• Description

Fortress Power Solo 6.5K Non-Export Hybrid Inverter

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 multiple units, and optional CTs provide enhanced safety and precise energy management. Ideal for off-grid living, microgrids, or adding resilience to your home.

📄 View Data Sheet (PDF)

Solo 6.5K Inverter Data Sheet

Solo 6.5K Inverter User Manual

GENERAL DATA
Weight 47.84 lbs (21.7 kg)
Operating Temperature 14 ºF - 131 ºF (-10 ºC - 55 ºC), >45 ºC derating
Protection Level IP20 (for indoor use only)
Noise <60db
Dimensions (H x W x D) 27 x 16.1 x 5.5 in (686 x 410 x 140 mm)
Cooling Mode Fan
INVERTER OUTPUT
Rated Output Power 6,500W
Maximum Peak Power 13,000 VA
Rated Output Voltage 120/240 VAC (Single/Split-Phase)*
Rated Frrequency 50/60Hz*
Output Wave Pure Sine Wave
Switching Time 10 ms (typical value)
Parallel Number 6
BATTERY PARAMETERS
Compatible Battery Type Lithium-ion battery / lead-acid battery / user- defined battery*
Rated Battery Voltage 48 Vdc
Voltage Range 40 Vdc-60 Vdc*
Maximum Grid/Generator Charge Power TBD
Maximum Battery Charge Power (with PV) 140 A DC*
PV INPUT
MPPT Channel Number 2
Maximum Input Power 5,000W+5,000W
Maximum Input Short Circuit Current 18 / 18 A
Maximum Open Circuit Voltage 550 Vdc / 550Vdc
MPPT Operating Voltage Range 150 Vdc-450 Vdc
GRID / GENERATOR INPUT
Input Phase Voltage Range 65 VAC - 140 VAC
Grid Frequency Range 50/60 Hz
Bypass Overload Current 40A
COMMUNICATION
Built-in Interface RS485 / CAN / USB / dry contact*
External Module (Optional) Wi-Fi / GPRS*
EFFICIENCY
MPPT Tracking Efficiency 99.9%
Maximum Efficiency of Battery Inverter 93%
STANDARDS & CERTIFICATIONS
Safety Standards IEC62109-1, IEC62109-2, and UL1741
EMC EN61000-6-1, EN61000-6-3, and FCC 15 class B
RoHS Yes

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.
REAL REVIEWS, REAL RESULTS

Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

Bryan Cunningham
Off grid Kit • Dec 21, 2025
★★★★★

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

Related Products