SunGoldPower | Off-Grid Solar Kits 18kW Options 120V/240V with 48v LiFePO4 Lithium Batteries & 20 x 415w Solar Panels SGR-18K20E
High-Performance Off-Grid Power Systems for Homes, Cabins, and Small Businesses
The SGR-18K20E Off-Grid Solar Kit is a comprehensive energy solution designed to meet the demands of residential and light commercial applications. With flexible system sizing options (12kW, 15kW, or 18kW inverters), this scalable kit delivers powerful split-phase (120V/240V) output—capable of handling everything from essential appliances to large energy loads. Equipped with high-efficiency 415W solar panels and long-lasting 48V LiFePO4 batteries, it’s built for performance, safety, and reliability.
Key Features:
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Multiple Inverter Options (18kW)
Choose your system size to match your power demands—each provides 120/240V split-phase output for residential or commercial needs. -
20.48KWh LiFePO4 Battery Bank
4 x 5.12KWh 48V lithium batteries deliver dependable energy storage with deep cycling capabilities. -
20 x 415W Monocrystalline Solar Panels
High-output panels generate up to 7.47kW of solar power during peak conditions. -
Estimated Daily Output: ~30KWh
With 4 hours of sunlight—ideal for homes consuming ~900KWh/month. -
Expandable Architecture
Easily scale the system with additional batteries and solar panels to meet future demand.
Perfect For:
- Full-time off-grid homes or cabins
- Small commercial and agricultural buildings
- Backup power systems for grid outages
- High-load energy users seeking independence
Benefits:
- Split-Phase Output – Powers 120V & 240V appliances simultaneously, including HVAC, well pumps, dryers, and more.
- Safe, Long-Life Batteries – LiFePO4 chemistry ensures high safety, long cycle life, and deep discharge capability.
- High Solar Yield – 30KWh daily production covers energy-hungry households.
- Expandable for Growth – Add more panels or batteries as your needs increase.
- Whisper-Quiet Operation – Clean, silent alternative to gas generators.
What's Included
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18000 Watt 48V DC 120V/240V AC Output
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20 X 415 Watt Monocrystalline Solar Panels
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2 X 100A Mppt Solar Charge Controller
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6 X 100AH 51.2V Lifepo4 Battery
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1 X Enclosed Battery Cabinet
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2 Sets X 50 Feet, Solar Extension Cables-Inverter PV input
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2 Sets Cable Between Battery and MPPT Controller
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20 Sets of Mounting Z-Brackets
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1 X 400A DC Breaker
- 2 X 50A PV Breaker
Specifications
Manuals and Downloads
- 18000W Solar Inverter
- LifePo4 5.12KWH Lithium Battery
- 415 Watts Solar Panels
- 100A MPPT Solar Controller
Warranty
- 18000W Solar Inverter - 3 Years Warranty
- LifePo4 5.12KWH Lithium Battery - 10 Years Warranty
- 415 Watts Solar Panels - 25 Years Warranty
- 100A MPPT Solar Controller - 3 Years Warranty
Are Solar Guys Pro Authorized Retailers?
Yes! We are proud to be one of the few online retailers who are authorized retailers for every single product we carry!
Being an authorized retailer means we carry the same warranty as the manufacturer, protecting your purchase!
When Will My Order Ship?
Most orders ship within 1–3 business days. You’ll get a tracking number as soon as it ships via email!
Do We Accept Returns?
Yes absolutely, we have a no-hassle, 30-day return policy on all items! To refer to the full policy, click HERE
Are Products Brand New?
Yes! By default, all products on Solar Guys Pro are 100% brand-new and in perfect condition.
If an item is used or refurbished, it will clearly indicate so in the title of the product as well as the discription.
For example, a used Battery will say:
XYZ Battery | 48V 100AH (REFURBISHED)
If you'd like to confirm, you can always send us a email at info@solarguyspro.com
Orders over $500 include a FREE (Normally $149.99) 80-Page DIY Solar eBook — added automatically at checkout.
Frequently Asked Questions
Get your 30% Tax Solar Credit!
Unlock substantial savings with the government's Solar Tax Credit, which offers a robust 30% deduction on the installation costs of solar systems. This attractive incentive is your ticket to leveraging solar energy's eco-friendly potential while enjoying the financial benefits.
At Solar Guys Pro, our commitment is to you. Please be reminded that our expertise does not extend to tax advice. Nonetheless, our dedicated staff is eager to guide you through the process and ensure you capitalize on this exceptional offer.
Contact us now to learn more!