25KW Complete Offgrid Solar Kit - 15.36kWh Pytes Lithium Battery + 2x15K Sol Ark Inverter +26.4KW Solar with Mounting Rails and Wiring

The 25KW Complete Offgrid Solar Kit - 15.36kWh Pytes Lithium Battery + 2x15K Sol Ark Inverter +26.4KW Solar with Mounting Rails and Wiring is a high-performance power system built for fully off-grid homes. Featuring 26.4KW of bifacial solar panels, two Sol-Ark 15K hybrid inverters, and 15.36kWh of Pytes lithium battery storage, this package provides approximately 118,800 watts of daily solar production in 4.5 peak-sun-hour regions. It is ideal for large homes consuming around 3,500 kWh per month and can be expanded with additional panels or batteries as needed.

Specifications

• Solar Array: 48 × 550W bifacial mono panels (26,400W total)

• Inverters: 2 × Sol-Ark 15K Hybrid/Off-Grid All-in-One 48V inverters with built-in MPPT charge controllers

• Battery Bank: 3 × Pytes E-Box 48100 lithium batteries (15.36kWh total)

• Battery Enclosure: Pytes Forest-RB (holds up to 6 Pytes E-Box modules)

• Mounting Hardware: IronRidge mounting rails, splices, legs, fasteners, and bolts (roof mount)

• Wiring & BOS Components: 2× solar combiner boxes, battery-to-inverter cable set, 2× gutter boxes, AC combiner kit, 500' 10AWG PV burial wire, 100' 6AWG AC cable, 20' 4/0 AC main line, MC4 crimp tool, installation manual

Features

• Bifacial Double-Glass Panels: Up to 25% rear-side production gain; 5400 PA snow load; 2400 PA wind load; 30-year power warranty

• Sol-Ark 15K Performance: 120/240 split phase, battery optional, grid-tie or off-grid, 3× MPPT inputs, generator support, LCD touchscreen, WiFi-enabled

• High Output Efficiency: 97.5% inverter efficiency with transformerless design

• Outdoor Rated: NEMA 3R weatherproof design for indoor/outdoor installation

• Expandable System: Parallel stacking up to 8 Sol-Ark units

• Fast Transfer: 4ms transfer time from grid to battery power

Maintenance

• Daily: Check inverter screen and ensure panels are unobstructed

• Weekly: Inspect wiring, combiner boxes, and battery connections

• Annually: Perform a full system inspection, clean panels, update firmware, and torque-check mounting hardware

Warranty

• Sol-Ark Inverters: 10-year manufacturer warranty

• Solar Panels: 30-year performance warranty