Capitalism in space: Orbit Fab is now offering to launch for satellite customers an orbital hydrazine fuel depot, essentially a “gas station” in space, that can be used to refill that fuel on geosynchronous satellites.

Orbit Fab, a startup developing infrastructure for in-space refueling of spacecraft, will start offering hydrazine for satellites in geostationary orbit as soon as 2025 at a price of $20 million.

The company announced Aug. 30 its plans to start offering refueling services for GEO spacecraft using a depot and “fuel shuttle” spacecraft. That depot will also be able to support spacecraft such as servicing vehicles that can travel to the depot for “self-service” refueling.

At the $20 million price announced by Orbit Fab, the company would provide up to 100 kilograms of hydrazine. It’s the first time that the company has set a price for providing fuel, a move it says it made to help potential customers better understand the economics of refueling.

The depot would be placed in orbit slightly above that of geosynchronous satellites. A shuttle robot would dock with it, obtain the fuel, and then fly to a customer’s satellite, dock and refuel it. If that shuttle is built by Orbit Fab, the customer’s satellite will need the company’s standard refueling port. For geosynchronous satellites without that port, Orbit Fab is willing to partner with other orbital refueling and satellite servicing spacecraft, such as Northrop Grumman’s and Astroscale’s repair robot satellites.

This plan has several firsts. It is the first to offer a price for a specific amount of fuel. It also appears to be the first to refuel the hydrazine in satellites. Finally, it illustrates the on-going compartmentalization of the satellite servicing industry. Some companies are making tugs. Some are launching repair robots. Others are making robots to remove space junk. And Orbit Fab is going to build fuel stations where everyone else can get fuel.