Fortress Power Envy 12kW Whole Home Solar Storage Inverter

Envy Inverter 12 kW
In stock

Fortress Power Envy Inverter 12 kW

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The Fortress Power Envy 12kW inverter is a whole-home, all-in-one inverter solution. Paired with the Fortress Power eFlex 5.4 kWh, the eVault MAX 18.5 kWh or LFP-10 MAX batteries, the Envy features a 200A AC passthrough providing up to 12kW (50A @ 240V) of whole-home backup power. The Envy features a built-in generator input with AC/DC coupling, on- and off-grid capabilities, plus a 3 MPPT output allowing for a maximum of 21 kW PV array. The Envy is equipped with a built-in APsmart Module Level Rapid Shutdown Transmitter and Button, along with Pre-built AC & DC breakers allowing for fast installation and commissioning. Use our online monitoring app to access your system from anywhere.


  • 200A AC Passthrough current for whole home backup
  • 3MPPT Output for max 21kW PV Array
  • AC / DC Coupling
  • IP65 rated for indoor & outdoor installation
  • Built-in generator port
  • 5 units in parallel
  • Online monitoring/app
  • Color LCD touch screen
  • 3 Phase compatible (Upcoming Feature)


  • Max. DC Input Power for Single MPPT: 2000W/7000W/7000W 1 x 12kW, 2 x 7kW
  • Max. PV Input Power: 21000W
  • Max. PV Power Delivered to Battery & AC Outputs: 18000W
  • DC Input Voltage Range: 100V-600V
  • Nominal DC Input Voltage: 360V
  • Full Power MPPT Voltage Range: 230V-500V
  • Max. DC Input Current: 25A/15A/15A
  • MPPT Number/(Strings per MPPT): 3(2/1/1)

Output/Input AC (Grid)

  • Continuous AC Power to Grid: 12000W (240V)
  • Continuous AC Power to Load with Grid or Generator: 48000W (240V)
  • Nominal Output Voltage: 120V/240V
  • Max. Continuous AC Current: 50A @ 240V
  • Nominal AC Frequency: 50Hz/60Hz

Output AC (Off-Grid)

  • Max. Output Power: 12000W (240V)
  • Nominal Output Voltage: 120V/240V
  • Nominal Output Frequency: 50Hz/60hZ
  • Nominal Output Current: 50A @ 240V
  • Peak Power: 14kW 10 minutes / 16kW 5 minutes / 20kW 500ms

Battery Parameters

  • Compatible Battery Type: eVault Max, eFlex, LFP-10 MAX
  • Nominal Battery Voltage: 48V
  • Battery Voltage Range: 48V-56V
  • Maximum Charging/Discharging Current: 250A
  • Maximum Charging/Discharging Power: 12000W

10 Year Limited warranty

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SKUEnvy Inverter 12 kW
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