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In 2025, a foldable solar-panel kit, the 220W EcoFlow blanket, can still pull about 100 watts of input at sunset. That’s plenty for a laptop, satellite hotspot, or a string of LEDs while you watch the sky fade. It’s a neat reminder of how personal, portable, and democratized solar power has become.
Now place that humble rig beside the International Space Station, whose 1998-era solar array is still humming overhead:
System: ISS array
Collective Area: 2,500 m²/ 26,910 ft
Span: Wings stretch 73 m/ 240 ft, wider than an entire football field
Power Output: ~0.22 kW peak; ~0.10 kW at sunset, 60–120 kW of usable power
In comparison:
American football field (including end zones)
~5,350 m² / 57,600 ft²
109 m / 360 ft long
EcoFlow 220 W panel
1.5 m² / 16.2 ft²
Folds into a backpack
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Clarification: The ISS truss structure is roughly half the square area of a football field, but its 240-foot wingspan is wider than the field itself.
Not sponsored by EcoFlow. Just powered by curiosity.
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David T Phung