Abstract
In order to drive forward the energy transition, construction companies and other suppliers of deep retrofitting solutions have started to give guarantees on the energy performance of very energy efficient houses. With these initiatives, a need has arisen for methods that can assess per household the actual energy performance during the use phase. An RC-network simulation model calibrated with monitoring data has been developed and tested on deep retrofitted Net-Zero houses in Emmen (the Netherlands). The results show that this has been a successful first step in order to arrive at a realistic analysis of the actual energy performance of individual houses. The big challenge will be to determine the parameters in the model with more certainty. This applies especially, but not exclusively, to the behavioural parameters.
Highlights
In order to drive forward the energy transition, stakeholders are looking for ways to accelerate the construction and renovation towards highly energyefficient buildings that go far beyond the current regulatory bottom-line requirements
What the study has shown is that it is feasible to fit a model to monitoring data and to arrive at a good reflection of the actual energy consumption, hourly temperature progression, and energy signature
This has been achieved despite the fact that the spread in the user behaviour of residents and neighbours, in particular, leads to large variations in these factors
Summary
In order to drive forward the energy transition, stakeholders are looking for ways to accelerate the construction and renovation towards highly energyefficient buildings that go far beyond the current regulatory bottom-line requirements. To stimulate interest from owners and tenants, construction companies and other suppliers of deep retrofitting solutions have started to give guarantees on the energy performance of these houses [1] and want to do the same for comfort and health related aspects in the future. With these initiatives, a need has arisen for methods that can test these performances in practice. The person who provides the guarantee, sometimes for 25 years, can be held accountable if the guarantee is not met This is justified if a disappointing performance is caused by structural or technical installation defects. That's why we want to develop a method with which we can determine at an individual level the actual performance of houses that are in use
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