Innovation & Solar Technology: Mondragon Assembly welcomes over 100 visitors to its Aretxabaleta headquarters

More than 100 visitors discovered Mondragon Assembly’s solar energy and automation solutions in Aretxabaleta during an exclusive event.

Mondragon Assembly, a leading company in automation solutions for solar energy and energy storage, opened its doors on September 23, 2025, for an exclusive event in Aretxabaleta. Organized by Mondragon Assembly’s Solar Business Unit within the framework of the EU PVSEC Bilbao 2025 fair (September 22–26), the meeting brought together more than 100 international visitors eager to experience firsthand the latest innovations in solar machinery and photovoltaic assembly technology.

Live demonstrations of solar technology

The central highlight of the event was the live demonstrations of four production machines, showcasing Mondragon Assembly’s capacity to deliver advanced solutions in solar panel manufacturing:

High-performance solar laminator

The laminator, one of the highlights of the demonstrations, is the machine responsible for encapsulating photovoltaic cells by applying controlled pressure, vacuum and temperature. This process ensures the module’s quality and durability, preventing issues such as moisture penetration or mechanical fatigue over its lifetime.

Traditional soldering stringer

The classic soldering stringer showed how solar cells are interconnected with precision to form electrical strings, a fundamental step in bringing the panel to life.

Stringer with ECA technology (Electrically Conductive Adhesive)

Also presented was the stringer that uses conductive adhesive instead of soldering, an increasingly popular alternative in new-generation cell connections such as IBCs.

Multi-technology laboratory stringer

Finally, the laboratory stringer offered a flexible solution designed for testing and research environments, capable of adapting to different interconnection methods and solar technologies, such as TopCON, HJT, IBC, and even Tandems.

An event within EU PVSEC 2025

The meeting was held in parallel with the EU PVSEC Bilbao 2025 fair (September 22–26), where Mondragon Assembly also participated. Taking advantage of the geographic proximity, the company organized this event with the aim of bringing visitors closer to its daily operations and showcasing its work in the field of solar automation.

Guests arrived at 7:30 p.m., transported by two buses arranged from the fair for convenience. The welcome address was delivered by Xabier Otaño, Sales Director of the Solar Business Unit, who explained the purpose of the event and introduced the agenda.

Networking and local culture

After the technical demonstrations, the event shifted to a more relaxed setting with a Basque pintxos cocktail, where attendees enjoyed the local gastronomy while continuing their conversations.

The response to the invitation far exceeded expectations: while initially between 30 and 50 participants were expected, more than 200 registrations were received. Ultimately, due to space limitations, the number of attendees was capped at 100.

Event video highlights: innovation and networking in Aretxabaleta

Would you like to relive this day? We have prepared an event highlights video, where you can watch the technology demonstrations, experience the atmosphere, and hear firsthand the reasons behind organizing this meeting.