Fortress Power FlexTower IP65 Outdoor Rated Inverter Enclosure (Hold Sol-Ark 12K or 15K Inverter)

Fortress Power FlexTower IP65 Outdoor Rated Inverter Enclosure (Hold Sol-Ark 12K or 15K Inverter)

Description

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.

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

Product Specification

Fortress Power FlexTower IP65 Outdoor Rated Inverter Enclosure (Hold Sol-Ark 12K or 15K Inverter) Product Specifications

Specification	Details
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	5.4 kWh – 21.6 kWh per unit
Max. Storage Capacity	81 kWh (4 units in parallel)
Knockout Size	1 inch & 2 inch
Positive and Negative Battery Busbars	2 x 4 points; M8 (5/16) Terminal Rings
Positive and Negative Busbars to Inverter	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

Product Manual

FlexTower Data Sheet
FlexTower Installation Manual
Flextower/Durarack UL9540   

Product Warranty

Fortress Power Product Warranty

Limited Warranty

This Limited Warranty applies to Covered Products (as defined below), unless a newer limited warranty is posted that applies to your Covered Product’s activation date. Always check Avalon High Voltage Energy Storage System - Fortress Power for the correct limited warranty governing your Covered Product.

Subject to the terms of this Limited Warranty, Fortress Power warrants to the Covered Owner (as defined below) that the products listed in the table below and installed for use at the original end user location (the "Original Location")—each referred to as a "Covered Product"—will be free from defects in workmanship and materials ("Workmanship Warranty") for the applicable Limited Warranty Period, provided that the Original Location is located within the following territories (the "Territory"):

• The United States and Puerto Rico (all other U.S. territories are excluded).

This Limited Warranty is valid only when:

(a) The Covered Products are sold by Fortress Power or a Fortress Power-authorized reseller. (b) The warranty is valid to the extent permitted by the applicable laws of the Territory mentioned above.

Covered Products Limited Warranty Period

Covered Product	Limited Warranty Period
Avalon HV Battery (AVB-V1)	15 years from the Activation Date or 8,000 discharged cycles, whichever comes first.
Avalon HV Inverter (11.4 kW & 7.6 kW)	10 years from the Activation Date (excluding the System Shutdown Switch, which has a 5-year warranty).
Avalon Smart Energy Panel (AVSEP-V1)	5 years from the Activation Date.

Activation Date

The "Activation Date" refers to the following:

1. For Avalon HV Battery:

   • The earlier of:
     • (i) The "Energize by" date indicated on the Avalon HV Battery packaging, or
     • (ii) The date the Avalon HV Battery is activated at the Original Location via the Fortress Power Installer Portal, or
     • (iii) The date the Covered Owner receives "permission to operate" from the authorities having jurisdiction.

2. For all other Covered Products:

   • The earlier of:
     • (i) The date the Covered Product is activated at the Original Location via the Fortress Power Installer Portal, or
     • (ii) The date the Covered Owner receives "permission to operate" from the authorities having jurisdiction.

Product FAQs

Fortress Power Product FAQs

Does energy storage work well with my solar system?

Yes. On the grid? Absolutely! Energy storage adds a lot of value to your solar systems. It keeps your solar system operating when your utility service is interrupted. Without energy storage, your PV system will be forced to shutdown when the grid is off.

If you live off grid, energy storage enables you to use the clean solar energy to power your home day and night.

Fortress Power also knows you’re a fan of conservation—energy storage saves both your surplus solar energy and your cash since it reduces on grid energy dependence.

Can I use energy storage without solar panels?

Absolutely. For on grid clients, a home energy storage unit  stores energy from your electricity provider. If an outage occurs, home energy storage can provide up to 24 hours of potentially life-saving power. Need more reassurance? Fortress Power offers batteries with larger storage capabilities, completely customizable to your needs. And, like you, we appreciate saving money. When electricity is at its lowest daily rate, our smart energy storage units use that period to charge. When peak electric use occurs, our energy storage units can discharge power to suit your lifestyle.

What about power outage protection?

Power interruptions shouldn’t disrupt your schedule. An energy storage system will keep your solar system operating during grid outages. When paired with solar panels, an energy storage system supplies unlimited energy delivery. The solar panels power your home during the day and use any excess power to charge the battery. At night, the system keeps your space bright. When used without solar panels, power outage support is dependent on battery size and your energy use. Batteries providing at least 12 hours of backup power are safest.