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Advanced Lightweight and Flexible Array with Mechanical Architecture

Objective

More and more missions require power supply > 25 kW such as solar electrical propulsion, high throughput satellites. However, the restricted volume between the fairing and the spacecraft sidewall limits the number & the dimension of rigid solar panels during launch. Therefore, the answer for this growing power demand lies neither in stacking more rigid solar arrays, nor by marginal efficiency improvements on III-V multi-junction solar cells, but rather in innovative/disruptive photovoltaic solutions. More solar cells per unit of volume are needed in stowed configuration, and flexible solar arrays are the only answer for this high-power challenge.

In this context, ALFAMA project brings answers for the mass, cost & power challenge, with ambitions at each level of the solar array:
- The mechanical architecture, with a modular & retractable deployment system
- The photovoltaic assembly fabrication process, with printed harness & lamination for easier integration, manufacturing and high voltage protection
- The PVA structure, with thin flexible layers for high power/mass & power/volume ratio, adapted to epitaxial lift-off
- The solar cells, with the development of highly efficient & lightweight III-V IMM lift-off cells.

ALFAMA brings together a team of 8 partners, leaders in their field, from 3 EU-member states, who will join their efforts towards the realization of a disruptive solar array technology (end TRL 4-5), with the following key performances:
1/ Power/mass ratio increased by ≥ 50% with III-V lift-off solar cells
2/ Cost reduction with high throughput assembly process
3/ Power density increased more than 4 times with compact stowed configuration
4/ Relevant roadmaps for space & non-space applications

ALFAMA's drastic improvements will enhance the EU space sector competitiveness, enable new missions and build synergies between space and non-space activities.

Call for proposal

H2020-SPACE-2018
See other projects for this call

Coordinator

AIRBUS DEFENCE AND SPACE NETHERLANDS BV
Address
Mendelweg 30
2333 CS Leiden
Netherlands
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
EU contribution
€ 904 728,10

Participants (7)

AIRBUS DEFENCE AND SPACE SAS
France
EU contribution
€ 80 188,75
Address
31 Rue Des Cosmonautes Zi Du Palays
31402 Toulouse Cedex
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
AIRBUS DEFENCE AND SPACE GMBH
Germany
EU contribution
€ 49 546,25
Address
Willy-messerschmitt-strasse 1
82024 Taufkirchen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
France
EU contribution
€ 828 543,15
Address
Rue Leblanc 25
75015 Paris 15
Activity type
Research Organisations
FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Germany
EU contribution
€ 539 185
Address
Hansastrasse 27C
80686 Munchen
Activity type
Research Organisations
AZUR SPACE SOLAR POWER GMBH
Germany
EU contribution
€ 220 000
Address
Theresienstrasse 2
74072 Heibronn
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
TF2 DEVICES B.V.
Netherlands
EU contribution
€ 294 797,50
Address
Heyendaalseweg 135
6525AJ Nijmegen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
ABSISKEY
France
EU contribution
€ 81 250
Address
41B Rue Dupetit Thouars
49000 Angers
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)