Fortress Power FlexTower with Envy True 12 Inverter - 3 eFlex Units: Reliable and Efficient Power Solution

$19,952.00 $18,410.00 Save $1,542.00
FlexTower with ENVY 12K Inverter - 3 eFlex Units
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Introducing the Fortress Power FlexTower with Envy True 12 Inverter - the ultimate power solution for your home or business. This innovative system combines the power of three eFlex units to provide you with reliable and efficient energy whenever you need it. Whether you're looking to power your home during an outage or want to reduce your reliance on the grid, the FlexTower is the perfect choice.

With its sleek and compact design, the FlexTower can easily fit into any space, making it ideal for both residential and commercial use. The Envy True 12 Inverter ensures that you get clean and stable power, protecting your sensitive electronics from any voltage fluctuations. Say goodbye to power surges and hello to uninterrupted energy supply.

Features:
1. Three eFlex units for maximum power output
2. Envy True 12 Inverter for clean and stable power
3. Compact and space-saving design
4. Reliable and efficient energy solution
5. Protects sensitive electronics from voltage fluctuations
6. Suitable for both residential and commercial use

Benefits:
1. Reliable power supply during outages
2. Reduces reliance on the grid, saving you money on electricity bills
3. Protects your sensitive electronics from power surges
4. Compact design allows for easy installation in any space
5. Provides clean and stable power for uninterrupted operation
6. Suitable for both residential and commercial use, offering versatility

Specifications:
- Power Output: Maximum output of three eFlex units
- Inverter Type: Envy True 12 Inverter
- Design: Compact and space-saving
- Application: Residential and commercial use
- Protection: Voltage fluctuation protection for sensitive electronics

Shipping

We use a variety of different shipping vendors for shipping products. Renewable Home Solutions offers free shipping on all Fortress Power products at Renewable Home Solutions expense. Fortress Power does charge for shipping costs on top of the product cost. That's one reason you should buy Fortress Products from Renewable Home Solutions.
Warranty & Return Policy

10 Year Limited Warranty for FlexTower

The FlexTower has a 10 Year Warranty. 10 years (8000 Cycles @ 80% DoD)

Returns

Returns only for RMA has to be authorized first by filling out a support ticket. You can do this by contacting us at info@renewablehomesolutions.com. They are handled through a support portal for a truly defective product.

Please inspect all material carefully upon arrival and write down any visible damages that may have occurred on the delivery note when the carrier is present. The carrier requires any remarks of visible damage to be included on the delivery note. Any concealed damages must be reported within 3 days of delivery.
Downloads
FlexTower Data Sheet

FlexTower Installation Manual
Product information
FlexTower Data Sheet

FlexTower Installation Manual

The Fortress Power FlexTower Can Be Used in A Variety of Applications

The eFlex 5.4 Lithium Battery Storage is a versatile and powerful battery that can be used in a variety of applications. It is ideal for residential, commercial, railway, military, and telecommunication applications. It can also be used in solar energy installations and large grid-scale energy storage.The eFlex 5.4 Lithium Battery Storage is a compact and easy-to-install unit. It has a Lithium Iron Phosphate (LiFeP04) battery chemistry, which is targeted for use in power tools, electric vehicles, solar energy installations, and large grid-scale energy storage.The eFlex 5.4 Lithium Battery Storage is a reliable and durable battery. It has a long cycle life and can withstand harsh weather conditions. It is also backed by a 10-year warranty.

The Fortress Power FlexTower is an all-in-one energy storage system that can be used for backup power, off-grid power, and to save money on your electricity bill. The FlexTower can be installed indoors or outdoors and is easy to use and maintain.

The Fortress Power FlexTower is an all-in-one energy storage system that can be used to provide backup power, off-grid power, or help save money on energy bills for small commercial businesses. The FlexTower can be used to power critical loads during a power outage, such as lights, HVAC, and security systems. It can also be used to store excess solar power for use during peak hours, when electricity rates are higher.

The Fortress Power FlexTower can be used on a farm to provide backup power during a power outage, or to store excess solar power for use when the sun is not shining. The FlexTower is an all-in-one energy storage system that combines a battery, charge controller, and inverter into a single unit. It is weatherproof and can be installed indoors or outdoors. The FlexTower can be used to power essential farm equipment during a power outage, such as well pumps, grain dryers, and milking machines. It can also be used to store excess solar power for use when the sun is not shining, which can help to reduce the farm's reliance on the grid.

  • Backup power: The FlexTower can provide up to 12kW (50A @ 240V) or 15kW (62.5A @ 240V) of whole-home backup power during a power outage.
  • Off-grid: The FlexTower can be used to power your home or business off-grid, with a maximum PV array input of 17kW.
  • Zero export: The FlexTower can be configured to prevent excess solar power from being exported to the grid, which can help you save money on your electricity bill.
  • Time-of-use: The FlexTower can be programmed to use solar power during off-peak hours, when electricity rates are lower. This can help you save money on your electricity bill.
  • Virtual power plant: The FlexTower can be used to participate in a virtual power plant (VPP), which is a group of distributed energy resources that can be aggregated together to provide grid services. This can help you earn money for your solar power system.
  • Peak shaving: The FlexTower can be used to reduce the demand on your home's electrical grid during peak hours, which can help you avoid high electricity bills.
  • Net metering: The FlexTower can be used with net metering, which is a program that allows you to export excess solar power to the grid and receive credits on your electricity bill.
  • Smart load: The FlexTower can be used to control your home's energy usage, such as turning off lights or appliances when you're not home. This can help you save energy and money.
  • Microgrid: The FlexTower can be used to create a microgrid, which is a small, self-contained power grid that can be used to power a home, business, or community during a power outage.

The Fortress Power FlexTower can be used to provide backup power to railway systems during a power outage. The FlexTower can also be used to store excess solar power generated by railway solar panels and used to power railway systems during peak demand hours.

The Fortress Power FlexTower can be used to provide backup power for telecom towers. The FlexTower can also be used to store energy from solar panels and other renewable energy sources.

The Fortress Power FlexTower is compatible with a wide range of inverters and charge controllers, including:

  • Fortress Power Envy 8kW & 10kWh Inverter
  • Sol-Ark 5k/8k/12k/15k Inverter
  • Schneider Conext XW MPPT Charge Controller
  • Outback Skybox FLEXmax Charge Controller
  • Magnum MS 4448PAE Inverter
  • Studer AJ 400/700-48 Series Inverter
  • SMA SUNNY ISLAND 4548-US/6048-US Inverter
  • Victron Phoenix VE.Direct Inverter
  • Morning Star TriStar MPPT 600V Inverter
  • Midnite Solar Solar Classic 150, 200 & 250 Inverter

The FlexTower can also be used with solar panels from a variety of manufacturers. For more information on compatibility, please consult the Fortress Power FlexTower product manual.

Here are some of the features that make the FlexTower compatible with a wide range of inverters and charge controllers:

  • The FlexTower uses a 48V battery system, which is a common voltage for inverters and charge controllers.
  • The FlexTower has a wide input voltage range, which allows it to be used with a variety of solar panels.
  • The FlexTower has a high capacity, which allows it to provide backup power for a variety of applications.
  • The FlexTower is easy to install and maintain, which makes it a good option for telecom towers and other remote applications.

If you are looking for an energy storage system that is compatible with a wide range of inverters and charge controllers, the Fortress Power FlexTower is a great option. It is a reliable, scalable, and easy-to-use system that can be used to provide backup power for a variety of applications.

Fortress Power

"Serious storage capacity and quality with an accessible price tag."

Chris S.

"Great company with a knowledgeable and extremely helpful staff!"

Nick K.

"I installed four batteries and am very happy with all four. The customer support was excellent, they were very easy to work with."

William Jennings

"Had an odd error from eVault Max. Emailed support and they wanted to do firmware update. They had to ship out an adapter but I had tracking info in 90 minutes and they were great to work with. They even took the time to double check the settings in my inverter. It wasn't cheap, but thus far I'm quite happy with the company."

David N.

"I have been in the biz for 38 yrs. The past 15 yrs installing in the Caribbean region of USVI and Puerto Rico. Every residential client has the Fortress Power battery as their ESS. We even have a few light commercial systems using the eVaults with perfect results. We have systems as big as 6 eVaults on 3 Sol-Ark's, down to two 5kW paralleled on back-up systems. The BMS systems make these batteries, hands down the best choice for our clients. I have used many different LPF over the years. None have compared to what we are getting with Fortress. We pay .43kWh, so all our systems are set up as self consumption. That means we need a battery that will handle the loads and handle the environment. Fortress batteries always comes through. I also am very confident in the technical staff. Jing and Eric can answer all my complex technical questions. My company has been installing these batteries going on two years now. I only have happy customers. It is great dealing with a professional company like Fortress. Keep up the great work!!!"

Michael B.

"We have done quite a bit of business with Fortress Power, and they are very friendly, knowledgeable, and easy to work with."

Jason J.

FAQ

View frequently asked questions for Fortress Power Products. Any questions not answered here, contact us by email, chat, or by phone: 1 (302) 244-7703

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.
Are home energy storage systems financially beneficial?

You can use the energy storage to shelve your peak usage. When electricity is at its lowest daily rate, our smart energy storage uses that period to charge. During the peak periods, our energy storage system can power your home, reducing your electricity bill. Clients with solar panel installations enjoy a faster return on investment.
What is Lithium batteries lifespan?

We provide a 10 year product warranty and guarantee up-to 6000 cycles, whichever comes first. Speak to our representatives for details.
Why choose Lithium Iron Phosphate over Lithium Ion batteries?

We use Lithium Iron Phosphate (LiFePo4; Lithium Ferro Phosphate) technology – the safest lithium technology in the industry. It’s environmentally friendly and can be fully recycled. While Many other competitors, such as LG Chem, Tesla and Panasonic use cobalt-based Lithium-Ion battery, which has a very poor thermal stability. Any short circuit or cell-breakage can cause thermal runaway and catch fire.

And comparatively, Lithium Iron Phosphate battery deliver substantially higher amount of life cycles. We guarantee up-to 6000 cycles, while LG Chem, Tesla and Panasonic provide less than 3000 cycles.
Are Fortress Lithium batteries widely compatible?

Yes, our batteries are designed to work with all 48V chargers and hybrid inverters. We work well with Schneider, Outback, Magnum, Sol-Ark, Victron, Morningstar and so on. Please Check out this Inverter Compatibility list.

Fortress Power

Fortress Power

Fortress Power is a company that designs, manufactures, and sells lithium iron phosphate (LFP) batteries for energy storage applications. Their batteries are known for being safe, long-lasting, affordable, and easy to install and maintain. Fortress Power batteries can be used for a variety of applications, including backup power, time-of-use, self-consumption, and off-grid.
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