Green Solution House – Overall 10 Years

Location: Bornholm, Denmark

Owner/investor: Trine Richter

Architects: Kasper Guldager Jensen — 3XN, Steenbergs Tegnestue, SLA, GXN innovation

Project type: Conference center and hotel

Design parameters: Comfort

  • In living and working spaces, natural light is essential to provide visual comfort and high productivity, reducing energy consumption for artificial light. Thus, in GSH sun tunnels and light cables, skylights and huge fenestration assure well-lit spaces and high daylight levels everywhere (e.g., DF6.6% in the conference room). Moreover, the substitution of existing concrete railings with glass surfaces improves daylight conditions for hotel rooms. Besides, a green wall and specific finishing materials clean and purify indoor air, absorbing pollutant particles and balancing humidity levels. A mechanical/natural ventilation system guarantees indoor thermal comfort, through permeable acoustic panels, which diffuse air from the ceiling, with a reduction of duct sizes and performing as radiative cooling.

Design parameters: Energy

  • According to the educational purpose, GSH has an interactive learning tool by LEAPCRAFT, which allows to visualize energy fluctuations and to understand the correlation between users’ behavior and consequent variations of energy consumption and environmental impact. This tool has recorded data from the as-built phase to the users’ interaction one, calculating an average of 3.33 kWh/m2 as first-year energy performance. Besides, the energy demand is 2200 kWh/year, whose 32.3% comes from renewable sources. Global energy requirements are satisfied by exchanges with Bornholm local grid; floor heating/cooling are supplied on-site, by a thermal energy system partly based on food leftovers recycle. Moreover, south-located glasses are equipped with PV-cells that produce 5000 kWh/year.

 

Design parameters: Environment

  • Inspired by a Cradle-to-Cradle life cycle concept and circular sustainability, GSH is the results of assembled solutions, whose materials and products have been inquired through an LCA perspective and certified for they recyclability (nearly 50% of total) and social responsibility of resource use. This process has been validated by DGNB.

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