Quick Answer
For optimal Sol-Ark performance, a solar array size of around 5-7 kilowatts (kW) is recommended for both the 12K and 15K models. This size array will provide sufficient energy to power the home during the day and charge the battery bank, while also allowing for some energy storage for nighttime usage. This array size will provide a good balance between energy production and battery charging.
System Sizing Considerations
When sizing a solar array for a Sol-Ark hybrid inverter system, several factors need to be considered, including the total energy needs of the home, the amount of energy that will be stored in the battery bank, and the desired level of backup power during extended outages. The Sol-Ark user manual provides guidelines for system sizing based on the total daily energy needs of the home and the desired level of backup power. For example, for a 12K model, the user manual recommends a minimum of 4.5 kW of solar array capacity for a 20% backup level and 6 kW for a 50% backup level.
Battery Bank Sizing
The Sol-Ark system is designed to work with a variety of battery types, including lithium-ion and lead-acid batteries. When selecting a battery bank, the total energy capacity of the bank should be sufficient to provide several days of backup power during extended outages. For example, for a 5 kW solar array and a 15K Sol-Ark model, a 24 kWh battery bank would provide about 2 days of backup power at a 50% depth of discharge. The Sol-Ark user manual provides guidelines for battery bank sizing based on the desired level of backup power and the total energy needs of the home.
Array Design Considerations
When designing a solar array for a Sol-Ark system, several factors need to be considered, including the total array capacity, the number and size of individual modules, and the array layout. The Sol-Ark system is designed to work with a variety of array configurations, including single-axis trackers and fixed-tilt arrays. When selecting a solar array, the maximum power point tracking (MPPT) feature of the Sol-Ark inverter should be considered to ensure optimal energy production and efficient charging of the battery bank.
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