October 10, 2025

Assessing and Training the Technical Workforce for Solar Module Assembly

One of the most compelling reasons to establish a solar manufacturing facility is the promise of local employment. With organizations like the International Renewable Energy Agency (IRENA) projecting that Africa could create as many as 600,000 manufacturing jobs in the solar sector by 2030, the opportunity is vast.

For the entrepreneur or investor, however, this potential comes down to a critical question: is the local labor market prepared for the specific demands of solar module assembly? A new factory’s success depends less on the sheer number of available workers than on the ability to cultivate a team with the right technical skills and mindset. This article lays out a structured approach for business leaders to assess their local workforce and implement effective training, transforming a local labor pool into a high-performance production team.

Understanding the Workforce Requirements for a Solar Factory

A common misconception is that a solar module factory requires a large team of highly specialized engineers. In reality, the operational needs are more focused and practical. Based on internal data from J.v.G. Technology GmbH projects, a typical 20 MW solar module assembly line can be efficiently operated by a workforce of 25 to 30 people.

Assessing and Training the Technical Workforce for Solar Module Assembly

These roles are generally categorized as follows:

  • Machine Operators: Responsible for the day-to-day operation of specific equipment like stringers, laminators, and testers. This is the largest group of employees.
  • Technicians: Focused on equipment maintenance, calibration, and troubleshooting to minimize downtime.
  • Quality Control Inspectors: Tasked with ensuring that materials and finished modules meet strict quality standards at every stage of production.
  • Supervisors and Line Managers: Oversee production flow, manage the team, and ensure targets for output and quality are met.

What these roles require isn’t advanced academic knowledge, but an aptitude for precision, discipline, and process adherence.

The Common Challenge: Identifying the Local Skills Gap

In many emerging markets, from Nigeria—which aims to create 50,000 new solar jobs by 2030—to South Africa, a consistent pattern emerges. A study on renewable energy skills by the South African Renewable Energy Technology Centre (SARETEC) found that while general labor is abundant, there is often a significant gap in specialized technical skills, particularly for equipment maintenance and quality control.

This gap is a natural consequence of introducing a new industry. Local vocational schools and technical colleges may not yet offer curricula specific to photovoltaics. The investor’s task, then, is not to find perfectly qualified candidates, but to identify individuals with transferable skills and the aptitude to learn.

Key Competencies to Assess in Potential Hires

When formal PV manufacturing experience is scarce, the focus of recruitment should shift from credentials to core competencies. Successful teams are built on a foundation of teachable individuals with the right underlying abilities.

Key areas to assess include:

  • Technical Aptitude: Look for candidates with experience in other precision-oriented fields, such as electronics repair, automotive mechanics, or even textiles manufacturing. Such backgrounds suggest a familiarity with machinery and process-driven work.
  • Process Discipline: The ability to meticulously follow a Standard Operating Procedure (SOP) is non-negotiable in module assembly. Candidates should demonstrate an understanding of why consistency is crucial for a quality product.
  • Attention to Detail: Module assembly involves handling delicate components like solar cells and ensuring precise alignment. A strong focus on detail is essential for the quality control needed to produce reliable, long-lasting modules.

Feedback from past projects echoes this challenge. As one J.v.G. client in Nigeria, Mr. Julius Etim, noted: “Finding people was easy; finding people with the right mindset for precision and quality was the real challenge. The hands-on training from J.v.G. was essential to bridge that gap.”

Structuring an Effective Training Program

A well-structured, intensive training program is the most direct way to bridge the skills gap. Instead of a prolonged academic course, a focused program can equip a new team with the necessary skills in a matter of weeks. Turnkey line providers often include comprehensive training as part of the commissioning process, ensuring the local team is competent from day one.

A proven model, often used in J.v.G. turnkey projects, involves a three-week intensive program:

Phase 1: Classroom Theory (Approximately 1 Week)

This initial phase builds foundational knowledge. Topics include an introduction to photovoltaic principles, the function of each component in a solar module, the complete production workflow, and critical safety protocols. This theoretical grounding ensures that operators understand not just what they are doing, but why they are doing it.

Phase 2: Hands-On Equipment Training (Approximately 2 Weeks)

Following the classroom sessions, the team moves to the production floor for practical, supervised training on the actual machinery. Under the guidance of experienced engineers, they learn to operate each piece of equipment, perform basic maintenance tasks, and identify common production errors. This hands-on experience is crucial for building confidence and competence.

Practical Training on Equipment

This program prepares the team for the start of production. From there, continuous on-the-job training and skill development are necessary to foster a culture of improvement and operational excellence.

Frequently Asked Questions (FAQ)

Do my employees need a university degree in engineering?

For the majority of operational roles, such as machine operators and quality inspectors, a university degree is not necessary. A technical diploma, vocational school certificate, or relevant experience in another manufacturing industry is often more valuable. The most important factors are technical aptitude and a disciplined work ethic.

How many employees are needed to start a small factory?

A 20–50 MW semi-automated assembly line typically requires a workforce of approximately 25–30 individuals per shift. This includes operators, maintenance technicians, quality control staff, and a supervisor. This number allows for efficient operation without being overly labor-intensive.

What is the most critical role to hire for first?

Securing a competent Production Manager or Lead Technician early in the project is a crucial first step. This individual should have experience managing a manufacturing process and leading a team. They will be instrumental in hiring the rest of the operational staff and leading them through the training process.

How does the factory environment affect workforce requirements?

The physical environment plays a significant role in fostering a quality-focused mindset. The clean, well-organized layout of a solar factory requires employees who are disciplined and respectful of their workspace. The factory building requirements support a process that demands precision and cleanliness, and the workforce must uphold these standards.

Factory Environment and Workforce

The challenge of building a technical workforce in a new market is not an insurmountable barrier, but a manageable business process. It requires a shift in perspective—from seeking pre-qualified experts to identifying and developing local talent. With a clear assessment of core competencies and a structured, hands-on training program, an investor can build a skilled and motivated team capable of producing world-class solar modules.




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