In what circumstances you'd use PWM charge controller over MPPT?
Does PWM have any competitive advantage over MPPT technology?
Comments
The main advantage of PWM over MPPT would be the price.
Additionally, on a system where you are using a 125W-150W module that has a nominal voltage of 12V, using a PWM is perfectly fine. In my opinion, an investment on PWM is much more cost effective on such small systems.
I'd say, if the nominal voltage of the array is close to battery voltage, use a PWM to save up money.
Another reason to use MPPT is the hot conditions. You know that they array voltage is lower on hot conditions. If the ambient temperature isn't as hot as it would effect the array voltage, using PWM charge controller would be sufficient.
Comments
The main advantage of PWM over MPPT would be the price.
Additionally, on a system where you are using a 125W-150W module that has a nominal voltage of 12V, using a PWM is perfectly fine. In my opinion, an investment on PWM is much more cost effective on such small systems.
I'd say, if the nominal voltage of the array is close to battery voltage, use a PWM to save up money.
Another reason to use MPPT is the hot conditions. You know that they array voltage is lower on hot conditions. If the ambient temperature isn't as hot as it would effect the array voltage, using PWM charge controller would be sufficient.
To have an idea on the price and products: