Fortress Power Envy Duo 21 16kW Whole Home Solar Hybrid Inverter

The Fortress Power Envy Duo 21 is designed to meet your energy needs with unparalleled power and flexibility, making it ideal for both residential and commercial solar applications. This advanced hybrid inverter operates with efficiency and reliability, ensuring that you have access to continuous energy whether on-grid, off-grid, or in a hybrid setup.

Benefits

• Experience uninterrupted energy supply even during outages.
• Maximize your energy collection from solar panels, enhancing energy savings.
• Enjoy a user-friendly operation and simplified system wiring.
• Feel secure knowing your energy system is built with advanced safety features.

Features

• Supports up to 16 kW continuous output on-grid and 12 kW off-grid.
• Compatible with a solar PV array of up to 21 kW for maximum energy collection.
• Seamlessly integrates a 200A transfer switch for whole-home backup during outages.
• Versatile voltage compatibility for different phases of operation.
• With an IP65 rated enclosure, this inverter is prepared for outdoor installation.
• Pre-configured with safety breakers for easy installation.
• Includes a rapid shutdown transmitter for compliance with electrical codes.
• Many components are pre-integrated to streamline the installation process.

Specifications

• Model: Envy Duo 21-US (16 kW)
• PV Maximum: 25,000 W / Recommended: 21,000 W
• MPPTs: 3 / Inputs per MPPT: 2:2:1
• DC Voltage Range: 100–550 Vdc / MPPT Range: 120–440 Vdc
• Start Voltage: 100 Vdc / MPPT Nominal: 360 Vdc
• Max Usable Input Current: 26A / 26A / 15A
• Max Short-Circuit Current: 31A / 31A / 19A
• Nominal Output: 120/240V or 120/208V
• Continuous Power: 12,000 VA / Peak Power: 2× Pn for 0.5 s
• Switching Time: <20 ms
• Efficiency: PV to Grid 97.5% / Battery to Grid 94%
• Battery Nominal: 48 V / Range: 40–60 V
• Dimensions: 22.3 x 35.2 x 11.2 in
• Weight: 125.71 lb
• Cooling: Smart cooling fans
• Operating Temperature: -25 °C to +60 °C
• Altitude: < 6561 ft (2000 m) / Humidity: 0–100% RH
• Display: Touch color screen with communication options
• Warranty: 10 years