DEFINITION:

It includes all the possible power generation technologies used in space: photovoltaic, fuel cells, nuclear and thermo-electrical ones.

(Source: ESA TD 3B)

SUBDOMAINS:

1. Photovoltaic Generator Technology: including solar cells (crystalline and thin films), photovoltaic assembly and solar array technologies.
2. Fuel Cell Technologies
3. Nuclear and Thermo-Electric Power Generator Technologies