Hyundai 645W 156 Half-Cell 1500V TOPCon Silver Bifacial Solar Panel

Hyundai 645W 156 Half-Cell 1500V TOPCon Silver Bifacial Solar Panel

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$230.69
$230.69
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Hyundai 645W 156 Half-Cell 1500V TOPCon Silver Bifacial Solar Panel

Hyundai

Hyundai 645W 156 Half-Cell 1500V TOPCon Silver Bifacial Solar Panel

$230.69
Hyundai 645W 156 Half-Cell 1500V TOPCon Silver Bifacial Solar Panel

Hyundai

Hyundai 645W 156 Half-Cell 1500V TOPCon Silver Bifacial Solar Panel

$230.69
  • Description
  • Why Buy From Us

Hyundai 645W 156 Half-Cell 1500V TOPCon Silver Bifacial Solar Panel

 

The HD HYUNDAI ENERGY SOLUTIONS CO., LTD. HiS-T645NJ is a 645W monocrystalline solar module with a rated efficiency of 23.37%, placing it among the highest-efficiency panels in our database. At its physical size it delivers roughly 234 watts per square metre, a high power density that suits roofs where usable area is limited. Its power temperature coefficient of -0.294%/°C is better than the ~-0.35%/°C class average, meaning it holds output better on hot rooftops. Under normal operating cell temperature (45.12°C NOCT), real-world output is closer to 607W — about 5.9% below the lab STC rating, which is normal and useful for sizing your array against summer conditions. For system design, its open-circuit voltage (Voc) of 58V and max-power voltage (Vmp) of 47.9V determine how many panels can be safely wired in series within your inverter's voltage window. It carries a 30-year warranty.

Power Density

234 W/m² — High for its class. Higher density means more power from the same roof area, which matters most when space is tight.

Real-World Output (NOCT)

Rated 645W at lab STC, but about 607W at 45.12°C operating temperature (~5.9% lower). Use the NOCT figure when estimating hot-weather production.

Heat Tolerance

Temperature coefficient -0.294%/°C vs a ~-0.35%/°C class average. Better than average — strong hot-climate choice.

String Sizing

Voc 58V, Vmp 47.9V. Divide your inverter's max input voltage by the cold-weather-adjusted Voc to find the maximum panels per string.

Why Choose Green Vista Living


At Green Vista Living, we’re passionate about providing top-quality renewable energy and eco-friendly products that not only enhance your life but also help protect the planet. We’ve built our business with one mission in mind: to be the go-to destination for renewable energy solutions, outdoor gear, and off-grid supplies. When you shop with us, you’re not just getting innovative products—you’re joining a community that’s committed to sustainability.

We Put Our Customers First


As a small, dedicated team, we care deeply about your experience. Unlike large, faceless online companies, Green Vista Living offers a personal touch in everything we do. We're here for you from start to finish—whether you need product advice, support after a purchase, or just have questions. Our knowledgeable customer service team is always just a phone call or email away, ready to assist you in any way possible.

We Share Your Passion for the Planet


Our love for the outdoors and sustainable living runs deep. Most of our team hails from the mountains of Colorado, where renewable energy and the environment are part of daily life. So when you call Green Vista Living, you’ll speak directly with an expert who understands both the technical side of renewable products and the lifestyle they support. Whether you’re looking for solar generators, EV chargers, or any of our eco-friendly offerings, you can trust us to guide you with expertise and passion.

Trusted Industry Experts


Our close partnerships with the best brands in renewable energy and outdoor gear give us insider knowledge that you won’t find anywhere else. We’ve taken the time to carefully select products that stand out for their quality and reliability. At Green Vista Living, we believe in understanding our products inside and out so that we can help you make the right choice with confidence.

More Reasons to Love Green Vista Living


Price Match Guarantee: Thanks to our partnerships, we offer the best prices around. If you find a better deal, we’ll refund the difference.


Free Shipping: We offer free shipping on most orders to the lower 48 U.S. states, making your shopping experience even easier.


100% Secure Ordering: Our site uses SSL Encryption technology to keep your payment and personal information safe and secure.


Volume Discounts: For large orders, we’re happy to provide special pricing—just reach out for a custom quote.


Authorized Dealer: As an authorized dealer for all our brands, you’ll receive full manufacturer warranties with every order.


At Green Vista Living, we aim to make your renewable energy and outdoor experience as seamless and enjoyable as possible. With our unmatched customer service, expertise, and dedication to quality, you can shop with confidence, knowing you’re supporting a company that’s as committed to the planet as you are.

Frequently Asked Questions

Yes! We provide free and fast shipping on MOST orders within the continental United States. However, some specific brands and items will require a quote. You can live chat or call us for a quote
Most orders ship out within 1–2 business days and arrive within 3–5 business days depending on your location.
We offer easy returns as long as your item meets the conditions outlined in our Return Policy. Items must be unused, in original packaging, and returned within the specified return window.
Absolutely! Our in-house product experts are here to help. Live chat or call us 513-743-829 for personalized advice before or after your purchase.
Yes. All products include any applicable manufacturer warranties, and we’ll help you handle any warranty claims if needed.
Yes, we only sell 100% authentic, brand-new products, sourced directly from our manufacturers or authorized distributors.

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Feedback From Our Customers

At Green Vista Living, we pride ourselves on delivering top-quality products and exceptional service to solar professionals and homeowners alike. Here's what our customers have to say about their experiences with us.

Kevin Leary
May 18, 2025
★★★★★

Incredible Tech Support from Anees of Green Vista Living. Exceptional service and went above and beyond on every question.

Bryan Cunningham
Off grid Kit • Dec 21, 2025
★★★★★

Shipment was slow due to high demand, but the team kept me informed and ensured everything arrived properly.

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