CESI Awarded Contract from SpaceTech for Solar Cells that Power Global Internet Satellites

CESI Awarded Contract from SpaceTech for Solar Cells that Power Global Internet Satellites

The Italian group CESI has secured a contract, with options valued at over one hundred million euros over five years, with Germany's SpaceTech GmbH, one of the world's leading companies in the production of space systems. According to the agreement, CESI is tasked with providing hundreds of thousands of solar cells over these five years, enough to equip eight satellites per month.

These cells will power American space satellites, providing them with the energy needed to bring the internet to every corner of our planet, including the poles. This is a strategically significant investment that places CESI and Italy at the forefront of the Space Economy.

"The recent contract signed with SpaceTech is not just a sign of our technological competence but also of our ability to be an integral part of ambitious projects. Space technologies will increasingly support terrestrial applications, thus contributing to the improvement of life on our planet. This implies profound expertise for their development in the years to come. CESI is ready for this challenge," says the CEO of the Group, Domenico Villani.

Within this context, CESI has leveraged proprietary technologies to design, produce, and test solar cells in its Milan laboratories. These cells now power over a hundred civilian satellites for clients across twenty-five countries worldwide. CESI's solar cells are made from materials like gallium arsenide and indium gallium phosphide, exceptionally suited to the harsh conditions of space, where common terrestrial silicon solar cells would not adequately withstand.

The Italian multinational has developed several groundbreaking technologies, including flexible cells that can conform to the surfaces of satellites or spacecraft, and the Integral Assembly. This innovation focuses on optimizing the cell assembly process, eliminating the need for protective glass and thereby reducing the weight and launch costs of satellites. CESI's cells are qualified for both low Earth orbit (LEO) and geostationary orbit (GEO) satellites.

Finally, the company stands as one of only four global manufacturers of these products and the sole proprietor with complete European control.

Space solar cells convert solar energy into electricity in harsh environmental conditions, providing power to satellites. They are light, compact, and highly efficient, crucial features for minimizing launch costs and maximizing satellite payload capacity. Moreover, they withstand extreme temperatures and radiation, ensuring a stable and continuous power supply. In short, they are an essential element for the functioning of satellites in orbit, devices for which a significant production increase is expected, given their use on various fronts beyond traditional telecommunications.

Click here to learn about CESI's Space Solar Cells listed on SatNow.

Publisher: SatNow

GNSS Constellations - A list of all GNSS satellites by constellations


Satellite NameOrbit Date
BeiDou-3 G4Geostationary Orbit (GEO)17 May, 2023
BeiDou-3 G2Geostationary Orbit (GEO)09 Mar, 2020
Compass-IGSO7Inclined Geosynchronous Orbit (IGSO)09 Feb, 2020
BeiDou-3 M19Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M20Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M21Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 M22Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 I3Inclined Geosynchronous Orbit (IGSO)04 Nov, 2019
BeiDou-3 M23Medium Earth Orbit (MEO)22 Sep, 2019
BeiDou-3 M24Medium Earth Orbit (MEO)22 Sep, 2019


Satellite NameOrbit Date
GSAT0223MEO - Near-Circular05 Dec, 2021
GSAT0224MEO - Near-Circular05 Dec, 2021
GSAT0219MEO - Near-Circular25 Jul, 2018
GSAT0220MEO - Near-Circular25 Jul, 2018
GSAT0221MEO - Near-Circular25 Jul, 2018
GSAT0222MEO - Near-Circular25 Jul, 2018
GSAT0215MEO - Near-Circular12 Dec, 2017
GSAT0216MEO - Near-Circular12 Dec, 2017
GSAT0217MEO - Near-Circular12 Dec, 2017
GSAT0218MEO - Near-Circular12 Dec, 2017


Satellite NameOrbit Date
Kosmos 2569--07 Aug, 2023
Kosmos 2564--28 Nov, 2022
Kosmos 2559--10 Oct, 2022
Kosmos 2557--07 Jul, 2022
Kosmos 2547--25 Oct, 2020
Kosmos 2545--16 Mar, 2020
Kosmos 2544--11 Dec, 2019
Kosmos 2534--27 May, 2019
Kosmos 2529--03 Nov, 2018
Kosmos 2527--16 Jun, 2018


Satellite NameOrbit Date
Navstar 82Medium Earth Orbit19 Jan, 2023
Navstar 81Medium Earth Orbit17 Jun, 2021
Navstar 78Medium Earth Orbit22 Aug, 2019
Navstar 77Medium Earth Orbit23 Dec, 2018
Navstar 76Medium Earth Orbit05 Feb, 2016
Navstar 75Medium Earth Orbit31 Oct, 2015
Navstar 74Medium Earth Orbit15 Jul, 2015
Navstar 73Medium Earth Orbit25 Mar, 2015
Navstar 72Medium Earth Orbit29 Oct, 2014
Navstar 71Medium Earth Orbit02 Aug, 2014


Satellite NameOrbit Date
NVS-01Geostationary Orbit (GEO)29 May, 2023
IRNSS-1IInclined Geosynchronous Orbit (IGSO)12 Apr, 2018
IRNSS-1HSub Geosynchronous Transfer Orbit (Sub-GTO)31 Aug, 2017
IRNSS-1GGeostationary Orbit (GEO)28 Apr, 2016
IRNSS-1FGeostationary Orbit (GEO)10 Mar, 2016
IRNSS-1EGeosynchronous Orbit (IGSO)20 Jan, 2016
IRNSS-1DInclined Geosynchronous Orbit (IGSO)28 Mar, 2015
IRNSS-1CGeostationary Orbit (GEO)16 Oct, 2014
IRNSS-1BInclined Geosynchronous Orbit (IGSO)04 Apr, 2014
IRNSS-1AInclined Geosynchronous Orbit (IGSO)01 Jul, 2013