16kWh Battery Kit: Envy Duo 21 Hybrid Inverter + eBoost 16 kWh + eWay Solar Bundle
MPN No: Envy Duo 21-US (16KW) + eBoost-16.0 + eWay
Expected ship date Jun 12 - 19
In Stock
8,975.00
-5%
$8,480.00
Sale
16kWh Battery Kit: Envy Duo 21 Hybrid Inverter + eBoost 16 kWh + eWay Solar Bundle
16kWh Battery Kit: Envy Duo 21 Hybrid Inverter + eBoost 16 kWh + eWay Solar Bundle
Regular price
$8,975.00
-5%
$8,480
6% OFF
LESS THAN 50
Sale
16kWh Battery Kit: Envy Duo 21 Hybrid Inverter + eBoost 16 kWh + eWay Solar Bundle
16kWh Battery Kit: Envy Duo 21 Hybrid Inverter + eBoost 16 kWh + eWay Solar Bundle
Available
MPN No: Envy Duo 21-US (16KW) + eBoost-16.0 + eWay
Regular price
$8,975.00
-5%
$8,480
Expected ship date Jun 12 - 19
Ships from U.S. Warehouse
Trusted by Thousands
Expert U.S. Support
We offer multiple secure payment options for your convenience
We offer multiple secure payment options for your convenience
Regular price
$8,975.00
-5%
$8,480
16kWh Battery Kit: Envy Duo 21 Hybrid Inverter + eBoost 16 kWh + eWay Solar Bundle
MPN No:
Envy Duo 21-US (16KW) + eBoost-16.0 + eWay
Expected ship date Jun 12 - 19
Sale
Fortress Power 16kWh Battery Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh Lithium Battery + eWay Bundle
Save $800 with bundling and free ship.
This Kit Includes
-
(1) Fortress Power Envy Duo 21 Hybrid Inverter
MPN: Envy Duo 21-US (16KW) -
(1) Fortress Power eBoost 16kWh Lithium Battery
MPN: eBoost-16.0 -
(1) Fortress Power eWay Integration Hub
MPN: eWay
Power your home with a complete, scalable energy solution built for real-world demand. The Fortress Power Envy Duo 21 + eBoost bundle delivers serious performance with flexible installation options and clean system integration. Designed for both grid-tied and backup applications, this system pairs a high-capacity hybrid inverter with Fortress Power’s robust 48V battery platform and streamlined eWay connectivity—giving you reliable energy today and room to grow tomorrow.
Key Benefits
- 16kW Peak / 12kW Continuous Output – Handles whole-home loads and high-demand appliances with confidence
- 16kWh Battery Storage – Reliable backup power and energy shifting for peak savings
- High PV Input Capacity (Up to 25kW) – Oversize your array for maximum production and ROI
- Dual-Phase Compatibility – Supports 240V split-phase and 208V three-phase applications
- Integrated System Design – Built-in AC/DC breakers and rapid shutdown transmitter simplify installs
- Scalable Architecture – Parallel up to 120kW for larger residential or light commercial projects
- Seamless Fortress Ecosystem – Optimized communication and performance across inverter, battery, and eWay
System Output & Storage
- Peak Output: 16kW
- Continuous Output: 12kW
- Battery Storage: 16kWh
Best Applications
- Whole-home backup power systems
- Grid-tied solar with battery storage
- Energy cost savings through peak shaving and load shifting
- Light commercial energy systems
- Expandable systems planning for future load growth
Product Specifications
| Specification | Details |
|---|---|
| Inverter Model | Envy Duo 21 |
| Inverter Output (Continuous) | 12kW |
| Inverter Output (Peak) | 16kW |
| Battery Capacity | 16kWh |
| Battery Chemistry | LiFePO4 |
| Nominal Voltage | 48V |
| Max PV Input | 25kW |
| System Type | Hybrid (Grid-Tied + Battery Backup) |
| Phase Compatibility | 240V Split-Phase / 208V 3-Phase |
| Scalability | Up to 120kW |
| Monitoring | Fortress Power System Monitoring |
| Installation Type | Indoor / Outdoor (rated components) |
| Total System Weight | ~480 lbs |
Warranty
- Inverter Warranty: 10 Years
- Battery Warranty: 10 Years
- eWay Warranty: Manufacturer standard warranty
About Fortress Power
Fortress Power is a leading U.S.-based energy storage manufacturer known for high-performance lithium battery systems and integrated energy solutions. With a focus on safety, scalability, and installer-friendly design, Fortress Power products are engineered to meet the demands of modern residential and commercial energy systems.
