Your Trusted Solar Panel Supplier in China
★ Large Stock of Tier 1 Solar Panels
★ 2%-3% Below Market Rate
★ Fastest Delivery in 3 Working Days
Hot-selling PV Panels
Why Choose Us as Your Solar Supplier?
Multi-Brand Sourcing
High-performance solar modules from Jinko, Longi, Trina, JA, Canadian Solar, etc., available in various sizes.
W/H Audit Support
Welcome to inspect your solar panel order before shipping. On-site or video inspection options available.
Low Wholesale Price
Cost-optimized solar products for bulk orders. 2-3% Off Market Rate. Reinvest Saved Budget in Extra Panels.
Flexible MOQ
Start your first order with just 1 pallet (perfect for trial orders or small orders) or 1 full 20HQ container.
Fast Delivery Service
Self-owned warehouses stocked with 80K+ ready-to-ship solar modules. Fastest delivery in 3 working days.
Quality Assurance
Quality guarantee documents, such as an IEC test report, can be provided based on different product types.
Looking for cost-effective solar panels?
You can contact us in any way that is convenient for you. We are available 24/7 via WhatsApp, email, or telephone.
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Latest Successful Cases in Different Solar PV Applications
Mountain Slope PV Power Station Project
Installed Capacity: 4.32 MW
Industrial Rooftop Solar Power Plant Project
Installed Capacity: 2.75 MW
Solar Farm Power Generation Project
Installed Capacity: 5 MW
Solar Panel Certifications Support Global Exports
What Our Customers Say About Us
Who Are We?
A Trusted B2B Supplier in the Global Photovoltaic Industry.
Since entering the solar market in 2017, JY Solar Panel has been exporting high-efficiency photovoltaic modules from leading brands like Jinko, Longi, Trina, JA, and Canadian Solar to over 30 countries worldwide.
With a strong focus on reliable products, competitive pricing, and fast fulfillment, we support utility-scale, commercial & industrial, and residential solar projects with ease. Whether you’re a distributor, installer, or project developer, JY Solar Panel offers dependable solar panel solutions tailored to your business.
Solar PV FAQs
What is the lifespan of a solar panel?
Most solar panels last 25 to 30 years with minimal degradation in performance. High-quality brands like Jinko and LONGi ensure durability and long-term energy production.
What is the conversion efficiency of solar panels?
The conversion efficiency of modern solar panels ranges from 18% to 23%, depending on the technology. Top-tier panels from brands like LONGi and Jinko Solar often lead in efficiency.
Can solar panels work without sun?
Yes, solar panels still generate electricity on cloudy days or in indirect sunlight, though at reduced output. They do not work at night without energy storage like batteries.
What is the panel efficiency on a cloudy day?
On cloudy days, solar panel output drops to about 10%–25% of peak performance, depending on cloud density and panel quality. High-efficiency panels like those from LONGi or Jinko perform better under low-light conditions.
How many solar panels do l need?
The number of solar panels you need depends on your energy consumption, location, and panel wattage. On average, a 5kW system requires around 9 panels rated at 550W each.
What are the different types of solar panels?
There are three main types: monocrystalline, polycrystalline, and thin-film. Monocrystalline panels offer highest efficiency and sleek design, ideal for rooftops and residential use.
Which is better, Jinko or Longi Solar?
Both Jinko and LONGi are top-tier solar panel manufacturers. LONGi is known for high-efficiency monocrystalline technology, while Jinko offers excellent value and performance. The best choice depends on your specific project needs.
Which is better, single glass or double glass solar panels?
Bifacial (double glass) solar panels can produce up to 30% more energy by capturing sunlight from both sides. They are ideal for commercial projects or high-reflective surfaces, while monofacial panels are more common in residential settings.