How to choose photovoltaic inverter for home energy storage

How do I choose the best solar inverter?

Performance standards such as IEC 61683 verify efficiency claims, helping users select inverters that maximise their solar system's output. For grid-tied inverter systems, compatibility certifications like IEEE 1547 confirm a safe connection to the utility grid.

How does a solar inverter work?

A solar inverter, also known as a central inverter, changes DC energy from solar panels into AC energy. In smaller solar arrays, a string inverter is used, connecting a string of solar panels to a single inverter via a wiring harness.

Is a solar inverter a type of converter?

A solar inverter is a type of converter, but it's more accurately described as an inverter. It converts the direct current (DC) energy produced by a solar panel into Alternate Current (AC), which is what most homes use. DC energy is not safe to use in homes.

What is the efficiency of a solar inverter?

Efficiency is the amount of energy the inverter can supply. Ideally, you want an inverter that is 96% efficient or higher. Oversizing means that the inverter can handle more energy transference and conversion than the solar array can produce. The inverter capabilities are more significant than the solar array maximum energy production rating.

What should a solar inverter capacity be?

The inverter's capacity should generally match or slightly exceed the total wattage of the user’s solar panel array. The inverter must be able to handle the power input from the solar panels; exceeding the inverter’s limit will result in excess power being clipped, leading to energy losses during peak production periods.

What are the main types of solar power inverters?

There are four main types of solar power inverters: central inverters, string inverters, microinverters, and power optimizers. Smaller solar arrays may use a standard string inverter, where a string of solar panels forms a circuit that connects them all to a single inverter.