Midnite Power MN15-12KW-AIO 10kW Hybrid Inverter/Charger

Midnite Power MN15-12KW-AIO — "TheOne" 11.4kW Split-Phase All-in-One Hybrid Inverter

The Midnite Power MN15-12KW-AIO, known as "TheOne," is a feature-packed all-in-one hybrid inverter built by one of the solar industry's most trusted American manufacturers. Combining 11,400W of split-phase AC output, three independent MPPT charge controllers, three programmable load outputs, generator input, AC coupling support, and web-based remote monitoring into a single NEMA 3R-rated enclosure, TheOne delivers capabilities not found in any other AIO inverter at its price point. Whether you're building a new off-grid system, adding battery backup to an existing grid-tied installation, or replacing a multi-component system with a single clean unit, the MN15-12KW-AIO is engineered to do it all.

11,400W Continuous Output — Whole-Home Split-Phase Power

TheOne delivers 11,400W of continuous AC output at 120/240V split-phase, covering the full load of a typical American home including central HVAC, well pumps, electric ranges, and EV charging. Split-phase output means both 120V and 240V circuits are fully supported without adapters or additional hardware — plug your existing panel directly in and power everything you already have.

Three Independent MPPT Charge Controllers — 15kW PV Input

Most all-in-one inverters offer one or two MPPT channels. TheOne gives you three — with input ratings of 30A, 22A, and 22A respectively — for a combined maximum PV input of 15,000W. Three independent MPPTs let you wire separate arrays, different roof orientations, or mixed panel types into independent strings, each optimized individually for maximum harvest. No cross-string shading losses. No forced string matching. Just full production from every panel in your system.

600VDC Input — Higher Voltage Than Most Competing Inverters

The MN15-12KW-AIO accepts the full 600VDC allowed under the National Electrical Code — 100V higher than the 500VDC limit found on most competing inverters. This higher input voltage ceiling lets you wire longer strings with more panels per string, reducing the number of parallel strings, minimizing wiring runs, and lowering installation labor and material costs. For large arrays or long roof-to-inverter distances, 600VDC support is a meaningful real-world advantage.

Three Programmable 120/240VAC Outputs — Built-In Load Shedding

This is where TheOne truly sets itself apart. Three integrated 120/240VAC programmable output circuits — rated at 30A, 50A, and 60A respectively — replace the need for an external programmable distribution box or separate load shedding controller. Each output can be independently programmed to shed non-critical loads when battery state-of-charge drops below a set threshold, or to activate opportunity loads when excess solar is available. The result is smarter energy management baked directly into the inverter — at no additional hardware cost.

Grid-Tie, Off-Grid, and Backup — All Three Modes Supported

TheOne operates seamlessly in grid-tied, off-grid, and grid-interactive backup modes. In grid-tie mode it offsets utility consumption and supports net metering. In backup mode it transfers automatically to battery power during outages. In off-grid mode it runs your entire system independently from solar and battery with no grid connection required. Switching between modes is handled automatically based on grid status and your configured priorities.

AC Coupling — Integrate Existing Solar

For homes that already have a grid-tied solar inverter installed, the MN15-12KW-AIO supports AC coupling — allowing existing solar production to flow through TheOne to charge batteries and power loads. No need to replace a working grid-tie system. Simply add TheOne alongside your existing equipment and gain battery backup, energy management, and off-grid capability from your current solar investment.

Generator Input — Automatic Source Switching

TheOne includes a dedicated AC input for generator connection, with intelligent source switching between grid, generator, and battery. When solar production and battery reserves are insufficient, a connected generator can serve as a backup charging source and supply loads directly — keeping your system running through extended cloudy periods or heavy load events without manual intervention.

Battery Flexibility — Lithium, AGM, and Flooded Lead-Acid

The MN15-12KW-AIO works with a wide range of 48V battery chemistries including lithium iron phosphate (LiFePO4), AGM, gel, and flooded lead-acid. With 210A of charge and discharge current capacity, it charges battery banks quickly and dispatches stored energy efficiently. No proprietary battery lock-in — choose the chemistry and brand that fits your budget and use case.

98% Peak Efficiency — Best-in-Class Conversion

TheOne achieves 98.0% peak efficiency on the PV-to-AC conversion path and 94.5% efficiency on the battery-to-AC path — among the highest ratings available in its class. At these efficiency levels, the energy losses between your solar panels and your outlets are minimal, meaning more of what your panels produce actually reaches your loads and fewer kilowatt-hours are wasted as heat.

Web-Based Remote Monitoring and Control

Real-time system monitoring and remote configuration are available through Midnite's web-based app, accessible from any browser or mobile device. Track solar production, battery state-of-charge, load consumption, grid import/export, and inverter status from anywhere — and adjust settings remotely without a site visit. A built-in display on the unit provides local visibility for installation and field diagnostics.

UL 1741-SB Certified — Grid-Compliant and Permit-Ready

TheOne carries UL 1741-SB certification, meeting all Advanced Inverter Function requirements for grid-tied operation across U.S. utility territories. UL 1741-SB listing means the inverter supports volt-var, frequency-watt, and other advanced grid support functions required by an increasing number of utilities and state interconnection standards — making it permit-ready for grid-tied installations nationwide.

10-Year Warranty and NEMA 3R Enclosure

Midnite backs TheOne with a full 10-year warranty — a testament to the build quality and engineering confidence behind the product. The NEMA 3R-rated enclosure provides reliable protection against rain, sleet, and external ice formation, making it suitable for both indoor and outdoor installation. At 98 lbs with dimensions of 38.3" × 16.5" × 10.27", it is a substantial unit designed for permanent, long-term installations.