7.2kW Solar Power System - 1 x Sol-Ark 12K + [20.4-23.5kWh Lithium Bat - ShopSolar.com
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7.2kW Solar Power System - 1 x Sol-Ark 12K + [20.4-23.5kWh Lithium Battery Bank] + 18 x 400W Solar Panels | Complete Solar Power System [WHK-PRO]

by WHK
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The WHK-PRO complete hybrid solar kit was specifically designed to give you the grid independence and freedom that comes when you take power generation and storage into your own hands.

Whether you are needing power on a remote property, need to backup your home from emergency power outages, or simply want to try and save some money by reducing or eliminating your monthly electric bill - The WHK-PRO solar kit has everything you need to get up and running with off-grid solar power.


What's Included:

  • Ships from USA!

  • 18 x 400W Monocrystalline Solar Panels - 25 Years Linear Performance Warranty

  • 1 x Sol-Ark 12K 120/240/208V 48V Hybrid All-In-One Stackable Inverter/Charger/Controller - 10-Year Standard Warranty!

  • 1 x 23.5kWh, 48V, Mammoth PRO Lithium Battery - LiFePO4 - Designed & Assembled in USA - 10-Year Warranty

  • 1 x AC Battery Charger 48V for charging battery from grid or generator

  • 1 x 1/0AWG SB175 Anderson Cable, approx. 3ft, Assembly

  • 2 x 8AWG Solar Extension Cables PV, approx. 100ft, SET

  • 2 x 8AWG Solar Extension Cables PV, approx. 10ft, SET

  • 1 x 4/0AWG Inverter Cable, approx. 3ft, SET

  • 1 x 10 string disconnecting lithium battery combiner, rated to 1/0 input, 5/16 stud output (MNLBC-250)

  • DC Disconnect Switch/es

  • Custom Wiring Schematic / Diagram & Commissioning Guide

  • Guaranteed Lifetime Customer Support

Product Specifications:

Sol-Ark-12K Inverter Specs
Weight 74lbs
Accessory Type Inverter Charger
Battery Voltage 48V
Inverter Power Rating 9KW Continuous 120V/208V/240V
Power (Watts) 12000
Usable Battery Energy 20kWh
Manufacturer Sol-Ark
Class Battery based Inverter/charger
Solar Input 13kw
Standard Warranty 10 years
WHK - PRO Kit Specs
Max Continuous Output 7,500W
Max Solar Input 12,000 watts
Total Wattage of Panels 7,200W
Total KWH of Batteries 19kWh
Wattage Per Panel 400W
# of Panels 18
System Voltage 48V
Battery Chemistry Lithium (LFP)
# of Batteries 1
Battery Weight 600 lbs
Mammoth PRO 23.5kWh Lithium Battery
Chemistry LiFePO4
Configuration 16S
Voltage 48V
Ah Capacity 460Ah
kWh Capacity 23.5kWh
Wh Capacity 23,500Wh
Max Continuous Discharge Current 120A
Max Continuous Power 7000W
Max Discharge Peak Current 350A (Over 6 seconds)
Warranty 10 years
400 Watt Solar Panel Specs
Cell Type Monocrystalline
Optimum Operating Voltage (Vmp) 31~35V
Optimum Operating Current (Imp) 11~14A
Open Circuit Voltage (Voc) 37~42V
Short Circuit Current (Isc) 12~14
Module Efficiency 20.5~20.8
Dimensions 1094~1134 x 1722~1754
Warranty 25years Linear Performance Warranty

Our kits include solar-specific equipment to get you started, but keep in mind that you'll need to purchase additional items like installation tools, grounding rods/wire, and any AC components you might need. We highly recommend bringing in a certified solar installer or master electrician to help with the installation process to ensure a safe and reliable system that meets all relevant codes and standards. Solar Panel Disclaimer: If you purchase a solar kit without solar panels, you will be responsible for ensuring the compatibility and configuration of your solar panel array. Our solar kits include professionally designed solar panel arrays that work within the parameters of each inverter. There are minimum and maximum input voltages with each inverter that you will need to be aware of so that you do not damage your inverter and/or void your warranty. ShopSolarKits.com is not responsible for any damages or issues that occur when you do not purchase the solar panels with your kit.

What Type of Solar Panels Are Included?

We only include Tier-1 / Grade A solar panels in our solar kits. They are always monocrystalline and come with at least a 25-year power output warranty. We only source and supply solar panels from reputable brands that have been in business for many years. For more information on your solar panels, click to watch our video.

What Kind of Batteries Are Included?

We almost only include lithium iron phosphate batteries in our solar kits. This is because they are the longest lasting and safest battery option available today. We only source and supply batteries from reputable brands that ideally have US based operations and support teams. We stand behind the batteries we sell and because of that, your lithium batteries will always be covered by a long-term, comprehensive warranty. For more information on your battery bank, click to watch our video.

Does This Kit Come With Setup Instructions?

In addition to guaranteed lifetime customer support, we also provide you with a custom wiring diagram and commissioning guide for setting up your solar kit. Whether you are planning to hire a professional or install it yourself, this information will set you up for success when it comes to getting your solar power system up and running properly. In addition, you’ll also unlock lifetime access to The Solar Hub, where you’ll find instructional videos, articles, troubleshooting guides and tips, so that you can level up your solar knowledge and get the most out of this kit.

What is the Shop Solar Kits returns policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer must pay for the return shipping costs. See our complete return policy on our Shipping, Deliver, and Returns page.

What’s covered by the Shop Solar Kits returns policy?

Our returns policy covers all purchases made through Shop Solar Kits. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my Shop Solar Kits order?

All orders are processed within 72 hours and you can expect delivery within 5 to 10 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are the financing and payment options at Shop Solar Kits?

We offer several ways to pay to make getting your solar kit simple:

  • Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer
  • You can arrange financing during the checkout process, see our Financing page for more details

How does the Shop Solar Kits Lifetime Support work?

Our legendary lifetime customer support has helped make us the #1 solar kit retailer. 

We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.

If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Shop Solar Kits equipment, we’ve got you covered: we’re always only a phone call or email away.

Unlock Savings, Tax Benefits, and Impressive ROI!

Maximize your return on investment with a solar kit from Shop Solar Kits. Slash or eliminate electricity costs, leverage the 30% tax credit, and make a strategic move that yields both financial and practical rewards. It's not just a solar kit—it's a smart investment with compelling returns!.

Solar ROI Calculator

30% Federal Tax Credit
Estimated Annual Electricity Savings
Cost After Incentives & Savings
Estimated Home Value Increase

These are estimates based on the national averages.

Please use these as strictly estimates and not exact amounts.

Simplified Solar Solutions

Simplified Solar Solutions

Our carefully curated solar kits combine the best components to create an ideal solution for your individual power needs. So whether you need to get off the grid, to save on your electric bill, for emergency backup power, or to fuel your next adventure - we eliminate the need for a designer or custom solution, and pass those savings on to you without compromising on performance.

Best Components, Lowest Prices

Best Components, Lowest Prices

We cut out the bloat of traditional solar companies and pass those savings off to you. Plus, we provide free shipping on all solar kits and lifetime customer service on everything we sell.

Expert Guidance

Expert Guidance

Our team of solar professionals is here to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.

We’re people just like you

We’re people just like you

We’re not corporate and neither are our customers. We’re just a group of 50+ solar enthusiasts who are passionate about providing an honest, no-BS way for anyone, anywhere to improve their lives and the world around them with solar power.

Trusted Solar Authority

Trusted Solar Authority

With over 30,000 solar kits sold, 2,500+ positive reviews, and years of experience in the industry, we’re proud to say we’re America’s #1 solar kit retailer. So you can trust us to provide you with top-notch products and legendary customer service at every step of the way.