4000W 24/48V Solar Inverter with MPPT Charge Controller

Solar Inverter with MPPT Charge Controller User Manual

How to choose the MPPT controller and PWM solar charge controller?

Both PWM and MPPT solar charge controller have their advantages and disadvantages, so how to choose them depends on the design characteristics, cost, and external environment of solar photovoltaic arrays. The following factors should be taken into account:

1. The PWM charge controller has mature technology, a simple and reliable circuit, as well a low price, but its utilization rate of the module is low, which is about 80% while the MPPT solar controller is a solar controller with maximum power point tracking function, which has a BUCK circuit between the module and the storage battery, as well as 90% of utilization ratio of the module.
2. For small-scale off-grid systems under 2kW, mainly used for lighting in poor and non-electric areas, such as remote mountainous areas and some poor countries in Africa, the users are very sensitive to the price, so it is suggested to use a PWM charge controller and corrective wave inverters, to integrate the controller, inverters, and storage battery, which has the advantages of simple structure, high efficiency, easy connection for users and low price. In addition, it can also drive light bulbs, little televisions, and small fans.
3. MPPT charge controller is recommended for an off-grid system of more than 2kW because it has a high utilization ratio of the module, high efficiency, and flexible configuration of modules. Generally speaking, there is no perfect technology, so users should take the advice of experts, thus ensuring that they choose the proper MPPT solar regulator to meet their needs.