Sizing A Grid Tied Solar Inverter

Grid-tie inverters connect directly to the utility grid and do not require batteries. A battery-less system is much less complex (and less costly) than a system with batteries. The main drawback is that a grid-tie solar system without batteries cannot supply power to the home in the event of a power outage. For the safety of the people working on the utility lines, grid-tie inverters will shut down until power has been restored. If frequent power outages are not an issue, then a utility grid-tie system can be an excellent, cost effective option.

To qualify for most state rebate programs, you must be connected to the utility grid. Sizing a grid-tie inverter can be a bit more complex than sizing one intended to be used with batteries. Each inverter manufacturer offers a string sizing tool that will display the acceptable configurations for your PV array, based on the quantity and wattage of your solar panels. These string sizing tools also account for variations due to high and low temperature extremes.

Browse our wide selection of off-grid, hybrid and grid-tie solar inverters. We also offer solar panels, solar batteries and complete solar system in both off-grid and grid-tie applications. Questions about these, or perhaps string sizing for inverters? Call Bluesun Solar today at +86 158 5821 3997 or info@bluesunpv.com!