NASA 2024 Space-Based Solar Power

71 Key input parameters RD1 RD2 ADR vehicles GHG emissions 15,249,203.93 25,846,108.35 ADR Launches 20.00 34.00 ADR Starships Built 2 3 Total Prop needed Dispose launches (kg) 16,390,786.60 27,864,337.22 Total Prop cost Dispose launches ($) $3,278,157.32 $5,572,867.44 Total Dispose launcher metal mass (kg) 122,400.00 183,600.00 Total Dispose structure composite mass (kg) 13,600.00 20,400.00 Total Dispose launcher harness mass (kg) 11,900.00 17,850.00 Total Dispose launcher electronics mass (kg) 6,800.00 10,200.00 Total Dispose launcher Electronics Structure mass (kg) 15,300.00 22,950.00 Total Dispose launcher Electronics area (m2) 7,858.39 11,787.59 Total Dispose launch impact (kgCO2eq.) 79,794,345.28 133,295,682.50 ADR Operations GHG emissions (kgCO2eq.) 763,952,825.32 1,194,230,666.73 Total Dispose GHG emissions (kgCO2eq.) 828,497,966.66 1,301,680,240.88 Output RD1 RD2 System Total Total GHG emissions (kgCO2eq.) 14,168,937,583.09 21,455,562,918.45 GHG emissions per kWh (gCO2eq./kWh) 26.58 40.38

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