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Building Automation and Control Systems (BACS)

Building automation and control systems contribute to the energy-efficient operation of buildings of all use types. They enable the energy-efficient and cost-effective integration of local renewable energy supply technologies, as well as the management of energy storage and flexibilities to optimally balance energy demand and supply in the operation of building energy systems. The market for building automation systems provides several tested approaches and commercial solutions e.g. BEOS from Siemens, which is showcased in Seestadt Aspern Vienna. Additionally, aspects of building maintenance can be integrated in building automation systems, which allows for maintenance demand predictions that enable the cost-effective operation of buildings. 

Figure: Overview of Building Automation and Control system applied in Vienna- Copyright Siemens (https://assets.new.siemens.com/siemens/assets/api/uuid:d9035c01-2e7c-47b3-973a-c523d49cb626/bems-building-energy-management-system-siemens.pdf)

There are a few solutions for implementing smart energy efficiency solutions for already efficient office buildings, developing tools to communicate about office building's energy efficiency solutions to users, and motivating them to complement individual energy efficiency measures. Smart energy efficiency solutions included implementing and testing several features that utilise new smart thermostats, an upgrade to the building automation system, and the development of communicative tools for building energy-saving features.

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