CUBE_SAT_PYRO · Cube satellite embedding pyroelectric modules to harvest energy in space

Can we find new sources of energy in space? This project aims to explore pyroelectric materials as an alternative or complement to photovoltaic panels. Unlike solar panels, which require continuous sunlight, pyroelectric energy harvesters convert thermal variations into electricity, offering an alternative energy solution in space.For the first time, this study will assess the potential of pyroelectric energy harvesters directly in space. Pyroelectric modules will be selected, prepared, mounted on a cube satellite, and launched in space in low earth orbit. The harvested energy will be measured in situ in space. The measurement data will be sent from the satellite and collected via a ground station built in our premises. The objective of this project is to show that this pyroelectric element can generate an electric energy density of 200 J/kg per thermal cycle and a continuous power density of 1 W/kg, which would show that pyroelectric energy harvesting is a convincing solution to produce electric energy in space. The project is structured in five work packages addressing the key scientific and technological challenges but also focusing on a strong exploitation plan. The first work package is about pyroelectric materials. The harvesting modules and their associated electronics will be developed in the second one, both occurring before launch. Post-launch, the third work package will analyse thermal cycling behaviour in space, whereas the fourth one will evaluate long-term reliability, notably assessing radiation effect on pyroelectric harvesters for several months. Finally, the last work package is dedicated to project management and exploitation strategies, in which we will look for partners after the intellectual property is secured. By demonstrating the feasibility of pyroelectric energy harvesting in space, this project will offer a new electric power source for satellites and space missions, broadening the possibilities for future space exploration.