDEDU.S. DOE Funds Space Solar Cell Research to Meet Rigorous Space Requirements
The U.S. Department of Energy has opened a $12 million research solicitation for space solar cell manufacturing, requiring cells to withstand extreme conditions in orbit. Track 1 allocates $8 million for high-performance, durable space-grade solar cells, while Track 2 provides $4 million for high-volume production processes and prototype demonstrations. Applications must be submitted by October 8, 2026, with selections expected by December 2026.
The program mandates specific technical thresholds: III-V solar cells must achieve at least 27% efficiency with greater than 95% yield after five wafer reuses; crystalline silicon cells must retain 80% peak power after missions exceeding 10 years; and perovskite tandem designs must exceed 30% efficiency with thermal cycling and UV resistance. This research directly addresses supply chain constraints, including China’s December 2024 ban on gallium and germanium exports to the U.S., which renews November 27, 2026.
These advancements aim to reduce radiation damage costs for long-duration satellite missions. By enabling more resilient space solar power systems, the program could lower operational expenses for future space-based energy applications. The initiative also advances security through more reliable satellite infrastructure.
Key caveats: Funding amounts and project numbers are preliminary estimates; all technical specifications and dates are as stated in the source; the program is a solicitation for research, not finalized outcomes. Vanguard 1’s 1958 launch is noted but the source provides no information about its replacements or current status.
Source: pv magazine