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A 100 kWp array of green PV modules blends with the historic copper roof, setting a new benchmark for heritage-safe solar design.
The Vienna State Opera turns green with integrated photovoltaic modules

A 100 kWp photovoltaic system with 260 green modules is seamlessly integrated into the historic copper roof of the Vienna State Opera. Designed to preserve its Neo-Renaissance identity, the project blends solar technology with heritage, reducing energy demand without altering the iconic skyline.

Lucia Barin
Technical article cover showing a modern glass office building with highlighted façade elements and two engineers wearing helmets reviewing data, titled ‘Bridging the performance gap in zero-emission buildings’
Bridging the performance gap: the role of façade commissioning in achieving zero-emission buildings

Focusing on the performance gap, this article examines how façade commissioning and continuous monitoring enable the verification and optimisation of actual operational performance in line with zero-emission building (ZEB) requirements.

Editorial team
TOMORROW.BUILDING WORLD CONGRESS 
2026
TOMORROW.BUILDING World Congress 2026

Tomorrow.Building World Congress 2026 explores how digitalisation, circularity, and innovation can transform buildings and urban infrastructure. Held alongside Smart City Expo, the event brings together global experts to accelerate the shift towards net-zero, resilient cities.

Editorial team
Voices of Change: Success stories shaping Europe's buildings
Voices of Change: Success stories shaping Europe's buildings

Hear from citizens, practitioners, businesses, and policymakers driving building decarbonisation across Europe. With insights from the European Commission and national authorities, the event showcases real EPBD implementation stories and lessons from the Renovation Wave.

Editorial team
Modern residential building with an external heat pump unit, visible piping and a digital energy interface, illustrating sustainable heating.

This ToM explores key actions to accelerate heat pump deployment in Europe’s building sector, focusing on policy support, market readiness, skills and innovative solutions, while drawing on insight

01/06/2026
Federico Marcovecchio
Modern European neighbourhood with uniform houses and rooftop solar panels, shown in warm sunlight with clean streets and greenery.

This ToM explores the role of energy communities in the EU’s clean energy transition, focusing on:

01/04/2026
Federico Marcovecchio
The image shows a refurbished two-storey industrial building with an exposed brick façade and light stone detailing, bearing the inscription “Constructions Mécaniques”. Large metal-framed windows and external shutters coexist with planting on balconies and the roof, while several cars are parked along the street in front.
The GrünboX Case: from abandonment to urban resilience

GrünboX-Vienne transforms a disused industrial building through circular economy principles and sober design, achieving significant CO₂ and water savings while proposing a replicable model for sustainable urban regeneration.

Editorial team
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