Sol-Ark Pytes Pro 18K Solar Kit

Name: Sol-Ark Pytes Pro 18K Solar Kit
Brand: Sol-Ark
SKU: SA18K-4P-BIF-20.5
Price: 22271.83 USD
Availability: InStock

BY: Sol-Ark

SKU: SA18K-4P-BIF-20.5

| Availability: In stock

$22,271.83

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Solar Panel:

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Product Highlights

Built for home backup and off-grid power
20,480 Wh capacity for extended backup and off-grid runtime
16,000 W solar output for larger off-grid energy systems
18,000 W output to run high-demand appliances and equipment

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Sol-Ark Pytes Pro 18K Solar Kit

The Sol-Ark Pytes Pro 18K Solar Kit combines cutting-edge hybrid inverter technology, long-life lithium battery storage, and high-output solar panels into one professional-grade power system. Designed for homeowners, businesses, and installers who demand reliability, it’s capable of operating completely off-grid or seamlessly switching between grid-tied and hybrid modes.

At the center of this kit is the Sol-Ark 18K-2P Hybrid Inverter, delivering up to 18kW of continuous power with 97.6% efficiency. It supports both 120/240V split-phase and 3-phase configurations, making it ideal for residential and commercial applications alike.

Paired with scalable Pytes V5 LiFePO₄ batteries and SunGold 500W or 550W Mono PERC panels, this system is engineered for high-capacity energy storage, real-time smart monitoring, and long-term durability. Whether you’re powering a full home, off-grid property, or mission-critical operation, this kit ensures stable energy performance and complete energy independence.

Sol-Ark Pytes Pro 18K Solar Kit Features

High-Power Hybrid Inverter - The Sol-Ark 18K-2P inverter delivers 18,000W continuous power and 36,000W surge output, allowing the system to start and run demanding loads such as HVAC units, pumps, and heavy appliances during outages.

Scalable Lithium Battery Storage - The kit includes Pytes V5 LiFePO4 batteries (5.12kWh each), providing expandable energy storage with long cycle life and stable performance for residential or off-grid systems.

Flexible Solar Capacity - The Sol-Ark 18K supports over 40kW of solar input when AC-coupled, enabling large solar arrays and maximizing energy harvesting potential.

Advanced Battery Management - Integrated CANBus and RS485 communication ensures seamless compatibility between the inverter and lithium battery systems for safe and efficient energy management.

Expandable System Architecture - The inverter supports stacking up to 12 units, allowing the system to scale for larger homes or light commercial installations as energy needs grow.

Sol-Ark Pytes Pro 18K Solar Kit Applications

Whole-home backup power – Keep essential appliances running during grid outages.
Off-grid living – Ideal for cabins, remote homes, and rural installations.
Energy independence – Reduce reliance on the utility grid while maximizing solar usage.
Hybrid solar systems – Combine solar, battery storage, and grid power seamlessly.
Large residential systems – Designed for high-load homes with multiple appliances.

What's Included

Everything you need to build your solar energy system. Quantities vary based on the configuration selected.

Sol-Ark 18K-2P Hybrid Inverter (1 unit)
Pytes V5 LiFePO4 Battery – 5.12kWh (4, 6, or 12 units depending on selected kit option)

Pytes V-BOX Battery Cabinet (Outdoor - 4 slot or Indoor - 3 slot cabinet depending on configuration)
Sungold Power Solar Panels – Full pallet of 32 panels (500W or 560W Bifacial option)

Sol-Ark 18K-2P Hybrid Inverter Specifications

Input Data (PV)

Specification	Details
Continuous Power	18,000 W
Surge Power (10s)	36,000 W
Max. Supported PV Power	32,400 W
Rated MPPT Operating Voltage Range	150 – 425 V
Nominal DC Voltage	48 V
Continuous Battery Charge / Discharge Current	350 A
Max Efficiency	97.6 %
Grid Voltage / Frequency	120/240 V (split-phase) • 208 V (optional)
Stackable	Yes; Max 12
BMS Communication	CANBus & RS485 MODBUS
Enclosure	IP65 / NEMA 3R
Ambient Temperature	−40 °C to +60 °C
Weight	137 lb (62.4 kg)
Certifications and Listings	UL1741 3rd SB, UL1741 CRD-PCS, IEEE1547-2018 and interoperability using IEEE2030.5, Hawaiian Electric SRD V2.0, UL1699B PVDC AFCI, UL1998, CSA C22.2 No. 107
Standard Warranty	10 Years

Pytes V5 LiFePO4 Battery – 5.12kWh, 51.2V, 100Ah Lithium Iron Phosphate Battery Specifications

Specification	Details
Nominal Energy	5.12 kWh
Nominal Voltage	51.2 V
Nominal Capacity	100 Ah
Voltage Range	47.5 V – 57.6 V
Max Charge/Discharge Current	100A (5.12kW DC)
Peak Discharge Current	101A–120A (3min) \| 121A–180A (15sec)
Round-Trip Efficiency	> 95 %
Cycle Life	≥ 6,000 cycles
Operating Temperature	Charge: 32°F–113°F / 0°C–45°C \| Discharge: -4°F–122°F / -10°C–50°C
Communication Protocol	CAN / RS485
Dimensions (HxWxD)	17.4 × 20.87 × 5.51 in (424 × 530 × 140 mm)
Weight	97 lb (44 kg)
Chemistry	Lithium Iron Phosphate (LFP)
Scalability	16 pcs (81.92 kWh) in a group \| 6 groups (491.52 kWh) in a system w/ a Hub
Warranty	10 years

Sungold Power 560W Bifacial PERC Panel Specifications

Specification	Details
Peak Power (Pmax)	560W
Production Tolerance	±3%
Maximum Power Current (Imp)	13.3A
Maximum Power Voltage (Vmp)	42.1V
Short Circuit Current (Isc)	14.09A
Open Circuit Voltage (Voc)	50.09V
Maximum System Voltage	1500V
Wind Resistance	2400Pa
Output Cables	12 AWG (1 ft per cable)
Number of Cells	144(6x 24),60 cells in series
Cell Type	PERC Monocrystalline (7.2x 3.6 in)
Certifications	CE TUV
Product Weight	67.9lbs
Product Dimension	89.844.71.4inch
Package Weight (32 pcs)	2440.0lbs（32PCS）
Package Dimension (32 pcs)	92.948.061.8inch（32PCS）
Performance	5 year 95% output warranty 10 year 90% output warranty 25 year80% output warranty
Material and workmanship warranty	12 year material and workmanship warranty

Sungold Power 500W MONO BLACK PERC Panel Specifications

Specification	Details
Peak Power (Pmax)	500W
Production Tolerance	±3%
Maximum Power Current (Imp)	13.30A
Maximum Power Voltage (Vmp)	37.60V
Short Circuit Current (Isc)	14.09A
Open Circuit Voltage (Voc)	44.36V
Maximum System Voltage	1500V
Wind Resistance	2400Pa
Output Cables	12 AWG (1 ft per cable)e)
Number of Cells	132(6*22)
Cell Type	PERC Mono 182×91 mm
Certifications	UL 61730, CE, TUV
Product Weight	56.2lbs
Product Dimension	82.4444.651.38inch
Package Weight (32 pcs)	2006.2lbs（32PCS）
Package Dimension (32 pcs)	85.048.052.0inch（32PCS）
Performance	5 year 95% output warranty 10 year 90% output warranty 25 year80% output warranty
Material and workmanship warranty	25 years Linear Product Workmanship Warranty and 10 years workmanship warranty.

Frequently-Asked Questions

How much energy storage does this kit provide?

Each Pytes V5 battery provides 5.12kWh of usable energy. Depending on the configuration selected, total storage can range from 20.48kWh (4 batteries) up to 61.44kWh (12 batteries).

Can this system power an entire home?

Yes. The 18kW continuous output and 36kW surge capacity allow the system to power most residential loads, including HVAC systems and large appliances.

Is this system suitable for off-grid use?

Yes. The Sol-Ark 18K inverter is designed for grid-tied, hybrid, or fully off-grid solar installations, making it ideal for energy independence systems.

Are the batteries expandable later?

Yes. Additional Pytes V5 batteries can be added to increase total storage capacity as energy needs grow.

User Manual

Shipping & Easy Returns

Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.

Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.

Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.

Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.

Why Buy From Us

Buying solar online should not mean guessing your way through the install. Here’s what you get with Off-Grid Source.

We size the system, not just sell it. Call before you order and a sales engineer will check the kit against your actual loads, tell you if you’re buying too much or too little, and list the site-specific parts your install will need.
A+ rated by the Better Business Bureau. Another trust signal that you’re buying from a real company that stands behind the sale.
Free shipping across the Lower 48. No hidden freight charges, residential fees, or liftgate surprises at checkout.
Guaranteed best prices. Find the same product for less elsewhere and we’ll match it.
30-day easy returns. If it is not the right fit, we’ll help you get it sent back.
A real person on the phone. Product questions, sizing, install planning, warranty help: call us at +1 (877) 556-3347.

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Our Customers Tell It Better Than We Do

Excellent 4.9/5

Trusted By 10,000+ Customers. See All Reviews.

They Stood By Me

I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

Bruce D.

Awesome Service!

I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.

Jennene A.

Real Person, Honest Service.

I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.

Ray B.

Easy Return

I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!

Roger V.

Totally Off Grid.

I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.

Jeff S.

Great Product! Fast Shipping

We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!

Jason

Excellent Customer Service

Very fast response times. Very professional. I highly recommend!

Ray W.

Sol-Ark Pytes Pro 18K Solar Kit

Product Highlights

Sol-Ark Pytes Pro 18K Solar Kit

Sol-Ark Pytes Pro 18K Solar Kit Features

Sol-Ark Pytes Pro 18K Solar Kit Applications

What's Included

Sol-Ark 18K-2P Hybrid Inverter Specifications

Input Data (PV)

Pytes V5 LiFePO4 Battery – 5.12kWh, 51.2V, 100Ah Lithium Iron Phosphate Battery Specifications

Sungold Power 560W Bifacial PERC Panel Specifications

Sungold Power 500W MONO BLACK PERC Panel Specifications

Frequently-Asked Questions

User Manual

Shipping & Easy Returns

Why Buy From Us

Why Choose Off Grid Source

Our Customers Tell It Better Than We Do

They Stood By Me

Awesome Service!

Real Person, Honest Service.

Easy Return

Totally Off Grid.

Great Product! Fast Shipping

Excellent Customer Service