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Fortress Power Envy 8/10kW Hybrid Inverter
$3,735.00 USD
Pickup available at Shop location
Usually ready in 2 hours
The Fortress Power Envy 8/10kW Hybrid Inverter is an all-in-one solution for whole-home solar energy storage, backup power, and off-grid systems. Delivering up to 8kW (33.3A @ 240V) or 10kW (41.6A @ 240V) of continuous output through a 60A AC passthrough, it ensures your home or small business stays powered reliably.
With AC/DC coupling, dual MPPTs, and a built-in generator input, the Envy supports up to 13kW of solar PV input (8kW mode) or 15kW (10kW mode), making it versatile for both on-grid and off-grid applications. It's also compatible with third-party batteries from Pytes, Zetara, Meritsun, and more - giving you the flexibility to design your system around your needs and budget.
Installation is simple and code-compliant, thanks to integrated AC and DC breakers and a built-in APsmart Module Level Rapid Shutdown Transmitter. Take full control via the Fortress Power Guardian mobile app - monitor performance, track solar production, and receive remote firmware updates anytime.
Approved by utilities across the U.S. and Puerto Rico, the Envy 8/10kW also supports Virtual Power Plant (VPP) programs, letting you earn compensation for discharging energy back to the grid during peak demand.
Have any questions? Email us at info@solwel.com or give us a call at (346) 432-4228.
Key Features
- Scalable Solar + Storage Performance - Supports up to 13kW (8kW mode) or 15kW (10kW mode) of PV input. Parallel up to 10 units to expand as your energy needs grow.
- Plug-and-Play Installation - Built-in AC/DC breakers and wire management simplify setup for both retrofit and new systems.
- Built-In Rapid Shutdown - Integrated RSD transmitter ensures NEC code compliance without extra devices, saving time and cost.
- Split-Phase and Three-Phase Support - Works with 120/240V split-phase or 120/208V & 127/220V three-phase setups for versatile residential and commercial use.
- Virtual Power Plant (VPP) Ready - Participate in utility demand response programs and earn by discharging energy during peak periods.
- Remote Monitoring and Firmware Updates - Track solar production, battery performance, and grid usage via the Fortress Power app, with remote firmware updates for convenience.
Applications
- Off-grid homes and cabins
- Home backup power
- Light commercial energy systems
- DIY solar setups
Recommended Battery Pairings
The Fortress Power Envy pairs seamlessly with the Fortress Power eForce and eFlex MAX battery systems for a complete, integrated energy storage solution.
Frequently Asked Questions
What is the difference between the 8kW and 10kW models?
Both models are the same physical inverter. The 8kW model supports up to 13kW of solar PV input and outputs up to 8kW continuously, while the 10kW model supports up to 15kW of PV input and outputs up to 10kW continuously. Your installer will help determine which is right for your system size.
Is this inverter compatible with third-party batteries?
Yes - the Envy is compatible with third-party batteries from Pytes, Zetara, Meritsun, and others, in addition to Fortress Power's own eForce and eFlex MAX batteries.
Does this inverter include rapid shutdown?
Yes - the Envy has a built-in APsmart Module Level Rapid Shutdown Transmitter, ensuring NEC code compliance without the need for additional RSD devices.
Can this inverter work off-grid?
Yes - the Envy supports both on-grid and off-grid operation, making it suitable for cabins, remote homes, and any application requiring grid independence.
What is a Virtual Power Plant (VPP) and how does it work?
A VPP is a utility program that allows homeowners to discharge stored battery energy back to the grid during peak demand periods in exchange for financial compensation. The Envy is pre-approved for VPP programs across the U.S. and Puerto Rico.
Is professional installation required?
Yes - hybrid inverter installation must be performed by a licensed electrician or solar professional. Solwel offers professional installation at our Houston and Dallas locations.