Press release

SES’s O3b mPOWER System Receives Platinum
Space Sustainability Rating
Assessment based on an in-depth analysis of more than 65 parameters across deployment,
operations, and end-of-life disposal of the O3b mPOWER mission


Luxembourg, 2 June 2025 – O3b mPOWER, SES’s second-generation medium earth orbit (MEO)
system, has been awarded the Platinum badge by the Space Sustainability Rating (SSR)
Association. This is the highest possible SSR rating tier, and has been awarded to the O3b
mPOWER constellation of 13 high-throughput and low-latency satellites, eight of which are
already in orbit.

The O3b mPOWER mission was assessed across all phases: deployment, operations, and end-
of-life disposal. The Platinum rating for O3b mPOWER was based on an in-depth analysis of more
than 65 parameters, including: satellite count, orbital region, collision avoidance strategies,
adherence to recognised design and operational standards, and SES’s overall approach to data
sharing and transparency. SES is the second operator to receive a Platinum rating from the SSR,
and the sixth to be officially rated.

Rather than evaluating individual satellites in isolation, the SSR assesses the aggregate
sustainability impact of the entire constellation and considers how satellites interact, operate
collectively, and contribute to the broader space environment. This recognition indicates that the
O3b mPOWER constellation demonstrates minimal impact on the orbital environment beyond
what is necessary for mission success and reflects SES’s strong commitment to sustainable
space operations and adherence to internationally accepted best practices in space sustainability.

Prof. Jean-Paul Kneib, President of the SSR Association, Academic Director of EPFL Space
Center and Head of the Laboratory of Astrophysics (LASTRO), said, "The Space Sustainability
Rating provides an independent benchmark to encourage transparency among space actors,
promote best practices in space missions, and support the long-term preservation of the orbital
environment. The Platinum rating awarded to the O3b mPOWER constellation reflects SES’s
strong alignment with the SSR’s criteria across the full mission lifecycle. We celebrate this
recognition for the O3b mPOWER constellation and SES’s contribution to a safer, more
responsible, and resilient satellite ecosystem. As the SSR continues to evolve, it aims to drive
positive change across the space sector by highlighting leadership in space sustainability—such
as that demonstrated by SES—and to encourage the global space community to make informed,
sustainability-focused decisions."

Milton Torres, Chief Technology Officer of SES, said, “For 40 years, SES has been driving
responsible best practices and developing new technologies, partnerships and solutions
contributing to sustainable space. This Platinum badge not only highlights our leadership in
sustainable space operations but also reinforces our commitment to responsible and innovative
practices in the space industry, while supporting long-term space sustainability for all spacecraft
operators.”

For further information please contact:

Suzanne Ong
Communications
Tel. +352 710 725 500
suzanne.ong@ses.com

Rayane Maalouf
SSR Communications
contact@ssr.space

Follow us on:




Read our Blogs >
Visit the Media Gallery >


About SES

SES has a bold vision to deliver amazing experiences everywhere on Earth by distributing the highest
quality video content and providing seamless data connectivity services around the world. As a provider of
global content and connectivity solutions, SES owns and operates a geosynchronous earth orbit (GEO)
fleet and medium earth orbit (MEO) constellation of satellites, offering a combination of global coverage
and high-performance services. By using its intelligent, cloud-enabled network, SES delivers high-quality
connectivity solutions anywhere on land, at sea or in the air, and is a trusted partner to telecommunications
companies, mobile network operators, governments, connectivity and cloud service providers,
broadcasters, video platform operators and content owners around the world. The company is
headquartered in Luxembourg and listed on Paris and Luxembourg stock exchanges (Ticker: SESG).
Further information is available at: www.ses.com

About the SSR

The Space Sustainability Rating is a voluntary initiative launched by the World Economic Forum in 2016
and developed since 2018 by a consortium of academic and institutional partners including the European
Space Agency (ESA), Massachusetts Institute of Technology (MIT), BryceTech, and the University of Texas
at Austin. Created in consultation with industry, policy, and academic stakeholders, the SSR encourages
responsible behavior in space by evaluating missions against a set of transparent sustainability criteria.
The SSR provides a comprehensive framework for assessing the sustainability of space missions,
identifying areas for improvement, and offering operators a chance to communicate their sustainability
practices through independent, badge-based ratings: Bronze, Silver, Gold, or Platinum. Each SSR rating
also includes actionable recommendations to guide operators in enhancing sustainability practices over
time. This approach empowers responsible space actors to continuously evolve their mission strategies
and set new benchmarks for space stewardship.
For more information visit: https://spacesustainabilityrating.org/