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HT Solar 420

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HT Solar HT54-18X(N) 420–440W TOPCon Bifacial Monocrystalline Solar Panel

Model HT54-18X(N) | N-Type TOPCon | 108 Half-Cell 182×91 mm | Bifacial | 1500V System Voltage

420–440W

Max Power Output Range

Up to 23.0%

Module Efficiency

108 Cells

N-Type TOPCon

Product Overview

The HT Solar 420 series is a high performance N-type TOPCon bifacial monocrystalline solar panel designed for long term energy generation. It combines advanced cell technology with a robust single glass construction optimised for rooftop and ground mounted systems. With a rated power range from 420 to 440 watts and module efficiency up to 23.0 percent, this panel helps maximise output from limited roof space. The half cut cell layout reduces internal resistance and improves heat dissipation. This HT Solar 420 module also offers excellent low light response, making it suitable for residential, commercial and small utility projects where reliable yield is essential. A 30 year power warranty and extended product cover give additional peace of mind for long term investments in solar power.

Key Benefits

High power density for limited roof space: The module delivers up to 440 watts in a compact 1722 by 1134 millimetre footprint. This allows more installed power per square metre on rooftops and carports.

Advanced N-type TOPCon reliability: N-type TOPCon cells reduce light induced degradation and deliver stable performance over time. This technology also improves low light response and overall energy yield.

Bifacial energy gain on suitable surfaces: The bifacial design can harvest reflected light from the rear side when installed above bright roofs or ground. This can increase total system energy generation compared with mono facial panels.

Strong long term warranty coverage: A 12 year product warranty is combined with a 30 year power warranty. After 30 years, power output is guaranteed at 87.4 percent of the original nameplate rating.

Robust construction for demanding climates: The panel operates between minus 40 and plus 85 degrees Celsius. An IP68 junction box, 2 millimetre glass and anodised aluminium frame help protect against moisture, dust and mechanical stress.

How It Works

This TOPCon bifacial monocrystalline panel converts sunlight into electricity using high efficiency N-type cells. Light hitting the front glass surface is absorbed by the 108 half cut cells and transformed into direct current power. Additional light reflected from the roof or ground can enter the rear side, where the bifacial structure captures extra photons and increases total energy harvest. The cells are wired to optimise current collection while keeping internal resistance losses low. Power is delivered through MC4 compatible connectors to your inverter, which converts the direct current into usable alternating current for on site consumption or export to the grid. Temperature coefficients are tightly controlled, so the module maintains strong performance even in hotter conditions common in Australian and similar climates.

Half cut N-type TOPCon cells: Each cell is physically divided into two halves to reduce current in each path. Lower current reduces resistive losses and improves shade tolerance across the module strings. N-type TOPCon passivates the cell surfaces, limiting recombination losses and enhancing efficiency.

Bifacial light capture: The bifacial configuration allows the rear side to absorb light reflected from surrounding surfaces. When installed above light coloured roofs, concrete or reflective membranes, rear side gain can significantly raise annual energy yield. This design is especially useful for ground mounts and elevated commercial arrays.

Thermal management and low degradation: Improved heat dissipation is achieved through the half cut layout and optimised cell interconnection. A low Pmax temperature coefficient of around minus 0.3 percent per degree Celsius limits performance loss during hot days. The annual power degradation rate is only 0.42 percent, supporting long term, stable generation.

Technical Specifications

Manufacturer	Tangshan Haitai New Energy Technology Co., Ltd. (HT Solar)
Country of Origin	China
Model Number	HT54-18X(N) PANDA
Cell Technology	N-type TOPCon, half cut monocrystalline
Cell Size	182 × 91 mm
Number of Cells	108
Panel Type	Bifacial monocrystalline single glass module
Power Class Range (STC)	430 W, 435 W, 440 W, 445 W, 450 W
Typical Nominal Power Variant	420 Wp front side rating with bifacial gain potential
Module Efficiency Range (STC)	21.51 % to 23.0 %
Maximum Power (Pmax) at STC – Example 430W Type	Pmax 430 W, Vmpp 31.9 V, Impp 13.50 A, Voc 38.3 V, Isc 14.23 A
Maximum Power (Pmax) – 420 W Variant	Pmax 420 Wp, Vmpp 31.65 V, Impp 13.28 A, Voc 38.2 V, Isc 13.74 A
Power (Pmax) at NMOT – 420 W Class	Approximate Pmax 316–335 W, Vmpp around 30–31 V, Impp around 10.6–10.9 A
Open Circuit Voltage Range (STC)	Approx. 38.2–38.8 V, depending on power class
Short Circuit Current Range (STC)	Approx. 13.74–14.55 A, depending on power class
Power, Voc, Isc Measurement Tolerance	Pmax ±3 %, Voc ±5 %, Isc ±5 %
Maximum System Voltage	1500 V DC (IEC)
Maximum Series Fuse Rating	30 A
Nominal Module Operating Temperature (NMOT)	41 ± 3 °C (typical), specification also lists 43 ± 2 °C reference
Operating Temperature Range	-40 °C to +85 °C
Temperature Coefficient of Pmax	-0.30 % / °C to -0.31 % / °C
Temperature Coefficient of Voc	-0.25 % / °C
Temperature Coefficient of Isc	+0.046 % / °C
Degradation and Power Warranty	0.42 % annual power degradation, 30 year power warranty to 87.4 % of initial output
Module Dimensions (H × W × D)	1722 × 1134 × 30 mm
Weight	24 kg
Front Glass	2 mm tempered glass
Frame	Black anodised aluminium frame
Junction Box Protection Class	IP68 rated junction box
Connector Type	MC4 compatible connectors
Cable Cross Section	4 mm² solar cable

Certifications & Compliance

Certifications: IEC 61215 and IEC 61730 safety and performance standards, plus ISO 9001, ISO 14001, ISO 45001 and SA8000 quality, environmental and occupational safety systems.
Inverter Compatibility: Compatible with most modern string and hybrid inverters operating up to 1500 V DC, using standard MC4 style connectors and typical I-V ranges for 430–450 watt class modules.
Environmental: Designed to withstand 5400 Pa positive and 2400 Pa negative mechanical loads and tested with 25 mm hail at 23 m per second, suitable for harsh wind, snow and hail conditions.
Warranty: 12 year product warranty for materials and workmanship, extended to 30 years for power performance with a guaranteed maximum 0.42 percent annual degradation to 87.4 percent at year thirty.

Documentation

Product Datasheet (PDF)

● Available | Contact us for lead time and pricing

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

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?

HT Solar HT54-18X(N) 420–440W TOPCon Bifacial Monocrystalline Solar Panel

Model HT54-18X(N) | N-Type TOPCon | 108 Half-Cell 182×91 mm | Bifacial | 1500V System Voltage

420–440W

Max Power Output Range

Up to 23.0%

Module Efficiency

108 Cells

N-Type TOPCon

Product Overview

Key Benefits

Strong long term warranty coverage: A 12 year product warranty is combined with a 30 year power warranty. After 30 years, power output is guaranteed at 87.4 percent of the original nameplate rating.

How It Works

Technical Specifications

Manufacturer	Tangshan Haitai New Energy Technology Co., Ltd. (HT Solar)
Country of Origin	China
Model Number	HT54-18X(N) PANDA
Cell Technology	N-type TOPCon, half cut monocrystalline
Cell Size	182 × 91 mm
Number of Cells	108
Panel Type	Bifacial monocrystalline single glass module
Power Class Range (STC)	430 W, 435 W, 440 W, 445 W, 450 W
Typical Nominal Power Variant	420 Wp front side rating with bifacial gain potential
Module Efficiency Range (STC)	21.51 % to 23.0 %
Maximum Power (Pmax) at STC – Example 430W Type	Pmax 430 W, Vmpp 31.9 V, Impp 13.50 A, Voc 38.3 V, Isc 14.23 A
Maximum Power (Pmax) – 420 W Variant	Pmax 420 Wp, Vmpp 31.65 V, Impp 13.28 A, Voc 38.2 V, Isc 13.74 A
Power (Pmax) at NMOT – 420 W Class	Approximate Pmax 316–335 W, Vmpp around 30–31 V, Impp around 10.6–10.9 A
Open Circuit Voltage Range (STC)	Approx. 38.2–38.8 V, depending on power class
Short Circuit Current Range (STC)	Approx. 13.74–14.55 A, depending on power class
Power, Voc, Isc Measurement Tolerance	Pmax ±3 %, Voc ±5 %, Isc ±5 %
Maximum System Voltage	1500 V DC (IEC)
Maximum Series Fuse Rating	30 A
Nominal Module Operating Temperature (NMOT)	41 ± 3 °C (typical), specification also lists 43 ± 2 °C reference
Operating Temperature Range	-40 °C to +85 °C
Temperature Coefficient of Pmax	-0.30 % / °C to -0.31 % / °C
Temperature Coefficient of Voc	-0.25 % / °C
Temperature Coefficient of Isc	+0.046 % / °C
Degradation and Power Warranty	0.42 % annual power degradation, 30 year power warranty to 87.4 % of initial output
Module Dimensions (H × W × D)	1722 × 1134 × 30 mm
Weight	24 kg
Front Glass	2 mm tempered glass
Frame	Black anodised aluminium frame
Junction Box Protection Class	IP68 rated junction box
Connector Type	MC4 compatible connectors
Cable Cross Section	4 mm² solar cable

Certifications & Compliance

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.

Jacob B

Easy Process, Genuine Support

Patrick B

Off Grid Solar Purchase

James Martin

Highly Recommend

Brian H

Solar Kit for Mobile Work Van

Keith S

Best Tech Support

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