SENEC 450
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SENEC 450

SENEC 450

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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.

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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.

SENEC SENEC 450 450W N-Type TOPCon Bifacial Solar Panel

Model SENEC 450 | N-Type TOPCon | 144 Half-Cell | Bifacial | 1500V System Voltage

450 W
Max Power Output
22.5%
Module Efficiency
144
N-Type TOPCon

Product Overview

The SENEC SENEC 450 450W N-Type TOPCon Bifacial Solar Panel is engineered for high performance residential and commercial arrays. This advanced module uses N-type TOPCon half-cell technology to deliver up to 450 watts of rated power. Module efficiency reaches 22.5 percent under standard test conditions for excellent energy density on limited roof space. Bifacial construction captures light from the front and rear sides, which can significantly boost total energy yield. The panel operates within a wide temperature range from minus 40 to plus 85 degrees Celsius. A robust dual-glass build with tempered, anti-reflection coated glass on both sides improves durability in harsh climates. With a maximum system voltage of 1500 volts and a 30 amp reverse current rating, the module fits modern high power system designs. The SENEC 450 panel is produced by SENEC GmbH in Germany and is designed for long term reliability. A 30 year linear performance warranty supports bankable energy production over the full lifetime of the system. This combination of European engineering, bifacial design and long warranties makes it a strong choice for future ready solar projects.

Key Benefits

High power density for limited space: Each SENEC 450 module provides 450 watts of peak power with 22.5 percent efficiency. This allows more power from fewer panels on roofs or constrained sites.

Bifacial energy gain: Bifacial design generates power from both the front and rear surfaces. Reflected light from bright surfaces can raise total yield beyond the front side rating.

Advanced N-type TOPCon cells: N-type TOPCon half-cells offer lower degradation and high efficiency. This technology helps maintain stronger performance across a wide range of operating conditions.

Robust dual-glass construction: Two 2 mm panes of tempered, anti-reflection glass protect the cells from hail, snow, and wind. The dual-glass structure also reduces moisture ingress for long term reliability.

Long-term performance assurance: A product warranty of 30 years is provided for the module. The linear performance warranty keeps at least 99 percent output in year one and 87.4 percent after 30 years.

How It Works

Sunlight strikes the N-type TOPCon solar cells within the SENEC 450 module and is converted into direct current electricity. Half-cut cell architecture reduces electrical losses and improves shade tolerance across the module surface. The bifacial structure allows the rear side of the panel to absorb reflected light from the roof, ground, or nearby surfaces. This additional irradiation boosts output beyond the front side standard test power in many installations. At standard test conditions, the module delivers 450 watts at a voltage of 33.91 volts and a current of 13.27 amps. Under more realistic operating temperatures around the NMOT value of 42 degrees, power remains high at 339 watts. Integrated bypass diodes in the IP68 junction box help limit power loss from partial shading. Current flows through MC4 compatible connectors to the system wiring, then to an inverter that converts DC power to AC electricity. The inverter synchronizes with the site electrical system, supplying clean energy and offsetting grid consumption. Over time, the low annual degradation rate of about 0.42 percent helps preserve output and system savings.

Front-side light conversion: The front glass features an anti-reflection coating that increases light transmission to the cells. Incoming photons are absorbed by N-type TOPCon cells and generate charge carriers. These carriers are collected and directed through the cell grid to create a steady DC current.

Rear-side bifacial gain: Transparent rear glass lets the cells capture light reflected from the mounting surface. Installations over bright ground or white roofs can benefit from substantial extra energy. This bifacial gain is especially valuable in commercial and ground mount systems with good albedo.

Reliable power delivery and protection: Three integrated bypass diodes limit hot spots when parts of the module are shaded. The IP68 junction box protects connections from dust and water ingress. MC4-Evo2A connectors ensure secure coupling to string wiring and compatible inverters.

Technical Specifications

Brand / Manufacturer SENEC GmbH, Germany
Model Name SENEC 450 (SENEC.Solar 440–460N DGT G4 Series)
Cell Technology N-type TOPCon half-cell monocrystalline
Cell Size 182 x 187 mm full cells (configured as 144 half-cells)
Power Range 440 Wp to 460 Wp series, 450 Wp nominal
Maximum Power at STC (Pmax) 450 Wp
Module Efficiency (STC) 22.5 %
Power Tolerance ± 3.0 % on Pmax
Voltage at Maximum Power (Vmpp, STC) 33.91 V
Current at Maximum Power (Impp, STC) 13.27 A
Open-Circuit Voltage (Voc, STC) 40.25 V
Short-Circuit Current (Isc, STC) 14.17 A
Maximum Power at NMOT (Pmax) 339 W
Voltage at Maximum Power (Vmpp, NMOT) 31.49 V
Current at Maximum Power (Impp, NMOT) 10.73 A
Open-Circuit Voltage (Voc, NMOT) 38.13 V
Short-Circuit Current (Isc, NMOT) 11.41 A
Nominal Module Operating Temperature (NMOT) 42 ± 2 °C
Operating Temperature Range -40 °C to +85 °C
Maximum System Voltage 1500 V DC
Series Fuse Rating / Reverse Current 30 A maximum
Module Dimensions (L × W × H) 1762 x 1134 x 30 mm
Weight 24.5 kg
Front Glass 2 mm tempered, high transmission, anti-reflection coated glass
Rear Glass 2 mm transparent tempered glass
Frame Black anodized aluminium alloy frame
Junction Box Protection Class IP68 rated junction box with 3 bypass diodes
Connector Type MC4-Evo2A compatible connectors
Cable Cross-Section 4.0 mm² solar cable
Cable Length 1100 mm

Certifications & Compliance

Certifications: Certified to relevant IEC and safety standards for crystalline PV modules; dual-glass bifacial construction tested for hail impact up to 40 mm grain diameter as specified in the technical datasheet.
Inverter Compatibility: Compatible with most modern string and hybrid inverters that accept 1500 V DC systems and MC4 style connectors. Always verify voltage and current limits for the chosen inverter model.
Environmental: Designed for outdoor installation with IP68 junction box sealing and dual tempered glass. Operating temperature from -40 °C to +85 °C supports use in cold and hot climates.
Warranty: 30-year limited product warranty on materials and workmanship. Linear performance warranty guarantees 99 % of rated power in year 1 and at least 87.4 % of rated power after 30 years, with an average annual degradation rate of about 0.42 %.

Documentation

Product Datasheet (PDF)

● 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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