Space Solar Array Sizing Calculator
Size solar arrays for spacecraft by calculating required area, begin/end-of-life power, and mass estimates.
Inputs
W
W/m²
%
%/yr
years
°
Results
Required Array Area
17.58 m²
Estimated Array Mass
70.33 kg
Begin-of-Life Power6,608.06 W
End-of-Life Power5,000 W
How to Use This Calculator
- Enter required end-of-life power (W) for all spacecraft loads at mission end.
- Set solar constant (W/m² at target orbit distance from Sun) and solar cell efficiency (%).
- Enter annual degradation rate (%) and mission duration (years).
- Set maximum sun incidence angle (degrees) during the worst-case mission phase.
- Review required array area (m²), begin-of-life power, end-of-life power, and estimated array mass.
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