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Fortress Power - 48v Envy Inverter 8kW, 10kW

SKU Envy Inverter 8 KW-10
Original price $4,599.00 - Original price $5,159.00
Original price
$4,599.00 - $5,159.00
Current price $4,599.00
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Fortress Power - Envy Inverter 8 KW, 10 KW

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 Coupling
  • 90A Built-In Auto Transfer Switch
  • Built-In Generator Input
  • 5 Units In Parallel
  • Online Monitoring/App
  • Color LCD Touch Screen.
  • 3 Phase Compatible (Upcoming Feature)

Supported Applications:

  • Backup
  • Off-Grid
  • Zero Export
  • Time-Of-Use
  • Virtual Power Plant

Whole-Home Backup One-Line Diagram

Fortress Power Envy 8k


    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 21000W (240V) AC Passthrough/ 12000W (240) GEN 21000W (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
    DC Switch 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 UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma
    Warranty 5 Years (Optional 10 Years) 10 Years



    Envy 8k/10kW Inverter – Data Sheet

    Envy 8k/10k Inverter – Manual

    Fortress Power System Design Tool

    Fortress Power Warranty – Envy 8k (CDBG)

    Fortress Power Warranty – Envy 8k / 10k

    NOM Certification