European Countries and many Arab and most African Countries. Additionally some special spot claims for different Geo positioned sevices will reduce free SPS distribution in remaining orbit parts. Possible reserves for Western Europe could be raised with longitudinal offsets overhead the Atlantic Ocean up to 20 degrees western longitude adding another portion of GEO of 7 360 km spreading. Eastern longitudinal offsets wouldn’t be practical because except from Greece no relevant area lies near or behind 20 degree eastern longitude. A great problem will be the Radio Frequency Interactions (RFI) and disturbances to communication systems of all other space users, which could prevent narrow spacing or reduce total number of employed satellites. II.3.2 European Orbital Limitation Characteristics Scenario For a first rough European SPS orbital limitation characterisation two scenarios have been chosen, which maintain slightly different conservative projections. Fig. 3.2 presents the basic assumption out of which these scenarios are derived: the longitudinal distribution of Western European electricity consumption areas with high power densities as have been identified prior in this study. These consumption areas are meant to be capable of carrying one rectenna delivering at least 5 GW into their utility grids during the considered time frame (2000 - 2030). Presently a power density of about 3 GW throughout of most of the named consumption areas is relevant but not just identifyable by data. Also the future development of these and other potential power density areas isn’t foreseeable. Therefore, and by the very preliminary character of these considerations the following scenarios and analysis should be seen as a methodical attempt rather than a forecast.
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