Fortress Power Envy True 12kW Hybrid Inverter | 21kW PV Input | 12kW Output | Scalable to 120kW
True Power. Total Control. Built for the Future of Energy.
The Fortress Power Envy True 12kW is a next-generation, all-in-one hybrid inverter engineered for seamless whole-home and light commercial solar + storage systems. With up to 21kW of solar input, a massive 200A AC passthrough, and the ability to parallel up to 10 units for a total of 120kW output, this inverter delivers the power, flexibility, and scalability modern energy systems demand.
Whether you're living off-grid, optimizing for time-of-use billing, or participating in a Virtual Power Plant (VPP) program, the Envy True 12kW gives you the tools to maximize savings, enhance resilience, and take control of your energy future.
Key Features:
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High Power, High Flexibility:
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Supports up to 21kW PV input
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Delivers 12kW of continuous output
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Parallel up to 10 inverters for 120kW total AC output
Perfect for large homes, multi-unit properties, and light commercial setups.
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Full Home Backup Made Simple: With a 200A AC passthrough, the Envy True 12kW can back up your entire home—no subpanel needed. Keep lights, appliances, and critical loads running without compromise during grid outages.
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Plug-and-Play Installation: Built with integrated AC/DC breakers and generous internal space for cable routing, the Envy True 12kW simplifies installation and cuts labor time—ideal for both retrofits and new construction.
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Code-Compliant Rapid Shutdown: Meet NEC 2017 & 2020 without the added components. The Envy True 12kW includes a built-in rapid shutdown transmitter, making your system safer, faster to install, and more cost-effective.
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Split-Phase and Three-Phase Ready: Compatible with:
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120/240V split-phase for residential
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120/208V or 127/220V three-phase for commercial
Scale and adapt across residential, retail, or small commercial environments
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Virtual Power Plant (VPP) Compatible: Get rewarded for supporting the grid. The Envy True 12kW is approved by utilities across the U.S. and Puerto Rico for VPP and demand response programs, allowing you to earn compensation during peak load events.
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Remote Monitoring and Firmware Updates: Stay in control with the Fortress Power mobile app, featuring:
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Real-time monitoring
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Battery performance tracking
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Grid and solar metrics
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Remote firmware upgrades
Applications:
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Whole-home solar + storage
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Light commercial buildings
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Off-grid systems
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Net metering & TOU optimization
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EnergyBroker & VPP participation
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Zero-export & smart load control
What’s Included:
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1 × Fortress Power Envy True 12kW Inverter
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Built-in AC and DC Breakers
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Integrated Rapid Shutdown Transmitter
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Mounting Hardware
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Fortress Power Mobile App Access
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User Manual & Warranty Documents
Compatible with all Fortress Power 48V batteries including the eVault MAX, eFlex MAX, and eForce.
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 |
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 |
120/240V Single Split Phase, 120/208V Single Split Phase, 120/208V Three Phase, 120/220V Three Phase |
Max. Continuous AC Current |
50A @ 240V / 50A @208V |
Nominal AC Frequency |
50Hz/60Hz |
Max. Output Power (Off-Grid) |
12000W (240V) |
Peak Power |
14kW 10 minutes / 16kW 5 minutes / 20kW 500ms |
Switching Time |
Seamless |
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Compatible Battery Type |
Lithium and Lead acid batteries |
Nominal Battery Voltage |
48V |
Max. Efficiency |
97.5% |
Module Level Rapid Shut Down (RSD) |
Built-in APsmart Transmitter |
Certifications |
UL1741, UL1741SB, IEEE1547A, Rule 21, ISO-NE, FCC15 class B, HECO, CEC, Luma, SGIP, NOM |
Warranty |
10 Years |
Shopping Guide
Why Shop With Us
Why Shop With Ecogrid Supply?
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Authorized & Trusted Dealer: We’re fully authorized for every brand we carry, so you get genuine products with full manufacturer warranties.
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Fast, Reliable Shipping: All items ship from our U.S. warehouses with quick and dependable freight options to keep your project on track.
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30-Day Hassle-Free Returns: Change your mind? No worries — enjoy a simple 30-day return process for peace of mind.
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Real Human Support, 7 Days a Week: Reach us by phone, email, or live chat — no bots, no overseas call centers, just real people who know off-grid power systems.
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Expert Energy Guidance: Our solar and backup energy specialists are ready to help you with design, planning, product questions, and installation tips.
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USA-Based Service: Our team proudly operates here in the United States, providing local, knowledgeable, and friendly support.
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Secure Payments: Shop confidently with our encrypted, secure checkout to protect your personal and payment information.
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Built for Energy Independence: Whether you’re powering a cabin, prepping for emergencies, or going off-grid, our products are selected for performance, reliability, and sustainable operation.