Sol-Ark 18K + Pytes V16 16kWh Home Battery Backup Kit

High-Capacity Solar and Battery Backup With Room to Expand

Build a powerful home energy system with the Sol-Ark 18K-2P-N hybrid inverter and Pytes V16 16kWh LiFePO4 battery. This kit combines high inverter capacity, outdoor-rated battery storage, generator integration and closed-loop battery communication in one expandable energy-storage solution.

The Sol-Ark 18K can manage power from solar panels, the utility grid, a generator and battery storage. The Pytes V16 supplies 16kWh of nominal energy storage in a compact, IP66-rated enclosure designed for indoor or outdoor installation.

This Kit Includes

• (1) Sol-Ark 18K-2P-N Hybrid Inverter
• (1) Pytes V16 16kWh LiFePO4 Battery

This unit comes with all the Power and Comms cables needed to install in an inverter system

Why Choose the Sol-Ark 18K and Pytes V16?

• 18kW continuous inverter capacity: Supports demanding residential and light-commercial electrical systems.
• 16kWh nominal battery capacity: Store solar energy or grid power for outages, nighttime use and time-of-use management.
• Closed-loop battery communication: The Sol-Ark and Pytes systems can exchange operating information through compatible CAN or RS485 communication.
• Outdoor-ready equipment: The Sol-Ark inverter is IP65/NEMA 3R rated, while the Pytes V16 battery carries an IP66 enclosure rating.
• Generator integration: The Sol-Ark 18K includes a dedicated generator connection with generator-start capabilities.
• Expandable storage: The Pytes V16 platform supports up to 16 batteries, subject to proper system design and applicable electrical codes.
• Low-temperature operation: Integrated battery heating helps support charging in colder environments.
• Long-life LFP chemistry: Lithium iron phosphate chemistry provides strong thermal stability and long cycle life.

Designed for Energy Independence and Grid Resilience

This kit can be configured for several different operating goals, including:

• Home battery backup during utility outages
• Solar self-consumption and nighttime solar-energy use
• Time-of-use electricity-rate management
• Generator-supported backup systems
• Grid-connected or appropriately designed off-grid installations
• Future battery-capacity expansion

A 16kWh battery can support essential household loads or larger loads for shorter periods. Actual backup duration depends on the connected loads, battery state of charge, system settings, temperature, inverter losses and the reserve capacity selected during commissioning.

Product Specifications

Battery Safety and Certifications

• Built-in aerosol fire-suppression system
• Emergency shutdown capability
• Integrated battery-management system
• Integrated low-temperature heating film
• UL 9540
• UL 9540A
• UL 1973
• UN38.3

Sol-Ark Certifications

• UL 1741 3rd Edition SB
• UL 1741 CRD-PCS
• IEEE 1547-2018
• IEEE 2030.5 interoperability
• UL 1699B PV DC arc-fault protection
• CSA C22.2 No. 107

Warranty

• Sol-Ark 18K: 10-year manufacturer warranty
• Pytes V16: 10 years or 8,000 cycles, whichever occurs first, subject to manufacturer terms and operating conditions

Professional Installation Required

This equipment should be designed, installed and commissioned by a qualified solar or electrical professional. The installer must confirm conductor sizing, overcurrent protection, disconnects, grounding, communication cabling, firmware compatibility, battery charge limits, permitting requirements and compliance with all applicable electrical and building codes.

Because this configuration uses one Pytes V16 battery, the inverter's battery charge and discharge limits must be programmed according to the specifications of the single-battery bank.

Frequently Asked Questions

Are the Sol-Ark 18K and Pytes V16 compatible?

Yes. Pytes documents closed-loop integration between the V16 and Sol-Ark 18K through compatible battery communication. The correct communication cable, firmware and inverter settings must be used during commissioning.

Can this system provide whole-home backup?

The Sol-Ark 18K has enough inverter capacity to operate many household loads, but backup performance is also limited by the battery bank. A single V16 provides approximately 6.4kW recommended continuous battery output and 10.24kW maximum output. Large loads may require load management, support from solar or a generator, or additional batteries.

How long will the 16kWh battery run my home?

Runtime depends on how much power the home is using. Essential loads can operate much longer than central air conditioning, electric water heating, EV charging or other high-demand equipment. A professional load analysis is the best way to estimate backup duration.

Can I add another Pytes V16 later?

Yes. The Pytes V16 platform is expandable. Adding a second battery can increase available energy and battery-bank output, but the expansion should follow Pytes requirements for battery age, state of charge, firmware, cabling and overcurrent protection.

Can the system operate without solar panels?

Yes. The system can be configured to charge the battery from the grid and provide backup power when the grid fails. Available operating modes may depend on local utility rules and installer programming.

Does the Sol-Ark 18K support a generator?

Yes. The inverter includes a dedicated generator connection and generator-start capabilities. Generator compatibility, wiring and operating parameters must be verified by the installer.

Can the equipment be installed outdoors?

The Pytes V16 has an IP66 enclosure rating, and the Sol-Ark 18K is rated IP65/NEMA 3R. Installation must still follow the manufacturers' clearance, temperature, mounting and environmental requirements.

Are solar panels included?

No. This kit includes the Sol-Ark hybrid inverter and Pytes battery only. Solar panels, racking and other balance-of-system components can be selected separately based on the installation.

What happens if my power requirements increase?

The system can be expanded with additional Pytes V16 batteries, and the Sol-Ark 18K supports a large solar array. All expansion plans should be reviewed by a qualified system designer.