Manufacturing, Construction, and Maintenance Operations This element includes ground and orbital operations and their respective systems that support the required manufacturing, construction, assembly, and maintenance activities. A special operations management activity ties together equipment and manned operations and transportation and logistics requirements . Space Transportation This element consists of five transportation systems necessary to provide operational satellite power systems: the heavy lift launch vehicle (HLLV), the personnel launch vehicle (PLV), the cargo orbital transfer vehicle (COTV) system, the personnel orbital transfer vehicle (POTV) system, and local space transportation vehicle (LSTV) systems. This paper specifically deals with the influence that the availability and cost of electricity have on the spatial location of industry and population. Accordingly, we are primarily concerned with the relocation of industry and population to regions containing SPS ground receiving and distribution (rectennae) sites that may be operating to supply a significant portion of the U.S. electricity demand early in the next century. Two fundamental issues are emphasized in the preliminary assessment of impacts resulting from these terrestrial operations: (1) the displacement of population from large areas of low density land where the rectennae will be sited, and (2) the redistribution of industry and population that may result based on the availability and cost of SPS generated electricity. Although estimates vary slightly, the typical 5-GW rectenna would con- tain on the order of 10 dipole elements which, when assembled into an elliptical array, would cover an active area of approximately 78.5 km2 (30.3 mi2 or about 19,400 acres) and require a total land area of 132 km2 (51.0 mi2 or about 32,600 acres).1 Based on the current U.S. standard for human exposure to microwaves (10 mW/cm2), no safety zone would be required around the rectenna site.2* Even in the absence of a safety zone, full deployment of a 60-satellite system with a separate rectenna for each orbiting station would require a substantial investment of land. The two preliminary siting studies that have been undertaken to date^’5 emphasize low population density as site selection criterion *If the U.S. standard for exposure to microwave radiation were lowered to 0.1 mW/cm2, a safety zone would be needed. Addition of this buffer would increase the area covered by each rectenna site to approximately 100 mi2 (64,000 acres).2
RkJQdWJsaXNoZXIy MTU5NjU0Mg==