15KW Complete Offgrid Solar Kit - 15.36kWh Pytes Lithium Battery + 15K Sol Ark Inverter +15.4KW Solar with Mounting Rails and Wiring

The 15KW Complete Offgrid Solar Kit - 15.36kWh Pytes Lithium Battery + 15K Sol Ark Inverter +15.4KW Solar with Mounting Rails and Wiring is engineered for full off-grid home power. Featuring a 15.4KW bifacial solar array, Sol-Ark 15K hybrid inverter, and 15.36kWh Pytes lithium storage, this system generates approximately 69,300 watts per day with 4.5 peak sun hours. It is ideal for mid-sized homes using around 2,000 kWh/month and is fully expandable for additional panels or batteries as your needs grow.

Specifications

• Solar Array: 28 × 550W bifacial mono double-glass panels (15,400W total)

• Inverter: Sol-Ark 15K Hybrid/Off-Grid All-in-One Inverter (48V) with built-in MPPT charge controller

• Battery Storage: 3 × 5.12kWh Pytes E-Box 48100 lithium batteries (15.36kWh total) + Forest-RB enclosure (holds up to six batteries)

• Mounting Rails: Complete IronRidge mounting rail system with splices, legs, fasteners, and bolts

• Balance of System: Solar combiner box, battery cable set, 10× MC4 10AWG 10' cable sets, 250' 10AWG PV direct burial wire, 100' 6AWG AC cable, installation manual

Features

• Bifacial Technology: Rear-side energy gain up to 25% with double-glass construction; excellent low-light performance

• High Durability: 5400Pa snow load and 2400Pa wind load rating; 30-year power output warranty

• Scalable System: Expandable design allows adding more batteries or additional solar panels at any time

• Appliance Capability: Runs wells, washing machines, fans, TVs, lighting, refrigerators, freezers, electronics, and smaller AC units

• Array Wiring Flexibility: Includes parallel MC4 cable sets and 250' PV wire for long-distance array connections

Maintenance

• Daily: Inspect inverter status and ensure panels remain free from heavy debris or shading

• Weekly: Confirm production output, check wiring visibility, and ensure tight connections

• Annually: Clean entire solar array, inspect rail hardware, and test all electrical connections

Inverter Specifications

• Output: 120/240V split-phase; supports grid-tie or off-grid operation

• Battery Compatibility: Works with or without batteries; supports 48V lithium or lead-acid

• Performance: 9kW continuous, 16kW surge (10 sec); built-in MPPT with 3 independent inputs

• Interface: LCD touchscreen, WiFi enabled; generator input supported

• Build: DC transformerless design; 97.5% efficiency; NEMA 3R outdoor-rated; 10-year warranty

• Advanced Features: Parallel stack up to 8 units; 4ms transfer time between battery and grid modes