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Whole-Home Backup

Build your whole-home backup system

EG4 FlexBOSS inverters and a GridBOSS tie your grid, generator, and backed-up loads together. The engine checks every connection live.

Powered by the Ape Solar compatibility engine
$150≈ 12 kW array
Your build, live
Pick a solar panel to begin.

Single-line diagram

Pick a panel, inverter, and battery to see the wiring diagram update live.

Your system

Panel
Not yet picked
FlexBOSS
Not yet picked
Battery
Not yet picked
Rapid shutdown
Not yet picked
GridBOSS
EG4 GridBOSS V2
1 bundled

Your array

—
panels
—
series strings
1
inverters (parallel)
—
array size

Compatibility checks

  • ✕Rooftop arrays need a rapid-shutdown device (NEC 690.12).
  • ✕This system runs on a battery bank. Pick a battery, or tick "I am supplying my own battery" to leave it out.

Your kit

  • EG4 GridBOSS V2
    grid interconnection and load management
    1 each
    $1,999
  • Disconnect Isolator Switch
    one DC isolator per 2 PV strings
    1 each
    $90
Estimated kit total$2,089

Sample pricing from the live catalog. Wire and small parts estimated from the panel count; a tech confirms the full list before it ships.

Build type: whole-home · engine v0.6 · catalog rows: 65