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Fortress Power Envy 8kW/ 10kW Inverter

SKU Envy Inverter 8 KW
Save up to $1,547.70 Save $696.00
Original price $5,295.00
Original price $5,295.00 - Original price $6,706.70
Original price $5,295.00
Current price $4,599.00
$4,599.00 - $5,159.00
Current price $4,599.00
Power: 8kW
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The Fortress Power Envy 8kW and 10kW are 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 90A AC passthrough providing up to 8kW (33.3@ 240V) or 10kw (41.6A @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 2 MPPT output allowing for a maximum of 13 kW PV array (Envy 8kW) or 15kW PV array (Envy 10kW). The Envy is equipped with a built-in APsmart Module Level Rapid Shutdown Transmitter and Button, along with integrated AC & DC breakers allowing for fast installation and commissioning. Use our online monitoring app to access your system from anywhere.

Key Features:

  • IP65 Rated For Indoor & Outdoor Installations
  • 2 MPPTs Output For:
    • Max Input 13KW PV Array (Envy 8kW) 
    • Max Input 15KW PV Array (Envy 10kW)
  • AC, DC And AC/DC Combined Coupling
  • Built-In Generator Input
  • 10 Units In Parallel
  • Local And Remote Monitoring/App
  • Color LCD Touch Screen.
  • Batch Settings

Supported Applications:

  • Backup
  • Off-Grid
  • Zero Export
  • Time-Of-Use
  • Virtual Power Plant
  • Peak Shaving
  • Net Metering
  • Smart Load
  • Microgrid

Whole-Home Backup One-Line Diagram

Whole-Home Backup One-Line Diagram

Envy 8kW Envy 10kW
Input DC (PV Side)    
Max. DC Input Power for Single MPPT 6000W / 6000 W 6000W / 6000 W
Max. PV Input Power 13000W 15000W
Max. PV Power Delivered to Battery & AC Outputs 12000W 12000W
DC Input Voltage Range 100V-600V 100V-600V
Nominal DC Input Voltage 360V 360V
Full Power MPPT Voltage Range 170V-500V 210V – 500V
Max. DC Input Current 25A / 25A 25A / 25A
MPPT Number/(Strings per MPPT) 2 / 2 2 / 2
Output/Input AC (Grid)    
Continuous AC Power to Grid 8000W (240V) 10000W (240V)
Continuous AC Power to Load with Grid or Generator 14,400W (240V) AC Passthrough/ 12000W (240) GEN 14,400W (240V) AC Passthrough/ 12000W GEN
Nominal Output Voltage 120V/240V 120V/240V
Max. Continuous AC Current 33.3A @ 240V 41.6A @ 240V
Nominal AC Frequency 50Hz/60Hz 50Hz/60Hz
Output AC (Off-Grid)    
Max. Output Power 8000W 10000W
Nominal Output Voltage 120V/240V 120V/240V
Nominal Output Frequency 50Hz/60Hz 50Hz/60Hz
Nominal Output Current 33.3A @ 240V 41.6A @ 240V
Peak Power 16kW / 500ms 20kW / 500ms
Switching Time Seamless Seamless
Dedicated Auto-start Generator Port 50A / 12kW 50A / 12kW
Battery Parameters    
Compatible Battery Type eVault Max, eFlex, LFP-10 MAX eVault Max, eFlex, LFP-10 MAX
Nominal Battery Voltage 48V 48V
Battery Voltage Range 48V-56V 48V-56V
Maximum Charging/Discharging Current 167A 210A
Maximum Charging/Discharging Power 8000W 10000W
MPPT Efficiency 99.9% 99.9%
Max. Efficiency 97.5% 97.5%
CEC Efficiency 96.5% 96.5%
Anti-islanding Protection YES YES
Ingress Protect Degree NEMA 4X, IP65 NEMA 4X, IP65
SPD Protection YES YES
RSD Built-in APsmart Transmitter Built-in APsmart Transmitter
General Data    
Dimensions 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in) 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in)
Weight 44kg (97lbs) 44kg (97lbs)
Display Color LCD Color LCD
Ambient Temperature Range -25 to 60 °C (-13 to 140 °F) -25 to 60 °C (-13 to 140 °F)
Cooling FAN FAN
Communication RS485/Wi-Fi/CAN RS485/Wi-Fi/CAN
Standard & Certification    
Certifications UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM
Warranty 10 Years / Lead Acid or Fortress Lithium Batteries, other 48v battery manufacturers** 10 Years / Lead Acid or Fortress Lithium Batteries, other 48v battery manufacturers**

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