Osda Solar ODA645-33V-MHD
Osda Solar ODA645-33V-MHD
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Osda Solar ODA645-33V-MHD

Osda Solar ODA645-33V-MHD

Ships Direct from Manufacturer — typically leaves the dock in 3–7 business days
SKU  PES-SPS-SOL-13699
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Regular price $180.00 USD
Regular price $0.01 Sale price $180.00 USD
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Osda Solar ODA645-33V-MHD
Osda Solar ODA645-33V-MHD $180.00
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Returns are accepted within 30 days of delivery and require an RMA number. Returns of non-defective items carry a 40% restocking fee per our Refund Policy; defective, damaged-in-transit, or mis-shipped items are exempt. Special-order items are final sale.

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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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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.

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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.

Osda ODA645-33V-MHD 645W HJT Bifacial Monocrystalline Solar Panel

Model ODA645-33V-MHD | HJT Monocrystalline | 132 Half-Cell 210×105 mm | Bifacial | 1500V System Voltage

645 W
Max Power Output
20.76%
Module Efficiency
132 Cells
HJT Monocrystalline

Product Overview

The Osda ODA645-33V-MHD 645W HJT bifacial monocrystalline solar panel is engineered for high power output and reliable long term performance. This advanced module combines cutting edge heterojunction cell technology with a bifacial design to extract more energy from every ray of sunlight. It is ideal for commercial rooftops, utility scale arrays, and demanding off grid projects where maximum energy density per square meter is required. With a module efficiency up to 20.76% and a power range that extends across the ODA-132MHD series, this panel helps reduce balance of system costs and lowers the overall cost of energy. The robust construction includes an anodized aluminum frame, tempered glass with anti reflection coating, and a junction box rated up to IP68 for dependable outdoor use. Osda backs the product with a 15 year product warranty and a 30 year power warranty, ensuring long lasting value for investors, installers, and end users.

Key Benefits

High power density for modern projects: The 645W rated output allows system designers to achieve more installed capacity on limited roof or ground space. Fewer panels are needed for the same kilowatt rating, which can reduce mounting hardware, cabling, and labor costs.

Efficient bifacial energy harvest: Bifacial construction captures light from the front and rear sides of the module. This design can boost energy yield compared with standard monofacial panels, especially over reflective surfaces such as white roofs, light concrete, or snow.

Reliable long term performance: A 30 year power warranty with 84.95% rated output at the end of the period supports long term energy forecasts. Low annual degradation of 0.5% helps safeguard project returns and reduces the risk for investors and system owners.

Robust mechanical strength and protection: The anodized aluminum frame and tempered glass are engineered for demanding field conditions. Certified mechanical load performance and waterproof junction box design help the panel withstand wind, snow, dust, and moisture across diverse climates.

Flexible integration and system design: A maximum system voltage of 1500V supports long strings and lower system currents. The positive power tolerance from 0 to +3% ensures each module delivers at least its nameplate power, simplifying array design and energy yield calculations.

How It Works

This Osda HJT bifacial monocrystalline solar panel converts sunlight into usable DC electricity through high efficiency photovoltaic cells. Each of the 132 half cut cells uses heterojunction technology, where thin amorphous silicon layers surround a crystalline silicon wafer. This structure reduces recombination losses and enhances performance at higher temperatures. Light striking the front glass is absorbed by the cells and converted into electrical energy. At the same time, the rear side can capture reflected and diffuse light, increasing overall energy yield under suitable mounting conditions. The generated DC current flows through the integrated busbars into the junction box and then along the string cabling to the inverter. The inverter converts the DC energy into AC power for onsite loads or export to the utility grid. Thermal and electrical characteristics such as temperature coefficients, operating temperature range, and maximum system voltage are carefully matched to ensure stable output, even under varying weather and irradiance levels.

HJT monocrystalline cell conversion: Heterojunction cells combine crystalline silicon with thin amorphous layers on both sides of the wafer. This architecture minimizes carrier losses and provides strong performance at low irradiance and in hot conditions. As a result, the panel maintains more of its rated power output during real world operation.

Bifacial rear side energy gain: The rear side of the module is designed to absorb light reflected from the ground or mounting surface. When installed over bright or reflective materials, additional photons reach the back of the cells and are converted into extra electricity. This effect can increase total kilowatt hour yield without expanding the array footprint.

System integration and power delivery: Current and voltage at maximum power, known as Impp and Vmpp, determine how the panel behaves in a string. The 1500V system rating allows more modules to be connected in series, reducing current and therefore cable losses. The high quality junction box with multiple diodes manages string safety and mitigates mismatch from shading or localized soiling.

Technical Specifications

Brand Ningbo Osda Solar Co., Ltd.
Country of Origin China
Model Number ODA645-33V-MHD (ODA-132MHD Series)
Cell Technology HJT monocrystalline, SMBB technology
Cell Size 210 × 105 mm
Cell Count and Type 132 half cut monocrystalline cells
Module Technology Bifacial monocrystalline solar panel
Power Range (Series) 645 Wp to 670 Wp (up to 730W in ODA-132MHD range)
Maximum Power (Pmax) - Main Variant 645 Wp
Voltage at Maximum Power (Vmpp) - 645W 37.2 V
Current at Maximum Power (Impp) - 645W 17.34 A
Open Circuit Voltage (Voc) - 645W 45.0 V
Short Circuit Current (Isc) - 645W 18.44 A
Secondary Power Variant (Pmax) 488 Wp
Voltage at Maximum Power (Vmpp) - 488W 34.6 V
Current at Maximum Power (Impp) - 488W 14.11 A
Open Circuit Voltage (Voc) - 488W 42.2 V
Short Circuit Current (Isc) - 488W 14.84 A
Module Efficiency Range 20.76% to 21.56%
Nominal Module Temperature 45 ± 2 °C
Operating Temperature Range -40 °C to +85 °C
Temperature Coefficient of Pmax -0.34 % / °C
Temperature Coefficient of Voc -0.25 % / °C
Temperature Coefficient of Isc +0.04 % / °C
Maximum System Voltage 1500 V DC
Series Fuse Rating 30 A
Power Tolerance 0 to +3 %
Total Degradation after 30 Years 84.95% of initial power guaranteed
Annual Degradation Rate 0.5% per year (linear)
Panel Dimensions (H × W × D) 2384 × 1303 × 30 mm
Weight per Module 38 kg
Glass Type Tempered glass with anti reflection coating
Glass Thickness 2.0 mm
Frame Type and Color Options Anodized aluminum frame, available in silver and black
Junction Box Protection Grade IP67 / IP68, Class II safety level
Junction Box Diodes 3 bypass diodes, enhanced PID resistance
Mechanical Load Rating 2400 Pa wind load, 5400 Pa snow load

Certifications & Compliance

Certifications: IEC 61215 and IEC 61730 certified for performance and safety; manufactured in facilities audited to ISO and CE standards; enhanced mechanical load testing to 2400 Pa wind and 5400 Pa snow.
Inverter Compatibility: Compatible with most modern string and central inverters designed for 1500V DC systems; suitable for grid tied and hybrid inverters that accept high current, high power modules when wired according to manufacturer guidelines.
Environmental: Designed for harsh outdoor environments with IP67/IP68 junction box sealing, anodized frame resistant to chemical corrosion, and PID resistant cell and encapsulation materials for long term field reliability.
Warranty: 15 year limited product warranty covering materials and workmanship, plus 30 year linear power output warranty with a maximum 0.5% annual degradation and at least 84.95% of initial power guaranteed at year 30.

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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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

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