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Fortress Power Envy True 12kW Whole-Home Hybrid Inverter

Fortress Power Envy True 12kW Whole-Home Hybrid Inverter
$4,898.00 - $4,898.00
$4,898.00
$4,898.00 - $4,898.00
$4,898.00
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Fortress Power Envy True 12kW All-In-One Hybrid Inverter

The Fortress Power Envy True 12kW is a high-performance all-in-one hybrid inverter built for whole-home backup, off-grid systems, and light commercial energy applications. Designed to handle demanding energy needs, the Fortress Power Envy True 12kW supports up to 21 kW of solar PV input and can scale up to 120 kW AC output when up to 10 units are connected in parallel, making it a flexible solution for growing energy systems. With a built-in 200A AC passthrough, it ensures seamless power delivery to critical loads or full-home circuits during outages or peak demand periods. The system is fully compatible with Fortress Power 48V battery solutions, including the eForce, eVault MAX, and eFlex MAX, allowing for reliable energy storage and efficient power management.

The Fortress Power Envy True 12kW hybrid inverter is engineered for homeowners and businesses looking to reduce energy costs, increase energy independence, and optimize solar power usage. It supports grid-tied, off-grid, and backup configurations, along with advanced features like zero export and load shifting to help manage electricity usage and avoid high utility rates.


The Envy True 12kW is utility-approved across the United States and Puerto Rico and is designed to integrate with Virtual Power Plant programs, enabling users to send stored energy back to the grid during high-demand periods for potential compensation. Whether used with solar panels or as a standalone energy management system, the Fortress Power Envy True 12kW delivers efficient, scalable, and intelligent energy control for modern power needs.

Fortress Power Envy True 12kW Specs

  • Max. DC Input Power for Single MPPT: 12000W/7000W/7000W 1 x 12kW, 2 x 7kW
  • Max. PV Input Power: 21000W
  • Max. PV Power Delivered to Battery & AC Outputs: 18000W
  • Continuous AC Power to Grid: 12000W (240V)
  • Continuous AC Power to Load with Grid or Generator: 48000W (240V)
  • Nominal Output Voltage: 120/240V Single Split Phase, 120/208V Single Split Phase, 120/208V Three Phase, 120/220V Three Phase
  • Max. Continuous AC Current: 50A @ 240V / 50A @208V
  • Nominal AC Frequency: 50Hz/60Hz
  • Max. Output Power (Off-Grid): 12000W (240V)
  • Peak Power: 14kW 10 minutes / 16kW 5 minutes / 20kW 500ms
  • Switching Time: Seamless
  • Compatible Battery Type: Lithium and Lead acid batteries
  • Nominal Battery Voltage: 48V
  • Max. Efficiency: 97.5%
  • Module Level Rapid Shut Down (RSD): Built-in APsmart Transmitter
  • Certifications: UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM
  • Compatibility: Fortress Power eForce Batteries, Fortress Power eBoost Batteries, Fortress Power eFlex MAX 5.4kWh, Fortress Power eVault MAX 18.5kWh, Fortress Power eFlex 5.4kWh LFP, Fortress Power Guardian Products

Fortress Power Envy True 12kW Features

  • Powerful, Scalable Solar + Storage Performance: With a 21kW PV input and 12kW continuous uninterrupted output, the True 12KW offers reliable clean energy and can be expanded by paralleling up to 10 units, with a maximum of 120KW AC output.
  • Supports Split-Phase and Three-Phase Applications: The Envy is engineered for residential 120/240V split-phase systems and can also be used in commercial 120/208V or 127/220V three-phase setups with just two or more inverters — offering unmatched versatility for mixed-use projects.
  • Plug-and-Play Installation for Faster Setup: Designed with built-in AC and DC breakers and generous internal space for wire management, the Envy enables a streamlined installation process — reducing labor time and simplifying wiring for both retrofit and new systems.
  • Virtual Power Plant (VPP) Ready: Join utility demand response programs and get paid to support the grid. The Envy is VPP-compatible and approved by utilities across the U.S. and Canada, allowing your Fortress Power system to discharge energy during peak demand and generate ongoing financial rewards.
  • Built-In Rapid Shutdown for Code Compliance: Avoid the hassle of extra components. The Envy True 12kW features a fully integrated rapid shutdown transmitter, helping your installation meet NEC 2017 & 2020 code requirements without the need for external devices — saving time and cost.
  • Remote Monitoring and Firmware Updates: Monitor your solar production, battery performance, and grid consumption anytime via the Fortress Power mobile app. The Envy also supports remote firmware updates, ensuring your system stays up to date without the need for onsite visits.

Your Satisfaction with Fortress Power is Guaranteed:

  • 10-Year Limited Warranty
  • Lowest Price Guarantee