Envy 8/10kW
Uninterrupted Clean Power
Solar Storage Inverter for Residential and Commercial
Key Features
Powerful and Scalable: With a 13kW PV input and 8kW/10KW continuous uninterrupted output, the Envy 8kw offers reliable clean energy and can be expanded by paralleling up to 10 units, with a maximum of 80KW/100KW AC output.
Plug and Play Solution for Fast Install: The built-in AC and DC breakers, along with ample space for wire management, speed up installation, making it a plug-and-play solution.
Eliminating additional components to save cost: The integrated rapid shutdown transmitter streamlines your installation while allowing it to meet the NEC code requirements without you having to install an external transmitter.
Supports Residential and Commercial: Not only does the Envy 8k/10kW support residential split-phase (120/240V) service, but it can also be used with commercial three-phase service (120/208V or 127/220V) with as few as two inverters.
VPP Capable: The True 8KW/10KW is listed by numerous utilities across the U.S. and Canada, allowing you to participate on demand response program to receive generous payments from your electric utility companies for the energy your Fortress Power battery systems discharge during peak demand periods. Learn more about our VPP program.
Fully Remote monitoring & firmware upgrades: With user-friendly APP, you can view your solar production, battery charging/discharging rate & import consumption at any time. This also enables you to update firmware remotely anywhere and anytime.
Monitor and control your Envy Inverter Anywhere and Anytime!
✅ Monitor Performance of Each Battery
✅ Update Firmware Over The Air
✅ Participate in Virtual Power Plant Programs
Video Library
Envy True 8/10k Video Library
Make your home your Fortress with Uninterrupted Clean Power
Solar Energy, Grid Energy, Battery Storage, Generators and More.
Seamlessly integrating with our Fortress Power Batteries, the Envy 8/10kW enhances your system’s performance. Perfect for both home and business. Whether you’re seeking to reduce your environmental impact, energy costs, or rely on a steady power supply during outages, the eFlex MAX is your go-to solution. Make the smart switch to a greener, more efficient energy system today with our innovative battery technology.
For firmware updates and details about firmware releases, please visit our Firmware Support Page
| Envy 8kW | Envy 10kW | |
| Input DC (PV Side) | ||
| Max. DC Input Power for Single MPPT | 6000W / 6000 W | 6000W / 6000 W |
| Max. PV Input Power | 13000W | 15000W |
| Max. PV Power Delivered to Battery & AC Outputs | 12000W | 12000W |
| DC Input Voltage Range | 100V-600V | 100V-600V |
| Nominal DC Input Voltage | 360V | 360V |
| Full Power MPPT Voltage Range | 170V-500V | 210V - 500V |
| Max. DC Input Current | 25A / 25A | 25A / 25A |
| MPPT Number/(Strings per MPPT) | 2 / 2 | 2 / 2 |
| Output/Input AC (Grid) | ||
| Continuous AC Power to Grid | 8000W (240V) | 10000W (240V) |
| Continuous AC Power to Load with Grid or Generator | 14,400W (240V) AC Passthrough/ 12000W (240) GEN | 14,400W (240V) AC Passthrough/ 12000W GEN |
| Nominal Output Voltage | 120/240V Single Split Phase, 120/208V Single Split Phase, 120/208V Three Phase | 120/240V Single Split Phase, 120/208V Single Split Phase, 120/208V Three Phase |
| Max. Continuous AC Current | 33.3A @ 240V | 41.6A @ 240V |
| Nominal AC Frequency | 50Hz/60Hz | 50Hz/60Hz |
| Output AC (Off-Grid) | ||
| Max. Output Power | 8000W | 10000W |
| Nominal Output Voltage | 120V/240V | 120V/240V |
| Nominal Output Frequency | 50Hz/60Hz | 50Hz/60Hz |
| Nominal Output Current | 33.3A @ 240V | 41.6A @ 240V |
| Peak Power | 16kW / 500ms | 20kW / 500ms |
| Switching Time | Seamless | Seamless |
| Dedicated Auto-start Generator Port | 50A / 12kW | 50A / 12kW |
| Battery Parameters | ||
| Compatible Battery Type | eVault Max, eFlex, LFP-10 MAX | eVault Max, eFlex, LFP-10 MAX |
| Nominal Battery Voltage | 48V | 48V |
| Battery Voltage Range | 48V-56V | 48V-56V |
| Maximum Charging/Discharging Current | 167A | 210A |
| Maximum Charging/Discharging Power | 8000W | 10000W |
| Efficiency | ||
| MPPT Efficiency | 99.9% | 99.9% |
| Max. Efficiency | 97.5% | 97.5% |
| CEC Efficiency | 96.5% | 96.5% |
| Protection | ||
| Anti-islanding Protection | YES | YES |
| DC Switch | YES | YES |
| Ingress Protect Degree | NEMA 4X, IP65 | NEMA 4X, IP65 |
| SPD Protection | YES | YES |
| AFCI | YES | YES |
| RSD | Built-in APsmart Transmitter | Built-in APsmart Transmitter |
| General Data | ||
| Dimensions | 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in) | 580 x 490 x 265mm (22.8 x 19.3 x 10.4 in) |
| Weight | 44kg (97lbs) | 44kg (97lbs) |
| Display | Color LCD | Color LCD |
| Ambient Temperature Range | -25 to 60 °C (-13 to 140 °F) | -25 to 60 °C (-13 to 140 °F) |
| Cooling | FAN | FAN |
| Communication | RS485/Wi-Fi/CAN | RS485/Wi-Fi/CAN |
| Standard & Certification | ||
| Certifications | UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM | UL1741, UL1741SB, IEEE1547A, rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM |
| Warranty | 10 Years | 10 Years |
