Electric satellite propulsion in 2026: overview
Electric satellite propulsion uses electrical energy to accelerate propellant, producing efficient but relatively low thrust. It supports station keeping, orbit transfers and deep-space travel, where reducing propellant use can extend mission capability. The trade-off is that spacecraft need a reliable power supply and often must thrust over long periods. Hall-effect and gridded-ion thrusters are established options; compact satellites are also driving interest in electrospray and pulsed-plasma designs.
Recent work is pushing into air-breathing propulsion for very low Earth orbit, where atmospheric gases could supply propellant. In October 2026, researchers reported on intake-wall degradation and design optimization; in July 2026, JAXA and Kobe University published an on-orbit proof-of-concept for an air-breathing ion engine. Muon Space reported a zinc-propellant Hall thruster firing in space in September 2026. These directions bring new engineering demands: intake durability, discharge stability and propulsion systems that fit a spacecraft’s power and control constraints.
- 1VLEO needs durable intakes: Air-breathing propulsion could reduce dependence on stored propellant, but intake-wall degradation and atmospheric-flow characterization remain key technical hurdles.
- 2Propellant options broaden: Muon Space’s September 2026 zinc-propellant Hall-thruster firing points to continued exploration of alternatives to conventional noble-gas propellants.
- 3Control matters in orbit: Research on Hall-thruster discharge warnings and thrust-vector control reflects a shift toward managing propulsion behavior during complex missions, not just optimizing bench performance.
Top organizations working on electric satellite propulsion
Ranked by Linknovate activity score · last 24 monthsThe activity score adds up the relevance of every patent, publication, grant and news item linking an organization to electric satellite propulsion. Showing 7 of 319 organizations.
| # | Organization | Approach | Signals (24 mo) | Momentum | Why it matters |
|---|---|---|---|---|---|
| 1 | 
NASA
Research · United Kingdom |
General | PUB 1 · NEWS 376 | +6% | NASA develops electric propulsion for small spacecraft and deep-space missions. Recently, its Jet Propulsion Laboratory fired a lithium-fed electric-thruster prototype five times in a vacuum chamber. |
| 2 | 
European Space Agency
Research · France |
Hall-effect thrusters | PUB 10 · NEWS 111 | -5% | ESA’s MicroHETSat mission used a 100-W-class Hall-effect system to test electric propulsion on a micro-satellite platform. |
| 3 | 
Airbus
Corporate · France |
Gridded ion thrusters | PAT 2 · PUB 3 NEWS 170 |
-35% | Recently, Airbus filed a patent concerning in-flight testing of a gridded-ion thruster. |
| 4 | 
Japan Aerospace Exploration Agency
Research · Japan |
Gridded ion thrusters | PAT 2 · PUB 18 NEWS 38 |
+15% | Recently, JAXA developed and tested a microwave-discharge ion-engine system. Its propulsion work also includes a 6-kW-class Hall-thruster subsystem and an air-breathing ion-engine concept for very low Earth orbit. |
| 5 | 
Harbin Institute of Technology
Research · China |
Hall-effect thrusters | PUB 64 | +6% | Harbin Institute of Technology researches Hall-thruster discharge behavior, stability, and propellants, including krypton. Its work also examines control of abnormal discharge states. |
| 6 | 
Jet Propulsion Laboratory
Research · United States |
General | NEWS 39 | +190% | JPL develops and operates electric propulsion for NASA missions. Recently, it fired a lithium-fed thruster prototype five times in a vacuum chamber. |
| 7 | 
California Institute of Technology
Research · United States |
Hall-effect thrusters | PUB 28 · NEWS 9 | -24% | Caltech contributes to electric-propulsion mission work, including the Psyche spacecraft’s solar-electric propulsion system, and researches first-principles models of electron transport in Hall thrusters. |
| 8 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 9 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
| 10 | ··Hidden organizationCompany | Approach | PAT 00 · PUB 00 GRANTS 0 · NEWS 00 | +00% | Available to registered users. |
Startups to watch and leading research centers
Startups to watch 14 total
MagdriveUnited KingdomMagdrive is developing electric spacecraft propulsion using solid metal propellant, with concepts aimed at improving thrust and spacecraft maneuverability.
ienai SPACE S.L.Spainienai SPACE develops ionic-liquid electric-propulsion systems for nanosatellites and works on electrospray-thruster performance and monitoring electronics.- MLMagdrive LtdMagdrive is developing electric propulsion for spacecraft, including a metal-propellant concept and the larger Supermagdrive electromagnetic propulsion project.
- ··Hidden startupCountryAvailable to registered users, with funding and founding year.
- ··Hidden startupCountryAvailable to registered users, with funding and founding year.
Leading research institutions 249 total
- European Space AgencyFranceESA’s MicroHETSat mission used a 100-W-class Hall-effect system to test electric propulsion on a micro-satellite platform.
- Japan Aerospace Exploration AgencyJapanRecently, JAXA developed and tested a microwave-discharge ion-engine system. Its propulsion work also includes a 6-kW-class Hall-thruster subsystem and an air-breathing ion-engine concept for very low Earth orbit.
- Harbin Institute of TechnologyChinaHarbin Institute of Technology researches Hall-thruster discharge behavior, stability, and propellants, including krypton. Its work also examines control of abnormal discharge states.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
- ··Hidden research institutionCountryAvailable to registered users, with their key researchers.
Where electric satellite propulsion innovation happens
Share of documents with at least one organization from each country.
Open the interactive map with all 319 organizationsMain technical approaches
Last 24 months| Approach | What it is | Documents | Leading organizations |
|---|---|---|---|
| Hall-effect thrusters | Crossed electric and magnetic fields accelerate ions; the approach is efficient and established, but discharge stability and cathode life remain engineering challenges. | 621 |
NASA, European Space Agency, Harbin Institute of Technology |
| Gridded ion thrusters | Electrostatic grids accelerate ions to produce high specific impulse, but thrust is modest and grid erosion can limit operating life. | 116 |
NASA, BLUE, University of Alabama |
| Electrothermal thrusters | Electrical heating raises propellant temperature before expansion through a nozzle; the hardware is relatively simple, but performance is limited by thermal efficiency. | 304 |
NASA, European Space Agency, HALL |
| Pulsed plasma thrusters | Electrical discharges ablate solid propellant in pulses, enabling compact systems, but low thrust and pulsed operation can complicate precise control. | 143 |
Bauman Moscow State Technical University, NASA, Honeywell |
| Electrospray thrusters | Electric fields emit charged droplets or ions from a liquid propellant, enabling compact, fine-control systems, but low thrust and emitter durability are concerns. | 129 |
Massachusetts Institute of Technology, NASA, National Aeronautics and Space Administration Stellar Solutions Inc. |
| Magnetoplasmadynamic thrusters | Electromagnetic forces accelerate high-current plasma and can support higher thrust, but the approach demands substantial power and durable electrodes. | 239 |
NASA, Jet Propulsion Laboratory, Northrop Grumman |
Emerging trends
Last 12 months vs previous 36 monthsTerms whose frequency in the last 12 months grew the most compared with the previous 36 months.
Funding and investment
Recent funding rounds
Funding data lists $149,687,320 across 67 grants since 2020. Magdrive raised $10,500,000 in a seed round in March 2025.
Patent landscape
Top patent holders · last 24 monthsRecent developments
Latest news, duplicates removed- Sep 2026A satellite engine that uses atmospheric gases as fuel shows promise in laboratory tests and modeling, but its performance on a mission remains unproven. Choosing an orbit for a satellite involves balancing benefits and…SciTechDaily
- Aug 2026Smaller, smarter, and more efficient propulsion systems are key to extending satellite life, enhancing maneuverability, and ensuring sustainable space operations in an increasingly crowded orbit. The satellite industry…Innovation News Network
- Jun 2026As the new Space Age kicks off in force, propulsion technologies are becoming a booming industry. Read more about the different types of propulsion in development. For more than half a century, spaceflight has relied on…Innovation News Network
- Jun 2026MIT’s new two-in-one space engine could turn tiny satellites into surprisingly capable deep-space explorers. Researchers at MIT are testing a new propulsion technology that could give small satellites a major boost in…SciTechDaily
- Month 20XXHidden developmentAvailable to registered users with alerts enabled.
Frequently asked questions about electric satellite propulsion
What companies are working on electric satellite propulsion?
NASA, Airbus, Safran, Honeywell and Rocket Lab are among the active organizations. NASA and the European Space Agency support propulsion research and missions, while Airbus and Safran develop thruster technologies. Rocket Lab announced a new electric-propulsion satellite thruster in April 2026. These organizations span research, spacecraft systems and commercial propulsion.
Which electric satellite propulsion startups are the most promising in 2026?
Magdrive and ienai SPACE are listed as startups developing electric spacecraft propulsion. Magdrive is working on solid-metal propellant concepts and pulsed-plasma propulsion; ienai SPACE develops ionic-liquid systems and electrospray thrusters for nanosatellites. The available facts identify their technologies and activity, but do not provide comparative performance or commercial-readiness data to rank them.
Which universities and research centers lead electric satellite propulsion research?
The Japan Aerospace Exploration Agency, European Space Agency and Harbin Institute of Technology are prominent research organizations. JAXA works on ion engines, Hall thrusters and air-breathing concepts; ESA has tested Hall-effect propulsion on a micro-satellite platform. Harbin Institute of Technology studies Hall-thruster discharge behavior, stability and propellants, including krypton.
How much funding has electric satellite propulsion received?
Funding data lists $149,687,320 across 67 grants since 2020. Separately, Magdrive raised $10,500,000 in a seed round in March 2025. These figures represent recorded grants and a named company round; they should not be treated as a complete measure of all investment in the field.
What were the latest electric satellite propulsion funding rounds?
The listed Magdrive seed round was $10,500,000 in March 2025; another entry reports the same amount in February 2025. The entries name investors including Balerion, Alumni Ventures, Outsized Ventures, 7percent, Redalpine and Founders Fund. The available funding records do not establish a later propulsion-specific round.
Who holds the most electric satellite propulsion patents?
Aerojet Rocketdyne and Hanwha Ocean Co., Ltd. lead the listed patent holders with 3 patents each. Japan Aerospace Exploration Agency, Rolls-Royce, Airbus, Accion Systems, ArianeGroup AG and Lilium GmbH are each listed with 2. These figures describe the patent-holder counts in the available facts, not a complete global patent census.
Is electric satellite propulsion patent activity growing?
No: the facts list 72 patents in the 24-month window and patent growth of -24.4%. Publication activity also declined, with 556 publications last year and growth of -3.1%. These figures indicate lower recent activity than the comparison periods, while research continues across thruster types and mission applications.
What are the latest developments in electric satellite propulsion?
Muon Space reported a zinc-propellant Hall thruster firing in space in September 2026. In September 2026, JAXA published work on a microwave-discharge ion-engine system; July 2026 research also described an on-orbit proof-of-concept for an air-breathing ion engine. Recent work further addresses air-intake durability and abnormal Hall-thruster discharge states.
What are the main approaches in electric satellite propulsion and how do they differ?
Hall-effect and gridded-ion thrusters accelerate ions electrostatically, with Hall systems using crossed electric and magnetic fields and gridded systems using ion-optics grids. Electrothermal thrusters heat propellant; pulsed-plasma systems ablate solid propellant; electrospray systems emit charged droplets or ions. Magnetoplasmadynamic thrusters accelerate plasma electromagnetically. Each approach trades thrust, efficiency, power needs and hardware lifetime differently.
Which countries lead electric satellite propulsion?
The United States leads the listed activity with 7,034 documents, followed by the United Kingdom with 2,685 and France with 2,340. China, with 2,053, and Germany, with 1,640, are also among the leading countries. These document counts indicate recorded activity, not necessarily national market share or technology leadership.
What are the applications of electric satellite propulsion?
Electric satellite propulsion is used for orbit raising and transfer, station keeping and maneuvering, very low Earth orbit, deep-space exploration, and small satellites and constellations. The facts show rising activity for orbit raising and transfer, up 34.4%, and very low Earth orbit, up 4.8%. Deep-space exploration is the largest listed application by document count.