Solar Load Calculator – Find Out How Many Panels You Need
Welcome to our free Solar Load Calculator! If you’re planning a home or office solar installation, it’s essential to know your daily power consumption. Simply enter the wattage and daily usage hours of your appliances below, and this calculator will estimate your total daily load. Perfect for DIY projects, off-grid systems, and anyone in the USA, UK, Canada, Australia, and worldwide.
Solar Load Calculator
Enter the power consumption of your appliances to estimate your total daily load.
| Appliance | Wattage (W) | Hours per day |
|---|---|---|
| Appliance 1 | ||
| Appliance 2 | ||
| Appliance 3 |
Why Use a Solar Load Calculator?
Before installing solar panels, it’s important to know exactly how much energy your household consumes daily. This helps choose the correct number of panels, battery size, and inverter capacity – saving you money and ensuring your system meets your needs.
How to use this calculator:
- Enter the wattage of each appliance (e.g., lights, TV, refrigerator).
- Enter how many hours per day you use each appliance.
- Click "Calculate Total Load" to see your daily energy consumption in Wh and kWh.
FAQs – Solar Load Calculator
How accurate is this calculator?
This calculator gives an estimate. For exact design, consult a certified solar installer.
What does daily load mean?
Daily load is the total energy your appliances use in a day, measured in Wh (watt-hours).
How do I know how many panels I need?
Divide your daily load (kWh) by the average daily sunlight hours in your location, then adjust for system losses (around 20%).
Need help designing your solar system? Contact us here or try our other free calculators!