Arthur D. Little, Inc. provided cost estimates of present and expected future terrestrial electric power generation and transmission systems. They also provided a framework for the requirements of future environmental assessment studies. The Grumman Aerospace Corporation provided all of the engineering studies on the special requirements and cost estimates for the Satellite Solar Power Station (SSPS) and the Power Relay Satellite (PRS) systems except for the microwave elements which were performed by the Raytheon Company. ECON, Inc. provided economic analysis and overall project management. The following persons were also responsibly associated with the study: Dr. Klaus Heiss and Mr. Gregg R. Fawkes of ECON, Dr. Bette M. Winer and Dr. John J. Bzura of Arthur D. Little, Mr. Richard L. Kline of Grumman, and Mr. Owen E. Maynard of the Raytheon Company. Mr. Walter E. Whitacre of the Payload Studies Office was Contracting Officer's Representative (COR) for the Marshall Space Flight Center. Mr. Simon V. Manson of the NASA Headquarters Energy Programs Office, provided valuable guidance to this study. 2.0 Summary Description of Orbital Systems The baseline SSPS summarized in Figure 2.1 has been sized to generate five thousand megawatts of rectified power at the output bus of the receiving antenna. This power output was chosen to provide economies of scale while keeping the peak microwave power density in the
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