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FoxESS 5.7-US + 12kWh Battery + Hub - FoxESS 5.7-US + 12kWh Battery + Hub

FoxESS 12kWh Energy Storage System - 12kW | Portlandia Electric Supply

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FoxESS 5.7-US + 12kWh Battery + Hub - FoxESS 5.7-US + 12kWh Battery + Hub

$8,092.50 USD

$ $8,092.50 USD

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In Stock

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9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

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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 5.7 kW inverter 12 kWh — US split-phase hybrid ESS kit

FoxESS 5.7-US + 12kWh Battery + Hub is a powerful, future-ready energy storage system designed to deliver reliability, efficiency, and smart energy management for modern residential and light commercial applications. Built with advanced lithium battery technology and a highly efficient hybrid inverter, this solution ensures seamless power availability, optimized solar usage, and long-term energy independence.

Whether you aim to reduce grid dependency, maximize self-consumption of solar power, or secure backup energy during outages, the FoxESS 5.7-US + 12kWh Battery + Hub offers a complete, scalable solution engineered for performance and safety.

FoxESS 5.7 kW inverter 12 kWh bundle me H1-5.7-US hybrid inverter, ECS4000-H3 (~11.92 kWh) HV LFP battery stack, aur Hub G2 smart gateway shamil hai—critical-loads backup, TOU shifting aur self-consumption projects ke liye compact, efficient package. ^{[FoxESS datasheets]}

Key features

FoxESS 5.7 kW inverter 12 kWh solution PV STC up to 11.4 kW, Type 4X/IP66 enclosure, HV battery bus (85–460 V, 50 A) aur Hub G2 ke smart-load control ke saath fast, code-friendly installs enable karta hai. ^{[H1/Hub datasheets]}

Inverter (H1-5.7-US): 5,700 W @ 120/240 V; Max PV 11.4 kW STC; MPPT 80–550 V; Type 4X/IP66
Battery (ECS4000-H3): ≈11.92 kWh · 172.8 V nominal (145.8–197.1 V) · 50 A cont. · IP65 · ≥6000 cycles
Gateway (Hub G2): 200 A service, <20 ms transfer, 3 smart circuits (1×240 V + 2×120 V @ 80 A), generator-ready

Specifications

**FoxESS 5.7 kW inverter 12 kWh** — specification box
Inverter — H1-5.7-US
PV input	Max PV 11.4 kW STC · 600 V max · MPPT 80–550 V
AC output	5,700 W rated · ~23.8 A @ 120/240 V split-phase
Battery bus	85–460 V HV · 50 A charge/discharge
Battery — ECS4000-H3
Energy / voltage	≈11.92 kWh · 172.8 V nominal (145.8–197.1 V)
Current & cycles	50 A cont. (65 A, 60 s) · ≥6000 cycles @ 90% DoD
Gateway — Hub G2
Service / rating	200 A · 48 kW · <20 ms transfer · 3 managed circuits

Compact backup ke liye, FoxESS 5.7 kW inverter 12 kWh kit PV headroom, reliable HV storage aur Hub-based smart-load management ka balanced combo deta hai. ^{[FoxESS PDFs]}

Why Choose FoxESS 5.7-US + 12kWh Battery + Hub?

The FoxESS 5.7-US + 12kWh Battery + Hub stands out due to its intelligent design and flexible integration capabilities. It combines a high-efficiency inverter with a robust battery system and centralized hub, enabling smooth energy flow between solar panels, batteries, and the grid.

This system is ideal for users seeking reliable backup power, advanced monitoring, and the ability to expand storage capacity as energy needs grow.

Key Features of FoxESS 5.7-US + 12kWh Battery + Hub

High-Efficiency Hybrid Inverter

The 5.7-US inverter delivers stable output and supports both on-grid and off-grid operation. It ensures optimal solar energy conversion while maintaining consistent performance across varying load demands.

Advanced 12kWh Lithium Battery

The 12kWh battery offers high energy density, long cycle life, and enhanced thermal stability. It is engineered for deep discharge and consistent performance, making it suitable for daily energy cycling and emergency backup.

Intelligent Energy Hub

The integrated hub acts as the control center, managing power distribution efficiently. It allows real-time monitoring, load prioritization, and seamless switching between energy sources.

Scalable & Modular Design

One of the major advantages of the FoxESS 5.7-US + 12kWh Battery + Hub is its expandability. Users can scale storage capacity over time without replacing the entire system, making it a cost-effective long-term investment.

Benefits of Using FoxESS 5.7-US + 12kWh Battery + Hub

Reliable Backup Power

During grid outages, the system automatically supplies power to essential loads, ensuring uninterrupted operation of critical appliances.

Optimized Solar Self-Consumption

By storing excess solar energy, the system reduces energy export losses and allows you to use stored power during peak tariff hours.

Smart Monitoring & Control

Advanced monitoring capabilities provide insights into energy generation, consumption, and storage, enabling users to make informed energy decisions.

Enhanced Safety & Durability

The FoxESS 5.7-US + 12kWh Battery + Hub is built with multiple safety layers, including battery management systems, thermal protection, and surge protection, ensuring long-term operational safety.

Installation & Compatibility

The system is designed for straightforward installation and integrates smoothly with existing solar PV setups. It supports multiple operating modes, including self-use, backup, and time-of-use optimization. The compact design allows flexible placement, making it suitable for various residential and commercial environments.

Ideal Applications

Residential solar energy storage
Backup power for homes and small businesses
Peak load shifting and energy cost optimization
Smart energy management systems

The FoxESS 5.7-US + 12kWh Battery + Hub adapts to different energy demands while maintaining consistent performance and reliability.

Long-Term Value & Sustainability

Investing in the FoxESS 5.7-US + 12kWh Battery + Hub contributes to long-term energy savings and environmental sustainability. By maximizing renewable energy usage and reducing reliance on fossil-fuel-based grid power, this system supports cleaner energy consumption while offering strong financial returns over time.

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 5.7 kW inverter 12 kWh — US split-phase hybrid ESS kit

Key features

Inverter (H1-5.7-US): 5,700 W @ 120/240 V; Max PV 11.4 kW STC; MPPT 80–550 V; Type 4X/IP66
Battery (ECS4000-H3): ≈11.92 kWh · 172.8 V nominal (145.8–197.1 V) · 50 A cont. · IP65 · ≥6000 cycles
Gateway (Hub G2): 200 A service, <20 ms transfer, 3 smart circuits (1×240 V + 2×120 V @ 80 A), generator-ready

Specifications

**FoxESS 5.7 kW inverter 12 kWh** — specification box
Inverter — H1-5.7-US
PV input	Max PV 11.4 kW STC · 600 V max · MPPT 80–550 V
AC output	5,700 W rated · ~23.8 A @ 120/240 V split-phase
Battery bus	85–460 V HV · 50 A charge/discharge
Battery — ECS4000-H3
Energy / voltage	≈11.92 kWh · 172.8 V nominal (145.8–197.1 V)
Current & cycles	50 A cont. (65 A, 60 s) · ≥6000 cycles @ 90% DoD
Gateway — Hub G2
Service / rating	200 A · 48 kW · <20 ms transfer · 3 managed circuits

Compact backup ke liye, FoxESS 5.7 kW inverter 12 kWh kit PV headroom, reliable HV storage aur Hub-based smart-load management ka balanced combo deta hai. ^{[FoxESS PDFs]}

Why Choose FoxESS 5.7-US + 12kWh Battery + Hub?

This system is ideal for users seeking reliable backup power, advanced monitoring, and the ability to expand storage capacity as energy needs grow.

Key Features of FoxESS 5.7-US + 12kWh Battery + Hub

High-Efficiency Hybrid Inverter

Advanced 12kWh Lithium Battery

Intelligent Energy Hub

The integrated hub acts as the control center, managing power distribution efficiently. It allows real-time monitoring, load prioritization, and seamless switching between energy sources.

Scalable & Modular Design

Benefits of Using FoxESS 5.7-US + 12kWh Battery + Hub

Reliable Backup Power

During grid outages, the system automatically supplies power to essential loads, ensuring uninterrupted operation of critical appliances.

Optimized Solar Self-Consumption

By storing excess solar energy, the system reduces energy export losses and allows you to use stored power during peak tariff hours.

Smart Monitoring & Control

Advanced monitoring capabilities provide insights into energy generation, consumption, and storage, enabling users to make informed energy decisions.

Enhanced Safety & Durability

The FoxESS 5.7-US + 12kWh Battery + Hub is built with multiple safety layers, including battery management systems, thermal protection, and surge protection, ensuring long-term operational safety.

Installation & Compatibility

Ideal Applications

Residential solar energy storage
Backup power for homes and small businesses
Peak load shifting and energy cost optimization
Smart energy management systems

The FoxESS 5.7-US + 12kWh Battery + Hub adapts to different energy demands while maintaining consistent performance and reliability.

Long-Term Value & Sustainability

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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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