Find your everyday energy use in kilowatt-hours (kWh) from your power bill to help calculate the number of photovoltaic (PV) panels. After that, divide what you have by the average daily amount of sun your area gets.
[PDF Version]
The calculator is compatible with all common photovoltaic modules and inverters, and also allows for the integration of custom module configurations.
[PDF Version]
Estimate the ideal charging current (Amps) for your battery based on its capacity (Ah) and charging rate (C-rate or percentage of capacity). For safety and longevity, most batteries use 10–20% of Ah rating.
[PDF Version]
What you'll get: an estimated shaded fraction of the panel length (0–100%), daily kWh lost, and daily kWh remaining for the chosen “critical” sun altitude (often a winter or problem time-of-day angle). This is a geometry-first estimate.
[PDF Version]
