
Brainergy Hub
The Brainergy Hub project located in Jülich is the centerpiece of a newly designed innovation park for companies and start-ups dedicated to sustainable and renewable energy research, bioeconomy and digitalization. The innovative use of materials, forms, and technologies gives rise to a highly energy-efficient building that generates a major share of its energy requirement itself. The striking rotunda structure functions as a social knowledge hub for Brainergy Park, embodying the transition to renewable energy and a green future.
Modular and omnidirectional


Its circular shape makes Brainergy Hub omnidirectional and links it to all neighboring buildings. Inside this circle, modular units form a pixelated cloud enclosed by three rings of balconies on the upper floors. This structure allows for easy subdivision and a playful arrangement of interior and exterior spaces. The highly rational grid is accentuated by a large central atrium and four smaller courtyards that vary from double height to triple height, providing fresh air and daylight to employees throughout the building.


The flexible system includes spaces for several smaller companies whose employees can gather in communal areas located around the central atrium for co-working and informal interaction. A generous spiral staircase guides visitors through this communication space, while additional external staircases serve as shortcuts for employees and allow the office units to be accessed independently from the balcony rings. The Hub’s recessed ground floor establishes a striking north-south axis on the site that links to a newly created lake in the north and to an existing orchard in the south.


Authentic material appeal
Brainergy Hub uses a hybrid structure of timber and reinforced concrete. Wooden columns and beams are intentionally left visible. Together with the interior wood paneling, they create a warm, natural atmosphere. At the same time, the interior design leaves its distinct mark using bold colors and large-scale typography. The circle defining the building’s shape becomes a recurring motif in the interiors. Materials and sustainably manufactured products are used sparingly and thoughtfully.

Minimizing the environmental impact
Timber-concrete composite slabs allow for wider spans and provide thermal mass for active heating and cooling systems. The walls of the exterior stairwells contribute to the bracing of the structural framework. Photovoltaic panels installed on the rooftop and façade generate electricity while excess power is fed back into the grid. The Hub is also an active ‘prosumer’ in the low-ex network, a local heating network that connects the park residents.

Throughout the design and planning process, the carbon footprint of the project was calculated and assessed in respect of both embodied and operational carbon. This data informed design decisions to keep the building’s environmental impact as low as possible.

Key Info
Collaboration Partners
Latz + Partner, Buro Happold GmbH, Müller BBM, Schöne Neue Welt Ingenieure, Kempen Krause Ingenieure, K & P Planungsbüro GmbH, ComConsult, hmpartner, Büro Uebele