Safety boundary
Electrical planning disclaimer
Solar and battery systems can involve hazardous voltage, high fault current, fire risk, chemical exposure, and structural loads. A calculator cannot see the conditions that control those risks.
Planning, not final design
SolarMathKit estimates energy, power, runtime, nominal capacity, panel count, and simple battery topology from the values you enter. It does not produce an electrical design, installation drawing, permit package, quote, inspection, or safety certification.
What the tools do not select
- Wire or cable size, insulation, routing, temperature correction, or voltage-drop limits.
- Fuses, breakers, disconnects, contactors, grounding, bonding, or protection coordination.
- Busbars, terminals, torque, enclosure, ventilation, clearances, or fire separation.
- Inverter, charger, BMS, or charge-controller compatibility and settings.
- Panel string voltage, cold-weather Voc, Isc, structural mounting, wind, snow, or roof condition.
- Compliance with electrical, building, vehicle, marine, or fire rules.
Presets and examples
Default depth-of-discharge, efficiency, reserve, appliance, and solar values are editable examples for planning. They are not specifications for a chemistry, manufacturer, location, or appliance model.
Required checks
Use measured loads and current documentation where possible. Verify the complete design against equipment manuals, approved configurations, environmental limits, warranty conditions, and the rules that apply at the installation site. Have a qualified professional review safety-critical work.
Damaged or unsafe equipment
Do not rely on a calculator when a battery or electrical system is hot, swollen, leaking, smoking, sparking, submerged, physically damaged, or behaving abnormally. Stop use when it is safe, keep people away from the hazard, and contact emergency services or a qualified local professional.