Using enphase micro inverters?

[jcar]

What products do you have that will work with an enphase micro inverter solar panel grid of 6000w?  I would like to bring in the converted DC to AC from the micro inverters to charge a battery array for backup? 

[Robin]

We are in the process of creating a couple different battery back up systems that will work with Enphase or any other grid tie inverters. Magnum Energy has a good fit for the battery based inverter since they have a couple of 120/240VAC inverters. You will backfeed the Magnum inverters. The AC input of the Magnum gets connected to the grid. When the grid is up, the Enphase sell to the grid out of the Magnum AC input. The Magnum AC output is connected to a sub-panel that will carry up to 8000 watts of load. When the grid is down, the Enphase will charge the batteries, but it is uncontrolled. There needs to be a method of dropping the Enphase inverters when batteries are full. This is not an issue when the grid is up as the Magnum will properly charge the batteries with the grid up. You will see this system on our price sheet shortly. We are also working on a smaller system that uses a single Magnum. This smaller system is housed inside one of our battery enclosures. You must insure that no more than 4000 watts be put back into each inverter. It will break if that is exceeded.
Is this the type of answer you were looking for? If you are merely looking to charge a battery, get a line connected charger. The Enphase cannot work unless wired to a sinewave AC source. A battery charger is a load and not a source. The Magnum is both.