Vast Moves Into Satellite Manufacturing With a High-Power Bus Line

From Space Stations to Satellite Platforms

Vast, best known for its work on commercial space stations, is expanding into satellite manufacturing with a new high-power satellite bus line. The company announced the move on May 19, saying the new product family will adapt technologies already developed for its station program into buses intended for applications including broadband communications, radar imaging, national security missions, and orbital data centers.

The decision is a notable diversification step for a company still building out its identity in commercial space. It also reflects a broader trend in the sector: firms that establish capabilities in one spacecraft domain increasingly look for adjacent markets where those systems can be repackaged into new products. In Vast’s case, the overlap between a commercial station and a high-power satellite appears substantial enough that the company believes it can productize it quickly.

The First Bus: 15 Kilowatts of Power

The initial platform in the new line is a flat-panel bus that provides 15 kilowatts of power. According to the source text, it measures roughly 2.2 by 3.6 meters, has a dry mass of 700 kilograms, and can host payloads of at least 350 kilograms. Designed initially for low Earth orbit, it also includes an electric propulsion system offering more than 500 meters per second of delta-v.

Those specifications place the bus in a part of the market where power availability becomes a differentiator. Communications payloads, onboard computing, advanced sensing, and data-intensive missions all benefit from more electrical headroom. Vast is positioning its bus around that demand, arguing that low-cost but high-power satellites are increasingly attractive across multiple sectors.

The bus will also be offered with an option to include Nvidia’s Vera Rubin Space-1 module, which the company says would provide computing capability for orbital data center and artificial intelligence applications. That pairing is especially telling. It shows Vast is not only chasing conventional satellite demand, but also leaning into the idea that future spacecraft may carry heavier processing loads and serve as infrastructure for data handling in orbit.

Built From Haven Program Overlap

Vast’s core argument for entering this market is that it already produces most of the underlying technology. The company says the bus emerged naturally from work on Haven-1, its planned single-module commercial space station set to launch next year. Many of the necessary systems, according to the source text, were already tested in space through Haven Demo, a satellite the company launched in November 2025 on a SpaceX rideshare mission for a four-month test flight.

The company says nearly all of the major technologies needed for the satellite bus are already part of its internal stack, with deployable solar arrays and electric thrusters cited as major exceptions. That claimed overlap matters because spacecraft manufacturing is difficult to scale when each product requires a new supply chain and engineering base. If Vast can genuinely share close to 100% of key systems between station and bus programs, it may gain cost and schedule advantages that new satellite entrants often lack.

It also means the bus is not being launched as an isolated experiment. Vast is presenting it as a derivative product from a larger hardware platform it is already investing in for other strategic reasons.

Why High-Power Satellites Are Attractive

Chief executive Max Haot told SpaceNews that more power is increasingly useful across communications, radar imaging, national security applications, and orbital data centers. That view matches a wider industry shift. As space missions take on more demanding payloads and more sophisticated onboard processing, power stops being a supporting metric and becomes a central sales feature.

Communications satellites need power for throughput. Imaging and sensing systems benefit from larger and more capable payloads. National security users often prioritize spacecraft that can do more on orbit without a large increase in fleet complexity. And the orbital data center concept, though still emerging, depends heavily on available onboard power and computing.

Vast is effectively betting that future demand will favor spacecraft buses that offer more electrical capacity without the traditional cost penalty associated with very large satellites.

Early Demand, at Least on Paper

The company says it already has one confidential customer for four spacecraft with an option for 200 more. Confidential orders can be difficult to evaluate from the outside, but the scale of the option indicates the type of market Vast hopes to serve: not one-off bespoke missions, but potentially larger constellations or programmatic deployments if the platform proves competitive.

The presence of even a single early customer matters because it suggests the announcement is tied to at least some active market validation rather than pure future positioning. At the same time, the source text does not identify the customer or the application, so it is too early to draw strong conclusions about how broad demand really is.

A Strategic Diversification Move

Haot described the satellite bus as a natural extension of Vast’s work and pointed to diversification as common among successful space companies. That rationale is straightforward. Commercial space station development is capital intensive, schedule sensitive, and exposed to policy and launch risk. A satellite product line may provide earlier revenue opportunities, broaden the customer base, and make better use of engineering and manufacturing capacity already being built for the station program.

If it works, the move could strengthen Vast’s resilience as a business. If it does not, it risks stretching a still-growing company across too many fronts at once. That is always the balance in space diversification: shared technology can create leverage, but execution in multiple hardware markets remains demanding.

The Broader Meaning

Vast’s announcement is about more than one 15-kilowatt bus. It reflects how the commercial space sector is evolving from isolated flagship missions toward modular product ecosystems. Companies increasingly want hardware platforms that can be reused, repackaged, and sold into neighboring markets, turning internal engineering achievements into a wider portfolio.

For customers, that can mean faster access to proven subsystems and potentially lower costs. For suppliers, it can mean stronger manufacturing continuity and more routes to scale. Vast is now trying to prove that station technology can become satellite infrastructure.

The opportunity is real if demand for high-power spacecraft keeps rising. Communications, defense, sensing, and orbital computing all point in that direction. The challenge will be execution: delivering a competitive bus while continuing to advance the space station business it came from. If Vast can manage both, the company may end up as more than a station builder. It may become a broader spacecraft manufacturer built around the idea that power, not just payload capacity, is becoming a defining currency in orbit.

This article is based on reporting by SpaceNews. Read the original article.