Fortress Power | Envy Inverter 12 kW | 10 Year Warranty
Introducing the Fortress Power Envy True 12 – a comprehensive 12kW inverter solution for entire home backup. When combined with the Fortress Power eFlex 5.4 kWh, the eVault MAX 18.5 kWh, or LFP-10 MAX batteries, the Envy offers a 200A AC passthrough delivering up to 12kW (50A @ 240V) of backup power. It includes a built-in generator input with AC/DC coupling, on- and off-grid capabilities, and a 3 MPPT output supporting a maximum of 21 kW PV array. The Envy is furnished with a built-in APsmart Module Level Rapid Shutdown Transmitter and Button, along with pre-built AC & DC breakers for swift installation. Access your system conveniently from anywhere with our online monitoring app.
Key Features:
- 200A AC Passthrough for Whole Home Backup
- 3 MPPT Output for Maximum 21 KW PV Array
- AC, DC, and AC/DC Combined Coupling
- IP65 Rated for Indoor & Outdoor Installation
- Built-In Generator Input
- Up to 10 Units in Parallel
- Local and Remote Monitoring/App
- Color LCD Touch Screen
- Batch Settings
Supported Applications:
- Backup
- Off-Grid
- Zero Export
- Time-Of-Use
- Peak Shaving
- Demand Response Integration (Coming Soon)
Whole-Home Backup One-Line Diagram
Specifications
| Input DC (PV Side) | |
| 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 |
| DC Input Voltage Range | 100V-600V |
| Nominal DC Input Voltage | 360V |
| Full Power MPPT Voltage Range | 230V-500V |
| Max. DC Input Current | 25A/15A/15A |
| MPPT Number/(Strings per MPPT) | 3(2/1/1) |
| Output/Input AC (Grid) | |
| Continuous AC Power to Grid | 12000W (240V) |
| Continuous AC Power to Load with Grid or Generator | 48000W (240V) |
| Nominal Output Voltage | 120V/240V |
| Max. Continuous AC Current | 50A @ 240V |
| Nominal AC Frequency | 50Hz/60Hz |
| Output AC (Off-Grid) | |
| Max. Output Power | 12000W (240V) |
| Nominal Output Voltage | 120V/240V |
| Nominal Output Frequency | 50Hz/60hZ |
| Nominal Output Current | 50A @ 240V |
| Peak Power | 14kW 10 minutes / 16kW 5 minutes / 20kW 500ms |
| Switching Time | Seamless |
| Battery Parameters | |
| Compatible Battery Type | eVault Max, eFlex, LFP-10 MAX |
| Nominal Battery Voltage | 48V |
| Battery Voltage Range | 48V-56V |
| Maximum Charging/Discharging Current | 250A |
| Maximum Charging/Discharging Power | 12000W |
| Efficiency | |
| MPPT Efficiency | 99.9% |
| Max. Efficiency | 97.5% |
| CEC Efficiency | 96.5% |
| Protection | |
| Anti-islanding Protection | YES |
| DC Switch | YES |
| Ingress Protect Degree | NEMA 4X, IP65 |
| SPD Protection | YES |
| AFCI | OPT |
| RSD | Built-in APsmart Transmitter |
| General Data | |
| Dimensions | 31.1 x 20.5 x 10.4 in (790 x 520 x 264 mm) |
| Weight | 127 lbs (58 kg) |
| Display | Color LCD |
| Ambient Temperature Range | -20 to 60 °C (-4 to 140 °F) |
| Cooling | FAN |
| Communication | RS485/Wi-Fi/CAN |
| Standard & Certification | |
| Certifications | UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma |
| Warranty | 10 Years / Lead Acid or Fortress Lithium Batteries Only |
Warranty
Envy True 12 Inverter – Warranty Letter
Downloads
Envy True 12 Inverter – Data Sheet
Envy True 12 Inverter – Manual
Envy Battery-Inverter Integration Guide
Fortress Power System Design Tool
