Figure 3-3 indicates that the total revenues due to these savings available to the Powersat operator from all 75 comsats being served would be little more than 600 MAU. More fundamentally, this revenue would be spread out over 10 years because of each comsat s life expectancy. Hence, the total annual revenues would be around 60 MAU. Although these revenues might be considered significant, they must be compared with the cost of establishing and operating the Powersat constellation. If it is assumed that each Powersat costs no more to build than a typical large comsat - clearly a very, very optimistic assumption, as each would produce around 100 kW in transmitted power to 30-40 simultaneous users - and require a dedicated Ariane 4 launch, then the total cost to establish a Powersat constellation on station and to operate it for 10 years would be approximately as shown in Figure 3-4. Figure 3-4 : Cost to Build, Launch & Operate Povversats for the Comsat Applications Without going any further with the analysis, it seems clear that the economic case for Powersats supplying power to all comsats is currently not
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