User Manual Q&AAnswer
Jan 16, 2025 - 11:55 PM
To determine whether to use a PWM or MPPT charge controller for your solar system, you need to consider several factors. The infographic flow chart provided in the manual can help you make this decision. Here are the key factors to consider:
1. PV Panel Type: Determine whether your PV panels are 60-cell panels or not. PWM controllers cannot be efficiently used with 60-cell panels, while MPPT controllers can be used with any type of panel.
2. Cost: PWM controllers are generally 1/3 to 1/2 the cost of MPPT controllers. If cost is a significant factor for you, a PWM controller might be a more budget-friendly option.
3. Charging Efficiency: MPPT controllers have higher charging efficiency, especially in cool climates. If you want to maximize the charging efficiency of your solar system, an MPPT controller would be a better choice.
4. System Size: Consider the size of your PV array and battery bank. PWM controllers require more careful sizing and may require more design experience. MPPT controllers offer more flexibility and can handle oversizing of the array to ensure sufficient charging during winter months.
5. Lifespan: PWM controllers generally have a longer expected lifespan due to fewer electronic components and less thermal stress. MPPT controllers have more electronic components and greater thermal stress, resulting in a shorter expected lifespan.
By considering these factors and using the flow chart in the manual, you can determine which type of charge controller (PWM or MPPT) is optimal for your specific solar system project. If you need further support or have more specific questions, you can contact the technical department at tech.na@phocos.com.
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