A large window AC unit uses 1,800-2,500 watts per hour. To run it, you need at least a 2 kW solar installation, which is about 20 solar panels (100W each). Include battery storage to provide power during non-sunny hours. Ensure your system matches your energy generation needs during peak cooling hours.
Next, consider solar panel output. A standard solar panel produces around 300 watts per hour under ideal conditions. Therefore, to generate 8 kWh, you would need at least 27 panels, assuming peak sun hours of about 5 per day.
Additionally, battery capacity is vital. Choose batteries that can store enough energy for nightly use. A battery bank should ideally have a total capacity of at least 10 kWh to cover any inefficiencies and provide backup.
By determining the appropriate solar and battery setup, you ensure that your window AC unit runs smoothly throughout the hot summer months. In the following section, we will explore how to select the right equipment and installation tips to maximize efficiency and performance.
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