Fortress Power · Batteries
SKU: FP-1EnvyDuo-3EBoost
Envy Duo 21 + eBoost 16kWh Bundle
The Fortress Power Envy Duo 21 + eBoost bundle pairs a high-capacity 48V hybrid inverter with modular LFP battery storage for residential and light commercial solar + backup.
- Regular price
- $18,906.04
- Sale price
- $18,906.04
- Regular price
-
$24,286.79
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Frequently bought together
The details.
The Fortress Power Envy Duo 21 + eBoost bundle pairs a high-capacity 48V hybrid inverter with modular LFP battery storage for residential and light commercial solar + backup. With 3 MPPTs, up to 25kW PV input, and scalable storage (up to 16 eBoost units), it’s built for clean DIY installs today—and easy expansion tomorrow.
Key Features & Benefits:
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High-capacity hybrid inverter: 48V system with 12kW continuous backup output and up to 16kW max export with PV
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Large solar input support: accepts up to 25kW PV array power with 3 MPPTs (inputs per MPPT: 2:2:1)
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Dual-phase compatibility: supports 240V split-phase and 208V three-phase applications
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Expandable power: parallel up to 10 inverters (up to 120kW total output)
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Fast, code-friendly protection: integrated AC/DC breakers + rapid shutdown transmitter
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DIY-friendly, clean wiring: integrate battery + inverter via eWay wireway / conduit box for organized AC/DC routing
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Scalable storage: 16kWh per eBoost unit, expandable up to 16 units (up to ~256kWh nominal)
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All-weather battery design: IP65 enclosure + internal heating elements for extreme conditions
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Smart monitoring & updates: mobile app monitoring + remote firmware updates (inverter)
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Safety + certifications (inverter & battery): see “Specs in a Glance” for listed standards
Why It’s DIY-Friendly
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Simple installation: connect eBoost + Envy Duo 21 using the eWay conduit/wireway system (with wall or floor mounting options)
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Clean wiring: AC/DC line separation inside the wireway for organized routing
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Built-in safety: battery/load breakers in the inverter + battery safety features reduce external components
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Expandable design: add more eBoost batteries in parallel as your storage needs grow
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Flexible inputs: 3 independent MPPTs + grid and generator inputs support varied energy sources
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Smart setup: adjust settings and manage firmware with the app/Guardian tools
Specs in a Glance:
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Battery (per unit): 16kWh usable energy (LFP), 48V
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Inverter type: 48V hybrid inverter
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AC output compatibility: 240V split-phase and 208V three-phase
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Solar inputs: 3 MPPT (independent)
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PV input (max): up to 25kW (inverter)
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Continuous backup output: 12kW (inverter)
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Max export power: up to 16kW (inverter)
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System expansion: add eBoost batteries via eWay; scalable up to 16 batteries and 10 inverters (per provided system guidance)
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Warranty: 10 years (battery + inverter)
What’s Included:
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Fortress Power Envy Duo 21 Hybrid Inverter (qty varies by option)
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Fortress Power eBoost 16kWh LFP Battery (qty varies by option)
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Fortress Power eWay Conduit Box
Ideal For:
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Whole-home or critical-load backup power
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DIY off-grid cabins, homesteads, and workshops
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Homes/light commercial sites needing high-capacity storage in a compact footprint
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Systems that may grow over time (easy battery add-ons)
User Manual / Documents:
Fortress Power eBoost Scalable Energy Storage System Data Sheet
Fortress Power Envy Duo 21 Hybrid Inverter Data Sheet
Fortress Power Envy Duo 21 Hybrid Inverter Installation Manual