Observed arrival · 2026-10-13
PlugSolarMath’s balcony-solar calculators
A set of calculators and state-by-state guidance for estimating plug-in solar savings, choosing a kit size, and weighing a battery.
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- U.S. households weighing plug-in solar kits
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- It notes that savings depend on using electricity as panels produce it; extra power sent to the grid may go uncompensated.
Field notes
The page explains that a small inverter sends panel output into household wiring, where appliances use it before the household buys as much electricity from the utility. Its estimates are framed around three variables: electricity price, panel sun and placement, and how much power the household uses during daylight. The site cautions that extra power sent to the grid may not earn compensation and directs readers to check certification and local wattage limits.
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