We have started a new project (Phase-II) on the development for superconducting generators, which is scheduled from 2000 to 2003, following Phase I project. For commercialization, cost competitiveness of superconducting generators against conventional machines should be strongly pursued. From this viewpoint, the new project focuses onto mainly two targets; downsizing with improved generator ... [Show full abstract] output density, enhancement of the generator capacity with intention of cost reduction by the scale merits. In the first half of Phase-II, 2000-2001, primary fundamental design studies of 200 MW and 600 MW class machines were conducted reflecting and reviewing the Phase-I results. NbTi superconducting wires for the field windings are also under development.