Professionalism and commitment in the field of photovoltaic testing

The photovoltaic industry has stepped into the key stage of “quality competition”, in this period full of challenges and opportunities, Zealwe Tech has always adhered to the mission of “PV lab turnkey solution for IEC61215/IEC61730” to create PV lab turnkey solutions for global customers in compliance with IEC61215 and IEC61730 standards.

Since its establishment in 2012, Zealwe has been working hard all the way, won the trust and cooperation of JinkoSolar, LONGi, Trina and other head enterprises, as well as RETC (USA), TATA (India) and ERDA (India), and international and domestic authoritative laboratories such as Cognizant, NOA (Shanghai), and TTL in Jiaxing, etc. Zealwe has successfully delivered a large number of large-scale laboratory projects and harvested super-high customer satisfaction, so what do you rely on behind the scenes? What is the “hard core” strength behind these projects?

The answer, hidden in the company's 5 benchmark projects ......

I. Professional Strength: Challenging Industry Problems

01

Technological breakthrough:

Innovative technology to meet the demanding testing needs

In the photovoltaic laboratory project of Changzhou Academy of Construction Sciences, Zealwe team faced the challenge of testing the stability of photovoltaic modules in a large temperature difference environment from 15℃ to 80℃, and it was difficult for the traditional equipment to meet the requirement of ±1℃ surface temperature control accuracy.

For this reason, Zealwe Tech, with its strong R&D strength, launched the Panfile temperature simulator. The simulator integrates PID intelligent temperature control system and strong air circulation technology, realizing a temperature resolution of 0.1℃, and the surface temperature fluctuation of the components within 5 seconds after the door is opened is <0.5℃.

This technology provides strong data support for the IEC 61215/IEC61730 standard certification of the Changzhou Academy of Construction Sciences laboratory, ensuring that the laboratory can accurately test the performance of PV modules, and also effectively improve the testing efficiency, which has become a key technical support for the success of the project.

02

Cross-Disciplinary Integration:

Multidisciplinary synergy to cope with complex projects

The Luoyang National Photovoltaic Quality Inspection Center project was a large-scale, heavy-duty project that required the coordination of nearly 200 pieces of equipment within 100 days, involving 26 functional rooms and multiple technical fields.

Zealwe team used the “3D modeling + modular division of labor” system to identify problems in advance. At the same time, the team disassembled the installation process into 3 modules: mechanical positioning, electrical wiring, and software tuning, and 8 senior engineers collaborated across fields to realize “0 rework” delivery, successfully completing a 10 million laboratory turnkey project, fully demonstrating its strong industry chain technology integration capability.

03

Patent achievements help professional development

With 9 patents, Zealwe Tech has made remarkable achievements in the research and development of PV testing equipment.

The large-area steady-state simulator purchased by the Renewable Energy Testing Center (RETC) of the United States reflects the technical advantages of Zealwe Tech.

The core indexes of Zealwe Tech's steady state simulator, such as spectral mismatch and irradiation inhomogeneity, are up to BBA level (the higher level in the industry), which meets the relevant test requirements of IEC61215 standard, and is applicable to the light decay and aging test of a variety of cells and modules. Its “l(fā)ocal temperature control technology” (temperature control range 30 - 90℃, uniformity ±3℃) provides more accurate temperature control for different testing scenarios, which has been recognized by international customers and has a greater technological influence in the industry.

Second, integrity-based: commitment is responsibility, performance is reputation

01

Exceeding Expectation Delivery:

Efficient Execution under Extreme Duration

The Changzhou Academy of Construction Sciences project required the completion of the arduous task from equipment customization to personnel training and CNAS accreditation within 90 days, far exceeding the industry average cycle.

Zealwe team formulated the “Equipment Prioritization Matrix”, arrived in 5 batches, increased the utilization rate of the site by more than 60%, and established a closed-loop mechanism of “Discovery - Evaluation - Resolution - Verification”.

Finally, the lab passed the CNAS on-site accreditation in December 2024, and the customer praised: “The response speed and professionalism of Zealwe Tech team far exceeded the expectation, and the details can stand up to scrutiny!”

02

Risk-taking:

Flexible Response to Guarantee Project Advancement

In Datang New Energy's laboratory project, the equipment could not be moved in the traditional way because the floor had been paved with floor leather.

Zealwe technical team adopted the bottom seamless steel pipe rolling panning method, shifted in sections and monitored the whole process to ensure that there was no indentation residue on the ground protection layer.

When the commissioning was hindered by the delay of the water, electricity and gas supporting projects, the team set up a special coordination group to prioritize the completion of the independent commissioning of key equipment to reduce the impact of the overall delay, ensuring the smooth progress of the project and practicing the service concept of good faith performance.

03

Data Transparency:

Enhancing project transparency and control

In the Luoyang project, Zealwe Tech team kept detailed records of equipment arrival, commissioning progress, metering requirements and other information, covering data for 26 rooms.

The Changzhou Academy of Building Sciences project has daily updates on the handling of problems, and the Datang project has training feedback forms that detail the level of mastery of each operator.

These initiatives make the project information transparent and convenient for customers to understand the project progress, which has been highly recognized by customers.

III. Core Competitiveness: Systematized Services

01

Process standardization:

Guarantee project quality and standardization

Zealwe Tech implements the “four-step working method” in all projects, i.e., identifying problems, evaluating impacts, solving problems, and verifying the closed loop.

In the Changzhou Academy of Building Sciences project, the system effectively controlled equipment installation and software intermodulation. For example, the Luoyang project used the “construction safety checklist” to ensure zero accidents in the lifting and wiring of 200 pieces of equipment, providing the industry with standardized operational examples.

02

Emergency Response Mechanism:

Rapid Response to Solve Customer Problems

In the European customer's project, even though the remote debugging of the equipment had reached the standard, the engineers still flew to the site after a 22-hour flight.

They entered the laboratory at 7:45 the day after landing to complete a number of in-depth optimization work, demonstrating the great importance attached to customer needs.

Domestic projects come standard with “7×24-hour online operation and maintenance”, 2-hour high-speed response for key accessories, timely resolution of customer problems, and reliable service guarantee for customers.

03

Long-term service:

Continuous follow-up to help customers develop

Zealwe Tech provides a “three-tier training system” for each project, and develops different training programs for technicians, operators and management to meet the diverse needs of customers.

After the delivery of the Datang New Energy project, Zealwe Tech provides 3 months of free operation and maintenance support, establishes equipment operation files, and promises to respond to repair reports within 24 hours.

The U.S. RETC project maintains quarterly return visits, optimizes the software interface according to customer feedback, realizes the transformation from “supplier” to “l(fā)ong-term technical partner”, and provides customers with continuous technical support and services.

Fourth, customer testimonials: the trust code behind the word of mouth

PV laboratory of Changzhou Academy of Construction Sciences evaluated Zealwe Tech: “The response speed and professionalism of Zealwe team far exceeded the expectations, and the details completely stood up to scrutiny!”

The person in charge of Datang New Energy Laboratory said, "The whole process of the project was executed efficiently, technically in place and responsive; the documents are complete, detailed and easy to use and access. Overall satisfaction!"

The recognition of many customers reflects the good reputation of Zealwe Tech in the industry.

As can be seen from a number of benchmark projects, Zealwe Tech has established a good reputation in the field of photovoltaic testing by virtue of its professional technology, honest service and reliable guarantee.

In the future, Zealwe Tech will continue to uphold the concept of “Professional, Honest and Reliable” to provide global customers with better quality products and services, and help the development of PV industry.