JA Solar, a leading global partner in green energy, recently hosted a new edition of its Power Talk webinar series, spotlighting one of Europe’s most remarkable solar initiatives, the photovoltaic installation at SIGNAL IDUNA PARK, home of Borussia Dortmund.
Certified by RID as the world’s most powerful PV system installed on a stadium roof, the project represents a major step forward in integrating photovoltaic technology into large-scale urban infrastructure. More than 11,000 JA Solar full-black modules now span the stadium rooftop, generating over 4 GWh of clean electricity each year and reducing CO₂ emissions by approximately 1,700 tons annually.
This achievement showcases how high-performance solar solutions can be seamlessly integrated into landmark venues while adhering to rigorous architectural, safety, and operational standards.
Webinar speakers traced the project’s journey from concept to commissioning, underscoring the importance of early feasibility studies, long-term planning, and close stakeholder collaboration. They highlighted logistical and technical challenges of working at one of Europe’s busiest stadiums, where construction had to align with a packed calendar of sporting and non-sporting events, strict safety standards, and variable weather conditions.
Beyond energy generation, the installation stands as a powerful sustainability statement. With millions of visitors and viewers each year, SIGNAL IDUNA PARK offers unmatched visibility to showcase the energy transition and demonstrate how professional sports can actively support climate goals.
For JA Solar, the project is a flagship reference in delivering PV solutions for complex, high-profile environments. It illustrates the company’s ability to ensure reliable product supply and high-performance modules for demanding applications, opening new opportunities for PV integration across public infrastructure and sports venues in Europe and beyond.
The webinar featured insights from Petra Zelenická, Head of Marketing and Market Research Europe at JA Solar; Florian Demnitz, Energy Manager at Borussia Dortmund; and Christoph Kielhorn, Project Lead PMO Battery Development at RWE. The session was moderated by Gianluca Michieletto, Marketing and Social Media Manager at JA Solar.
