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Water Vapor Tower Reflecting Geothermal Energy in White Steel

Authors:
Barbara Stallone, Francisco Silva
Water Vapor Tower Reflecting Geothermal Energy in White Steel

Project in-detail

Harnessing geothermal energy, the water vapor tower in Grjótagjá integrates white steel structures with the landscape, creating a functional landmark that enhances public access and interaction with its natural surroundings.
5 key facts about this project
01
The tower releases excess geothermal energy as visible water vapor.
02
The design features a modular layout that minimizes ground disturbance.
03
White steel contrasts with the natural landscape, enhancing visual clarity.
04
A walking pathway connects significant geological locations in the area.
05
The structure serves as both a landmark and an educational resource.

The project in Grjótagjá takes full advantage of its unique landscape, defined by the meeting of two large tectonic plates. This area is marked by remarkable geological features and geothermal activity, providing an intriguing backdrop for the design. The structure aims to serve as a point of interest, enhancing the experience of visitors while integrating smoothly with the natural environment.

Design Concept

The design centers around a tower that embodies the connection between nature and human-made structures. It harnesses geothermal energy from the ground and transforms it into water vapor, creating a defining element for Grjótagjá. This approach not only highlights the natural beauty of the site but also emphasizes the interactions between landscape and architecture.

Spatial Organization

A modular strategy is employed, utilizing lightweight components that allow for easy construction and flexibility. These modules are arranged as small, distinct objects scattered throughout the landscape. This arrangement minimizes disruption to the natural ground while promoting a sense of continuity with the environment. This thoughtful layout encourages exploration, inviting visitors to engage with their surroundings.

Pathway Connectivity

A walking path connects the various spaces, forming a public loop that links important locations like Karlagjá and Vogagjá. This pathway enhances accessibility and promotes movement throughout the site. By encouraging people to wander, it fosters a deeper connection to the landscape, allowing visitors to experience the geological features up close.

Materiality and Sustainability

The materials chosen for the project focus on sustainability and visual harmony. The structures are made from white-painted steel, which provides contrast against the natural scenery while maintaining a simple aesthetic. The design efficiently uses geothermal energy, striving to minimize environmental impact and demonstrate a commitment to ecological principles.

The architecture culminates in a well-considered structure that rises from the land, creating an inviting presence that relates to the local geological phenomena.

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MICROHOME 10: Celebrating Small-Scale Living with €100,000 Prize Fund and Kingspan’s Innovation

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Competition organisers

The MICROHOME 10 competition invites participants to submit visionary designs for off-grid, modular microhomes that push the limits of sustainable, small-scale living. Organised by Buildner in partnership with Kingspan and Hapi Homes, this tenth edition sets the challenge of designing a dwelling for two people within a maximum floor area of 25 m², encouraging bold solutions adaptable to any urban or rural location. The competition continues Buildner’s mission to foster innovative approaches to compact, energy-efficient housing that can address pressing global challenges.

This year’s edition offers a generous total prize fund of €100,000, including the Kingspan Award for designs that integrate high-performance Kingspan products and the Hapi Homes Award for a project selected for real-world construction. In addition to cash prizes, the winners gain international exposure through Buildner’s media partnerships, publications, and a dedicated MICROHOME magazine, further amplifying their ideas to the wider architectural community.

Key dates for MICROHOME 10 include the closing date for registration on 25 September 2025, the submission deadline on 29 October 2025 (11:59 p.m. London time), and the announcement of winners on 9 December 2025. These milestones ensure participants have clear timelines to develop and present their concepts, with early registration discounts available to support students and emerging designers worldwide.

MICROHOME

Design a new small-scale home concept in the 10th edition of MICROHOME — 100,000 € prize + construction

100,000 € Prize Fund / Kingpsan Edition #10 ideas COMPETITION
Prize 100,000 € + Potential realisation
Eligibility Open to all
Final registration deadline 25 September 2025

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