Total energy use in buildings -analysis and evaluation methods

Monitoring is fundamental when aiming to better understand the energy behavior of buildings. Deficiencies in energy metering and consumption data have been an obstacle to comprehensive analysis and verification of the real energy performance of buildings. The situation is changing, however, with the current rapid introduction of the new automated meter reading technology (AMR) combined with modern information and communication technologies (ICT). Millions of so-called “smart meter” systems, comprising an electronic box and communications link, are being installed all over the world. The objective of this chapter is to review state-of-the-art online data collection systems and technologies and to analyze some applications developed in different countries for monitoring, analysis and management of energy, water, and other building consumption. This chapter contains a review of five online data collection systems, from Finland, China, Japan, Germany, and Spain. These systems were analyzed to identify the main features and characteristics of various measurement strategies for online data collection and monitoring systems designed for building energy systems and indoor air quality. Summary What is covered Subtask B2 sought to analyze state-of-the-art online information from data collection systems and technologies and to analyze particular applications developed by different countries for monitoring building energy consumption. The work of Subtask B2 has defined different online data collection systems, and examples are listed for further reference. The work also compares different online data collection systems with respect to scale, building type, data type, and data analysis. Subtask B2 reviewed five online data collection systems, from Finland, China, Japan, Germany, and Spain. These systems were analyzed to identify the main features and characteristics of various measurement strategies for online data collection and monitoring systems designed for building energy systems and indoor air quality. Also, an international online date collection platform is proposed. Why it is important Monitoring is crucial to better understanding the energy behavior of buildings. New automated meter reading technology combined with modern information and communication technologies are overcoming previous data deficiencies. Millions of smart meters are being installed. In addition, fastevolving sensor technologies with wireless and other communication capabilities offer cheap means for complementing energy data collection with measurements of various environmental factors. However, there are not precise definitions for these different online data collection systems. Thus, the result of this work may be used also as guidelines for different practitioners, such as designers, operators and other businesses. Key points learned • All online data collection systems normally require five components: measuring, obtaining external data (such as weather information), data transfer, data analysis, and reporting.

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