36 Table 4. System Specifications as Applied in this Study Space-Based Segment Functional Step Parameter RD1 RD2 Source Collect Distance to Earth surface (km) 35,786.00 35,786.00 Mankins, Sasaki Scaling factor 0.77 5 Solar panel size (km2) 11.473 19 Mankins, Sasaki Solar panel surface area (m2) 11,473,000.00 19,000,000.00 Calculated Solar Constant (w/m2) 1,367.50 1,367.50 NASA Incident solar energy (MW) 15,689.33 25,982.50 Calculated Illumination Secondary reflector array ~2-3 suns No additional optical array 1 sun Mankins, Sasaki Solar Cell Efficiency 0.35 0.35 Rodenbeck et al. Convert in Space DC to DC Conversion Efficiency 0.9 0.9 Rodenbeck et al. DC to RF Conversion Efficiency 0.7 0.7 Rodenbeck et al. Transmit Antenna Emission Efficiency 0.9 0.9 Rodenbeck et al. Atmospheric Travel Efficiency 0.98 0.98 Rodenbeck et al. Beam Collection Efficiency 0.95 0.95 Rodenbeck et al. RF frequency (GHz) 2.45 5.8 Mankins, Sasaki Ground-Based Segment Functional Step Parameter RD1 RD2 Source Receive Rectenna Array Reception Efficiency 0.78 0.78 Rodenbeck et al. Diameter ground rectenna (km) receptor 6 4 Inferred from Mankins, Sasaki Convert on Ground DC to DC Conversion Efficiency 0.9 0.9 Rodenbeck et al. Deliver Capacity factor (% of year generating power) 0.997 0.6 Mankins, Sasaki Power delivered (MW) 2028.791344 2021.948467 Rodenbeck et al.
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