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Fortress Power, FlexTower, Top enclosure holds Envy inverter, Bottom enclosure: DuraRack; holds up to 4 eFlex units Fortress Power, FlexTower, Top enclosure holds Envy inverter, Bottom enclosure: DuraRack; holds up to 4 eFlex units Fortress Power, FlexTower, Top enclosure holds Envy inverter, Bottom enclosure: DuraRack; holds up to 4 eFlex units Fortress Power, FlexTower, Top enclosure holds Envy inverter, Bottom enclosure: DuraRack; holds up to 4 eFlex units
Fortress Power, FlexTower, Top enclosure holds Envy inverter, Bottom enclosure: DuraRack; holds up to 4 eFlex units
The images shown are for illustration purposes only and may not be an exact representation of the product

Fortress Power, FlexTower, Top enclosure holds Envy inverter, Bottom enclosure: DuraRack; holds up to 4 eFlex units

  • Model: FlexTower
  • Manufactured by: Fortress Power
  • Condition: New
  • Estimated Delivery: 1 to 2 Weeks
  • Lead Time To Ship May Vary
Price:

$1,625.00 $1,250.00

Manufacturer Info

(image for) Fortress Power
FlexTower
Full-System Enclosure

The FlexTower is for your integrated 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. 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
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

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