Paul Jaffe, PhD, an electrical engineer in the US Naval Research Laboratory’s Spaceflight Engineering Department, discusses space-based solar power, power beaming (or the transfer of solar energy to the Earth via microwaves or lasers), how a useful constellation would look and function, potential cost and timeline, and more during an April 11, 2018, interview with Defense & Aerospace Report Editor Vago Muradian. The interview was conducted at the Navy League’s 2018 Sea-Air-Space Symposium outside of Washington. Our coverage was sponsored by Fincantieri Marine Group, Huntington Ingalls Industries and Leonardo DRS.