Space Power Grid.

The space industry has long been constrained by the amount of fuel and solar power a satellite can carry. Once onboard energy is exhausted, missions end, limiting the ambition of on‑orbit services such as high‑bandwidth communications or edge computing. StarCatcher’s “Space Power Grid” tackles this bottleneck by deploying a constellation of satellites that harvest, concentrate, and beam solar photons to the solar arrays of client spacecraft. By delivering multiple‑sun illumination, the system can multiply a satellite’s power output without requiring any hardware modifications on the customer side.

The architecture relies on the fact that commercial solar cells already convert photons in the 400‑1100 nm range with high efficiency. By increasing the photon flux—five suns, ten suns, or more—the same panels produce a linear boost in wattage, as demonstrated by the BepiColombo probe’s 12‑fold increase near Mercury. This approach eliminates the need for larger, heavier arrays, reduces launch costs, and extends end‑of‑life power margins. Operators can keep payloads active during eclipses, support power‑hungry AI processors, and quickly recover missions where a solar wing fails to deploy.

StarCatcher closed a $12.3 million seed round in July and secured an AFWERX Phase 1 award, underscoring defense interest in resilient power‑beaming. The company plans progressive ground‑based demonstrations through 2025, culminating in an orbital proof‑of‑concept launch in 2026. If successful, the technology could become a foundational service for low‑Earth‑orbit constellations, enabling continuous high‑throughput links, on‑demand power augmentation, and longer satellite lifespans. Investors, operators, and policymakers are watching closely, as a functional space‑based grid would reshape mission architecture and accelerate commercialization of deep‑space endeavors.