J Pérez, J_C Marcel, J Viñuela, V Gay, M Bourdeau
FIEMSER: Energy Efficiency in Smart Residential Buildings
Abstract: Buildings are responsible for up to 40% of energy use in most countries. However, there is a great potential to improve this figure, and ICT is one of the key tools to achieve it. This paper will present how the FIEMSER system will contribute to increase the energy efficiency in residential buildings through a double strategy: optimizing the operation of the building (energy demand, local generation and storage) and improving the behaviour of the building users. The FIEMSER system is an innovative Building Energy Management System (BEMS) for existing and new residential buildings that is been developed in the context of the Seventh Framework Programme (FP7). Current BEMSs have several weaknesses: predefined energy control strategies, lack of integration of the local energy generation with the building energy consumption, lighting system is completely decoupled from the HVAC system, based on wired control networks, limited interoperability, … FIEMSER system will define dynamic and holistic control strategies that take into account the current and future building operating conditions (building users activities, weather conditions, energy prices,…) and integrate the different energy related subsystems: HVAC, lighting, local generation and energy storage. The FIEMSER system leverages on the Service-Oriented Architecture (SOA) paradigm with the definition of modular service interfaces. This paradigm provides the necessary flexibility to adapt the system to the different configurations, integrate existing control protocols and emerging wireless ones, and support different GUI (Graphical User Interface). This paper will address the following questions: opportunities to reduce energy demand and increase local generation in residential buildings; operation scenarios; functional requirements of the FIEMSER system; the OSGI-SOA architecture that supports it and the associated data model.
Keywords: Smart Buildings, Energy Efficiency, Intelligent Control, Local Generation
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L Simonian, N Goodell
ENERGY INFORMATION SYSTEM DASHBOARD INTEGRATING WIRELESS SENSING DEVICES WITH WIRED METERING AND CONTROLS – A CASE STUDY
Abstract: According to the most recent Annual Energy Review published by the United States Energy Information Administration, residential and commercial buildings are responsible for 40% of the energy consumed in the United States, 66% of the electricity use, and 39% of the carbon-related emissions (EIA - U.S. Department Of Energy 2009). The current emphasis is to design and construct energy efficient buildings that use 70 percent less energy (than today’s average building) by 2030, and to achieve zero net energy by supplying the remaining energy from clean and renewable resources (U.S. Department of Energy 2007). An Energy Information System (EIS) is an essential informational link towards realizing this goal. This case study exams a facility where several (wired and wireless) data acquisition systems gather energy and thermal comfort data in an institutional office building occupied predominantly by research scientists and support staff, and these systems are integrated into a single EIS. The EIS includes graphical reporting features to convey building information to operators, managers, owners, occupants and facilities personnel who have the capability to act upon the information to impact energy efficiency and comfort in the building. As EISs are still a new field, it is important to identify what needs to be done in the future to ensure their usefulness as a tool to improve energy efficiency and occupant comfort in buildings. They are an essential step on the road to achieving buildings that use zero net energy.
Keywords: Energy Information System (EIS), Wireless Sensing Network, HVAC, Energy Use
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