A solar inverter converts electricity (DC, or direct current) from solar panels into power (AC, or alternating current) that can be used by the plugs/sockets to power devices and other wired products. Solar panels do not have the capacity to create AC power by itself; they need the helping hand of a solar inverter.
Core and Extended Roles of a Solar Inverter
Inverter technologies have advanced significantly, such that in addition to converting DC to AC, they provide a number of other capabilities and services to ensure that the inverter can operate at an optimal performance level, such as :-
- a) Data monitoring
- b) Advanced utility controls
- c) Applications and system design engineering.
The following parameters need to be considered while choosing an inverter:
|Wattage rating, or how much power in watts the inverter can deliver.|
|Surge power- How much power and for how long it can deliver the power needed to start motors or other loads.|
|Efficiency, or how efficient the inverter is at low, medium and high power draws, as well as how much power is used when on idle.|
|Quality or shape of the electrical wave, whether pure sine wave or modified sine wave.|
|Functionality. From simply converting DC to AC to the highly sophisticated, multifunctional grid tie inverters which accept and convert energy from several different sources and route excess into the grid in a compatible form and in a safe way.|