Quick Answer
A 2-3 panel array configuration with a total wattage of 400-600 watts is recommended for a mini split system, assuming an average power consumption of 200-300 watts. This setup provides enough power to meet the heating and cooling demands of a small to medium-sized space.
Choosing the Right Panels
When selecting solar panels for a mini split system, consider a high-efficiency panel with a wattage of 150-200 watts per module. This will ensure a compact and efficient setup. Look for panels with a high power density, such as those with a power-to-weight ratio of 0.25-0.30 W/kg. This will allow for easier installation and reduced weight on the roof.
Sizing the Array
Calculate the total power consumption of your mini split system by multiplying the power consumption per hour by the number of hours of operation. For a typical mini split system, this works out to around 200-300 watts. To account for variations in usage and efficiency losses, size the array to provide 10-20% extra capacity. For a 200-watt system, this would translate to a 2-3 panel array with a total wattage of 400-600 watts.
Installing the Panels
When installing the panels, consider a south-facing roof orientation with an angle of 30-40 degrees. This will ensure optimal energy production and minimize shading issues. Use a secure and weather-tight mounting system to protect the panels from wind and weather damage. Mount the panels as close to the mini split system as possible to minimize wire losses and reduce installation costs.
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