TRITON 5N monopropellant thrusters and integrated propulsion module
TRITON 5N is the designation used by Arkadia Space for a class of monopropellant thrusters that deliver approximately 5 newtons of thrust and are integrated into a complete propulsion subsystem including tanks, valves, plumbing, and control electronics.[1][2][4][5] For the Reflex Aerospace mission, Arkadia will supply a propulsion module featuring TRITON 5N thrusters, seven‑litre propellant tanks and flight electronics developed and manufactured in Castellón, providing a compact system suited to a roughly 200‑kilogram satellite.[1][2][9]
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Green hydrogen production via electrolysis (Castellón plant)
Green hydrogen production via electrolysis uses electricity from renewable sources, such as wind and solar, to split water into hydrogen and oxygen in an electrolyser, yielding hydrogen with no direct carbon emissions; in Castellón, BP and Iberdrola are commissioning a 25‑megawatt electrolyser to supply green hydrogen mainly to a local refinery, replacing fossil‑based hydrogen. While this plant is not directly the source of Arkadia’s satellite propellant, it illustrates the broader local ecosystem of hydrogen technologies and the region’s experience in producing hydrogen classified as "green" under European standards.
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Hydrogen peroxide-based green chemical propulsion
Hydrogen peroxide‑based green chemical propulsion uses high‑concentration hydrogen peroxide as the oxidizer, combined either with a proprietary fuel (in bipropellant systems) or decomposed alone in monopropellant configurations, to generate hot gas that produces thrust for satellites and spacecraft.[1][6] It is termed "green" because hydrogen peroxide is significantly less toxic and easier to handle than hydrazine, the traditional spacecraft propellant, reducing ground handling risks and infrastructure requirements while still enabling efficient orbital manoeuvres, attitude control, and deorbiting.[5]
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