Free shipping on orders over $75

(254)-294-6762
Call

Your cart

Your cart is empty

Description

18KW OFF-GRID SOLAR KIT – SGR-18K20E

Maximum Power Off-Grid System with Lithium Storage & 415W Solar Panels

Overview

The SGR-18K20E 18kW Off-Grid Solar Kit is a premium, high-output solar solution engineered for large-scale off-grid systems and heavy power demand. Designed with a robust 48V platform, it provides stable 120V/240V output for whole-home or commercial-level energy needs.

Equipped with 20 high-efficiency 415W solar panels, dual MPPT controllers, and advanced LiFePO4 battery storage, this system delivers maximum energy production, storage capacity, and long-term reliability.

Key Features

Maximum 18kW output system built for whole-home and commercial off-grid power.
  • • 18kW Inverter Output – High-capacity 48V system with 120V/240V output
  • • 20 × 415W Solar Panels – Maximum solar input for high production
  • • LiFePO4 Battery Storage – Reliable, long-life lithium energy storage
  • • Dual 100A MPPT Controllers – Efficient solar charging performance
  • • Complete System Kit – Includes all required components and hardware
  • • Expansion Ready – Designed for future scaling and upgrades

What’s Included

  • • 1 × 18,000W 48V inverter (120V/240V output)
    • 20 × 415W monocrystalline solar panels
    • 2 × 100A MPPT solar charge controllers
    • 6 × 100Ah 51.2V LiFePO4 lithium batteries
    • 1 × enclosed battery cabinet
    • 2 sets × 50 ft solar extension cables (PV input)
    • Battery to MPPT connection cables
    • 20 sets mounting Z-brackets
    • 1 × 400A DC breaker
    • 2 × 50A PV breakers

Applications

  • • Whole-home off-grid systems
  • • Commercial and industrial applications
  • • Large farms and operations
  • • Backup power for critical loads
  • • Remote or large-scale installations

SGR-18K20E | 18kW Off-Grid Solar Kit | 48V Lithium Battery System | 415W Panels | Complete Solar Power Kit | Maximum Output Off-Grid Solution

Your payment details are safe and secure. We accept the following:

American Express
Diners Club
Discover
Google Pay
JCB
Mastercard
Visa
Sale

Off-grid Solar Kit 18000W with 48Vdc Battery 120/240W Split-Phase - SGR-18K20E

by RC City
SKU: 7613556523102
Regular price $20,900.00 $15,600.00 25% off
Unit price
per
Delivery 2- 5 Days
Expert Support
Secure Checkout
(0 in cart)
Shipping calculated at checkout.
Ask our experts

Our solar specialists are here to help. Whether you’re exploring options or need guidance on your project, feel free to reach out anytime.

Fast Shipping: 3-5 Business Days

30 Day Returns & Exchanges as per Policy

Need help? Contact us

Description

18KW OFF-GRID SOLAR KIT – SGR-18K20E

Maximum Power Off-Grid System with Lithium Storage & 415W Solar Panels

Overview

The SGR-18K20E 18kW Off-Grid Solar Kit is a premium, high-output solar solution engineered for large-scale off-grid systems and heavy power demand. Designed with a robust 48V platform, it provides stable 120V/240V output for whole-home or commercial-level energy needs.

Equipped with 20 high-efficiency 415W solar panels, dual MPPT controllers, and advanced LiFePO4 battery storage, this system delivers maximum energy production, storage capacity, and long-term reliability.

Key Features

Maximum 18kW output system built for whole-home and commercial off-grid power.
  • • 18kW Inverter Output – High-capacity 48V system with 120V/240V output
  • • 20 × 415W Solar Panels – Maximum solar input for high production
  • • LiFePO4 Battery Storage – Reliable, long-life lithium energy storage
  • • Dual 100A MPPT Controllers – Efficient solar charging performance
  • • Complete System Kit – Includes all required components and hardware
  • • Expansion Ready – Designed for future scaling and upgrades

What’s Included

  • • 1 × 18,000W 48V inverter (120V/240V output)
    • 20 × 415W monocrystalline solar panels
    • 2 × 100A MPPT solar charge controllers
    • 6 × 100Ah 51.2V LiFePO4 lithium batteries
    • 1 × enclosed battery cabinet
    • 2 sets × 50 ft solar extension cables (PV input)
    • Battery to MPPT connection cables
    • 20 sets mounting Z-brackets
    • 1 × 400A DC breaker
    • 2 × 50A PV breakers

Applications

  • • Whole-home off-grid systems
  • • Commercial and industrial applications
  • • Large farms and operations
  • • Backup power for critical loads
  • • Remote or large-scale installations

SGR-18K20E | 18kW Off-Grid Solar Kit | 48V Lithium Battery System | 415W Panels | Complete Solar Power Kit | Maximum Output Off-Grid Solution

Your payment details are safe and secure. We accept the following:

American Express
Diners Club
Discover
Google Pay
JCB
Mastercard
Visa

Frequently asked questions

Find answers to common questions about our products and services

Small orders ship via UPS or USPS (2-3 business days). Panels, batteries, and large items ship via LTL freight (3-5 business days)

We accept returns in accordance with our Return & Refund Policy. Please review the full details here:

Return & Refund Policy
Cancellation Policy

Yes, we ship to most countries worldwide. International shipping times vary by destination, typically 7-14 business days.

You will receive a tracking number via email once your order ships. Track it via the carrier’s website.

We accept all major credit/debit cards, PayPal, ACH/wire transfers and secure checkout options.

Yes. Net 30 is available for approved customers on second and subsequent orders only. Not available on first orders.

RC CITY HOME ENERGY

Description

18KW OFF-GRID SOLAR KIT – SGR-18K20E

Maximum Power Off-Grid System with Lithium Storage & 415W Solar Panels

Overview

The SGR-18K20E 18kW Off-Grid Solar Kit is a premium, high-output solar solution engineered for large-scale off-grid systems and heavy power demand. Designed with a robust 48V platform, it provides stable 120V/240V output for whole-home or commercial-level energy needs.

Equipped with 20 high-efficiency 415W solar panels, dual MPPT controllers, and advanced LiFePO4 battery storage, this system delivers maximum energy production, storage capacity, and long-term reliability.

Key Features

Maximum 18kW output system built for whole-home and commercial off-grid power.
  • • 18kW Inverter Output – High-capacity 48V system with 120V/240V output
  • • 20 × 415W Solar Panels – Maximum solar input for high production
  • • LiFePO4 Battery Storage – Reliable, long-life lithium energy storage
  • • Dual 100A MPPT Controllers – Efficient solar charging performance
  • • Complete System Kit – Includes all required components and hardware
  • • Expansion Ready – Designed for future scaling and upgrades

What’s Included

  • • 1 × 18,000W 48V inverter (120V/240V output)
    • 20 × 415W monocrystalline solar panels
    • 2 × 100A MPPT solar charge controllers
    • 6 × 100Ah 51.2V LiFePO4 lithium batteries
    • 1 × enclosed battery cabinet
    • 2 sets × 50 ft solar extension cables (PV input)
    • Battery to MPPT connection cables
    • 20 sets mounting Z-brackets
    • 1 × 400A DC breaker
    • 2 × 50A PV breakers

Applications

  • • Whole-home off-grid systems
  • • Commercial and industrial applications
  • • Large farms and operations
  • • Backup power for critical loads
  • • Remote or large-scale installations

SGR-18K20E | 18kW Off-Grid Solar Kit | 48V Lithium Battery System | 415W Panels | Complete Solar Power Kit | Maximum Output Off-Grid Solution