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EG4

EG4 18kPV Hybrid Inverter | 12kW 120/240V All-In-One

SKU INV024
$4,898.00
$4,898.00
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Estimated shipping time

You can typically expect your items to arrive within 4–7 business days, depending on your location and product availability.

What is your Return Policy?

At Northgrid Supply, we want every customer to shop with confidence. If something doesn’t go as planned, we’ve made returns and refunds simple and fair. Here’s how it works:

1. Return Window

You can request a return within 30 days of receiving your order. Unfortunately, we’re unable to accept returns after that time frame.

2. Who Pays for Return Shipping?

  • If your item arrives damaged, defective, or incorrect, we’ll cover the return shipping cost.
  • If you’re returning an item because you changed your mind, you’ll be responsible for return shipping fees.

3. Damaged or Defective Items

Received something broken or not working properly? Contact us within 30 days. We’ll provide a prepaid return label and once the item is returned and inspected, we’ll issue either a full refund or a replacement—including any original shipping costs.

4. Changed Your Mind?

If you no longer want the item, you can return it within 30 days—as long as it's unused, in its original packaging, and in resellable condition. You’ll need to handle the return shipping, and once we receive and inspect it, we’ll refund the product cost (excluding shipping).

5. Refund Processing

Once we receive and approve your return, we’ll send a confirmation email and issue a refund to your original payment method within 7 business days. Please allow additional time for banks or credit card companies to process and reflect the refund.

If it’s been over 10 business days since your refund was approved and you still don’t see it, contact us at support@northgridsupply.com and we’ll look into it immediately.

6. Restocking Fees

In some cases, a restocking fee may apply depending on the item and return reason. If applicable, we’ll clearly communicate this during your return request process.

The EG4 18kPV All-in-One Hybrid Solar Inverter is a powerful energy solution designed for both on-grid and off-grid applications. With 12,000W continuous output power and up to 18,000W PV input, it manages power from solar, batteries, and the grid for whole-home backup and energy independence. Its all-in-one design combines inverter, charger, and charge controller functions, helping simplify installation while supporting reliable power management. There is a file you can reference named "EG4 and BigBattery Solar Energy Systems and Components_16".

Product Highlights

  • Massive Solar Input: 18,000W PV input for high-capacity solar energy production.

  • Whole-Home Output: 12,000W continuous output power for whole-home and backup power systems.

  • Standard Residential Voltage: 120V/240V split-phase output for residential and heavy-duty appliances.

  • Integrated Design: All-in-one hybrid design combines inverter, charger, and charge controller.

  • Optimization: 3 MPPT inputs to maximize solar production across multiple array orientations.

  • Seamless Transition: UPS functionality with 15–30ms switching for seamless backup during outages.

  • Intelligent Interaction: Smart energy management supports peak shaving, load control, and grid interaction.

  • High Efficiency: Transformer-free design for improved efficiency and reduced weight.

  • Outdoor Durability: IP65 / NEMA 4X protection rating for durable system protection.

  • System Connectivity: Remote monitoring and control through RS485, CANBus, and Wi-Fi communication.

  • Long-Term Security: 10-year EG4 manufacturer warranty with lifetime USA-based tech support.

Key Features

  • High-Capacity Hybrid Power: Delivers 12,000W continuous output power with up to 18,000W PV input, making it a strong option for large residential systems.

  • On-Grid and Off-Grid Flexibility: Supports grid-tied, hybrid, and off-grid installations, allowing it to work in different solar setups.

  • All-in-One System Design: Combines the inverter, charger, and charge controller into one unit, helping reduce the need for additional components.

  • Advanced Solar Optimization: Features 3 MPPT inputs with multiple configurations to help maximize production across different orientations.

  • 48V Battery Compatibility: Works with 48V battery systems and supports closed-loop communication with BigBattery ETHOS and EG4 batteries.

  • Fast Backup Power Transfer: Provides UPS functionality with 15–30ms switching to keep power running smoothly during outages.

  • Smart Energy Management: Supports peak shaving, load control, AC coupling, and grid interaction to improve system flexibility.

  • Built-In Safety and Protection: Includes built-in breakers and safety features to help simplify installation and improve protection.

  • Durable Outdoor-Ready Rating: Built with an IP65 / NEMA 4X protection rating, making it suitable for durable installation environments.

  • Scalable System Expansion: Supports up to 10 parallel connections, giving users flexibility for larger configurations.

  • Remote Monitoring Support: Includes RS485, CANBus, and Wi-Fi communication for convenient system monitoring and control.

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    Total price$13,207.97