MQ Energy 285
MQ Energy 285
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MQ Energy 285

MQ Energy 285

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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.

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We offer several ways to pay to make getting your solar kit simple:

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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.

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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.

Taizhou MQ Energy MQ Energy 285 285W Polycrystalline 120-Cell Solar Panel

Model MQ Energy 285 | Polycrystalline | 120 Half-Cell Polycrystalline | Monofacial | 1500V System Voltage

285 Wp
Max Power Output
17.05%
Module Efficiency
120
Polycrystalline Cells

Product Overview

The Taizhou MQ Energy MQ Energy 285 285W Polycrystalline 120-Cell Solar Panel is designed to deliver reliable power for residential, commercial, and small industrial projects. This polycrystalline module offers a rated maximum power of 285 Wp with a positive power tolerance from 0 to +2 percent. Stable performance is supported by a panel efficiency of up to 17.05 percent under standard test conditions. With a wide operating temperature range from -40 to 85 degrees Celsius, it is suitable for challenging climates and demanding environments. The robust anodized aluminium frame and 3.2 mm tempered glass provide strong mechanical protection against wind, snow, and impact. A 12-year product warranty backs long term durability and dependable output in the field. The panel is manufactured in China by Taizhou MQ Energy Technology Co., Ltd., supporting global solar projects with consistent quality. Compact dimensions of 1685 x 992 x 35 mm and a weight of 18.5 kg make handling and installation straightforward for rooftop and ground mounted arrays. This module is a practical choice for users seeking a balance of efficiency, affordability, and proven polycrystalline technology. The MQ Energy 285 series covers a power range from 285 to 295 Wp, giving designers flexibility when sizing system capacity.

Key Benefits

Reliable 285–295 Wp output range: The module offers a nominal 285 Wp rating with a series power range up to 295 Wp, helping system designers fine tune array sizing while maintaining stable performance and predictable yields.

High efficiency polycrystalline design: Module efficiency between 17.05 and 17.65 percent allows more power from limited roof or ground space, helping maximize kilowatt hour production without increasing installation footprint.

Durable construction for harsh climates: An anodized aluminium frame, 3.2 mm tempered glass, and EVA encapsulation protect cells from moisture, dust, and mechanical stress, supporting long service life in a wide range of weather conditions.

Stable performance across temperatures: Low temperature coefficients for power, voltage, and current help maintain output as module temperature rises, improving real world energy production during hot and sunny days.

Easy integration into modern systems: A maximum system voltage of 1500 V, MC4 compatible connectors, and 4 mm² cables support simple string design, fast installation, and compatibility with a wide range of contemporary inverters and mounting systems.

How It Works

This polycrystalline solar panel converts sunlight into usable electrical energy through its 120 interconnected solar cells. Each cell is made from polycrystalline silicon, which absorbs incoming photons and releases electrons when exposed to light. The internal wiring of the module collects this movement of electrons and forms a direct current power output at the module terminals. Under standard test conditions, the MQ Energy 285 panel delivers up to 285 Wp at a voltage of 31.4 V and a current of 9.08 A. The open circuit voltage of 38.6 V and short circuit current of 9.48 A indicate the maximum electrical potential and current available from the module. When panels are connected together in strings and paired with an inverter, the direct current is converted into alternating current. This alternating current can then supply on site loads or feed into the grid, depending on system configuration and local regulations. The panel’s design, including tempered glass, EVA encapsulation, and sealed junction box, works together to protect the cells and maintain performance over many years of outdoor operation. Temperature coefficients ensure that changes in operating temperature are accounted for, helping to predict energy generation more accurately throughout the year. Overall, the module plays a central role in any PV system by capturing solar energy and turning it into dependable electrical power.

Photon capture and DC generation: Polycrystalline silicon cells absorb sunlight and create a flow of electrons, which is collected as direct current at the module’s output leads. The 120 cell layout optimizes the active area, improving the module’s ability to convert incident irradiation into usable power.

Operating point at maximum power: Under rated conditions, the panel operates near its maximum power point at 31.4 V and 9.08 A, where energy harvest is most efficient. Modern inverters track this point continuously, ensuring the array extracts as much power as possible as sunlight and temperature vary.

System integration and safety: With a maximum system voltage of 1500 V and a series fuse rating of 15 A, the module can be safely combined in longer strings within modern high voltage arrays. MC4 connectors, IP68 junction box protection, and UV resistant 4 mm² cables provide secure electrical connections and help maintain safety and reliability over time.

Technical Specifications

Module Type Polycrystalline solar panel
Model Number MQ Energy 285
Nominal Power Range 285 ~ 295 Wp
Maximum Power (Pmax) 285 Wp
Power Tolerance 0 ~ +2 %
Panel Efficiency 17.05 % (up to 17.65 % for series)
Voltage at Maximum Power (Vmpp) 31.4 V
Current at Maximum Power (Impp) 9.08 A
Open Circuit Voltage (Voc) 38.6 V
Short Circuit Current (Isc) 9.48 A
Normal Operating Cell 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
Maximum Series Fuse Rating 15 A
Panel Dimensions (H × W × D) 1685 × 992 × 35 mm
Weight 18.5 kg
Cell Number and Layout 120 cells, polycrystalline
Glass Type Tempered glass
Glass Thickness 3.2 mm
Encapsulant Type EVA (ethylene vinyl acetate)
Frame Material Anodized aluminium
Junction Box Protection Rating IP68
Connector Type MC4 compatible
Cable Cross Section 4 mm²
Cable Length 400 mm
Seller / Manufacturer Taizhou MQ Energy Technology Co., Ltd., China

Certifications & Compliance

Certifications: Electrical safety and performance certifications are typically available from the manufacturer upon request for this module class.
Inverter Compatibility: Compatible with most modern grid tied and off grid inverters that support 1500 V DC systems and MC4 terminations, subject to inverter input current and voltage limits.
Environmental: Designed for outdoor installation with IP68 junction box protection and UV stable materials, suitable for a wide range of climates when installed to local standards.
Warranty: 12 year product warranty from Taizhou MQ Energy Technology Co., Ltd. covering manufacturing defects under normal operating conditions.

● 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.

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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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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