Sol-Ark 18K Complete Hybrid Solar Kit | 16kW Solar | 20–40kWh Server Rack Batteries

Name: Sol-Ark 18K Complete Hybrid Solar Kit | 16kW Solar | 20–40kWh Server Rack Batteries
Brand: Sol-Ark
SKU: SARK-18K-16-30-PY-C
Price: 22141.77 USD
Availability: InStock

BY: Sol-Ark

SKU: SARK-18K-16-30-PY-C

| Availability: In stock

$24,399.00

$22,141.77

You Save: $2,257.23

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Product Highlights

Durable construction for demanding power-system installations
Built for home backup and off-grid power
40,000 Wh capacity for extended backup and off-grid runtime
16,000 W solar output for larger off-grid energy systems

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Sol-Ark 18K Complete Hybrid Solar Kit | 16kW Solar | 20–40kWh Server Rack Batteries

The Sol-Ark 18K Complete Hybrid Solar Kit is a top-tier, whole-home energy solution engineered for maximum power, flexibility, and long-term energy independence. Built around the industry-leading Sol-Ark 18K hybrid inverter, this system seamlessly integrates solar production, battery storage, and grid connectivity into one powerful platform.

With a massive 16kW solar array and flexible 20kWh–40kWh server rack battery options, this kit is ideal for high-consumption homes, off-grid applications, and users who demand reliable backup power. Whether you're eliminating electric bills, preparing for outages, or running large loads, this system delivers unmatched performance and scalability.

Sol-Ark 18K Complete Hybrid Solar Kit Features

Industry-Leading 18K Hybrid Inverter - Delivers 18,000W continuous output and supports up to 28,800W PV input, making it one of the most powerful residential hybrid inverters available.
Massive Solar Production (16kW Array) - Includes 32 × 500W Mono PERC panels, providing high-efficiency energy generation to power large homes and reduce grid reliance.
Flexible High-Capacity Battery Options - Supports multiple premium battery brands ranging from 20kWh to 40kWh, with both closed-loop and open-loop communication for optimized performance.
True Whole-Home Backup - Capable of running large loads like HVAC systems, well pumps, and multiple appliances simultaneously during outages.
Scalable & Future-Proof Design - Easily expand battery storage or solar capacity as your energy needs grow.
Pre-Configured Complete Kit - Includes all essential components—cables, breakers, racks, and accessories—ensuring compatibility and simplifying installation.

Sol-Ark 18K Complete Hybrid Solar Kit Applications

Whole-home backup for large residences - Designed to power entire homes, including high-demand appliances like central air conditioning, electric water heaters, and well pumps. This system ensures seamless, automatic backup during outages so your home stays fully operational without interruption.
Off-grid living & energy independence - Ideal for remote homes or those looking to disconnect from the grid entirely. With a large solar array and high-capacity battery storage, this system provides consistent, self-sustaining power day and night.
High energy consumption households - Perfect for homes with heavy electrical loads such as EV chargers, pools, workshops, or multiple HVAC systems. The high inverter output and large solar capacity handle demanding energy usage with ease.
Peak shaving & utility bill reduction - Reduce electricity costs by storing excess solar energy and using it during peak utility rate hours. This smart energy strategy helps lower monthly bills and maximize solar ROI.
Commercial & agricultural applications - Suitable for small businesses, farms, and outbuildings that require dependable power for equipment, tools, and daily operations. Helps reduce downtime and energy expenses.
Emergency & disaster preparedness - Provides reliable backup power during grid failures, storms, and emergencies. Keep critical systems like refrigeration, communications, and medical equipment running when it matters most.

What's Included

Everything you need is included with your product.

Inverter (Choose One):

1 x Sol-Ark 18K - 18000W Output - 28800W PV Input - 48V - 120/240V Split Phase - Hybrid

Battery Options (Choose One):

4 x Pytes V5 - 20.48kWh - Closed Loop
6 x Discover AES - 30kWh - Closed Loop
4 x LINIOTECH - 40kWh - Closed Loop
6 x EG4 LL-S - 30.72kWh - Open Loop
6 x RUiXU 51.2V - 30.72kWh - Open Loop

Solar Panel:

32 × SunGold Power 500W Mono Black PERC (16kW)

Accessories:

4 x 10AWG Solar Extension Cable - 50ft
2 x 4/0 AWG Battery Cable - 4ft - 5/16 Both Ends (Set Red & Black)
4 x 25A PV Breaker
5 x Replacement Inline Fuse Holder | Choose Amp: 10A, 15A, 20A, 30A

Accessory Based on Battery Choice:

1 x Pytes V-BOX-OC Outdoor Battery Cabinet (Comes with Pytes)
6 x Battery Cable Kit (Comes with Discover)
6 x AES Rackmount Quick Stack Rack (Comes with Discover)
1 x AES Rackmount Battery Module Combiner (Comes with Discover)
1 x Bussbar 600A 8P w/Cover (Comes with Liniotech)
1 x EG4 Pre-Assembled EG4 Enclosed Battery Rack | 6 Slot | Wheels Included | Bus Bar Covers | Welded (Grey)(Comes with EG4)
1 x 6 Slot Battery Cabinet | Wheels & Busbar Included | Pre-Assembled (Comes with RUiXU)

Sol-Ark 18K Complete Hybrid Solar Kit Specifications

Sol-Ark 18K - 18000W Output - 28800W PV Input - 48V - 120/240V Split Phase - Hybrid Specification

Input Data (PV)

Specification	Details
Max. Supported PV Power	32,400W
Max. Usable PV Power	28,800W
Max. AC Coupled Input	19,200W
Rated MPPT Operating Voltage Range	150 - 425V
Startup Voltage	125V
Max. DC Input Voltage	500V
Max. Operating Input Current per MPPT	36A
Max. Short Circuit Current per MPPT	54A
No. of MPPT/Inputs	3/2

Output Data (AC)

Specification	Details
Continuous Power	18,000W
Surge Power (10s)	36,000W
Grid Voltage/ Frequency	120/240; 208 0.88Un＜U＜1.1Un / 55-65
Max. Output Current	75A
Max. Grid Passthrough Current	200A
Max Efficiency	97.6%
Stackable	Yes; Max 12

Battery Input Data (DC)

Specification	Details
Nominal DC Voltage	48V
Operating Voltage Range	40 - 60V
Capacity	50 — 9900Ah
Continuous Battery Charge / Discharge Current	350A
BMS Communication	CANBus & RS485 MODBUS

General Data

Specification	Details
Dimensions (H x W x D)	863 x 464 x 282 mm
Weight	62.4 Kg / 137 lb.
Enclosure	IP65 / NEMA 3R
Ambient Temperature	-40~+60°C, > 45°C Derating
Operating Altitude	3000 m (9843 ft)
Noise	< 50 dB
Standard Warranty	10 Years

Protection and Certifications

Specification	Details
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
PV DC Disconnect Switch	Integrated
Ground Fault Detection — NEC 690.5	Integrated
AC Output Breaker - 200A	Integrated
Surge Protection	DC Type II / AC Type II

Pytes V5 - 20.48kWh - Closed Loop Specifications

Specification	Details
Nominal Voltage	51.2V
Voltage Range	47.5V–57.6V
Nominal Capacity	100Ah
Nominal Energy	5.12kWh
Recommended Charge/Discharge Current	75A (3.84kW DC)
Max Charge/Discharge Current	100A (5.12kW DC)
Peak Charge/Discharge Current	101A–120A (3min) \| 121A–180A (15sec)

General

Specification	Details
Chemistry	LFP
Communication Protocol	CAN/RS485
Dimensions	17.4 x 20.87 x 5.51 in (3.2U) \| 424 x 530 x 140 mm (3.2U)
Weight	97 lbs / 44 kg
Operating Temperature	Charge: 32°F–113°F / 0°C–45°C \| Discharge: -4°F–122°F / -10°C–50°C
Round-Trip Efficiency	> 95%
Cycle Life	≥ 6000 cycles
Altitude	< 13,123.35 ft / 4000 m
Warranty	10 years
Scalability	16 pcs (81.92 kWh) in a group \| 6 groups (491.52 kWh) in a system w/ a Hub

Discover AES - 30kWh - Closed Loop Specifications

Electrical Specifications

Specification	Details
Open Circuit Voltage (V)	51.2
Charge Voltage (Bulk Vdc)	55.2
Max Absorption Voltage (U1 Vdc)	55.2
Float Voltage (U2 Vdc)	53.6
Suggested Low Voltage Cutoff (Vdc)	48
Max Continuous Charge Current - 1 Hour	95 A
Max. Continuous Charge Current (I Max. Adc)	70 A
Min. Finishing Charge Current (I Min. Adc)	2.5 A
Max Continuous Discharge Current - 1 Hour	95 A
Max Continuous Discharge Current (Adc)	70 A
Max Continuous Discharge Rate (kW)	5.12
Max Peak Current (Adc)	218 A RMS
Self-Discharge (25°C / 77°F)	< 3% per month
Charge Temperature	Min: 4°C (39.2°F) \| Max: 52°C (125.6°F)
Discharge Temperature	Min: -17°C (1.4°F) \| Max: 52°C (125.6°F)
Storage Temperature	Min: -20°C (-4°F) \| Max: 55°C (131°F)

Mechanical Specifications

Specification	Details
Industry Reference	19 Inch Rackmount 3U
Length A (in/mm)	19.6 \| 497.3
Width B (in/mm)	17.3 \| 439.2
Height C (in/mm)	5.3 \| 133.5
Total Height D (in/mm)	5.3 \| 133.5
Weight (lbs/kgs)	97 \| 44
Terminal *	Amphenol SurLok Plus
Cell(s)	16S1P
Case Material	Galvanized Steel Sheet
IP Rating	20
Electrolyte	LiFePO4

LINIOTECH - 40kWh - Closed Loop Specifications

Specifications	Details
Voltage	51.2V
Capacity	200Ah
Energy	10.24Kwh
Opertion Voltage	46-56Vdc
Max Charging Voltage	56Vdc
Max Charging Current	100A
Max Discharging Current	150A
Max Power	7680W
Dimension(L×W×H)	685435231mm
Weight	100.5kg

EG4 LL-S - 30.72kWh - Open Loop Specifications

Module Operating Parameters

Specifications	Details
Voltage	51.2V
Capacity	100AH
Charging Voltage (Bulk/Absorb)	56.8V \| 56.2V (+/-0.2V)
Float	54V (+/-0.2V)
Low DC Cutoff	44.8V \| 47-45.6V (start high, lower as needed)
Charging Current	100A (Max. continuous) \| 30-50A
Discharging Current	100A (Max. continuous) \| 90A

Environmental Parameters

Specifications	Details
Charging Range	32° ‒ 113°F (0°C to 45°C)
Discharging Range	-4°F ‒ 122°F (-20°C to 50°C)
Storage Range	-4°F ‒ 122°F (-20°C to 50°C)
Ingress Protection	IP20

Charging/ Discharging Parameters (Charge)

Specifications	Details
Cell Voltage Protection	3.8V \| 1 sec \| 3.45V
Module Voltage Protection	60.0V \| 1 sec \| 55.2V
Over Charging Current 1	>102A \| 20 sec
Over Charging Current 2	>120A \| 3 sec
Temperature Protection	<23°F or >158°F <-5°C or >70°C \| 1 sec \| >32°F or <140°F >0°C or 60°C

Charging/ Discharging Parameters (Discharge)

Specifications	Details
Cell Voltage Protection	2.3V \| 1 sec \| 3.1V
Module Voltage Protection	44.8V \| 1 sec \| 48V
Over-Charging Current 1	>102A \| 30 sec \| 60 sec
Over-Charging Current 2	>150A \| 3 sec \| 60 sec
Short Circuit	>300A \| <0.1 mS
Temperature Protection	<-4°F or >167°F <-20°C or >75°C \| 1 sec \| >14°F or <149°F >-10°C or <65°C
PCB Temp Protection	>221°F (>105°C) \| 1 sec \| @ <176°F (<80°C)

General Specifications

Specifications	Details
Cell Balance	120mA \| Passive Balance \| Cell Voltage Difference >40mV
Temperature Accuracy	3% \| Cycle Measurement \| Measuring Range: 40°F ‒ 212°F (-4°C ‒ 100°C)
Voltage Accuracy	0.5% \| Cycle Measurement \| For Cells/Module
Current Accuracy	3% \| Cycle Measurement \| Measurement Range: +/-200A
SOC	5% \| Integral Calculation
Power Consumption	Sleep & Off Mode \| <300uA \| Storage/Transport/ Standby
Power Consumption	Operating Mode \| <25mA \| Charging/Discharging
Communication Ports	RS485/CAN \| Customizable
Maximum Modules in Series	1
Maximum Modules in Parallel	64
Dimensions (H×W×D)	6.1in×19in×17.4in (15.5cm×48.2cm×44.2cm)
Weight	99.6 lbs. (45.2 kg)
Module	ETL Listed to UL Standard 9540A:2019
Cell	UL:1973

RUiXU 51.2V - 30.72kWh - Open Loop Specification

Specifications	Details
Nominal Voltage	51.2V
Nominal Capacity	100Ah (Minimum Capacity @ 0.2C: 100Ah)
Nominal Energy	5120Wh (5.12kWh)
Dimensions (W x D x H)	9" x 18.1" x 5.23" (3U)
Weight	103.6 lbs
Operating Temperature	14°F to 122°F
Storage Temperature	14°F to 113°F
Shipping Restriction	Shipped with battery only, shipping fee if purchased alone, contact us for pricing.

FAQs

Can this system power my entire home?

Yes. The Sol-Ark 18K is designed for full whole-home backup, including large loads and multiple circuits simultaneously.

What size battery should I choose?

20kWh works for essential backup, while 30–40kWh is better for extended outages or full-home usage.

Can I expand the system later?

Yes, both battery storage and solar capacity can be expanded as needed.

Is this system suitable for off-grid use?

Absolutely. It’s one of the best solutions for full off-grid living with high power demands.

Do I need professional installation?

Yes, professional installation is strongly recommended for safety, compliance, and optimal performance.

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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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.

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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.

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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.

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

Jason

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Sol-Ark 18K Complete Hybrid Solar Kit | 16kW Solar | 20–40kWh Server Rack Batteries

Product Highlights

Sol-Ark 18K Complete Hybrid Solar Kit | 16kW Solar | 20–40kWh Server Rack Batteries

Sol-Ark 18K Complete Hybrid Solar Kit Features

Sol-Ark 18K Complete Hybrid Solar Kit Applications

What's Included

Sol-Ark 18K Complete Hybrid Solar Kit Specifications

Sol-Ark 18K - 18000W Output - 28800W PV Input - 48V - 120/240V Split Phase - Hybrid Specification

Input Data (PV)

Output Data (AC)

Battery Input Data (DC)

General Data

Protection and Certifications

Pytes V5 - 20.48kWh - Closed Loop Specifications

Discover AES - 30kWh - Closed Loop Specifications

LINIOTECH - 40kWh - Closed Loop Specifications

EG4 LL-S - 30.72kWh - Open Loop Specifications

RUiXU 51.2V - 30.72kWh - Open Loop Specification

FAQs

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