Calculate how many solar panels you need based on your daily power usage. Instantly size your inverter, battery bank, and wiring with this free solar calculator.
Wondering how many solar panels you need? Learn how to calculate panel needs, understand peak sun hours, and see real examples to size your solar system right.
Calculate how much power you need with these solar calculators to estimate the size and the cost of the solar panel array needed for your home energy usage.
Calculate how many solar panels you need based on your electricity consumption and location.
We estimate a typical home needs between 16 and 23 solar panels to cover 100% of its electricity usage.
Most homeowners need 15 to 19 solar panels to power their homes. However, the exact number of solar panels you need can depend on the size of your home, your energy usage, and the amount of
How many solar panels do I need? Use our 2025 calculator to size your system by home size, kWh usage, and location. Get panel count, roof space, and kW—free from SolarTech.
Quickly determine your solar panel array size: enter daily kWh, panel wattage, and sunlight hours to get a precise estimate of your system size.
Solar Panel Size Estimator Calculator helps you determine the appropriate size of solar panels needed for your specific energy requirements.
Use our solar panel calculator to find your solar power needs and what panel size would meet them.
Scelto Energy Africa is a leading energy storage equipment manufacturer and integrator based in South Africa, serving the African market. We specialize in lithium-ion batteries for residential, commercial and industrial use, system-level battery management systems (BMS) for optimal performance and safety, energy conversion systems (PCS) for efficient power flow, energy storage battery system cabinets with integrated monitoring, communication cabinets for telecom and data centres, commercial & industrial energy storage cabinets for factories and warehouses, integrated PV-storage systems for seamless solar plus storage operation, distributed energy resources for microgrids and off-grid applications, and deep discharge battery technology for extended cycling. As a full-service provider, we also offer containerised BESS, modular battery racks, backup emergency power, and zero‑carbon microgrids. Our advanced lithium‑ion and sodium‑ion solutions ensure safety, scalability, and high performance for residential, commercial, industrial, and utility projects across Africa.
Our modular energy storage portfolio ranges from compact lithium-ion batteries to 20ft/40ft mobile containers and outdoor all-in-one storage cabinets with IP54 protection. We are a leading energy storage equipment manufacturer, offering communication cabinets for 5G/telecom, server racks for data centers, and IP54 rated enclosures for harsh environments. Our stackable design allows flexible capacity expansion, while our grid-forming technology ensures stable off‑grid operation. Whether for off‑grid power systems, backup emergency power, integrated PV-storage or large zero‑carbon parks, our products feature advanced thermal management, deep discharge cycling, and compliance with African and international standards. We also provide professional energy storage system installation and after‑sales support across Africa.