BLOG: Building Renovation Passport: enabling energy efficiency with long-term strategy

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Despite financial subsidies, money remains the main barrier towards deep energy renovation. Shifting towards multi-staged deep renovation to spread costs requires long-term planning and data storing.

Accessing the building data through digital tools is essential to ensure the performance as described in the Key Performance Indicators of the project (reference to the REHOUSE article: Assessing the success of renovation technologies)

In the case of REHOUSE, we aim at assessing innovative renovation solutions and how they impact the wellbeing of residents as well as the efficient use of resources. Such knowledge is required to react immediately to inconveniences or to any performance gap.

But it is also worth taking the longer term view and considering the knowledge on a similar time scale as the building’s life cycle. The Building Renovation Passport (BRP) is one of the services included in the upcoming Digital Building Logbook, the main platform to share the data between REHOUSE demonstrations’ stakeholders.

The REHOUSE BRP is used as a logbook for a deep stage energy renovation, i.e. a deep renovation operated in different stages. A deep staged renovation requires an initial energy audit, as a basis for the creation of a renovation scenario. The scenario is then split and scheduled in a multi-year planning. The REHOUSE BRP is a simple and intuitive service, that allows building owners and renovation stakeholders to quickly identify what measures have already been implemented and what still needs to be done in order to obtain information about the expected energy consumption in the various phases of the renovation scenario, as well as financial information about savings and investments. The analysis can be carried out for one single building or for an entire portfolio of buildings.

This way the REHOUSE BRP provides insight on the consequences of past decisions and offers the knowledge to support the decisions for the future actions and performance.

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Figure 1: Screen shot of a Building Renovation Passport for “Planning” in the Renovation Plan (all under development)
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Figure 2: Screen shot of a Building Renovation Passport for “Economic” in the Renovation Plan (all under development)

The REHOUSE Building Renovation Passport is currently under development and will be integrated as a service in the future REHOUSE Digital Building Logbook.

Author’s name: Aurélien HENON and Pierre BOURREAU, engineers and project managers, NOBATEK

(c) picture credits: NOBATEK

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