The Smart Readiness Indicator (SRI) was introduced in the 2018 revision of the Energy Efficiency Directive to provide an overview and evaluation of the impact of advanced and adapted technical building system technologies on the energy efficiency of buildings. In addition to the building energy performance indicators, a new indicator is introduced to promote the use of state-of-the-art smart technologies in buildings. These contribute to increased living and working comfort, the decarbonisation of the building sector and the upgrading of buildings into building blocks for smart grids. As the indicator is in the implementation phase and its impact on energy efficiency is not yet fully defined, the work focuses on establishing the correlation between the SRI value and the energy efficiency of buildings. The work analyses the energy performance of a single-family house and a commercial-residential building at different SRI ratings. It was found that a higher Smart System Readiness Index for buildings with the same technical building systems, means better energy efficiency and lower carbon dioxide emissions.
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