DintoSolar
OUR COMPANY
ABOUT DINTO SOLAR
Dinto Solar Co., Ltd. (Dinto Solar) is a China National-Level High-Tech Enterprise specializing in the R&D, manufacturing, and commercialization of ultra-high-efficiency n-type heterojunction (HJT) solar cells and modules. Established in 2017 by the Central Research Institute of State Power Investment Corporation (SPIC)—the world’s largest photovoltaic, renewable, and clean energy company—Dinto Solar is dedicated to accelerating the industrialization of HJT technology and driving innovation across the global solar industry.
15 GW
Planned Annual HJT Capacity
100+
HJT Solar Projects
760 W
Module Champion Power
24.47%
Module Champion Efficiency
Driven to lead in heterojunction technology, we deliver a full spectrum of
high-quality HJT cells 
and modules 
,
powering reliable and sustainable solar 
solutions worldwide. 
and modules ,
powering reliable and sustainable solar solutions worldwide. 1 / 3
R&D STRENGTH
R&D STRENGTH
Dinto Solar maintains long-term investment in research and development, strengthens industry–academia–research collaboration, and advances technological innovation to enhance the efficiency of heterojunction solar cells and modules. The company has achieved internationally leading patented technologies and pioneered the independent, large-scale production of copper-metalized heterojunction (C-HJT) modules, accelerating the commercialization of high-efficiency products. Meanwhile, Dinto Solar brings together top-tier HJT talent to build a professional R&D team led by industry experts, providing strong support for long-term, high-quality growth.
60 million (US$) +
Cumulative HJT R&D investment
(Data as of 2025)
25% +
R&D investment
(% of revenue)
(% of revenue)
200 +
Talents in HJT field
15 years +
Team members' average
experience in top solar companies
experience in top solar companies
100+
High-quality invention patents
30+
Proprietary technologies
HJT Technology
ADVANCED HJT TECHNOLOGY, DELIVERING SUSTAINABLE SOLAR VALUE
HIGHER EFFICIECNY
MORE POWER GENERATION
HIGHER RELIABILITY
LOWER CARBON FOOTPRINT
-0.24%/°C
Industry Leading Temperature Coefficient
Hot Climate
SUNRISE
NOON
SUNSET
Average daily power generation
increased by over 3%
increased by over 3%
+2~5%
Higher Bifacial Energy Yield Gain
TOPCon
80%
DintoSolar HJT
90%
Direct Sunlight
Diffuse Sunlight On Back Of Panel
Sunlight Reflected Off Ground To Back Of Panel
≤9.7%
Lower Module Degradation
≤1%
degradation in the first year
≥90.3%
of power maintained after 30 yrs
99%
91.8%
90.3%
Superior Low-Light Performance
HJT modules deliver excellent short-wavelength response and high open-circuit voltage (~750 mV, 20–30 mV higher than other technologies). Interface passivation and symmetric structure enable all-direction light capture, extending daily generation and boosting lifetime energy yield.
Light Conversion Film
The HJT module is encapsulated with light conversion film
that converts UV light (<380 nm) to blue light (~400-550 nm).
This feature significantly enhances the module's UV resistance.
that converts UV light (<380 nm) to blue light (~400-550 nm).
This feature significantly enhances the module's UV resistance.
UV180 <3%
Sample 1
Sample 2
Sample 3
Sample 4
IR
UV
Light Conversion Film
Solar Cells
4-Steps
HJT technology requires only four core process steps, significantly fewer than the more than ten steps required for TOPCon and BC technologies. This results in higher yield, lower energy consumption, and improved process controllability.
HJT / C-HJT
4 Steps
TOPCon / BC
10+ Steps
Texturing & Cleaning
PECVD
PVD
Metallization Patterning
Low-Temperature Processing
All key production steps are completed at temperatures below 200°C, enabling the use of thinner silicon wafers while minimizing thermal damage and high-temperature diffusion, thereby substantially reducing silicon material consumption, overall energy costs, and the carbon footprint.
200°C
HJT
800°C
Other Solar Cells
PV SOLUTIONS
FIND YOUR HJT SOLAR SOLUTION
01
Utility-Scale PV
Utility-scale solar plants are turning deserts, plains, and mountains into highly efficient "green energy factories." Dinto Solar’s HJT modules stand out with an exceptional temperature coefficient of -0.24%/°C and excellent low-light performance, ensuring high energy yield even in challenging conditions. Their ultra-high-power output helps cut down on BOS costs and lowers LCOE, boosting IRR of the solar projects. With some of the lowest costs per kWh in the industry, our modules are crucial in driving the energy transition and supporting large-scale ecological restoration in desert and barren land projects.
02
Distributed PV
Dinto Solar’s distributed energy solutions feature compact, efficient modules with high investment returns, emerging as a model for supporting energy transition and helping businesses and households reduce costs and increase efficiency.
03
Offshore PV
Compared to traditional land-based PV, offshore solar projects take advantage of vast water surfaces and benefit from enhanced sunlight reflection, addressing land scarcity while boosting energy efficiency. However, they must withstand challenges such as high temperatures, humidity, salinity, strong winds, and extreme weather conditions.
Dinto Solar’s offshore HJT modules are engineered with high-reliability encapsulation, including PIB sealing and corrosion-resistant glasses. Along with the inherent benefits of HJT technology, such as high bifaciality and superior low-light performance, our offshore solutions provide stable, reliable returns over a 30-year lifespan, ensuring long-term value for customers.
Dinto Solar’s offshore HJT modules are engineered with high-reliability encapsulation, including PIB sealing and corrosion-resistant glasses. Along with the inherent benefits of HJT technology, such as high bifaciality and superior low-light performance, our offshore solutions provide stable, reliable returns over a 30-year lifespan, ensuring long-term value for customers.
04
Vertical PV
Dinto Solar’s HJT modules, with bifaciality up to 95%, offer substantial rear-side energy gains. Vertical modules feature a unique dual-peak generation curve that aligns perfectly with peak-valley electricity pricing, boosting plant revenues and easing grid load during peak hours. In markets with high morning/evening tariffs and even negative midday pricing, vertical PV solutions maximize profitability for customers.
Beyond performance, our vertical modules optimize land use and seamlessly integrate with agriculture, buildings, and transportation. They also mitigate issues such as snow and dust accumulation, reducing O&M costs and further enhancing long-term value.
Beyond performance, our vertical modules optimize land use and seamlessly integrate with agriculture, buildings, and transportation. They also mitigate issues such as snow and dust accumulation, reducing O&M costs and further enhancing long-term value.
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PRODUCTS
WE PROVIDE HIGH-QUALITY HJT PRODUCTS
NEWS & EVENTS
LATEST NEWS FROM US
SERVICE & SUPPORT
A BETTER FUTURE STARTS WITH US
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