MQ Energy 290
MQ Energy 290
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Unlimited lifetime support, always available.

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SKU  PES-SPS-SOL-12015

MQ Energy 290

MQ Energy 290

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

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truck
In Stock

Get yours today!

truck
9+ sold

In the last 7 days

truck
Flat Rate Shipping - Calculated at Checkout

Delivery timeframe shown above at checkout

Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

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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.

MQ Energy 290 290W Polycrystalline Solar Panel

Model No. 290 | Polycrystalline | 120 Cells | Mono | 1500V System Voltage

290 Wp
Max Power Output
17.35%
Module Efficiency
120
Polycrystalline Cells

Product Overview

The MQ Energy 290 polycrystalline solar panel is built for dependable daily power generation. It combines a 290 Wp maximum output with strong 17.35% panel efficiency. This module is designed for residential and commercial solar projects that need stable performance and long service life. The focus keyword is polycrystalline solar panel, and this model delivers it in a practical, cost-effective format. Its 120-cell design supports efficient energy conversion across a wide operating range. The panel uses tempered glass, an anodized aluminium frame, and IP68 junction box protection. These features help improve durability in challenging outdoor environments. With a 12-year product warranty, it offers added confidence for long-term installations.

Key Benefits

Reliable Output: The module delivers 290 Wp, supporting consistent energy production for everyday use.

Strong Efficiency: A 17.35% efficiency rating helps convert sunlight into usable electricity effectively.

Durable Construction: Tempered glass and an anodized aluminium frame support long-term outdoor use.

Weather Protection: An IP68 junction box and robust materials improve resilience in harsh conditions.

Installation Friendly: MC4 connectors and a 400 mm cable length help simplify system integration.

How It Works

This polycrystalline solar panel captures sunlight through 120 photovoltaic cells. Those cells convert solar energy into direct current electricity. The module then produces a maximum power output of 290 Wp under standard testing conditions. Its operating values are balanced for practical system design and stable performance. The panel is suited to a broad temperature range, which supports reliable generation in varying climates. The 1500V maximum system voltage allows flexible string design in larger installations. Its 15 A series fuse rating and MC4 connectors support safe electrical integration. The durable frame and glass structure protect the module while it works outdoors every day.

Sunlight Conversion: The cells absorb sunlight and convert it into electrical current. This process begins as soon as light reaches the module surface.

Power Conditioning: The module operates at 31.6 V Vmpp and 9.18 A Impp. These values define its efficient operating point under load.

System Integration: The MC4 connectors and 4 mm² cable help connect the module to the wider solar array. This supports clean installation and secure operation.

Technical Specifications

Brand MQ Energy
Model Number 290
Technology Polycrystalline
Maximum Power (Pmax) 290 Wp
Power Range 285 ~ 295 Wp
Power Tolerance 0 ~ +2 %
Panel Efficiency 17.35 %
Efficiency Range 17.05 ~ 17.65 %
Voltage at Maximum Power (Vmpp) 31.6 V
Current at Maximum Power (Impp) 9.18 A
Open Circuit Voltage (Voc) 38.8 V
Short Circuit Current (Isc) 9.58 A
Temperature 45±2 °C
Operating Temperature Range -40 - 85 °C
Temperature Coefficient of Pmax -0.37 %/°C
Temperature Coefficient of Voc -0.29 %/°C
Temperature Coefficient of Isc 0.049 %/°C
Maximum System Voltage 1500 V
Series Fuse Rating 15 A
Panel Dimension (H/W/D) 1685 x 992 x 35 mm
Weight 18.5 kg
Cell Number 120
Glass Type Tempered Glass
Glass Thickness 3.2 mm
Encapsulant Type EVA
Frame Type Anodized Aluminium
Junction Box Protection Class IP 68
Connector Type MC4
Cable Crossection 4 mm2
Cable Length 400 mm
Seller Name Taizhou MQ Energy Technology Co., Ltd.
Country China

Certifications & Compliance

Certifications: Not specified in the provided data
Inverter Compatibility: Compatible with standard solar inverter systems using MC4 connections
Environmental: IP68 junction box, tempered glass, and anodized aluminium frame support outdoor use
Warranty: 12 Years Product Warranty

● Available | Contact us for lead time and pricing

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

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.

MQ Energy 290 290W Polycrystalline Solar Panel

Model No. 290 | Polycrystalline | 120 Cells | Mono | 1500V System Voltage

290 Wp
Max Power Output
17.35%
Module Efficiency
120
Polycrystalline Cells

Product Overview

The MQ Energy 290 polycrystalline solar panel is built for dependable daily power generation. It combines a 290 Wp maximum output with strong 17.35% panel efficiency. This module is designed for residential and commercial solar projects that need stable performance and long service life. The focus keyword is polycrystalline solar panel, and this model delivers it in a practical, cost-effective format. Its 120-cell design supports efficient energy conversion across a wide operating range. The panel uses tempered glass, an anodized aluminium frame, and IP68 junction box protection. These features help improve durability in challenging outdoor environments. With a 12-year product warranty, it offers added confidence for long-term installations.

Key Benefits

Reliable Output: The module delivers 290 Wp, supporting consistent energy production for everyday use.

Strong Efficiency: A 17.35% efficiency rating helps convert sunlight into usable electricity effectively.

Durable Construction: Tempered glass and an anodized aluminium frame support long-term outdoor use.

Weather Protection: An IP68 junction box and robust materials improve resilience in harsh conditions.

Installation Friendly: MC4 connectors and a 400 mm cable length help simplify system integration.

How It Works

This polycrystalline solar panel captures sunlight through 120 photovoltaic cells. Those cells convert solar energy into direct current electricity. The module then produces a maximum power output of 290 Wp under standard testing conditions. Its operating values are balanced for practical system design and stable performance. The panel is suited to a broad temperature range, which supports reliable generation in varying climates. The 1500V maximum system voltage allows flexible string design in larger installations. Its 15 A series fuse rating and MC4 connectors support safe electrical integration. The durable frame and glass structure protect the module while it works outdoors every day.

Sunlight Conversion: The cells absorb sunlight and convert it into electrical current. This process begins as soon as light reaches the module surface.

Power Conditioning: The module operates at 31.6 V Vmpp and 9.18 A Impp. These values define its efficient operating point under load.

System Integration: The MC4 connectors and 4 mm² cable help connect the module to the wider solar array. This supports clean installation and secure operation.

Technical Specifications

Brand MQ Energy
Model Number 290
Technology Polycrystalline
Maximum Power (Pmax) 290 Wp
Power Range 285 ~ 295 Wp
Power Tolerance 0 ~ +2 %
Panel Efficiency 17.35 %
Efficiency Range 17.05 ~ 17.65 %
Voltage at Maximum Power (Vmpp) 31.6 V
Current at Maximum Power (Impp) 9.18 A
Open Circuit Voltage (Voc) 38.8 V
Short Circuit Current (Isc) 9.58 A
Temperature 45±2 °C
Operating Temperature Range -40 - 85 °C
Temperature Coefficient of Pmax -0.37 %/°C
Temperature Coefficient of Voc -0.29 %/°C
Temperature Coefficient of Isc 0.049 %/°C
Maximum System Voltage 1500 V
Series Fuse Rating 15 A
Panel Dimension (H/W/D) 1685 x 992 x 35 mm
Weight 18.5 kg
Cell Number 120
Glass Type Tempered Glass
Glass Thickness 3.2 mm
Encapsulant Type EVA
Frame Type Anodized Aluminium
Junction Box Protection Class IP 68
Connector Type MC4
Cable Crossection 4 mm2
Cable Length 400 mm
Seller Name Taizhou MQ Energy Technology Co., Ltd.
Country China

Certifications & Compliance

Certifications: Not specified in the provided data
Inverter Compatibility: Compatible with standard solar inverter systems using MC4 connections
Environmental: IP68 junction box, tempered glass, and anodized aluminium frame support outdoor use
Warranty: 12 Years Product Warranty

● Available | Contact us for lead time and pricing
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Prepare for Anything

From hurricanes to blackouts, reliable solar power ensures you're able to keep your home & family safe no matter what comes your way.

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Making one-click solar solutions simple since 2018. Whether you’re powering a cabin, charging devices, or backing up your home.

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Secure Your Independence

Say goodbye to reliance on the energy companies. Enjoy the same freedom that 50,000+ customers have with their own solar power system.

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.

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.

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Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Be Smart, Buy From an Authorized Dealer

When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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Customers rate us 4.3/5 based on 4 reviews.