Fortress Power eVault Max 18.5 kWh + Envy 12 kW All in One Hybrid Inverter Combo

eVault Max 18.5kWh Data Sheet

Envy 12kW Hybrid Inverter Data Sheet

Take control of your power with the Fortress Power eVault Max 18.5 kWh and Envy 12 kW All-in-One Hybrid Inverter Combo. 

The eVault MAX 18.5 kWh is Fortress Power’s most advanced 48V lithium iron phosphate (LFP) battery, offering whole-home and light commercial energy storage in a compact design. It's scalable up to 370 kWh, perfect for off-grid living, backup power, solar self-consumption, or peak demand reduction. With AC and DC coupling options and a serviceable top-access design, installation is fast and reliable.

The Fortress Power Envy True 12kW is a high-performance, all-in-one hybrid inverter. It handles up to 21 kW of solar PV input and can scale its AC output to 120 kW by paralleling 10 units, offering unmatched flexibility for grid-tied, off-grid, or backup systems.

It's 200A AC passthrough ensures uninterrupted power, and it's fully compatible with all Fortress Power 48V batteries, including the eVault MAX. The Envy True 12kW helps you achieve energy independence, reduce peak utility rates, and participate in net metering and time-of-use programs, even supporting zero export and load shifting to cut costs. Approved by utilities across the U.S. and Puerto Rico, it also allows participation in Virtual Power Plant (VPP) programs for potential earnings.

Key Features & Benefits:

• Whole-Home Power & Backup: The Envy 12 kW inverter offers a robust 12 kW continuous power output with a 200A AC passthrough, ensuring your entire home stays powered during grid outages.

• Massive Energy Storage: The eVault Max 18.5 kWh battery provides substantial energy storage, capable of running critical loads for extended periods and maximizing your solar investment.

• Seamless Grid & Off-Grid Operation: Enjoy the flexibility of both on-grid and off-grid capabilities, with built-in generator input and AC/DC coupling options for diverse energy scenarios.

• Maximized Solar Harvest: With 3 MPPT inputs, the Envy 12 kW inverter can handle up to 21 kW of PV input, optimizing solar energy capture even from complex array designs.

• Scalable & Future-Ready: The eVault Max battery is scalable up to an impressive 370 kWh, allowing you to expand your energy storage as your needs grow.

• Intelligent & User-Friendly: Monitor and control your system from anywhere with the intuitive mobile app. The Envy inverter also features a color LCD touchscreen for local programming and real-time data.

• Rapid Installation & Safety: Pre-built AC & DC breakers, integrated APsmart Rapid Shutdown Transmitter, and an installer-friendly design ensure fast and compliant installation.

• Durable & Reliable: With an IP65 rating for the inverter and an IP55 rating for the battery, this system is built to withstand various indoor and outdoor environmental conditions.

Warranty

Fortress Power stands behind the quality and performance of its products.

• Fortress Power eVault Max 18.5 kWh Battery: Comes with a 10-year product warranty and is guaranteed for up to 8,000 cycles, whichever comes first, at 80% Depth of Discharge (DoD).

• Fortress Power Envy 12 kW All-in-One Hybrid Inverter: Features a 10-year limited warranty.

Fortress Power also offers an extended warranty program in partnership with Solar Insure, providing an industry-leading 30-year extended warranty on select energy storage systems. This extended coverage includes parts, labor, and shipping for qualified claims, offering ultimate peace of mind. For full warranty details and to register your product, please refer to the official Fortress Power warranty documentation and website. Proper system design and installation by a Fortress Power certified installer partner are crucial for warranty eligibility.

Product Specifications