Pacific Energy has become certified in both Design and Installation of Franklin Systems.
Unlike other systems, which are not compatible with existing PV generation systems, Franklin is agnostic as to what is on the roof (and the wall for large Central Systems). It doesn't care, it will work with, and control, any system.
If you are curious about whole house batteries, here are some categories of importance:
Whole House backup for emergencies
Add A Battery to allow addition of additional PV panels. PV panels degrade slightly year by year, but over a decade, that can show up on your bill, and that is annoying. The battery takes this excess power from the new panels, and stores it so you can supply your house at night.
Add a Battery to supply power (and maybe extra panels) for an existing EV or an upcoming EV
Add a Battery to allow a brand new system to be put in.
More to come, if interested, the first step is a call to Steve 808-265-5971,
or email solsen@pacific-energy.com
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Lastly, they have good tech support 7 days a week, 7AM to 7PM
And they have an Oahu based Engineer and Service Tech available by filling out this form