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ESG New Energy ES-590W

Trusted by 1,000s of Contractors & Installers

Ships Direct from Manufacturer — typically leaves the dock in 3–7 business days

SKU PES-SPS-SOL-4389

OEM Authorized Dealer Full OEM Warranty

$180.00 USD

~~$0.01~~ $180.00 USD

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SKU: PES-SPS-SOL-4389
Min purchase: 10 pcs

Complete the job

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Available to Order

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Call 888-876-0007 for a pallet-quote

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Unlimited lifetime support, always available.

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ESG New Energy ES-590W $180.00

Specifications

Power Rating 590W

What is your return policy?

Returns are accepted within 30 days of delivery and require an RMA number. Returns of non-defective items carry a 40% restocking fee per our Refund Policy; defective, damaged-in-transit, or mis-shipped items are exempt. Special-order items are final sale.

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.

ESG New Energy ES-590W 590W Monocrystalline Solar Panel

Model ES-590W | Monocrystalline | 156 Cells | Mono | 1500V System Voltage

590 Wp

Max Power Output

21.12%

Module Efficiency

156

Monocrystalline Cells

Product Overview

The ESG New Energy ES-590W is a high-output monocrystalline solar panel designed for reliable performance and efficient space use. It delivers a maximum power rating of 590 Wp with a strong module efficiency of 21.12 percent. The panel uses 156 cells and is built for stable operation in demanding conditions. Its 10-year warranty adds confidence for long-term solar projects. This model suits commercial and utility applications where dependable generation matters. The wide power range supports flexible system planning. Its streamlined structure also helps simplify installation and integration.

Key Benefits

High Power Output: The module produces up to 590 Wp for strong energy generation.

Efficient Design: Its 21.12 percent efficiency supports better output from limited roof space.

Wide Operating Range: The panel is built for stable performance from -40 to 85 °C.

Durable Construction: Tempered anti-reflection glass and anodized aluminium improve long-term resilience.

Installation Flexibility: A 1500 V system voltage supports modern solar system designs.

How It Works

This solar panel converts sunlight into direct current electricity through monocrystalline photovoltaic cells. The cell structure is designed to capture solar energy efficiently across a broad operating range. Generated power moves through the junction box and diodes for safer current flow and better protection. The panel can then be connected in a larger system to support inverters, batteries, or grid-tied equipment. Its voltage and current values help technicians size strings accurately. The high system voltage rating also supports larger installations with fewer design limits. The result is steady solar production with practical compatibility for many applications.

Photon Conversion: Sunlight strikes the monocrystalline cells and creates electrical current. The cells are arranged to support strong energy capture and consistent output.

Power Flow Management: The junction box and three diodes help guide current safely. This improves operational stability during everyday use.

System Integration: The panel connects into string systems using its electrical ratings. Its 1500 V maximum system voltage supports scalable solar designs.

Technical Specifications

Technology	Monocrystalline
Model Number	ES-590W
Product Warranty	10 Years
Power Tolerance	0 ~ +1 %
Maximum Power (Pmax)	590 Wp
Voltage at Maximum Power (Vmpp)	44.49 V
Current at Maximum Power (Impp)	13.27 A
Open Circuit Voltage (Voc)	53.76 V
Short Circuit Current (Isc)	13.97 A
Panel Efficiency	21.12 %
Second Maximum Power (Pmax)	439 Wp
Second Voltage at Maximum Power (Vmpp)	41.46 V
Second Current at Maximum Power (Impp)	10.59 A
Second Open Circuit Voltage (Voc)	50.75 V
Second Short Circuit Current (Isc)	11.27 A
Temperature	45±2 °C
Operating Temperature Range	-40 - 85 °C
Temperature Coefficient of Pmax	-0.350 %/°C
Temperature Coefficient of Voc	-0.280 %/°C
Temperature Coefficient of Isc	+0.048 %/°C
Maximum System Voltage	1500 V
Series Fuse Rating	25 A
Panel Dimension (H/W/D)	2464x1134x35 mm
Weight	32 kg
Cell Size	182×182 mm
Cell Number	156
Glass Type	Anti-reflection Coating, Tempered Glass
Glass Thickness	3.2 mm
Encapsulant Type	PET
Back Cover Type	PET
Frame Type	Anodized Aluminium
Junction Box Diodes	3
Junction Box Protection Class	I
Power Range	575 ~ 600 Wp
Efficiency Range	20.58 ~ 21.49 %
Seller Name	Guangzhou ESG New Energy Technology Co., Ltd.
Country	China

Certifications & Compliance

Certifications: Not specified in the provided product data.
Inverter Compatibility: Suitable for solar system integration with a 1500 V maximum system voltage.
Environmental: Operating temperature range is -40 to 85 °C.
Warranty: 10-year product warranty.

● Available | Contact us for lead time and pricing

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?

ESG New Energy ES-590W 590W Monocrystalline Solar Panel

Model ES-590W | Monocrystalline | 156 Cells | Mono | 1500V System Voltage

590 Wp

Max Power Output

21.12%

Module Efficiency

156

Monocrystalline Cells

Product Overview

Key Benefits

High Power Output: The module produces up to 590 Wp for strong energy generation.

Efficient Design: Its 21.12 percent efficiency supports better output from limited roof space.

Wide Operating Range: The panel is built for stable performance from -40 to 85 °C.

Durable Construction: Tempered anti-reflection glass and anodized aluminium improve long-term resilience.

Installation Flexibility: A 1500 V system voltage supports modern solar system designs.

How It Works

Photon Conversion: Sunlight strikes the monocrystalline cells and creates electrical current. The cells are arranged to support strong energy capture and consistent output.

Power Flow Management: The junction box and three diodes help guide current safely. This improves operational stability during everyday use.

System Integration: The panel connects into string systems using its electrical ratings. Its 1500 V maximum system voltage supports scalable solar designs.

Technical Specifications

Technology	Monocrystalline
Model Number	ES-590W
Product Warranty	10 Years
Power Tolerance	0 ~ +1 %
Maximum Power (Pmax)	590 Wp
Voltage at Maximum Power (Vmpp)	44.49 V
Current at Maximum Power (Impp)	13.27 A
Open Circuit Voltage (Voc)	53.76 V
Short Circuit Current (Isc)	13.97 A
Panel Efficiency	21.12 %
Second Maximum Power (Pmax)	439 Wp
Second Voltage at Maximum Power (Vmpp)	41.46 V
Second Current at Maximum Power (Impp)	10.59 A
Second Open Circuit Voltage (Voc)	50.75 V
Second Short Circuit Current (Isc)	11.27 A
Temperature	45±2 °C
Operating Temperature Range	-40 - 85 °C
Temperature Coefficient of Pmax	-0.350 %/°C
Temperature Coefficient of Voc	-0.280 %/°C
Temperature Coefficient of Isc	+0.048 %/°C
Maximum System Voltage	1500 V
Series Fuse Rating	25 A
Panel Dimension (H/W/D)	2464x1134x35 mm
Weight	32 kg
Cell Size	182×182 mm
Cell Number	156
Glass Type	Anti-reflection Coating, Tempered Glass
Glass Thickness	3.2 mm
Encapsulant Type	PET
Back Cover Type	PET
Frame Type	Anodized Aluminium
Junction Box Diodes	3
Junction Box Protection Class	I
Power Range	575 ~ 600 Wp
Efficiency Range	20.58 ~ 21.49 %
Seller Name	Guangzhou ESG New Energy Technology Co., Ltd.
Country	China

Certifications & Compliance

● Available | Contact us for lead time and pricing

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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.