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Deep Space Energy raises €930k to develop compact 5×-efficient radioisotope generators for smallsats and lunar missions

Riga-based Deep Space Energy closed €930k in pre-seed funding and grants to develop a compact radioisotope power generator it says uses 5× less fuel than conventional RTGs. The device targets resilient smallsats and lunar-surface missions that must survive the two-week lunar night, with backing from ESA and NATO DIANA.

Discovered 2026-02-11T03:54:17.113359-08:00 | 2026-02-11T03:54:17.113359-08:00

Briefing

What Hype is tracking

The company claims ~5× lower radioisotope mass, which directly addresses continuous-power constraints for lunar surface operations and long-duration smallsat missions; it has closed ~€930k in early funding and grants.
ESA and NATO DIANA participation signals growing European and defence interest in sovereign, resilient power solutions — a complement to broader government efforts on continuous lunar power and demonstrator programs (see lunar power efforts and ESA in-orbit demonstrators).

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