Topco Solar 440
Topco Solar 440
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Topco Solar 440

Topco Solar 440

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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.

Topco Solar 440 Monocrystalline 440W PERC Monofacial Solar Panel

Model 440 | Mono PERC | 320 Cells Monocrystalline | Monofacial | 1500V System Voltage

440 W
Max Power Output
21.1%
Module Efficiency
320
N-Type TOPCon

Product Overview

The Topco Solar 440 monocrystalline 440W solar panel is designed for homeowners and businesses seeking reliable power density. With a maximum output of 440 watts and efficiency up to 21.1 percent, this module delivers strong performance on limited roof space. The advanced Mono PERC cell design allows more sunlight to be converted into usable electricity across a wide power range from 420 to 445 watts. Stable output is provided through a 15 year product warranty and 25 year power warranty with an expected 84.8 percent output at the end. Engineered for durability, the panel operates between minus 40 and 85 degrees Celsius and suits demanding climates. Robust 3.2 millimeter tempered glass, an anodized aluminium frame, and IP68 junction box protection support long term energy production. At 21.8 kilograms and 1899 by 1096 millimeters, the module balances high power with a manageable footprint. This panel is supplied by Topco Solar Inc. in the United States and works well for grid tied or hybrid systems.

Key Benefits

High power density for tight roofs: A rated output up to 440 watts with efficiency up to 21.4 percent allows more energy from fewer modules, which is ideal where roof or ground space is limited.

Reliable long term performance: The 15 year product warranty and 25 year power warranty help ensure dependable generation, with power expected to remain at 84.8 percent of initial output by the end of the term.

Durable construction for harsh environments: Tempered glass, an anodized aluminium frame, and an IP68 junction box support resistance to moisture, dust, and mechanical stress in challenging weather conditions.

Stable performance in real world temperatures: A temperature coefficient of power at minus 0.34 percent per degree Celsius helps maintain generation on hot days, improving annual energy yields in warm climates.

Flexible system design options: With a system voltage rating of 1500 volts and a series fuse rating of 25 amps, the panel supports longer strings, which can reduce balance of system costs on larger projects.

How It Works

Sunlight reaches the monocrystalline cells on the Topco Solar 440 module surface and is converted into direct current electricity. The Mono PERC architecture improves light capture by reflecting unused photons back into the cell, which increases energy conversion. Under standard test conditions, the panel can reach up to 440 watts with a voltage at maximum power of 36.3 volts and current at maximum power of 12.13 amps. That current then flows through robust 4 square millimeter cables and bypass diodes in the IP68 junction box, which are designed to support safe operation. Strings of modules can be connected in series up to the 1500 volt system rating, and the combined DC output is directed to an inverter or hybrid inverter. The inverter converts the DC power from the array into AC power for household loads or for export to the grid as allowed by the installation. Throughout its life, the panel operates within a wide temperature range while its power response follows the specified coefficients, ensuring predictable performance modeling.

Monocrystalline PERC energy conversion: Each monocrystalline cell uses high purity silicon to form a uniform crystal structure, which supports higher efficiency compared with many polycrystalline designs. The PERC rear surface layer enables improved light trapping, so more of the incoming solar energy becomes electrical output across the 420 to 445 watt range.

Optimized electrical output and protection: At maximum power, the panel delivers 36.3 volts and 12.13 amps under standard test conditions, which works well with modern string inverter inputs. Integrated diodes within the junction box help mitigate the impact of partial shading by allowing current to bypass shaded sections, reducing potential power loss and hot spots.

Mechanical design and thermal behavior: The 3.2 millimeter tempered glass and anodized aluminium frame support the module against wind, snow, and handling stress during installation. Thermal coefficients of power, voltage, and current describe how output changes with temperature, which allows accurate system simulations and helps installers size the array and inverter safely in different climates.

Technical Specifications

Brand Topco Solar Inc.
Model Number 440
Cell Technology Monocrystalline Mono PERC
Cell Count and Type 320 monocrystalline cells
Power Range 420 Wp to 445 Wp
Maximum Power (Pmax) – High Configuration 440 Wp
Voltage at Maximum Power (Vmpp) – High Configuration 36.3 V
Current at Maximum Power (Impp) – High Configuration 12.13 A
Open Circuit Voltage (Voc) – High Configuration 43.7 V
Short Circuit Current (Isc) – High Configuration 12.9 A
Maximum Power (Pmax) – Alternate Configuration 331 Wp
Voltage at Maximum Power (Vmpp) – Alternate Configuration 34.6 V
Current at Maximum Power (Impp) – Alternate Configuration 9.57 A
Open Circuit Voltage (Voc) – Alternate Configuration 41.7 V
Short Circuit Current (Isc) – Alternate Configuration 10.41 A
Module Efficiency Range 20.2% to 21.4% (typical 21.1%)
Nominal Operating Cell Temperature 42.3 ± 2 °C
Operating Temperature Range -40 °C to 85 °C
Temperature Coefficient of Pmax -0.34 % / °C
Temperature Coefficient of Voc -0.27 % / °C
Temperature Coefficient of Isc +0.04 % / °C
Maximum System Voltage 1500 V
Maximum Series Fuse Rating 25 A
Total Degradation at Year 25 84.8% of initial power guaranteed
Annual Degradation Rate (Approximate) 0.61% per year after initial period
Panel Dimensions (H × W × D) 1899 × 1096 × 30 mm
Weight 21.8 kg
Glass Type and Thickness 3.2 mm tempered glass
Frame Material Anodized aluminium frame
Junction Box Diodes 2 bypass diodes integrated
Junction Box Protection Rating IP68 rated junction box
Cable Cross Section 4 mm²
Country of Seller United States

Certifications & Compliance

Certifications: Industry standard safety and performance certifications are typically supported for grid tied use. Please confirm exact certificate list with Topco Solar Inc. before final design and permitting.
Inverter Compatibility: Suitable for most modern string and hybrid inverters rated for 1500 volt DC systems when strings are designed within voltage and current limits.
Environmental: Designed for outdoor use with IP68 junction box and tempered glass, supporting resistance to dust, moisture, and normal climatic stresses when installed per guidelines.
Warranty: 15 year product warranty against defects in materials and workmanship, plus a 25 year power warranty targeting 84.8 percent of initial rated power by the end of the warranty period, subject to manufacturer terms.

● 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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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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