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GoodWe SBP US Series G2 AC Couple Inverter w/ EZLink LAN - GW11K4-SBP-US20

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SKU PES-SPS-SIV-0698

GoodWe SBP US Series G2 AC Couple Inverter w/ EZLink LAN - GW11K4-SBP-US20

$4,102.03 USD

$ $4,102.03 USD

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In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

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What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. 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 order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 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 your financing and payment options?

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, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar 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 Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

GoodWe SBP-US (G2) — GW11K4-SBP-US20, 11.4 kW Split-phase AC-Coupled w/ EZLink LAN

GoodWe SBP US Series G2 AC Couple Inverter - GW11K4-SBP-US20 is a high-performance AC-coupled inverter designed to deliver reliable energy management for modern residential and light commercial solar systems. Built with advanced grid-support features and intelligent connectivity, this inverter offers seamless integration with existing solar installations while maximizing backup power efficiency and system stability. Its robust design, smart monitoring, and future-ready architecture make it an excellent choice for users looking to enhance energy independence and grid resilience.

Flagship G2 AC-coupled inverter for whole-home backup with built-in autotransformer, micro-grid operation, and generator compatibility. Comms: LAN (4G optional) + Bluetooth + Wi-Fi. :contentReference[oaicite:26]{index=26}

Technical Specifications — GW11K4-SBP-US20

Battery Input
Nominal / range / start	300 V / 80–495 V* / 80 V
Inputs / charge & discharge current	1 / 50 A & 50 A
Max charging / discharging power	11,400 W / 11,970 W
AC Output (On-grid)
Nominal W / VA to grid	11,400 W / 11,400 VA
Max VA to/from grid	11,400 VA / 11,400 VA
Voltage / frequency	240 V • 60 Hz (58.5–61.2 Hz) • 211–264 V range
Max AC current to/from grid	47.5 A / 47.5 A
AC Output (Back-up)
Back-up VA / Max with grid	11,400 VA / 17,280 VA @ 10 s
Max output current	47.5 A
Efficiency
Max / CEC / Battery→AC	97.0% / 96.0% / 97.0%
Protection • General • Certifications
Same series protections; 74.7 lb; NEMA 4X; noise < 40 dB; non-isolated; < 20 W night self-use*. UL1741 SB, IEEE 1547, etc.

EV Charger (Optional — series block)

Level / Power / Freq	AC Level 2 / 9,600 W / 60 Hz
Max continuous current	40 A (selectable; default 16 A)
App / Cable	Wi-Fi, Bluetooth / 7.6 m*
Degree / Standards	NEMA 4X / UL2594, UL2231-1/-2; NEC 625; SAE J1772

* Datasheet footnotes: microgrid battery voltage cap 450 V; EV cable ordered separately. :contentReference[oaicite:27]{index=27}

Advanced AC-Coupled Design for Flexible Solar Integration

The GoodWe SBP US Series G2 AC Couple Inverter - GW11K4-SBP-US20 is engineered with an AC-coupled architecture, allowing it to work efficiently with both new and existing PV systems. This flexibility makes it ideal for retrofit projects where homeowners want to add battery storage without replacing their current solar inverter. By enabling seamless AC coupling, the system ensures smooth energy flow between solar panels, batteries, and household loads.

This inverter supports intelligent energy distribution, prioritizing essential loads during grid outages. It automatically detects grid failures and transitions to backup mode with minimal interruption, providing continuous power when it matters most.

Smart Energy Management with High Efficiency

Energy efficiency is at the core of the GoodWe SBP US Series G2 AC Couple Inverter w/ EZLink 4G - GW11K4-SBP-US20. It delivers optimized power conversion with minimal energy loss, helping users make the most of their solar generation and stored energy. Advanced algorithms ensure precise load control, peak shaving, and improved self-consumption.

The inverter is designed to manage energy intelligently by balancing real-time consumption with stored power. This helps reduce dependency on the grid, lower electricity bills, and enhance overall system performance.

Built-In Backup Power Capability

One of the standout features of the GoodWe SBP US Series G2 AC Couple Inverter - GW11K4-SBP-US20 is its reliable backup power support. During grid outages, the inverter isolates the system safely and continues supplying power to critical loads. This feature is particularly valuable in regions prone to power disruptions, ensuring uninterrupted electricity for essential appliances.

The system’s fast switching capability ensures a smooth transition between grid-connected and off-grid operation. This reliability enhances user confidence and makes it a dependable solution for energy security.

Seamless Connectivity with EZLink 4G

The GoodWe SBP US Series G2 AC Couple Inverter w/ EZLink 4G - GW11K4-SBP-US20 comes equipped with EZLink 4G connectivity, enabling real-time monitoring and remote system management. This feature allows users and installers to track system performance, energy production, and consumption data from anywhere.

With stable communication and cloud-based monitoring, system diagnostics and performance optimization become easier and more efficient. This connectivity ensures proactive maintenance and long-term operational reliability.

Safety-Focused and Grid-Compliant Technology

Safety and compliance are critical aspects of modern energy systems, and the GoodWe SBP US Series G2 AC Couple Inverter - GW11K4-SBP-US20 meets stringent standards. It includes multiple built-in protection mechanisms such as over-voltage protection, anti-islanding protection, and thermal monitoring.

The inverter is designed to comply with current grid regulations, ensuring smooth approval and safe operation. Its durable enclosure and high-quality components make it suitable for long-term use in demanding environments.

Designed for Long-Term Performance

Durability and scalability are key advantages of the GoodWe SBP US Series G2 AC Couple Inverter - GW11K4-SBP-US20. The inverter is built to support future energy expansion, making it easy to scale storage capacity as energy needs grow. This future-ready design protects your investment while supporting evolving energy demands.

With its intelligent controls, efficient performance, and reliable backup capabilities, this inverter delivers a balanced solution for homeowners and businesses seeking dependable solar energy management.

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

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, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

GoodWe SBP-US (G2) — GW11K4-SBP-US20, 11.4 kW Split-phase AC-Coupled w/ EZLink LAN

Technical Specifications — GW11K4-SBP-US20

Battery Input
Nominal / range / start	300 V / 80–495 V* / 80 V
Inputs / charge & discharge current	1 / 50 A & 50 A
Max charging / discharging power	11,400 W / 11,970 W
AC Output (On-grid)
Nominal W / VA to grid	11,400 W / 11,400 VA
Max VA to/from grid	11,400 VA / 11,400 VA
Voltage / frequency	240 V • 60 Hz (58.5–61.2 Hz) • 211–264 V range
Max AC current to/from grid	47.5 A / 47.5 A
AC Output (Back-up)
Back-up VA / Max with grid	11,400 VA / 17,280 VA @ 10 s
Max output current	47.5 A
Efficiency
Max / CEC / Battery→AC	97.0% / 96.0% / 97.0%
Protection • General • Certifications
Same series protections; 74.7 lb; NEMA 4X; noise < 40 dB; non-isolated; < 20 W night self-use*. UL1741 SB, IEEE 1547, etc.

EV Charger (Optional — series block)

Level / Power / Freq	AC Level 2 / 9,600 W / 60 Hz
Max continuous current	40 A (selectable; default 16 A)
App / Cable	Wi-Fi, Bluetooth / 7.6 m*
Degree / Standards	NEMA 4X / UL2594, UL2231-1/-2; NEC 625; SAE J1772

* Datasheet footnotes: microgrid battery voltage cap 450 V; EV cable ordered separately. :contentReference[oaicite:27]{index=27}

Advanced AC-Coupled Design for Flexible Solar Integration

Smart Energy Management with High Efficiency

Built-In Backup Power Capability

Seamless Connectivity with EZLink 4G

Safety-Focused and Grid-Compliant Technology

Designed for Long-Term Performance

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Customer Success Stories

Troy P

EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

Jacob B

Easy Process, Genuine Support

Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

Patrick B

Off Grid Solar Purchase

I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.

Troy P

EG4 off-grid base kit, Happy with my purchase.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

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