How to configure an off-grid photovoltaic power generation system?

First, calculate the load: daily power consumption + maximum power + number of cloudy/rainy days;
Then, select the battery: prioritize 48V voltage, calculate capacity using the formula;
Match the inverter/controller: use a pure sine wave all-in-one unit, with sufficient power redundancy;
Select the solar panels: total power = average daily power consumption × 1.5 ÷ sunshine hours;
Verify parameters: ensure voltage/power are fully matched, and select auxiliary materials that meet national standards.