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Comment by patrickhogan1

Bingo! Solar energy moves us toward a future where a household's energy needs become nearly cost-free.

Energy Need: The average home uses 30 kWh/day, requiring 6 kW/hour over 5 peak sunlight hours.

Multijunction Panels: Lab efficiencies are already at 47% (2023), and with multiple years of progress, 60% efficiency is probable.

Efficiency Impact: At 60% efficiency, panels generate 600 W/m², requiring 10 m² (e.g., 2 m × 5 m) to meet energy needs.

This size can fit on most home roofs, be mounted on a pole with stacked layers, or even be hung through an apartment window.

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