🪴 Balcony Solar (Plug-In Solar) Calculator

Plug-in “balcony” solar kits connect to a regular outlet and offset part of your daily power use. Estimate the yearly savings and how quickly a kit pays for itself.

$
W
kWh
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$/kWh

How this is calculated

Yearly output is panel power (in kW) × yield per kW. Only electricity used in your home while the sun shines saves money, so the result is multiplied by the share you use directly and by your electricity price.

Frequently asked questions

Is plug-in solar legal in the US?

Rules differ by state and utility. A few states have started to allow small plug-in systems; check your state law and your utility before buying.

What share will I really use?

With a fridge, router and other always-on devices, 60–80% of a small kit’s output is usually used directly.

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