Description
The Fortress Power Solo 6.5kW is a robust split/single-phase solar storage inverter designed for reliable non-export backup, off-grid, and grid-tied energy management.
Key Features
- 140A Built-In Solar Charge Controller: Dual MPPT channels support up to 5,000W + 5,000W of PV input, delivering high-capacity charging for large off-grid and hybrid systems.
- Dual Power Source Compatibility: Intelligent switching between grid and generator input ensures seamless, uninterrupted operation during outages or periods of low solar production.
- Time-of-Use Optimization: Programmable charge and discharge scheduling helps users maximize self-consumption and reduce dependence on costly peak utility rates.
- Optional CT Integration: Current transformers enable precise load monitoring and protection, adding an extra layer of safety and system control.
- Scalable to 39kW: Up to 6 units can be paralleled for a combined output of 39kW, supporting everything from single homes to full microgrid installations.
The Solo 6.5kW is engineered for versatility across the full spectrum of energy independence applications — backup power, off-grid living, self-consumption, and microgrid deployments. Its 13,000VA peak output capacity handles surge-heavy loads with ease, while the pure sine wave output ensures compatibility with sensitive electronics and motor-driven appliances. The 10ms typical switching time minimizes any perceptible interruption during grid-to-battery transitions.
Battery compatibility spans lithium-ion, lead-acid, and user-defined chemistries with a wide 40–60V operating range, and the maximum grid/generator charge power of 9,600W / 4,000W respectively ensures batteries are replenished quickly regardless of source. RS485, CAN, USB, and dry contact interfaces provide extensive BMS and third-party integration options, while optional WiFi and GPRS modules enable full remote monitoring capability.
Certified to IEC62109-1, IEC62109-2, and UL1741 safety standards, the Solo 6.5kW is built to meet rigorous installation requirements for residential and light commercial projects. Its IP20-rated enclosure is designed for indoor installation with intelligent fan cooling to maintain performance across a wide operating temperature range.
Technical Specification
| Specification | Value |
|---|---|
| Rated Output Power | 6,500W |
| Maximum Peak Power | 13,000VA |
| Rated Output Voltage | 120/240VAC (Single/Split-Phase) |
| Output Waveform | Pure Sine Wave |
| Rated Frequency | 50/60Hz |
| Switching Time | 10ms (Typical) |
| Parallel Capacity | Up to 6 Units (39kW Total) |
| Rated Battery Voltage | 48VDC |
| Battery Voltage Range | 40 – 60VDC |
| Compatible Battery Types | Lithium-Ion / Lead-Acid / User-Defined |
| Max Battery Charge Current (with PV) | 140A DC |
| Max Grid Charge Power | 9,600W |
| Max Generator Charge Power | 4,000W |
| Number of MPPT Channels | 2 |
| Max PV Input Power | 5,000W + 5,000W |
| Max PV Short Circuit Current | 18A + 18A |
| Max PV Open Circuit Voltage | 550VDC / 550VDC |
| MPPT Operating Voltage Range | 150 – 450VDC |
| MPPT Tracking Efficiency | 99.9% |
| Max Battery Inverter Efficiency | 93% |
| AC Input Voltage Range | 65 – 140VAC |
| Grid Frequency Range | 50/60Hz |
| Bypass Overload Current | 40A |
| Communication Interface | RS485 / CAN / USB / Dry Contact |
| External Module (Optional) | WiFi / GPRS |
| Safety Certification | IEC62109-1, IEC62109-2, UL1741 |
| EMC Certification | EN61000-6-1, EN61000-6-3, FCC Part 15 Class B |
| Operating Temperature | 14°F – 122°F (-10°C – 50°C), Derate above 115°F |
| Protection Degree | IP20 (Indoor Only) |
| Noise Level | <60dB |
| Cooling Method | Fan |
| Dimensions (H×W×D) | 686 × 410 × 155mm (27 × 16.1 × 6.1 in) |
| Weight | 50.71 lbs (23 kg) |
Specs & Info