Reliable energy supply is still missing in large parts of many developing countries. In light of this, Technik ohne Grenzen e.V. is intensively engaged in the field of energy and energy supply. Within the the working group Energy, the organisation is mainly concerned with the expansion of the power supply of hospitals and other public buildings. Projects deal, for example, with the planning, procurement and installation of photovoltaic systems. As always, sustainability and the training of local specialists play a central role.