SENEC 440
SENEC 440
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SENEC 440

SENEC 440

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In Stock

Get yours today!

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9+ sold

In the last 7 days

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Lifetime Customer Support

Unlimited lifetime support, always available.

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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.

SENEC SENEC 440 440W N-Type TOPCon Bifacial Solar Panel

Model SENEC 440 | N-Type TOPCon Half-Cell | 108 Half-Cell | Bifacial | 1500V System Voltage

440 W
Max Power Output
22 %
Module Efficiency
N-Type
N-Type TOPCon

Product Overview

The SENEC 440 N-Type TOPCon bifacial solar panel is engineered for high performance and long term reliability. With a rated output of 440 watts and up to 22 percent module efficiency, this module turns limited roof or ground space into dependable clean energy. Its N-Type TOPCon half cell architecture delivers improved low light behaviour and reduced degradation compared with conventional P type modules. The bifacial design can harvest additional energy from reflected light, which increases yield on bright surfaces and professional mounting systems. This SENEC 440 solar panel is designed for residential, commercial, and small industrial projects where efficiency, durability, and German backed engineering matter. The robust glass glass construction, IP68 junction box, and anodized aluminium frame support installations in demanding European climates. Strong warranties on product and power output offer peace of mind for installers and system owners over the full system lifetime.

Key Benefits

High power density for constrained roofs: A maximum power rating of 440 watts and 22 percent efficiency enable more energy from each square meter. This helps reach project yield targets even when roof space or mounting area is limited.

Advanced N-Type TOPCon cell technology: N type cells offer lower degradation and better temperature behaviour than many standard PERC designs. This means more stable output and improved long term performance across the 30 year power warranty period.

Bifacial energy gain: The glass glass bifacial construction can capture light on both front and rear sides. On bright or reflective surfaces, this can increase effective power generation and improve system profitability over time.

Robust build for harsh environments: Tempered glass with anti reflection coating, an IP68 junction box, and a black anodized aluminium frame support reliable operation. The module is tested for high mechanical loads and is suitable for demanding European weather conditions.

Long term warranty protection: A 30 year limited power warranty with only 0.42 percent annual degradation ensures at least 87.4 percent output in year thirty. This supports accurate financial modelling and long term investment planning for solar projects.

How It Works

The SENEC 440 solar panel converts sunlight into usable electrical energy using high efficiency N type TOPCon solar cells. Each half cut cell is wired in an optimized layout to reduce resistive losses and improve shade tolerance. When sunlight hits the front glass, photons are absorbed by the N type cells and freed electrons create direct current power. The bifacial glass glass design also allows light to reach the rear cell surfaces, so reflected and diffuse light contributes to additional output. The DC energy flows through factory fitted MC4 compatible connectors to an inverter, which converts it to AC for household or commercial loads. Smart system design, including proper tilt, orientation, and mounting height, helps the module achieve its rated performance within real world conditions.

N-Type TOPCon cell conversion: Inside the module, N type TOPCon cells use a passivated contact structure to minimize electron recombination losses. This allows more of the captured sunlight to be converted into electrical energy instead of heat. Because N type silicon has low susceptibility to light induced degradation, the initial power level is maintained more effectively during the first years of operation.

Half-cut and bifacial design synergy: The cells are cut into halves and arranged to reduce the current in each string, which lowers resistive losses. This layout, combined with bifacial glass glass construction, supports better shade behaviour and improved yield from indirect light. The rear side can harvest energy from surrounding surfaces like light gravel, white membranes, or snow, thereby raising total system output.

From DC generation to usable AC power: Once DC power is produced at the module, it is safely carried through 4 mm² solar cables and MC4 connectors. The power is then routed to a compatible string or hybrid inverter, which manages maximum power point tracking using the Vmpp and Impp values. The inverter converts the DC into grid quality AC electricity, ready for on site consumption or export, while monitoring voltage and current within the panel’s rated limits.

Technical Specifications

Brand SENEC GmbH
Model SENEC.Solar 440–460N DGT G4 (440 W variant)
Cell Technology N-Type TOPCon half-cell, monocrystalline
Cell Size 182 x 187 mm (full cell, cut into halves)
Technology Type Bifacial glass-glass, monocrystalline TOPCon
Nominal Power (STC) 440 Wp
Power Tolerance -3 % to +3 % (datasheet sorting 0 to +5 W)
Module Efficiency (STC) 22.0 %
Voltage at Maximum Power Vmpp (STC) 33.51 V
Current at Maximum Power Impp (STC) 13.13 A
Open Circuit Voltage Voc (STC) 39.85 V
Short Circuit Current Isc (STC) 14.03 A
Nominal Power (NMOT) 331 Wp
Voltage at Maximum Power Vmpp (NMOT) 31.30 V
Current at Maximum Power Impp (NMOT) 10.62 A
Open Circuit Voltage Voc (NMOT) 37.75 V
Short Circuit Current Isc (NMOT) 11.30 A
Bifacial Nominal Power (BNPI) 486 Wp at defined rear irradiation conditions
Nominal Operating Module 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
Module Dimensions (L x W x H) 1762 x 1134 x 30 mm
Weight 24.5 kg
Front Glass 2 mm tempered glass with anti reflection coating, high transparency
Back Glass 2 mm transparent tempered glass
Frame Black anodized aluminium alloy frame
Junction Box IP68 rated junction box with 3 bypass diodes
Connector Type MC4-Evo2A compatible (Stäubli), MC4 type
Cable Cross Section 4 mm² solar cable
Cable Length 1100 mm
Maximum Test Load (Pressure / Suction) 5400 Pa / 2400 Pa, design loads 3600 Pa / 1600 Pa
Protection Class and Fire Rating Protection Class II, Fire Class A

Certifications & Compliance

Certifications: Designed and tested to current European PV safety and performance standards, including hail resistance up to 40 mm grain diameter, with compliance suitable for installations in Germany.
Inverter Compatibility: Compatible with most modern 1500 V string and hybrid inverters that support N type bifacial modules and MC4 connectors. Always verify string design, current limits, and voltage windows with the chosen inverter datasheet.
Environmental: Glass glass construction with IP68 junction box supports outdoor operation in harsh climates, including high humidity, snow, wind, and dust exposure when installed according to the official guidelines.
Warranty: 30 year limited power warranty with first year performance at 99 percent of rated power and 0.42 percent annual degradation thereafter, guaranteeing at least 87.4 percent output in year thirty. Product workmanship warranty is provided by SENEC in line with the SENEC.Solar 440–460N DGT G4 warranty terms.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

Customer Reviews

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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.

SENEC SENEC 440 440W N-Type TOPCon Bifacial Solar Panel

Model SENEC 440 | N-Type TOPCon Half-Cell | 108 Half-Cell | Bifacial | 1500V System Voltage

440 W
Max Power Output
22 %
Module Efficiency
N-Type
N-Type TOPCon

Product Overview

The SENEC 440 N-Type TOPCon bifacial solar panel is engineered for high performance and long term reliability. With a rated output of 440 watts and up to 22 percent module efficiency, this module turns limited roof or ground space into dependable clean energy. Its N-Type TOPCon half cell architecture delivers improved low light behaviour and reduced degradation compared with conventional P type modules. The bifacial design can harvest additional energy from reflected light, which increases yield on bright surfaces and professional mounting systems. This SENEC 440 solar panel is designed for residential, commercial, and small industrial projects where efficiency, durability, and German backed engineering matter. The robust glass glass construction, IP68 junction box, and anodized aluminium frame support installations in demanding European climates. Strong warranties on product and power output offer peace of mind for installers and system owners over the full system lifetime.

Key Benefits

High power density for constrained roofs: A maximum power rating of 440 watts and 22 percent efficiency enable more energy from each square meter. This helps reach project yield targets even when roof space or mounting area is limited.

Advanced N-Type TOPCon cell technology: N type cells offer lower degradation and better temperature behaviour than many standard PERC designs. This means more stable output and improved long term performance across the 30 year power warranty period.

Bifacial energy gain: The glass glass bifacial construction can capture light on both front and rear sides. On bright or reflective surfaces, this can increase effective power generation and improve system profitability over time.

Robust build for harsh environments: Tempered glass with anti reflection coating, an IP68 junction box, and a black anodized aluminium frame support reliable operation. The module is tested for high mechanical loads and is suitable for demanding European weather conditions.

Long term warranty protection: A 30 year limited power warranty with only 0.42 percent annual degradation ensures at least 87.4 percent output in year thirty. This supports accurate financial modelling and long term investment planning for solar projects.

How It Works

The SENEC 440 solar panel converts sunlight into usable electrical energy using high efficiency N type TOPCon solar cells. Each half cut cell is wired in an optimized layout to reduce resistive losses and improve shade tolerance. When sunlight hits the front glass, photons are absorbed by the N type cells and freed electrons create direct current power. The bifacial glass glass design also allows light to reach the rear cell surfaces, so reflected and diffuse light contributes to additional output. The DC energy flows through factory fitted MC4 compatible connectors to an inverter, which converts it to AC for household or commercial loads. Smart system design, including proper tilt, orientation, and mounting height, helps the module achieve its rated performance within real world conditions.

N-Type TOPCon cell conversion: Inside the module, N type TOPCon cells use a passivated contact structure to minimize electron recombination losses. This allows more of the captured sunlight to be converted into electrical energy instead of heat. Because N type silicon has low susceptibility to light induced degradation, the initial power level is maintained more effectively during the first years of operation.

Half-cut and bifacial design synergy: The cells are cut into halves and arranged to reduce the current in each string, which lowers resistive losses. This layout, combined with bifacial glass glass construction, supports better shade behaviour and improved yield from indirect light. The rear side can harvest energy from surrounding surfaces like light gravel, white membranes, or snow, thereby raising total system output.

From DC generation to usable AC power: Once DC power is produced at the module, it is safely carried through 4 mm² solar cables and MC4 connectors. The power is then routed to a compatible string or hybrid inverter, which manages maximum power point tracking using the Vmpp and Impp values. The inverter converts the DC into grid quality AC electricity, ready for on site consumption or export, while monitoring voltage and current within the panel’s rated limits.

Technical Specifications

Brand SENEC GmbH
Model SENEC.Solar 440–460N DGT G4 (440 W variant)
Cell Technology N-Type TOPCon half-cell, monocrystalline
Cell Size 182 x 187 mm (full cell, cut into halves)
Technology Type Bifacial glass-glass, monocrystalline TOPCon
Nominal Power (STC) 440 Wp
Power Tolerance -3 % to +3 % (datasheet sorting 0 to +5 W)
Module Efficiency (STC) 22.0 %
Voltage at Maximum Power Vmpp (STC) 33.51 V
Current at Maximum Power Impp (STC) 13.13 A
Open Circuit Voltage Voc (STC) 39.85 V
Short Circuit Current Isc (STC) 14.03 A
Nominal Power (NMOT) 331 Wp
Voltage at Maximum Power Vmpp (NMOT) 31.30 V
Current at Maximum Power Impp (NMOT) 10.62 A
Open Circuit Voltage Voc (NMOT) 37.75 V
Short Circuit Current Isc (NMOT) 11.30 A
Bifacial Nominal Power (BNPI) 486 Wp at defined rear irradiation conditions
Nominal Operating Module 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
Module Dimensions (L x W x H) 1762 x 1134 x 30 mm
Weight 24.5 kg
Front Glass 2 mm tempered glass with anti reflection coating, high transparency
Back Glass 2 mm transparent tempered glass
Frame Black anodized aluminium alloy frame
Junction Box IP68 rated junction box with 3 bypass diodes
Connector Type MC4-Evo2A compatible (Stäubli), MC4 type
Cable Cross Section 4 mm² solar cable
Cable Length 1100 mm
Maximum Test Load (Pressure / Suction) 5400 Pa / 2400 Pa, design loads 3600 Pa / 1600 Pa
Protection Class and Fire Rating Protection Class II, Fire Class A

Certifications & Compliance

Certifications: Designed and tested to current European PV safety and performance standards, including hail resistance up to 40 mm grain diameter, with compliance suitable for installations in Germany.
Inverter Compatibility: Compatible with most modern 1500 V string and hybrid inverters that support N type bifacial modules and MC4 connectors. Always verify string design, current limits, and voltage windows with the chosen inverter datasheet.
Environmental: Glass glass construction with IP68 junction box supports outdoor operation in harsh climates, including high humidity, snow, wind, and dust exposure when installed according to the official guidelines.
Warranty: 30 year limited power warranty with first year performance at 99 percent of rated power and 0.42 percent annual degradation thereafter, guaranteeing at least 87.4 percent output in year thirty. Product workmanship warranty is provided by SENEC in line with the SENEC.Solar 440–460N DGT G4 warranty terms.

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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