🔐 Solar PV Calculators for Appliances e.g. Homes, Businesses
Our calculators help you size solar panels, inverters, and batteries accurately for appliances like
fridge, freezer, borehole pump, fan, washing machine, dispenser, pressing iron, blender, toaster oven, A/C unit, air compressor, microwave oven, water heater, and more.
There are other appliances which do not readily cross our minds as energy-consuming devices.
Yet, little by little, they draw current that can accumulate to make a big impact on a solar PV system.
Some of them are Mobile Phone, Clipper, TV, CCTV, Thread Mill, Electric Fence, EV Charger, Water Sprinkler Pump, Swimming Pool Pump, and Lighting Group.
Please use our Repeater + Mixed Load Calculator to handle multiple appliances together.
🎥 Watch how the Solar PV Calculator works in real time!
🔗 Try it live here →
Harnessing solar power starts with knowing your energy needs. With our Solar Photovoltaic Calculators, we provide free online tools to help you plan and size your solar system with confidence. Whether you want to estimate the daily energy demand of your appliances or check the Peak Sun Hours (PSH) available in your city, these calculators give you quick, reliable insights.
One of our most popular tools is the Appliance Energy Consumption Calculator (kWh/day). Simply select your household or office appliances from the drop-down menu, enter the number of hours each appliance runs per day, and the calculator will estimate the daily energy requirement.
Each listed appliance includes a 20% buffer to account for system inefficiencies, ensuring a more practical estimate. For the most accurate calculation, check your appliance label for its wattage (or calculate using amperage × voltage). If your appliance isn’t listed, you can share its details with us for inclusion.
This calculator is particularly useful for:
Beyond appliance usage, another important factor in solar planning is Peak Sun Hours (PSH). PSH refers to the number of hours in a day when solar irradiance is strong enough (1,000 W/m²) to generate useful power.
Our calculators also provide PSH values for major Nigerian cities. These values help you understand how much sunlight is available for your panels to convert into electricity. Lagos, Abuja, Port Harcourt, Kano, and other cities have unique solar profiles, and knowing this data ensures more efficient solar PV system design.
While our calculators give you a solid starting point, a full solar design involves more detailed considerations—like inverter sizing, battery storage, and safety margins.
👉 Request a Professional Solar PV System Design
Our team responds within 24 hours to provide a tailored, professional design for your energy needs.