Fortress Power Solo 6.5K Inverter

Reliable, Flexible Power for Non-Export Applications
The Fortress Power Solo 6.5K is a powerful and flexible 6.5kW split/single-phase hybrid inverter designed for off-grid living, backup power, and grid-tied solar systems. Featuring a built-in 140A solar charge controller and support for both grid and generator input, the Solo 6.5K Inverter ensures seamless power management and reliable operation in any energy scenario. Its intelligent switching system provides uninterrupted power, while time-of-use scheduling helps homeowners lower utility bills by optimizing when energy is stored and used.

Perfect for residential applications, the Solo 6.5K Inverter supports parallel installation of up to six units—delivering up to 39kW of output power. Optional current transformers (CTs) enhance safety and precision by monitoring current flow and improving system stability. Whether you’re powering a remote cabin, designing a smart microgrid, or adding resilience to your grid-connected home, the Solo 6.5K Inverter delivers clean, stable energy when and where you need it.

* While the Solo 6.5K is only approved for indoor installations, when placed inside the Fortress Power FlexTower, it can be installed outdoors.

Features:

High-Capacity Solar Charging
The built-in solar charge controller supports up to 140A, maximizing solar input for faster, more efficient battery charging—ideal for large off-grid systems or high-usage households.

Dual Power Source Compatibility
Supports grid and generator input with intelligent switching, giving you seamless power management and uninterrupted operation during outages or low solar production.

Time-of-Use Optimization
Advanced time-sharing functionality allows users to schedule charge and discharge cycles, optimizing energy usage and reducing reliance on expensive utility rates.

Safe & Stable Operation with Optional CT
Optional current transformers (CTs) enhance system safety and reliability by monitoring current flow and enabling precise load control and protection.

Scalable Up to 39kW
Parallel up to six units for a total output of 39kW, making it a powerful choice for homes and off-grid or grid-tied applications.

Versatile Application Support
Designed for a range of energy scenarios including Backup Power and Off-Grid Living — all in one rugged and intelligent package.

Specifications:

Downloads:

• Data Sheet
• Installation Manual
• OGPE Certification
• UL1741
• Warranty