Does the PCS500-US-480 model come with a transformer?

No, this is a transformer-less model designed for higher efficiency and reduced energy losses.

Can multiple ATESS PCS500-US-480 inverters be connected in parallel?

Yes, the system supports parallel configuration for scaling multi-megawatt installations.

Is the ATESS US standard 500KW battery inverter suitable for renewable hybrid systems?

Absolutely. It integrates seamlessly with battery storage, solar, wind, and microgrid applications

What types of grid support does the ATESS PCS500-US-480 provide?

It offers reactive power compensation, frequency regulation, voltage control, black start capability, and advanced grid protection features.

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ATESS US standard 500KW battery inverter (without tranformer) - ATESS PCS500-US-480

ATESS US standard 500KW battery inverter (without tranformer) - ATESS PCS500-US-480

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SKU PES-SPS-SIV-0658

ATESS US standard 500KW battery inverter (without tranformer) - ATESS PCS500-US-480

$40,612.00 USD

$ $40,612.00 USD

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SKU:PES-SPS-SIV-0658
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Height: 31.5
Isfollow: true
Isindex: true
Length: 47.24
Width: 74.8

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In Stock

Get yours today!

9+ sold

In the last 7 days

Flat Rate Shipping - Calculated at Checkout

Get it between Mon, Sep 22 - Wed, Sep 24

Free Returns

Free Returns within 30 Days of Purchase

Lifetime Customer Support

Unlimited lifetime support, always available.

View full details

ATESS PCS500-US-480 — 500 kW Bidirectional Battery Inverter (277/480 V Wye)

PCS500-US-480 is a robust 500 kW PCS for large C&I microgrids—with ≤10 ms transfer for grid/DG integration, and up to 8 units in parallel. ^{[ATESS product + datasheet]}

The ATESS US standard 500KW battery inverter - ATESS PCS500-US-480 is a powerful, efficient, and advanced power conversion solution. It is designed for large-scale commercial, industrial, and utility-level energy storage systems. This inverter delivers high performance and long-term stability, ensuring reliable energy transfer, optimized system efficiency, and intelligent grid support for varied applications.

Overview of the ATESS PCS500-US-480 (without transformer)

This ATESS PCS500-US-480 (without transformer) is engineered for demanding power environments with precision. The transformer-less design reduces energy loss, increases operational efficiency, and offers a compact structure. As energy storage grows across industries, this inverter is vital for managing battery output, grid interaction, and system stability.

This device’s adaptable configuration allows seamless integration with lithium-ion battery systems, hybrid setups, microgrids, and renewable energy infrastructures. It excels in peak shaving, backup power, frequency regulation, and solar-plus-storage applications with minimal maintenance requirements.

Key features

500 kW / 500 kVA @ 480 V, 601 A
Battery 600–900 V, max charge/discharge 917 A
Max efficiency 98.5%, Type 1 enclosure
Touchscreen LCD; RS485/CAN; Type II DC surge protection
Built-in transformer: No (US-480 datasheet note)

Specifications

**PCS500-US-480** — specification box
AC (on-grid)
Apparent / rated power	500 kVA / 500 kW
Rated voltage / current	480 V (277/480 V wye), 601 A
Voltage / freq range	432–528 V; 50/60 Hz (45–55 / 55–65 Hz)
PF / THDi	0.8 lag–0.8 lead; <3%
AC (off-grid)
Rated power / current	500 kW / 601 A @ 480 V
THDu / overload	≤2% (linear); 110% 10 min, 120% 1 min
DC (battery)
Voltage range	600–900 VDC
Max charge / discharge	917 A
General
Efficiency	98.50% (max)
Enclosure / noise	Type 1; <65 dB(A) @ 1 m
Environment	−25 °C ~ +55 °C; ≤6000 m (derate >3000 m)
Transfer (grid↔backup)	Manual (default); Automatic (optional) ≤10 ms
Dimensions (W×H×D)	1200 × 1900 × 800 mm (≈ 47.24″ × 74.80″ × 31.50″)
Weight	870 kg (≈ 1918.02 lb)
Built-in transformer	No

Key Features and Performance Advantages

High Efficiency & Intelligent Control

This inverter is built using advanced power electronics optimized for peak energy throughput. Its high conversion efficiency guarantees effective use of each kilowatt generated or stored. Intelligent control algorithms adapt to fluctuating loads, varying grid conditions, and multiple operational modes.

Scalable Power for Large Projects

The 500KW inverter supports parallel connections, enabling easy system scaling. Operators can manage multi-megawatt installations or phased expansions without performance loss or instability.

Robust Grid Support

Integrated grid-friendly features include:

Reactive power compensation
Black start capability
Voltage and frequency regulation
Islanding protection
Fast response times for grid fluctuations

These functionalities maintain power quality and support smart-grid requirements.

Durable and Efficient Transformer-less Design

The ATESS PCS500-US-480 removes extra conversion steps. This boosts operational efficiency and lowers heat output. The design offers a smaller footprint, easier cooling, and consistent performance over time.

Advanced Monitoring & Remote Management

Remote control, live monitoring, and detailed energy analytics enable operators to track performance easily. Its smart software supports fault detection, diagnostics, and optimization for better system management.

Applications of
ATESS US standard 500KW battery inverter - ATESS PCS500-US-480

This high-capacity inverter fits several large-scale uses:

Commercial & Industrial Energy Storage

Businesses stabilize power use, lower peak demand charges, and maintain reliable backup with this system.

Renewable Energy Hybrid Systems

Hybrid setups combining solar, wind, and batteries benefit from the fast response and high efficiency of the ATESS PCS500-US-480.

Utility-Level Projects

In large storage plants or grid-support centers, the inverter enables smooth frequency regulation, efficient dispatch, and stable power delivery.

Microgrids

Its intelligent controls benefit remote microgrids, community projects, and critical facilities needing steady power.

Why Choose
ATESS US standard 500KW battery inverter - ATESS PCS500-US-480?

Selecting the ATESS US standard 500KW battery inverter - ATESS PCS500-US-480 is a sound choice for dependable engineering and future-ready performance. Its efficiency, scalability, grid stability, and smart management tools make it a top contender in high-capacity power conversion.

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.

ATESS PCS500-US-480 — 500 kW Bidirectional Battery Inverter (277/480 V Wye)

PCS500-US-480 is a robust 500 kW PCS for large C&I microgrids—with ≤10 ms transfer for grid/DG integration, and up to 8 units in parallel. ^{[ATESS product + datasheet]}

Overview of the ATESS PCS500-US-480 (without transformer)

Key features

500 kW / 500 kVA @ 480 V, 601 A
Battery 600–900 V, max charge/discharge 917 A
Max efficiency 98.5%, Type 1 enclosure
Touchscreen LCD; RS485/CAN; Type II DC surge protection
Built-in transformer: No (US-480 datasheet note)

Specifications

**PCS500-US-480** — specification box
AC (on-grid)
Apparent / rated power	500 kVA / 500 kW
Rated voltage / current	480 V (277/480 V wye), 601 A
Voltage / freq range	432–528 V; 50/60 Hz (45–55 / 55–65 Hz)
PF / THDi	0.8 lag–0.8 lead; <3%
AC (off-grid)
Rated power / current	500 kW / 601 A @ 480 V
THDu / overload	≤2% (linear); 110% 10 min, 120% 1 min
DC (battery)
Voltage range	600–900 VDC
Max charge / discharge	917 A
General
Efficiency	98.50% (max)
Enclosure / noise	Type 1; <65 dB(A) @ 1 m
Environment	−25 °C ~ +55 °C; ≤6000 m (derate >3000 m)
Transfer (grid↔backup)	Manual (default); Automatic (optional) ≤10 ms
Dimensions (W×H×D)	1200 × 1900 × 800 mm (≈ 47.24″ × 74.80″ × 31.50″)
Weight	870 kg (≈ 1918.02 lb)
Built-in transformer	No

Key Features and Performance Advantages

High Efficiency & Intelligent Control

Scalable Power for Large Projects

The 500KW inverter supports parallel connections, enabling easy system scaling. Operators can manage multi-megawatt installations or phased expansions without performance loss or instability.

Robust Grid Support

Integrated grid-friendly features include:

Reactive power compensation
Black start capability
Voltage and frequency regulation
Islanding protection
Fast response times for grid fluctuations

These functionalities maintain power quality and support smart-grid requirements.

Durable and Efficient Transformer-less Design

Advanced Monitoring & Remote Management

Applications of
ATESS US standard 500KW battery inverter - ATESS PCS500-US-480

This high-capacity inverter fits several large-scale uses:

Commercial & Industrial Energy Storage

Businesses stabilize power use, lower peak demand charges, and maintain reliable backup with this system.

Renewable Energy Hybrid Systems

Hybrid setups combining solar, wind, and batteries benefit from the fast response and high efficiency of the ATESS PCS500-US-480.

Utility-Level Projects

In large storage plants or grid-support centers, the inverter enables smooth frequency regulation, efficient dispatch, and stable power delivery.

Microgrids

Its intelligent controls benefit remote microgrids, community projects, and critical facilities needing steady power.

Why Choose
ATESS US standard 500KW battery inverter - ATESS PCS500-US-480?

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?

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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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