Fortress Power Solo 6.5K Off-Grid Non-Export Inverter
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The Fortress Power Solo 6.5K delivers 6.5kW of reliable power for off-grid homes, cabins, and backup systems. Its built-in 140A solar charge controller and support for both grid and generator input ensure smooth, uninterrupted operation. Time-of-use scheduling helps you store and use energy efficiently to lower utility costs.
Easily scale up to 39kW by connecting up to six units, and optional CTs provide enhanced safety and precise energy management. Ideal for off-grid living, microgrids, or adding resilience to your home.
Key Features
- High-Capacity Solar Charging - Built-in 140A solar charge controller for faster, more efficient charging from your solar panels
- Reliable Power Management - Automatically switches between grid and generator input to keep your home or cabin running smoothly during outages or low solar production
- Time-of-Use Optimization - Schedule when to store and use energy to reduce utility costs and maximize your solar setup
- Safe & Precise Operation - Optional current transformers (CTs) provide extra safety and precise energy control
- Scalable Up to 39kW - Connect up to six Solo 6.5K units for a total of 39kW as your energy demands grow
- Versatile Applications - Ideal for off-grid living, backup power, smart load management, or microgrid installations
Applications
- Off-Grid Homes & Cabins
- Backup Power Systems
- DIY Solar Setups
- Microgrids & Smart Load Management
Recommended Battery Pairings
The Fortress Power Solo 6.5K pairs seamlessly with the Fortress Power eBoost and eFlex Max battery systems for a complete off-grid or backup energy solution.
Have any questions? Email us at info@solwel.com or give us a call at (346) 432-4228.
Frequently Asked Questions
Is the Fortress Power Solo 6.5K an off-grid only inverter?
The Solo 6.5K is primarily designed for off-grid and non-export applications. It supports both grid and generator input for charging, but does not export power back to the grid.
What solar charge controller is built in?
The Solo 6.5K includes a built-in 140A solar charge controller, eliminating the need for a separate MPPT controller and simplifying your system design.
Can I stack multiple Solo 6.5K units?
Yes - you can connect up to six Solo 6.5K inverters in parallel for a total system output of 39kW, making it suitable for larger off-grid homes or light commercial applications.
What batteries are compatible with the Solo 6.5K?
The Solo 6.5K is designed to work with Fortress Power's eBoost and eFlex Max battery systems. Contact us at (346) 432-4228 for compatibility questions with third-party batteries.
Does it support both single-phase and split-phase?
Yes - the Solo 6.5K supports both single-phase and split-phase (120/240V) configurations, making it compatible with standard U.S. residential wiring.
Does Solwel offer installation support?
Solwel is a solar equipment distributor, not an installation company. However, we can connect you with certified local installers in the Houston and Dallas area. Call us at (346) 432-4228 or email info@solwel.com.