A microinverter, or module microinverter, is an electronic device that converts the direct current (DC) produced by a solar panel or a group of solar panels connected in series into alternating current (AC) that can be used to power electronic devices. It maximizes energy production by adjusting the current produced by each individual solar panel.

Microinverters allow you to monitor and maximize the energy production of each individual solar panel. This compensates for production losses caused by shadows, dirt or snow on a single panel, thus optimizing overall energy production.

It is important to note that micro-inverters are often used in combination with a main inverter that converts DC power to AC power for use in your home or for resale to the power grid.

It depends on the size of your roof and the amount of energy you want to produce. The more microinverters you install, the more energy you will produce. It is important to note that the installation of microinverters should be done with factors such as orientation, tilt and spacing of the solar panels in mind to maximize the efficiency of energy production.

For an average home, you may need to install between 4 and 8 microinverters to cover the energy needs of the home. However, it is important to note that this will depend on the size of your roof, the amount of energy you want to produce, and your budget. It is therefore important to consult a professional to assess your energy needs and to help you decide how many microinverters to install.