In a typical PV system, the inverters accomplish two basic tasks: 1) converts DC power from the batteries into household AC, it can power standard appliances and other energy loads, and 2) converts AC into DC energy, it can charge deep cycle batteries. This two-way exchange of energy is crucial for efficiently storing and using energy harvested by PV systems.
If you’re running a PV (photovoltaic) solar array, which is an interconnected network of solar panels working in unison to produce electricity, you’ll need a power inverter to store solar energy in your batteries or a battery bank. But why do you need a power inverter for a PV solar array?
Solar power inverters convert DC power into AC energy, letting you run household appliances and devices off a solar array. This converted power can either be drawn from PV modules directly, stored in batteries or both.
Inverters with Solar Charge Controller
You’ll encounter many different types of power inverters for use with solar arrays. Some of the options, you’ll run across include off-grid and grid-connected inverters (providing power directly to appliances or the AC grid), as well as larger central inverters and smaller string inverters.
Solar charge controllers come in two formats, PWM and MPPT, and may have a variety of other features as well.
You will also come across pricier solar microinverters, they work with solar modules to collect the power, from employing mppt software and technology.
Hybrid solar inverters come with an increased number of built-in inputs and outputs compared to more standard power inverters. If you’re in the market for inverter, we’ll take a brief look at their pros and cons below.
The Pros
While inverters can be very limiting at times due to the fact, that these built-in solar charge controller inverters, may restrict the size of your overall solar system, they do have a few associated positive points.
Additionally, most of these inverters come with built-in solar charge controllers, that allow for direct PV input which some people may see as an advantage.
The Cons
And while hybrid solar inverters due come with a few advantages, there are some significant disadvantages as well. As we’ve already pointed out, inverters will dictate the size of your pv system and even worse, they are not expandable.
Other cons include the substantial financial investment, you’ll likely have to dish out upfront compared to other (less expensive) solar power inverter setups.
In storage/backup systems without PV, you only need an inverter/charger to connect the system.
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