The EU decarbonisation targets to reach climate neutrality by 2050 are ambitious. Ensuring the transition to carbon neutrality is just and fair is challenging. The EU-funded gEneSys project will focus on the gender and social inequalities in energy transition policies. Even though there are no gender indicators or targets in the Agenda 2030's SDG7, “access” and “affordable” are concepts that hide a multitude of power and gender inequality relations. As such, the project conceptualises energy transition as a gendered socio-technical innovation ecosystem emerging out of the interplay between the technological, policy, social, environmental, governance and economic subsystems. To integrate the gender perspective into each of these sub-systems, gEneSys will analyse the related sustainability visions, values and priorities, as well as the change actors and stakeholders.