Vast

Vast Satellite (15 kW bus)

In Development

A high-power satellite bus line announced in May 2026, leveraging avionics, power systems, and flight software proven on Haven Demo. The inaugural 15 kW-class platform (700 kg dry mass, 350+ kg payload, 20+ kW peak payload power, 5-year design life, 350–1,200 km LEO) targets communications, Earth observation, national security, and orbital data-center constellations. A confidential first customer ordered 4 satellites with options for up to 200 more.

Latest update Jul 12, 2026

Vast Satellite (15 kW bus)

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Current status

Announced May 2026 with first order signed (4 satellites + options for up to 200)

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Specifications2

Solar power
15 kW (20+ kW payload peak)
Payload capacity
350+ kg (700 kg bus dry mass)

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Upcoming milestones1

Announced next steps from Vast that mention Vast Satellite (15 kW bus).

  1. Late 2027

    Launch first 10 Vast Satellite 15 kW buses

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