Description
The Fortress Power Envy True 12kW is a fully integrated all-in-one hybrid solar storage inverter delivering 12kW of whole home backup power with 200A AC passthrough, 3 MPPTs, and support for on-grid, off-grid, AC/DC coupling, and generator input in a single IP65-rated unit.
Key Features
- 12kW Whole Home Backup | 200A AC Passthrough — Delivers 12kW continuous backup power at 50A @ 240V with 48,000W AC passthrough capability for whole home coverage without additional transfer switch hardware.
- 3 MPPT Inputs | Max. 21kW PV Array | 18kW Delivered — Three independent MPPT channels support up to a 21kW solar array with up to 18kW of PV power delivered simultaneously to battery and AC outputs for maximum solar utilization.
- All-In-One Solution | AC, DC & AC/DC Combined Coupling — Supports AC coupling, DC coupling, and combined AC/DC coupling configurations along with built-in generator input port supporting up to 100A max / 90A continuous auto-start operation.
- Built-In APsmart Rapid Shutdown Transmitter — Integrated RSD transmitter and button with Tigo transmitter compatibility eliminates the need for a separate rapid shutdown device for code-compliant residential solar installations.
- 10 Units in Parallel | Virtual Power Plant Ready — Scales from single-home to microgrid deployments with up to 10 units in parallel and full support for backup, off-grid, zero export, time-of-use, peak shaving, net metering, smart load, and microgrid applications.
The Fortress Power Envy True 12kW is engineered for homeowners and installers requiring a single-unit whole home solar backup solution with no compromises on flexibility or power output. Supporting 120/240V, 120/208V, and 208V 3-phase configurations, the Envy True 12kW adapts to virtually any North American residential electrical service type.
With a color LCD touch screen, batch settings capability, and local and remote monitoring via app, the Envy True 12kW delivers professional-grade system visibility and control at the residential level. Its integrated AC and DC breakers further accelerate installation and commissioning time compared to traditional multi-component hybrid inverter systems.
Compatible with both lithium and lead acid batteries at 48V nominal with up to 250A maximum charge and discharge current, the Envy True 12kW pairs seamlessly with Fortress Power's own lithium battery lineup. Rated IP65 and NEMA 4X for both indoor and outdoor installation environments, it is backed by a 10-year warranty and certified to UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC Part 15 Class B, HECO, CEC, and Luma.
Technical Specifications
| Specification | Details |
|---|---|
| Model | Fortress Power Envy True 12kW |
| Max. DC Input Power per MPPT | 1 x 12kW, 2 x 7kW |
| Max. PV Input Power | 21,000W |
| Max. PV Power to Battery & AC Outputs | 18,000W |
| DC Input Voltage Range | 100V – 600V (550V Max Recommended) |
| Nominal DC Input Voltage | 360V |
| Full Power MPPT Voltage Range | 230V – 500V |
| Max. DC Input Current | 25A / 15A / 15A |
| Max. Short Circuit Input Current | 31A / 19A / 19A |
| MPPT Number / Strings per MPPT | 3 (2/1/1) |
| Continuous AC Power to Grid | 12,000W (240V) / 10,400W (208V) |
| Continuous AC Passthrough | 48,000W (240V) |
| Generator Input | 21,000W / 100A Max / 90A Continuous |
| Nominal Output Voltage | 120V / 240V |
| Max. Continuous AC Current | 50A @ 240V |
| Nominal AC Frequency | 50Hz / 60Hz |
| Max. Off-Grid Output Power | 12,000W (240V) / 10,400W (208V) |
| Peak Power | 14kW (10 min) / 16kW (5 min) / 20kW (500ms) |
| Switching Time | <20 ms |
| Compatible Battery Type | Lithium and Lead Acid |
| Nominal Battery Voltage | 48V |
| Battery Voltage Range | 40V – 60V |
| Max. Charge/Discharge Current | 250A |
| Max. Charge/Discharge Power | 12,000W |
| MPPT Efficiency | 99.9% |
| Max. Efficiency | 97.5% |
| CEC Efficiency | 96.5% |
| Ingress Protection | NEMA 4X, IP65 |
| Display | Color Touch LCD |
| Communication | RS485 / WiFi / CAN |
| Cooling | Fan |
| Ambient Temperature Range | -4°F to 140°F (-20°C to 60°C) |
| Dimensions (W x H x D) | 20.5 x 34.2 x 11.2 in |
| Weight | 127 lbs (58 kg) |
| Mounting | Wall Mounted |
| Parallel Units | Up to 10 Units |
| Warranty | 10 Years |
| Certifications | UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC Part 15 Class B, HECO, CEC, Luma |
Specs & Info