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Description
Fortress Power Envy 8kW Hybrid Inverter 8kW 240VAC Split-Phase All-in-One Solar InverterThe Fortress Power Envy 8kW Hybrid Inverter is an all in one solution built for whole home energy storage and backup. With selectable 8kW continuous output (33. 3A @ 240V), dual MPPTs, and a 60A AC passthrough, it delivers reliable power for residential whole home backup, off grid living, and seamless solar + storage integration. Designed for fast, code compliant installation, the Envy includes integrated AC and DC breakers and a built in APsmart
The Fortress Power Envy 8kW Hybrid Inverter is an all-in-one solution built for whole-home energy storage and backup. With selectable 8kW continuous output (33.3A @ 240V), dual MPPTs, and a 60A AC passthrough, it delivers reliable power for residential whole-home backup, off-grid living, and seamless solar + storage integration. Designed for fast, code-compliant installation, the Envy includes integrated AC and DC breakers and a built-in APsmart Module Level Rapid Shutdown Transmitter and Button.
Key Features & Benefits
8kW Continuous Output: Delivers 33.3A @ 240VAC with a 60A AC passthrough, providing robust power for whole-home backup and larger residential systems. Scalable to 10kW mode (selectable, up to 41.6A @ 240V).
Powerful PV Input (13 kW): Supports up to 13 kW of solar PV input (12 kW delivered to battery & AC outputs), maximizing energy harvest for on-grid and off-grid applications.
Dual MPPTs (25A each): Multiple maximum power point trackers optimize solar harvest from different array orientations, improving overall system efficiency.
Plug-and-Play Installation: Built-in AC and DC breakers (63A AC breakers for Grid, Load & Generator; 250A DC battery breaker) and generous internal space for wire management streamline installation, reducing labor time and simplifying wiring.
Built-In Rapid Shutdown (RSD): Fully integrated APsmart rapid shutdown transmitter and button helps installations meet NEC 2017 & 2020 code requirements without external devices — saving time and cost.
Split-Phase & Three-Phase Support: Engineered for residential 120/240V split-phase systems and can also be used in commercial 120/208V or 127/220V three-phase setups with two or more inverters.
Parallel Capability (Up to 10 Units): Scale your system by paralleling up to 10 units for a maximum of 80kW of AC output, perfect for larger residential or commercial installations.
AC & DC Coupling: Supports both AC and DC coupling, offering flexibility for various system configurations and existing solar installations.
Built-In Generator Input: Integrated generator input (50A / 12kW port) allows for backup power during extended outages, adding an extra layer of system reliability.
Virtual Power Plant (VPP) Ready: VPP-compatible and approved by utilities across the U.S. and Canada, allowing you to participate in demand response programs.
Battery-Agnostic Design: Seamlessly integrates with a wide range of lithium batteries, including Fortress Power's eVault Max, eFlex, eFlex MAX, LFP-10 MAX, as well as other major lithium battery brands (open-loop) and lead-acid.
Remote Monitoring & Firmware Updates: Monitor solar production, battery performance, and grid consumption anytime via the Fortress Power mobile app (Guardian). The Envy also supports remote firmware updates, ensuring your system stays current.
NEMA 4X / IP65 Rated: Suitable for indoor and outdoor installations with robust environmental protection.
10-Year Warranty: Backed by a 10-year limited warranty.
Technical Specifications (8kW Mode)
| Specification | Detail |
|---|---|
| Model | FP-ENVY-8K |
| Continuous Output Power | 8kW (33.3A @ 240V), 8kW (38.5A @ 208V) |
| AC Passthrough | 14400W (240V) |
| AC Output Voltage | 120/240V, 120/208V, 208V 3-Phase |
| Maximum PV Input Power | 13,000W (12,000W delivered to battery & AC outputs) |
| Max. DC Input Power per MPPT | 6000W / 6000W |
| Number of MPPTs | 2 (2 strings per MPPT) |
| Max. Usable Input Current per MPPT | 25A / 25A |
| DC Input Voltage Range | 100V-600V (550V max recommended) |
| Full Power MPPT Voltage Range | 170V-500V |
| AC Coupling | Yes |
| DC Coupling | Yes |
| Generator Input | 50A / 12kW (dedicated auto-start port) |
| Rapid Shutdown | Built-in APsmart transmitter (NEC 2017/2020 compliant) |
| Parallel Capability | Up to 10 units (80kW max) |
| Three-Phase Support | Yes (with 2+ inverters) |
| Battery Voltage Range | 40V-60V |
| Max. Charging/Discharging Current | 167A |
| Max. Efficiency (PV to Grid) | 97.5% |
| CEC Efficiency | 96.5% |
| Enclosure Rating | NEMA 4X / IP65 |
| Dimensions (H×W×D) | 29.5" × 20.5" × 11.23" (750 × 520 × 285 mm) |
| Weight | 110 lbs (50 kg) |
| Display | Color Touch LCD |
| Ambient Temperature Range | -13°F to 140°F (-25°C to 60°C) |
| Communication | RS485 / Wi-Fi / CAN |
| Cooling | Smart Cooling Fans |
| Protections | AFCI, SPD (Type II DC PV, Type III AC), Anti-islanding, DC Switch |
| Certifications | UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC15 Class B, HECO, CEC, Luma, SGIP, NOM |
| Warranty | 10 Years (limited) |
Product Documents
- Product Manual (Installation/User): Download Manual
- Warranty: Download Warranty
- Datasheet: Download Datasheet
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy