The City of Galena, Alaska, has no connection to an outside power grid. The city currently depends on diesel generators for its electric power supply. Diesel generators have several drawbacks for the city such as high cost of operation and environmental pollution concerns. The U.S. Department of Energy concluded that a power generation facility based on Toshiba Corporation's "Super-Safe, Small and Simple" (4S) reactor is the best economic and environmental choice for Galena.