Click image to enlarge diagram
AC Coupling has been around for a while, and we have recently teamed up with Magnum Energy to create an easy to use pre-packaged system that can utilize this awesome technology. AC Coupling allows a grid-tie system to work with a backup battery system that can be charged even during grid black outs. This is a perfect add-on for folks who want to include a battery back-up package to their pre-existing grid-tie system.
Using a Magnum sinewave inverter as an electrical “island,” any grid-tie system can be retrofitted with this affordable battery back-up. Normally when the utility fails, a grid-tie inverter would shut itself down. By shifting the solar power into the Magnum inverter during power outages, none of the solar output is wasted. This also means that when the grid fails for multiple days, batteries are being charged daily with the solar system, maximizing the customer’s investment return and assuring power in emergencies.
The wiring diagram (at the top) is complex, but once you digest it, you will see that it is a unique method for wiring up a Magnum inverter. We are currently working with Magnum, testing and perfecting this AC Coupling system. We would be happy to discuss the details.
Block Diagram of Utility-interactive Inverter AC Coupled To Backup Inverter - Utility Power Outage
