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FoxESS 11.4kw Inverter+20kWh Batteries+Hub - FoxESS 11.4kw Inverter+20kWh Batteries+Hub

FoxESS Energy Storage System - 11.4kW | Portlandia Electric Supply

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FoxESS 11.4kw Inverter+20kWh Batteries+Hub - FoxESS 11.4kw Inverter+20kWh Batteries+Hub

$14,186.78 USD

$ $14,186.78 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.

FoxESS 11.4 kW Inverter + 20 kWh Batteries + Hub — US split-phase hybrid ESS kit

The FoxESS 11.4kw Inverter+20kWh Batteries+Hub is a complete, future-ready energy storage system designed for homeowners and small businesses who want unmatched efficiency, resilience, and long-term savings. This advanced setup combines high-output solar conversion, premium lithium-iron-phosphate battery storage, and a smart management hub into one powerful bundle. From day-one energy independence to long-term ROI, this system is engineered to deliver reliable electricity, strong backup power, and intelligent control over your entire solar ecosystem.

Is bundle me H1-11.4-US hybrid inverter, ECS4000-H5 high-voltage LFP battery stack (~19.87 kWh), aur FoxESS Hub G2 smart energy gateway shamil hai — 120/240 V split-phase homes ke liye fast, code-friendly whole-home backup aur self-consumption solution. ^{[FoxESS datasheets]}

What’s included

H1-11.4-US hybrid inverter (split-phase 120/240 V, 3 MPPT, Type 4X/IP66)
ECS4000-H5 battery stack = 1×CM4000 master + 4×CS4000 sub modules (~19.87 kWh, 288 V nominal)
FOX Hub G2 smart energy management gateway (200 A / 48 kW, <20 ms transfer)

Key features

High PV headroom: 3 MPPT, PV input up to 22.8 kW (80–550 V MPPT window)
HV LFP storage: modular stack to ~19.87 kWh (ECS4000-H5), ≥6000 cycles, >95% RTE
Whole-home control: Hub G2 200 A gateway, 3 smart circuits (80 A each), generator-ready, <20 ms switchover
UL compliance: Inverter UL1741/IEEE 1547; Battery UL9540/UL9540A; Hub listed for US residential

Specifications

**FoxESS 11.4 kW + 20 kWh + Hub** — specification box
Inverter — H1-11.4-US
AC output	11.4 kW @ 120/240 V split-phase · rated current ~47.5 A
PV input	3 MPPT · max PV 22.8 kW · 600 V max · MPPT 80–550 V (full-load 305–500 V)
Battery bus	HV 85–460 V · 50 A charge/discharge (cont.)
Backup capacity	max apparent 17.1 kVA (peaks per datasheet)
Enclosure / dims / weight	Type 4X/IP66 · ≈18.2″ × 25.9″ × 9.2″ · ≈83.8 lb
Battery — ECS4000-H5 stack (~19.87 kWh)
Make-up	1×CM4000 (master) + 4×CS4000 (sub) modules
Usable energy (nominal)	≈19.87 kWh · nominal 288 V (range 243–328.5 V)
Per-module specs	CM4000 ≈3.97 kWh, ≈39 kg; CS4000 ≈3.97 kWh, ≈35 kg
Current limits	50 A charge/discharge (cont.), 65 A (60 s peak)
Ingress / cycles	IP65 · ≥6000 cycles @ 90% DoD (typ.)
Gateway — FOX Hub G2
Service rating	200 A service · rated power 48 kW · 120/240 V
Smart circuits	3 managed circuits: 1×240 V + 2×120 V (each up to 80 A)
Transfer time	<20 ms on/off-grid transition · generator-ready (2-wire start)
Enclosure / dims / weight	Type 3R · ≈26.2″ × 17.4″ × 6.2″ · ≈37.4 lb
System notes
Comms & monitoring	Wi-Fi/LAN, CAN/RS485, SunSpec; FoxCloud US app/web
Certifications	UL1741/IEEE 1547 (inverter) · UL9540/UL9540A (battery) · FCC Part 15 (system components)

All ratings per FoxESS US datasheets; 20 kWh class ≈ ECS4000-H5 (19.87 kWh) stack. Hub G2 enables whole-home switching & smart loads with generator integration. Always follow the latest manuals for wiring/clearances. ^{[FoxESS PDFs]}

Why Choose the FoxESS 11.4kw Inverter+20kWh Batteries+Hub?

Investing in this package gives you access to a robust and scalable renewable energy solution. The inverter is built to convert solar energy with remarkable precision, ensuring maximum usable power every day. Paired with 20kWh of high-performance batteries, it stores enough energy to sustain essential loads during power outages or run your property efficiently through the night.

The hub acts as the central brain, enabling seamless communication between components. This ensures that you get real-time monitoring, automated power optimization, and remote management from anywhere. Whether you're cutting energy bills or strengthening backup readiness, this all-in-one system is engineered to exceed expectations.

Key Features of the FoxESS 11.4kw Inverter+20kWh Batteries+Hub

When selecting a premium solar storage system, features matter. This integrated solution gives you a range of advanced capabilities that elevate your entire energy setup.

1. High-Efficiency 11.4kW Inverter

The inverter is the heart of your solar system, responsible for converting solar DC power into safe, stable AC electricity. With top-tier energy conversion efficiency, it minimizes losses and ensures consistent performance even during high-load periods.

2. Long-Lasting 20kWh Battery Storage

With 20kWh of storage, you can power essential appliances during blackouts, reduce reliance on grid electricity, and take advantage of smart load shifting. The lithium-iron-phosphate technology provides improved thermal stability, longer cycle life, and safe, dependable output.

3. Smart Hub for Total Control

The integrated hub gives you the ability to manage your system through intuitive controls. Monitor real-time usage, view solar production, schedule charging, and optimize backup priorities—all from an easy-to-use platform.

4. Scalable and Flexible Configuration

Future expansion is simple. Whether you decide to add more panels or increase battery capacity, the system is designed for seamless scalability without requiring heavy infrastructure changes.

Benefits of Installing the FoxESS 11.4kw Inverter+20kWh Batteries+Hub

This system provides multiple long-term benefits that make it a standout choice for energy-conscious property owners.

1. Lower Energy Bills

By maximizing solar utilization and storing unused energy, you reduce grid dependence. This results in lower monthly electricity costs and faster returns on investment.

2. Complete Backup Power Security

20kWh of energy can support lights, fans, refrigerators, networking devices, and other essentials for hours during outages. With the right load management, this system ensures a smooth, uninterrupted power supply.

3. Enhanced Energy Independence

Gain more control over your household energy usage. The smart hub ensures intelligent distribution, prioritizing solar energy for critical loads and minimizing grid consumption.

4. Environmentally Responsible Choice

This setup reduces carbon footprint significantly. By using clean solar energy and advanced storage, you take meaningful steps toward sustainable living.

Who Should Choose the FoxESS 11.4kw Inverter+20kWh Batteries+Hub?

This premium bundle is ideal for:

Homeowners seeking strong backup power
Commercial properties wanting to stabilize energy costs
Locations experiencing frequent power outages
Solar users planning long-term energy independence
Anyone upgrading an existing system with better storage and smarter control

If your goal is long-term savings, stable power, and future scalability, this is one of the most reliable and efficient energy solutions available.

Installation, Maintenance, and Lifespan

Professional installation ensures optimal placement, wiring, and system configuration. Once installed, maintenance is minimal. The inverter requires periodic inspections, while the batteries are built for long cycle life with very low upkeep. With proper care, the system delivers stable performance for many years, making it a strong long-term investment.

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?

FoxESS 11.4 kW Inverter + 20 kWh Batteries + Hub — US split-phase hybrid ESS kit

What’s included

H1-11.4-US hybrid inverter (split-phase 120/240 V, 3 MPPT, Type 4X/IP66)
ECS4000-H5 battery stack = 1×CM4000 master + 4×CS4000 sub modules (~19.87 kWh, 288 V nominal)
FOX Hub G2 smart energy management gateway (200 A / 48 kW, <20 ms transfer)

Key features

High PV headroom: 3 MPPT, PV input up to 22.8 kW (80–550 V MPPT window)
HV LFP storage: modular stack to ~19.87 kWh (ECS4000-H5), ≥6000 cycles, >95% RTE
Whole-home control: Hub G2 200 A gateway, 3 smart circuits (80 A each), generator-ready, <20 ms switchover
UL compliance: Inverter UL1741/IEEE 1547; Battery UL9540/UL9540A; Hub listed for US residential

Specifications

**FoxESS 11.4 kW + 20 kWh + Hub** — specification box
Inverter — H1-11.4-US
AC output	11.4 kW @ 120/240 V split-phase · rated current ~47.5 A
PV input	3 MPPT · max PV 22.8 kW · 600 V max · MPPT 80–550 V (full-load 305–500 V)
Battery bus	HV 85–460 V · 50 A charge/discharge (cont.)
Backup capacity	max apparent 17.1 kVA (peaks per datasheet)
Enclosure / dims / weight	Type 4X/IP66 · ≈18.2″ × 25.9″ × 9.2″ · ≈83.8 lb
Battery — ECS4000-H5 stack (~19.87 kWh)
Make-up	1×CM4000 (master) + 4×CS4000 (sub) modules
Usable energy (nominal)	≈19.87 kWh · nominal 288 V (range 243–328.5 V)
Per-module specs	CM4000 ≈3.97 kWh, ≈39 kg; CS4000 ≈3.97 kWh, ≈35 kg
Current limits	50 A charge/discharge (cont.), 65 A (60 s peak)
Ingress / cycles	IP65 · ≥6000 cycles @ 90% DoD (typ.)
Gateway — FOX Hub G2
Service rating	200 A service · rated power 48 kW · 120/240 V
Smart circuits	3 managed circuits: 1×240 V + 2×120 V (each up to 80 A)
Transfer time	<20 ms on/off-grid transition · generator-ready (2-wire start)
Enclosure / dims / weight	Type 3R · ≈26.2″ × 17.4″ × 6.2″ · ≈37.4 lb
System notes
Comms & monitoring	Wi-Fi/LAN, CAN/RS485, SunSpec; FoxCloud US app/web
Certifications	UL1741/IEEE 1547 (inverter) · UL9540/UL9540A (battery) · FCC Part 15 (system components)

Why Choose the FoxESS 11.4kw Inverter+20kWh Batteries+Hub?

Key Features of the FoxESS 11.4kw Inverter+20kWh Batteries+Hub

When selecting a premium solar storage system, features matter. This integrated solution gives you a range of advanced capabilities that elevate your entire energy setup.

1. High-Efficiency 11.4kW Inverter

2. Long-Lasting 20kWh Battery Storage

3. Smart Hub for Total Control

4. Scalable and Flexible Configuration

Future expansion is simple. Whether you decide to add more panels or increase battery capacity, the system is designed for seamless scalability without requiring heavy infrastructure changes.

Benefits of Installing the FoxESS 11.4kw Inverter+20kWh Batteries+Hub

This system provides multiple long-term benefits that make it a standout choice for energy-conscious property owners.

1. Lower Energy Bills

By maximizing solar utilization and storing unused energy, you reduce grid dependence. This results in lower monthly electricity costs and faster returns on investment.

2. Complete Backup Power Security

3. Enhanced Energy Independence

Gain more control over your household energy usage. The smart hub ensures intelligent distribution, prioritizing solar energy for critical loads and minimizing grid consumption.

4. Environmentally Responsible Choice

This setup reduces carbon footprint significantly. By using clean solar energy and advanced storage, you take meaningful steps toward sustainable living.

Who Should Choose the FoxESS 11.4kw Inverter+20kWh Batteries+Hub?

This premium bundle is ideal for:

Homeowners seeking strong backup power
Commercial properties wanting to stabilize energy costs
Locations experiencing frequent power outages
Solar users planning long-term energy independence
Anyone upgrading an existing system with better storage and smarter control

If your goal is long-term savings, stable power, and future scalability, this is one of the most reliable and efficient energy solutions available.

Installation, Maintenance, and Lifespan

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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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