16kW Solar + 19.2kWh Storage Offgrid Kit (Trina Solar + Fortress Power)

Trina 445W Solar Panels TSM-NEG9R.28-445

Envy Duo 21 Hybrid Inverter

eForce 19.2kWh LFP Battery

Suitable for Offgrid Only

This Kit Includes

(36) Trina Solar 445W N-Type Dual Glass Modules
(1) Fortress Power Envy Duo 21 Hybrid Inverter
(1) Fortress Power eForce 19.2kWh Battery System
(1) Fortress Power Guardian Monitoring Hub

This high-output hybrid solar + storage system is built for homeowners and light commercial users who want serious production and true whole-home backup capability. Pairing Trina’s high-efficiency 445W dual-glass modules with the Fortress Power Envy Duo 21 hybrid inverter and eForce 19.2kWh battery, this system delivers scalable, reliable energy with modern monitoring included.

The Envy Duo 21 provides 12kW continuous output and up to 16kW peak, while the eForce battery delivers 19.2kWh of usable storage, making this kit ideal for backup, self-consumption, and energy independence.

Key Benefits

High Solar Production (16.02kW Array)

36 × 445W modules = 16,020W DC system size
Up to 22.8% module efficiency
N-type i-TOPCon cells for improved long-term output

Whole-Home Backup Power

12kW continuous / 16kW peak output
Supports both 240V split-phase and 208V systems
Seamless integration with Fortress batteries

19.2kWh Energy Storage

Modular, stackable LFP battery system
Up to 8000 cycle life
Built-in heating and IP65 rating for outdoor durability

Advanced Monitoring Included

Real-time system tracking via Fortress Guardian
Monitor SOC, voltage, current, and system performance
Wi-Fi or Ethernet connectivity

Scalable System Design

Expand inverter up to 120kW (parallel)
Expand storage up to 153kWh total

Typical Applications

Whole-home backup power
Grid-tied with battery backup
Off-grid and hybrid systems
Time-of-use optimization and peak shaving

Product Specifications

Solar Modules – Trina TSM-NEG9R.28 (445W)

Specification	Value
Module Power	445W
Module Efficiency	Up to 22.8%
Cell Type	N-type i-TOPCon Monocrystalline
Dimensions (L x W x H)	69.37 x 44.65 x 1.18 in
Weight	48.06 lbs per panel
Total Panels	36
Total Array Size	16.02 kW
Operating Temp	-40°F to 185°F
Max System Voltage	1500V DC

Hybrid Inverter – Fortress Envy Duo 21

Specification	Value
Continuous Output Power	12,000W
Peak Output Power	16,000W
Max PV Input	25,000W
MPPTs	3
Voltage	120/240V or 120/208V
Efficiency	97.5% (PV to grid)
Dimensions (L x W x H)	22.3 x 35.2 x 11.2 in
Weight	125.71 lbs
Battery Voltage	48V

Battery – Fortress eForce 19.2kWh

Specification	Value
Nominal Energy	19.2 kWh
Battery Type	LFP (Lithium Iron Phosphate)
Nominal Voltage	48V
Cycle Life	Up to 8000 cycles
Operating Voltage Range	39–54V
Dimensions (L x W x H)	24.4 x 9.4 x 53.1 in
Weight	487 lbs
Ingress Rating	IP65

Monitoring – Fortress Guardian

Specification	Value
Function	Battery monitoring & cloud data
Connectivity	Wi-Fi / Ethernet
Power Consumption	5W
Dimensions (L x W x H)	7.25 x 6 x 1.25 in
Weight	0.8 lbs

Total System Weight

Panels: 48.06 lbs × 36 = 1,730.16 lbs
Inverter: 125.71 lbs
Battery: 487 lbs
Guardian: 0.8 lbs

Warranty

Trina Solar Panels: 15-year product / 30-year performance
Fortress Envy Inverter: 10-year warranty
Fortress eForce Battery: 10-year warranty

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16kW Solar Kit + 19.2kWh Battery Offgrid Kit | Trina 445W + Fortress Power Envy Duo 21 + eForce 19.2 kWh

16kW Solar Kit + 19.2kWh Battery Offgrid Kit | Trina 445W + Fortress Power Envy Duo 21 + eForce 19.2 kWh

16kW Solar Kit + 19.2kWh Battery Offgrid Kit | Trina 445W + Fortress Power Envy Duo 21 + eForce 19.2 kWh

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