Fortress Power Envy 12kW Whole Home Storage Inverter

The Fortress Power Envy True 12 – a whole-home, all-in-one 12kW 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.

INPUT DC (PV SIDE)

Max. DC Input Power for Single MPPT- 12000W/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

Switching Time- Seamless

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

EFFICIENCY

MPPT Efficiency- 99.9%

Max. Efficiency- 97.5%

CEC Efficiency- 96.5%

PROTECTION

Anti-islanding Protection- YES

DC Switch- YES
Ingress Protect Degree- NEMA 4X, IP65

SPD Protection- YES
AFCI- OPT

RSD- Built-in APsmart Transmitter

GENERAL DATA

Dimensions- 31.1 x 20.5 x 10.4in

Weight- 127lbs

Display- Color LCD

Ambient Temperature Range- -4°F to 140°F

Cooling- FAN

Communication- RS485/Wi-Fi/CAN

STANDARD AND CERTIFICATION

Certifications- UL1741, UL1741SB, IEEE1S47A, Rule 21, ISO-NE, FCC15 Class B, HECO, CEC, LUMA

Warranty- 10 Years / Lead Acid or Fortress Lithium Batteries Only

Spec Sheet

 Manual