The Bonneville Power Administration (BPA) is a Federal entity that manages the disposition of the energy produced by the Federal Columbia River Power System (FCRPS). BPA is using RiverWare to modernize its mid- and long-term modeling platforms. The current platform, in use for over 30 years, relies on flat-file input, FORTRAN executables, and binary output to provide forward guidance to the trading floor and resource programs. The RiverWare-centric adaption implements python-based RESTapi inputs, a SQL backend, and R/Shiny for visualization. We'll take a look at the new system, and some of the benefits.