[RE-wrenches] Diversion load for AC coupled system

[Larry Crutcher, Starlight Solar Power Systems]

Hello Wrenches,

I would like some advice on diversion load control of 3800 watts of PV solar. The battery bank is 48 volts and the battery inverter is the MS4448PAE. This will AC couple with a grid tied inverter during an outage. Magnum Energy recommends the addition of a dump load for safe battery voltage control.  The customer may leave the home unattended for weeks so I am looking for reliability here. Quality, as well. 

A pair of Tristar 60's should be suitable for the 3.8kW output but I haven't been able to find a load that is sized for this job. I welcome any advice on this subject.  Thanks in advance.

Larry Crutcher
Starlight Solar Power Systems