21.1kW Complete Solar Kit - Sol-Ark 18K Inverter - 28-40kWh Lithium Battery [ELITE PRO]

21.1kW Complete Solar Kit - Sol-Ark 18K Inverter - 28-40kWh Lithium Battery [ELITE PRO]Formerly known as the HPK PRO, the newly branded ELITE PRO is the top of our ELITE line, featuring the Sol Ark 18K Hybrid Inverter. This system is designed for those who need massive throughput and total energy security. With a nearly 20,000W solar array and a massive battery bank, the ELITE PRO is a perfect option for power hungry homes, large off grid set ups or even light commercial operations. ELITE Power Kits come with all the parts and pieces

Formerly known as the HPK-PRO, the newly branded ELITE PRO is the top of our ELITE line, featuring the Sol-Ark 18K Hybrid Inverter. This system is designed for those who need massive throughput and total energy security. With a nearly 20,000W solar array and a massive battery bank, the ELITE-PRO is a perfect option for power hungry homes, large off-grid set-ups or even light commercial operations.  

ELITE Power Kits come with all the parts and pieces you need to get up and running. Engineered for a DIY-friendly experience, they are designed so that a homeowner can comfortably handle the majority of the installation, while remaining simple enough for a local professional to step in and finalize the connection quickly.

Typical Uses: What Can It Run?

• Whole-Home Autonomy: Effortlessly manages high-demand loads, including multiple central AC units, EV fast chargers, well pumps, and electric pool heaters simultaneously.

• Massive Surge Capacity: With 18,000W of continuous power and a 36,000W surge capacity, this system easily handles the startup of industrial-sized motors and heavy compressors.

• Advanced Peak Shaving: Reduce utility costs on a massive scale by shifting your entire home or business to battery power during the most expensive peak-rate hours.

• Multi-Day Energy Security: Provides the massive battery reservoir needed to sustain a large property through extended grid outages or long stretches of cloudy weather.

• Light Commercial & Agriculture: Ideal protection for warehouses, medical clinics, or modern farms that require zero-downtime, utility-grade power reliability.

• Outbuildings & Structures: High-capacity power for large shops, professional garages, barns, and ADUs across your property—no trenching or new utility lines required.

What’s Included in Your Kit:

• 21,120W Solar Array: 48 x Phono Draco 440W N-type TOPCon Tier-1 Mono Bifacial Solar Panels featuring a 30-year performance warranty.

• Sol-Ark 18K Hybrid Inverter: A top-tier all-in-one unit with 18kW continuous output and a massive 200A grid passthrough capacity.

• 28.6 – 40.96kWh LFP Batteries: Premium lithium iron phosphate storage designed for high-performance daily cycling with a 10-year warranty (Choose your configuration above).

• Battery Mounting: Includes a professional rack and mounting hardware to securely organize and protect your high-capacity battery bank.

• Complete Cable Package: All necessary pre-cut cables, including 6 x 100ft & 6 x 10ft PV extensions cables and a 5ft heavy-duty battery cable for a straightforward installation.

• Safety & Protection: Includes all required DC disconnects and fuse kits to meet the highest safety standards.

Technical Specifications at a Glance

• Total Solar Wattage: 21,120W

• Total Battery Capacity: 28.6 – 40.96kWh

• System Voltage: 48VDC

• Inverter Rated Power: 18,000W Continuous / 36,000W Surge (10s)

• Solar Input Capacity: Up to 32,400W Max Supported PV Power

• Solar Panel Warranty: 25-Years

Support & Coverage

• Full manufacturer warranties on all included components.

• Lifetime technical support from the dedicated ShopSolar team.

• Access to detailed setup diagrams, wiring schematics, and commissioning guides.

Installation Overview

Most ShopSolar customers install the majority of the system themselves using our provided diagrams and support resources. Final electrical connections can be completed by a local electrician if required. Our technical support team is available throughout the process to ensure a smooth installation from delivery to system startup.

Order Today

All orders are shipped using our innovative packaging and custom pallets, designed for safe, secure delivery to your door. Backed by our free lifetime support, you can order today and secure your energy independence once and for all.