My Solar Array — SolarSoiled Dashboard

Your Array

Annual $ lost —

Annual energy lost —

Monthly $ lost —

Est. $ recovered if cleaned —

Default 6.9 kW system · click an array to personalize

See exactly when cleaning pays off →

Your Array

Soiling risk — Size — Output lost to dirt —

How is this estimated?

We blend local weather, air quality, dust, and rainfall into a single soiling-risk score for each rooftop. It ranks how dirty panels are likely getting — treat it as relative risk and a dollar range, not an exact percentage.

Customize calculator inputs

System size

Your electricity rate

$/kWh

Peak sun hours/day

h/day

Santa Cruz avg: 5.5 h/day

Estimated soiling loss

% output loss

Auto-filled when you click an array.

Rain resets panels — estimates assume a dry season with no rainfall. For most CA homeowners, soiling loss is small and rain handles it (UC San Diego study).

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