Every solar power system is a little different, with unique elements selected to fit your exact power needs. It’s important that every piece of equipment is selected to ensure you receive the right amount of power and are getting the features that are best suited to your power consumption. Because power consumption differs drastically between residential and commercial buildings, the inverters that connect to solar power systems on these buildings must be different as well. Keep reading to learn more about how home solar inverters differ from commercial inverters.
System Size and Power Output
The primary difference between residential and commercial inverters is the scale of the systems they’re designed to support. Residential solar inverters are usually made to handle lower power outputs—most often, between 3 kW and 10 kW of power. This is usually enough to power a single home or small property.
Comparatively, commercial solar inverters are made to take on much larger power capacities—anywhere between 50 kW and several hundred kilowatts (or, sometimes, even megawatts). Commercial solar power systems need higher energy outputs to meet the demands of larger buildings, industrial machinery, and other energy-guzzling equipment.
Three-Phase vs. Single-Phase Power
Residential properties typically receive single-phase power from their local utility grid. So, a residential system will need a single-phase inverter to be compatible with the existing power supply. A single-phase system is usually simpler but is more than sufficient for the typical household’s energy needs. Because this type of system is less complex, installation is usually easier as well, so the system can be installed more quickly.
On the other hand, commercial inverters usually connect to 3-phase power, which is the power supply of choice for larger properties, like office buildings and industrial complexes. This power supply is simply more efficient for these higher energy needs. A 3-phase system allows commercial properties to distribute higher levels of power throughout the property while reducing energy losses. This is why it’s so important for buildings with 3-phase power to select a matching 3-phase inverter.
Cost Differences
Because commercial-grade solar inverters are designed with a higher capacity of solar output, they tend to be more expensive than inverters made for residential systems. A commercial inverter—and the number of panels needed to create power for these high-demand installations—will represent a significantly higher investment than a single-phase, lower-capacity inverter.
Whether you’re looking for commercial or home solar inverters, it’s important that you find an inverter that’s compatible with your home, your system, and your individual needs. Consult with a solar power expert for assistance in finding the right inverter for you.
