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Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

$8,975.00 -5% $8,480
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Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

US Solar Supplier

Sale

Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

Available
MPN No: Envy Duo 21-US (16KW) + eBoost-16.0 + eWay
$8,975.00 -5% $8,480

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Expected ship date May 03 - 10

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$8,975.00 -5% $8,480
Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

Sale

Fortress Power 16kWh Energy Storage Kit: Envy Duo 21 | 16kW Peak / 12kW Continuous Hybrid Inverter + eBoost 16 kWh + eWay Bundle

MPN No:

Envy Duo 21-US (16KW) + eBoost-16.0 + eWay

Expected ship date May 03 - 10
$8,975.00 -5% $8,480
Sale

Fortress Power 16kWh Energy Storage 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.

FAQ

Shipping costs at US Solar Supplier are calculated based on the weight and dimensions of the product(s) in your order. The company utilizes FedEx or UPS for ground shipments and trusted freight carriers for larger shipments. All shipments are insured for customer protection.
For standard delivery, most orders will arrive at their destination within 7 to 10 business days. Please note that these estimates can change depending on the carrier's operational capabilities and other uncontrollable factors.
It is essential to meticulously inspect your shipment upon delivery. If any damage or issues are found, note them on the Bill of Lading (BOL) or the delivery receipt. Major visible damage should result in the rejection of the delivery. Any damages must be reported to US Solar Supplier by email within 24 hours of delivery, including the signed BOL and any supporting documents or photos.
US Solar Supplier offers only the best Tier 1 product offerings and high-quality solar equipment. You can design your solar project using the solar design tool, tailored to fit your needs. If you have specific preferences or deadlines, include this information in the order notes or contact the sales department before placing your order. US Solar Supplier is committed to empowering you with the tools and support needed to ensure your project's success.

US Solar Supplier offers flexible financing options to make solar more accessible. Customers can use PayPal Pay Later or Affirm to split purchases into manageable payments.

All available financing options and details can be viewed here: https://ussolarsupplier.com/pages/financing

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