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NASA Innovative Advanced Concepts

SPS-ALPHA: The First Practical Solar Power Satellite via Arbitrarily Large PHased Array

Completed Technology Project

Project Introduction

SPS-ALPHA (Solar Power Satellite via Arbitrarily Large Phased Array) is a novel, bio-mimetic approach to the challenge of space solar power. If successful, this project will make possible the construction of huge platforms from tens of thousands of small elements that can deliver remotely and affordably 10s to 1,000s of megawatts using wireless power transmission to markets on Earth and missions in space. The selected NIAC project will enlist the support of a world-class international team to determine the conceptual feasiblity of the SPS-ALPHA by means of integrated systems analyses, supported by selected "proof-of-concept" technology experiments.

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Project Duration

Technology Maturity (TRL)

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This is a historic project that was completed before the creation of TechPort on October 1, 2012. Available data has been included. This record may contain less data than currently active projects.

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