SOLAR RECHARGE ESTIMATOR
See what your panels
can put back in.
Estimate effective charging power, daily solar energy, and time to your target charge. The calculator uses peak-sun hours instead of raw daylight hours because solar panels rarely produce rated power all day.
Effective charging power—
Daily yield—
Est. recharge—
What that means
Energy needed—
Peak-sun charging time—
Daily yield—
Days to target—
Peak sun hours are not the same as daylight hours.
A 10-hour day does not mean 10 hours at panel nameplate output. Weather, shade, panel angle, temperature, wiring, charge-controller limits, and the station's own solar-input cap can all reduce real production.