Sustainable Plus-Energy houses

DTU Byg, Indeklimacenteret
Carry out an evaluation and measurement program in two newly developed concepts for plus-energy houses. DTU Civil participating in the Solar Decathlon in Madrid, while COWI establishes Innovation Lab. The two concepts are based on various newly developed components and solutions, and the coordinated monitoring program to ensure synergy in the collection of experiences and knowledge.
The experiences and the results revealed that it is possible to build plus-energy houses that are aesthetically appealing, energy efficient, environmentally friendly and have a healthy and comfortable indoor environment.
Project description
Carry out a coordinated evaluation and measurement program in two newly developed concepts for plus-energy houses that during 2012 will be ready for demonstration. DTU Civil participate in international competition for university developed plus-energy houses Solar Decathlon in Madrid, while COWI establishes Innovation Lab. The two concepts are based on various newly developed components and solutions, and the coordinated monitoring program to ensure synergy in the collection of experiences and knowledge. Measurements at Build-DTU's house (FOLD) is divided into three phases: the DTU because, during the competition in Madrid and eventually, when the house back at DTU also be tested with simulated and real residents. COWI's house will be moved to different locations in Denmark with a duration of 6-12 months. Read more about the Solar Decathlon on www.sdeurope.org/?lang=en.
Results

The project was carried out in four phases: the design and precompetition period, the competition period (17th-28th of September 2012), the measurements in Bjerringbro from 26th of September 2013 to 1st of October 2014, and the investigations of the improvement possibilities in the building and HVAC system design.

The experiences and the results revealed that it is possible to build plus-energy houses that are aesthetically appealing, energy efficient, environmentally friendly and have a healthy and comfortable indoor environment. Though, this requires careful and detailed design, operation, and good craftsmanship (air-tightness, building envelope, lowered thermal bridges, etc.). Even though it might be possible to improve the energy performance of the house with some changes after the construction, this is not the optimal situation. This house diverged from the ideal situation, due to the high heating and cooling demand. It should be noted that with less heating and cooling demand, it would be possible to achieve plus-energy targets with less area of active components (e.g. photovoltaic/thermal panels).

Key figures

Period:
2012 - 2014
Funding year:
2012
Own financial contribution:
0.92 mio. DKK
Grant:
1.18 mio. DKK
Funding rate:
56 %
Project budget:
2.10 mio. DKK

Category

Oprindelig title
Bæredygtige Energi-Plus huse
Programme
ELFORSK
Technology
Energy efficiency
Case no.
ELFORSK 344-060

Participants

Danmarks Tekniske Universitet (DTU) (Main Responsible)
Partners and economy
Partner Subsidy Auto financing
COWI A/S
Danmarks Tekniske Universitet (DTU)
GRUNDFOS A/S
ROCKWOOL A/S
NILAN A/S
UPONOR

Energiforskning.dk - informationportal for danish energytechnology research- og development programs.

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