The loan is expected to be used for the design, construction and operation a 70MW plant in the Ngounie Province and a 52MW plant in north Gabon, both run-of-the-river hydroelectric power plants.
AfDB head of infrastructure finance and PPP Neside Tas Anvaripour said that the project is expected to delivery energy at a competitive rate and help the country diversify from fossil fuels.
"The additional capacity will also expand electricity access to rural areas," added Anvaripour.
The project is expected to be completed in two years time.