The solar power satellite concept - The past decade and the next decade

The concept of using space satellites to collect solar energy for earth use was first proposed in 1968. The present paper summarizes the results of various studies conducted since that time. The concept is now being evaluated by DOE and NASA. This evaluation will result in a recommendation as to whether the concept should be pursued further. A possible plan for the continued exploration of the concept is presented. The initial thrust of this plan would involve laboratory development and testing of selected system elements to answer key technological and environmental questions.