Light ion beam fusion is an approach to electrical power production in which intense beams of low atomic number ions would be used to drive inertial confinement fusion (ICF) targets to ignition and gain. We anticipate that an Engineering Test Facility (ETF) designed to demonstrate moderate yield with a repetition rate would be a major step along the route to an ICF demonstration power plant. In the present paper, we will describe our vision of how ongoing light ion beam and pulsed power research at Sandia National Laboratories (SNL) might be utilized for ETF and eventual inertial fusion energy (IFE) applications.