Solar scenario calculator

Enter values below to gauge an estimate for your specific scenario. Simulate runs the period against the sky.

Runs the period in 15 s

Clock--:--

Sun—

Into top hat— W

Battery— %

Net— W

Into top hat Battery Load Powered Unpowered

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Sun above the horizon

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Into the top hat per day

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Device use per day

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Net per day

Inputs

Location

Drag to turn · click to set the site · lit side is local noon that month

Site

Latitude

Longitude

Decimal degrees, south and west negative. Latitude and month set the sun; latitude and longitude pick the sky climatology.

Power source

Other power input 0 W

Vehicle, AC brick or another supply on the top hat input, day and night. The top hat passes up to 80 W.

Month

Sky

Share of clear-sky sun reaching the panel, from NASA POWER climatology for the site and month; drag for a worse week.

Folding panel

Panels in parallel

Orientation

BB-2590 Wh

Starting charge 80 %

One top hat serves one 2590. Panels parallel into a top hat; batteries and top hats do not (MPPT stages fight). Swap in a charged battery for more storage.

Device load 12 W

Continuous draw. A StreamCaster idles at 6–10 W, transmits at 15–25 W; a sensor node is often under 5 W.

Simulate

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Live estimate