The IAQ platform is a combined Indoor Air Quality (IAQ) sensor and a user-friendly web interface. The IAQ sensor measures various quantities defining the indoor environment such as temperature, humidity, CO₂ concentration, VOC concentration, particulate matter (optional), and barometric pressure. The measured quantities are then used to inform the user, directly control technology in the building (AHU, HVAC), or provide necessary data to a superior system via Wi-Fi, LoRa WAN (optional), Modbus TCP (over Wi-Fi), RS485 with Modbus RTU.  The sensor is equipped with a RGB LED indicator or LCD display.

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A coordinated approach to large-scale residential retrofitting in Palma de Mallorca, combining technical planning, citizen support, innovative financing and Next Generation EU funding. Through collaboration between the municipality, service providers, financial actors and residents, it aims to simplify and accelerate deep energy renovations of multi-family buildings. Digital tools are also used to support building selection, renovation planning and the assessment of environmental and social impacts at neighbourhood level.

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The aftercooling concept is an innovative district heating substation for large multi-apartment buildings where the domestic hot water preparation and reheating of the circulation flows are decoupled and obtained in two separate heat exchangers connected in parallel. The primary return temperature flow from the circulation heat exchanger is further aftercooled by the space heating system before returning to the district heating network. The concept provides a reduced return temperature to the district heating network.

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Development and demonstration of timber and bio-based modular renovation and construction solutions designed to minimise disruption during building operation. The approach combines prefabricated plug-and-play components, sustainable materials, and integrated monitoring systems to support low-carbon and circular renovation practices.

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Coloured PV panels installed on the roof and façade of a building to maximise renewable energy production and provide surplus energy. The design of the PV modules layouts is defined by the PV modules orientation in relation to the sky, the orientation of building longest facades, and the regulatory provision regarding the appearance of the PV façade.

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Timber-based scenarios for new and existing buildings to enhance the use of wood as a circular construction-renovation material combined with forefront sustainable and energy saving technologies, nature-based solutions, and compound performance and comfort monitoring systems. 

The first scenario is the construction of a new wooden-based positive energy building located in in an area currently used as a parking lot. The new building has been conceived as a multifunctional hub with integrated services.

The second scenario is the architectural renovation and energy refurbishment of existing buildings using timber. The scenario consists of testing the prefabricated wooden-based panel – called “Renew Wall” (RW), a modular system and wooden-based retrofit kit conceived to be easily applied on existing buildings.

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Use of digital technologies, such as satellite images, street-level photos and 3D scans, to automatically analyse buildings and identify those with similar characteristics. By looking at features such as roof shapes, façade designs and construction materials, the system creates a kind of “building DNA” that groups buildings into common types. This makes it easier to plan large-scale renovations, identify suitable retrofit solutions and accelerate the delivery of energy-efficient upgrades across entire neighbourhoods.

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Different 3D and/or visualiSation techniques of Virtual Reality (VR) and/or Augmented Reality (AR) are being used during the development of the Oslo and Palma demos to better communicate results of different scenario analyses to different types of stakeholders, to facilitate citizen engagement, and to promote education and training for sustainability. The development of VR and AR applications are targeted toward several distinct stakeholders (city planners and policy makers) and citizen user group types (e.g., school children, common public, inhabitants and infrastructure users, service personnel).

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