Fortress Power Envy 8kW Hybrid Inverter

Smarter Power. Seamless Backup. Built for Energy Independence.

The Fortress Power Envy 8kW Hybrid Inverter is a powerful all-in-one energy management solution designed for whole-home solar + storage systems. It delivers reliable power for residential and light commercial applications whether operating on-grid or off-grid.

Pair it with Fortress Power batteries such as the eFlex, eFlex MAX, eVault MAX, or LFP-10 MAX to unlock scalable high-performance energy storage. Built for flexibility, fast installation, and code compliance, the Envy 8kW acts as the heart of your smart energy system.

Key Features

• Powerful Output for Whole-Home Systems:
  • 8kW continuous output (33.3A @ 240V)
  • 60A AC passthrough capacity
  • Ideal for full household loads and large solar + storage systems
• Large Solar PV Capacity:
  • Dual MPPT inputs for flexible array design
  • Supports up to 13kW of solar PV input
  • Maximizes production from rooftop or ground-mount systems
• Installer-Friendly Design:
  • Pre-integrated AC and DC breakers
  • Built-in APsmart rapid shutdown transmitter
  • NEC 2017 / 2020 compliant out of the box
  • Faster, cleaner installations
• Parallel System Expansion:
  • Parallel up to 10 inverters
  • Up to 80kW total system output
  • Ideal for large homes, commercial buildings, and multi-family properties
• Split-Phase & Three-Phase Compatibility:
  • Supports 120/240V split-phase residential systems
  • Compatible with 120/208V or 127/220V three-phase installations
  • Flexible for complex electrical configurations
• Virtual Power Plant (VPP) Ready:
  • Utility-approved across the U.S. and Puerto Rico
  • Participate in demand response programs
  • Earn compensation by discharging stored energy during peak demand
• Smart Monitoring & Remote Control:
  • Real-time solar and battery performance monitoring
  • Grid usage insights
  • Remote firmware updates
  • System diagnostics through the Fortress Power Guardian App

Applications

• Whole-home backup power
• On-grid and off-grid residential systems
• Light commercial installations
• Multi-inverter solar systems
• Solar + storage retrofits
• Virtual Power Plant (VPP) participation

What’s Included

• 1 × Fortress Power Envy 8kW Hybrid Inverter
• Integrated Rapid Shutdown Transmitter
• Built-in AC/DC Breaker Set
• Mounting Hardware
• User Manual & Warranty Documentation

Battery and PV modules sold separately. Compatible with all Fortress Power LFP batteries.

Specification Sheets:

Fortress Power Envy 8kW Hybrid Inverter Specifications (PDF)

Manuals:

Fortress Power Envy 8kW Hybrid Inverter Installation Guide & Owner Manual (PDF)

Integration Guide:

Fortress Power Envy 8kW Hybrid Inverter Integration Guide (PDF)