Space Solar Power Initiative (SSPI) is a multi-year research in the field of Space Solar Power Initiative conducted by Caltech team in collaboration with Northrop Grumman (NG) Aerospace and Mission Systems division.

SSPI approach: • Enabling technologies developed at Caltech • Ultra-light deployable space structures • High efficiency ultra-light photovoltaic (PV) • Phased Array and Power Transmission • Integration of concentrating PV, radiators, MW power conversion and antennas in single cell unit • Localized electronics and control for system robustness, electronic beam steering • Identical spacecraft flying in formation • Target is specific power over 2000 Watts per kilogram. This would cost competitive with ground-based power.

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