Free security planning tool
Estimate off-grid camera load, battery capacity, solar array size, and autonomy. Results update immediately and remain in your browser.
Recommended solar array
900–1,000 W
Calculated minimum: 838 W before rounding.
Continuous load
89 W
Daily consumption
2.14 kWh/day
Recommended battery bank
6.3 kWh nominal
Approximate 48V capacity
131 Ah
Required usable energy
5 kWh
Autonomy without solar
2 days
Based on recommended battery bank.
This model assumes a continuous 24-hour load. Real systems should also account for startup current, temperature, seasonal solar variation, snow, shading, cable loss, controller limits, and equipment-specific voltage ranges.
Need a complete plan?
These calculations cover one part of a security deployment. Get a broader assessment of cameras, connectivity, power, coverage, monitoring, and mobile surveillance requirements.
Add each camera, switch, gateway, recorder, and accessory at realistic operating wattage. A 24-hour surveillance system consumes energy even when the scene is quiet.
Manufacturer maximum ratings can be conservative, while heaters, IR illumination, PTZ movement, and radios can create peaks that still need to be supported.
Usable energy depends on system voltage, depth of discharge, conversion loss, temperature, aging, and battery chemistry. This calculator does not assume a chemistry; use the permitted usable percentage for the selected equipment.
Peak sun hours are an energy planning value, not simply daylight hours. Local weather, shading, tilt, orientation, snow, dust, and seasonal conditions affect production.
The suggested array rounds above the theoretical result, but a professional design should model the worst operating season and charging limits—not only annual averages.
Frequently asked questions
Peak sun hours express daily solar energy as an equivalent number of hours at full rated irradiance. They vary by place, season, weather, tilt, and shading.
Panels rarely deliver nameplate output all day. Derating represents heat, wiring, controller, orientation, dirt, mismatch, and other production losses.
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