The Africa Power & Mining study, for the World Bank, sought to investigate options for the mining sector to become more reliant on the national grid for its power needs, thereby opening up options for exploiting large generation options with economies of scale and strengthening the national transmission system. The goal is to reduce power costs for the mines, while at the same time increasing the availability of power for the nation as a whole. The study included case studies of 8 countries (Guinea, Mauritania, Mozambique, Tanzania, Cameroon, DRC, Ghana and Zambia). The World Bank published a consolidated report that included other research entitled The Power of the Mine.