Fortress Power Envy 12 kW, eVault 18.5kWh

$15,225.00 $13,864.00 Save $1,361.00
Envy12KW-Evault
  • Free Shipping*
  • Lifetime Support
  • Lowest Price Guarantee
  • No Sales Tax

The Fortress Power Envy 12 kW is a whole-home solar storage inverter that pairs perfectly with the eVault 18.5 kWh lithium iron phosphate (LFP) battery. This powerful system provides backup power, energy independence, and savings on your electricity bills.

Features:

  • 12 kW continuous power output: Keeps your appliances and electronics running during outages.
  • 18.5 kWh eVault battery: Stores excess solar energy for later use.
  • 200A AC passthrough: Provides whole-home backup power.
  • 3 MPPT solar inputs: Optimizes solar energy production for different roof orientations.
  • AC, DC, and AC/DC coupling: Flexible installation options for your solar system.
  • Built-in generator input: Compatible with backup generators for extended power outages.
  • On-grid and off-grid capabilities: Provides peace of mind during any situation.
  • Local and remote monitoring: Keep track of your energy production and consumption from anywhere.
  • 10-year warranty: Ensures long-lasting performance.

Benefits:

  • Backup power: Never be without power during outages.
  • Energy independence: Reduce your reliance on the grid and save money on electricity bills.
  • Increased self-consumption: Use more of the solar energy you produce.
  • Peace of mind: Know that your home is protected from power outages.
  • Sustainable energy: Reduce your carbon footprint and help the environment.
  • Scalable system: Add more batteries for additional storage capacity.
  • Easy to install: Simplifies the installation process for solar installers.

Specifications:

  • Inverter Power Output: 12 kW continuous, 18 kW peak
  • Battery Capacity: 18.5 kWh
  • AC Input Voltage: 120/240 VAC
  • AC Output Voltage: 120/240 VAC
  • MPPT Inputs: 3

Get a Fortress Power Envy 12 kW with eVault 18.5 kWh system today and experience the benefits of solar power!

Shipping
Warranty & Return Policy
Warranty Details
End of Life
Fortress Power

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.

Free Shipping

Free Shipping on all orders.
(Some exceptions may apply)

Lowest Pricing

We have a price match guarantee! If you find it somewhere else cheaper, we will match it!

Lifetime Customer Support

We are with you through every step of your journey. 100% Satisfaction Guarantee.

Sustainability Guarantee

We promise to only work with companies who prioritize sustainable work practices.