Reinforcement of the Electricity Transmission Network in Kenya (RETNet) The purpose of the project is to support Kenya's economic development by improving the reliability and efficiency of its electrical system and facilitating the penetration of renewable energies. The project includes the construction of a new National System Control Centre and of a new substation at Makindu, the completion of four substations around Nairobi, a capacity building program on operation/maintenance and system operation, and sectorial studies for the Ministry of Energy.