Explore all our free tools to plan and optimize your off-grid solar system.
Convert current between amps (A) and milliamps (mA).
Determine current draw from battery capacity over time.
Convert energy (mWh) to charge (mAh) using voltage.
Convert charge (mAh) to energy (Wh) using voltage.
Estimate daily energy consumption of appliances.
Calculate panels needed based on energy requirement and sun hours.
Determine battery capacity for autonomy days without sun.
Select inverter capacity for peak and surge loads.
Size PWM & MPPT controllers for your solar array.
Estimate wire size and cost for your off-grid solar installation.
Canadian solar tilt and peak sun hour calculator powered by NASA data.
Estimate system size, net cost after rebates, annual savings, payback period, and ROI.
Estimate CO₂ offset by replacing grid or diesel power with solar.
Estimate how long a battery can power devices based on load and capacity.
Calculate solar and battery requirements for charging your EV off-grid.