Skip to main content
Mercado 2 de Maio skylight featuring crystalline silicon photovoltaic glass by Onyx Solar

MERCADO 2 DE MAIO · VISEU, PORTUGAL

RENOVATION

The Mercado 2 de Maio, located in the heart of Viseu, has been a key part of the community since 1879. Over time, it has undergone several transformations, and the latest renovation introduces a strong focus on sustainability.

This renovation features a photovoltaic glass canopy, merging modern aesthetics with on-site renewable energy generation. The canopy not only improves the market’s energy efficiency by harnessing sunlight but also offers shade and comfort to visitors. By generating clean energy, it significantly reduces the market’s environmental impact. The integration of photovoltaic glass aligns with Viseu’s commitment to sustainable urban design. Mercado 2 de Maio is now a model for blending historical architecture with innovative green technologies.

EXPLORE THE INNOVATIVE FEATURES OF THIS SUSTAINABLE ENERGY PROJECT

The choice of photovoltaic glass for this project is particularly fitting for this historical site, allowing the structure to embrace modern energy solutions while preserving its cultural significance. With the capacity to reach a nominal power of 34 Wp per square meter, the photovoltaic glass canopy generates a substantial amount of clean energy, helping reduce the market's dependency on external power sources. The 20% visible light transmission ensures an optimal amount of daylight enters the space, enhancing the market’s welcoming atmosphere without creating harsh glare. Additionally, the 32% G-value helps regulate solar heat gain, ensuring the canopy contributes to thermal comfort for both vendors and visitors, even on warm days. This seamless integration of renewable technology in a heritage site not only demonstrates the potential of photovoltaic glass but also sets a new standard for sustainable renovation practices in urban settings.

Detail of Mercado 2 de Maio skylight featuring crystalline silicon photovoltaic glass by Onyx Solar
Overview of Mercado 2 de Maio skylight featuring crystalline silicon photovoltaic glass by Onyx Solar
Technical Data of Mercado 2 de Maio project
Take a journey through our PROJECTS & REFERENCES catalog

Over 500 projects completed across 60 countries on all five continents.

Learn how our photovoltaic solutions are shaping the future of architecture.

Explore our full catalogue available in PDF or as an AUDIOBOOK.