The World Bank, ESMAP and KTH Division of Energy Systems Analysis have developed National High Resolution Dynamic Least Cost Options Plan for Universal Access to Electricity in Nigeria, Tanzania and Zambia. The web-based open source application presented here allows the users to select scenarios based on electricity consumption targeted (Tiers of access) and spatially related fuel costs towards identifying the least cost electrification technology for every settlement at a 1 by 1 km resolution.