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Genius Solution Fortress Power Flextower With Envy True 12 Kwh Inverter And Eflex 5.4 Kwh Lfp Batteries Enjoy 95% Off [PYC52cGn]

$160.99 $515.99 -69%

DescriptionSpecificationsWarranty/Resources & ManualsShipping InformationElevate your energy independence with the ultimate power bundle. Our FlexTower, equipped with the DuraRack battery cabinet, combines an all-in-one energy storage system with

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Genius Solution Fortress Power Flextower With Envy True 12 Kwh Inverter And Eflex 5.4 Kwh Lfp Batteries Enjoy 95% Off [PYC52cGn]

  • Description
  • Specifications
  • Warranty/Resources & Manuals
  • Shipping Information
  • Elevate your energy independence with the ultimate power bundle. Our FlexTower, equipped with the DuraRack battery cabinet, combines an all-in-one energy storage system with an Envy True 12 kW inverter and three to four eFlex 5.4 kWh batteries. Whether your goal is to maintain home power during an outage or decrease your grid dependency, the FlexTower with Envy True 12 kW Inverter and eFlex batteries bundle offers the ideal solution.

    FlexTower
    The FlexTower is an all-in-one energy storage system. Built on the foundation of the DuraRack battery cabinet, the FlexTower combines the battery, charge controller, and inverter into a single unit with an LCD control panel, and remote monitoring capability. The FlexTower is easy to install and carries IP65/NEMA3R ratings for indoor or outdoor use.

    Key Features:
    All-in-One Solution

    • Inverter, charge controller, LCD Control Panel, Battery and remote monitoring app integrated in one unit
    • Supports Off-grid, Back-up, Zero Export, Time-of-Use, Demand Response, Peak Shaving, and Virtual Power Plant


    Flexible & Easy Install

    • IP65 water and dust proof for indoor & outdoor installation. NEMA3R
    • AC or DC couple to existing or new PV arrays
    • Optional Rapid Shutdown Button Included
    • Side knockouts sized for solar, grid, and generator wiring


    Highest Reliability for Maximal Protection

    • 8000+ cycle life with tier 1 Automotive Lithium Iron Phosphate (LFP) battery
    • Easily scaled to meet all large residential and commercial electricity needs


    Whole Home Backup with 200A Grid Pass-Through

    • 200A Pass-through eliminates backup panel requirement
    • Saves time on inverter wiring
    • Includes battery cables and combiner for additional savings


    Highest Roundtrip Efficiency to Maximize Your Solar Investment

    • >98% Battery Efficiency
    • 5% CEC-Rated Inverter Efficiency
    • Compatible with Din-Rail Heaters to maximize lifecycles in cold climates

    Envy True 12 kWh Inverter
    The Fortress Power Envy True 12 kW – 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 LEP-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. 

    Key Features:

    • 200A AC Passthrough Current For Whole Home Backup
    • 3 MPPT Output For Max. 21 KW PV Array
    • AC, DC And AC/DC Combined Coupling
    • IP65 Rated For Indoor & Outdoor Installation
    • 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
    • Peak Shaving
    • Demand Response Integration (Coming Soon)


    Whole-Home Backup/AC Passthrough One-Line Diagram
    Fortress Power Envy True 12 kW Whole Home Solar Storage Inverter Whole-Home Backup / AC Passthrough One-Line Diagram


    eFlex 5.4 kWH LFP Battery
    The Fortress Power eFlex is a 5.4 kWh scalable energy storage solution based on safe and energy dense prismatic Lithium Iron Phosphate cells. The digital processor Battery Management System (BMS) includes high amperage contactor disconnects and advanced Closed-Loop inverter communication, as well as individual cell voltage monitoring, temperature monitoring, and cell balancing to maximize reliability and longevity.

    Canbus, modbus, and wifi communication enable internet-of-things compatibility. The IP65 case ensures direct water spray and dust will not penetrate the battery internals from all directions. The unit can be wall mounted, floor mounted, and server rack mounted for hard-to-reach access in renewable, marine, RV, mobile, telecom, railway applications and more.

    Key Features:

    • Rugged, Long-lasting, Daily Use Battery
    • Safe Lithium Iron Phosphate Technology (LifeP04)
    • 98% Round Trip Efficiency
    • Flexible Mounting Options
    • Remote Monitoring including wifi, modbus, and canbus
    • BMS Monitors & Balances Individual Cells
    • NRTL certified to UL9540 and UL9540a standards
    • DuraRack Specifications
      Enclosure Material Carbon Steel
      Enclosure Protection IP65 water and dust proven (outdoor)
      Enclosure Color White
      Dimensions [W x H x D] 29.29 x 41.34 x 18.03 in (744 x 1050 x 458 mm)
      Enclosure Weight 59.6 kg / 153.2 lbs
      Maximum Battery Units 4 eFlex 5.4
      Storage Capacity Range 5.4kWh – 21.6 kWh per unit
      Max. Storage Capacity 81 kWh (4 unites in parallel)
      Knockout Size 1inch & 2 inch
      Positive and Negative Battery Busbars 2 x 4 points; M8 (5/16) Terminal Rings
      Positive and Negative Busbars to Inveter 2 points; m10 (3/8) Terminal Rings
      Battery Cables 4 sets of
      Terminal Torque 7.0 – 7.7 Nm (5.1 – 5.7 ft-lb)
      Enclosure Warranty 3 Years
      Certifications UL9540, UL9540A, UL1973, CEC, SGIP

       

      Envy True 12 kWh Inverter

      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 Lithium and Lead acid batteries
      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 10.4 in (790 x 520 x 264 mm)
      Weight 127 lbs (58 kg)
      Display Color LCD
      Ambient Temperature Range -20 to 60 °C (-4 to 140 °F)
      Cooling FAN
      Communication RS485/Wi-Fi/CAN
      Standard & Certification
      Certifications 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**

      ** BATTERIES TO BE CONFIGURED IN OPEN LOOP COMMUNICATION


      eFlex 5.4kWh LFP Battery
      Name eFlex 5.4
       Total Energy(kWh)  5.4
      Max. Charge Current (Continuous) [A] 100
      Max. Discharge Current (Continuous) [A] 60
      Max. Pulse Current (for 5 sec) [A] 130
      Capacity [Ah] 105
      Voltage Range [V] 48-55
      Charging Temperature [F] 32 to 113
      Discharging Temperature [F] 32 to 140
      Storage Temperature [F] 32 to 95
      Dimension [L x W x H, inch] 21.5 x 17.5 x 7.2
      Weight [lbs] 116
      Life Cycles 8000 @ 80% DoD
      Round Trip Efficiency >98%
    • FlexTower
      FlexTower Data Sheet
      FlexTower Installation Manual

      Envy True 12 kW Inverter
      Envy True 12 kW Inverter - Warranty
      Envy True 12 kW Inverter - Data Sheet
      Envy True 12 kW Inverter - Manual
      Envy Battery - Inverter Integration Guide
      Fortress Power System Design Tool
      Envy Inverter Monitoring Setup Guide
      OGPe Certification
      NOM Certification

      eFlex 5.4 kWH LFP Battery
      Data Sheets
      eFlex Data Sheet
      eFlex Data Sheet (Spanish)
      eFlex Brochure (Spanish)

      Installation Guides/Warranty
      eFlex Warranty
      eFlex Owner/Installation Manual
      Inverter Guides
      Firmware

      Certifications
      UL9540/UL1973 Certificate
      UL9540a Large Scale Fire Test Report

      Racking Details
      DuraRack Manual
      Customer Server Rack Guide

    • Shipping is typically through freight carriers and the actual shipping time is contingent on your location and the specific warehouse dispatching your order. Please allow for a 1-3 business day processing period before shipment, and an estimated delivery time of up to 7 business days. Your confirmation email will include delivery details and we will send you a tracking number as soon as one is available. If you ordered several separate items, you may receive multiple tracking numbers. Once the item has been shipped, the freight service will contact you to coordinate the date and time of delivery. If you require any special accommodations during delivery please let us know as soon as possible and let the delivery company know when arranging the appointment. 

      Typically, orders will be dropped off either curbside or outside your front door or garage. It is your responsibility to bring the order inside or to its final destination and to remove any existing items.

      Depending on the item, parts may be shipped in multiple boxes, and assembly may be required. When your order is delivered, please check that you have all pieces of the item and that nothing is damaged. If your order is damaged during transit and external damage is visible, note the damage immediately, write it on the delivery documents, take photos and/or videos, and refuse shipment. If there is no visible external damage, accept the package but note “subject to concealed damage” on the delivery documents. Any damage upon delivery needs to be reported within 24 hours of delivery or you may not be eligible for a refund. For additional information on submitting claims, as well as incorrect item exchanges, and replacements, please see our Refund Policy

      For more information about shipping, please visit our complete Shipping Policy.

    What Our Customers Say

    January 27, 2026

    Absolutely no complaints!

    A great product. And a great value.

    - Traci V..

    January 27, 2026

    Absolutely no complaints!

    It's a very good, extremely high-quality product.

    - Kian L..

    January 27, 2026

    Absolutely no complaints!

    I'm pleased with this product's quality.

    - Bridget G..

    Write a Review

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