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- W2300979162 abstract "In 2001 the Texas Department of Criminal Justice Utilities and Energy Department (TDCJU&E) completed the installation of an extensive energy consumption metering system for their prison industries system. As the second largest state prison system in the nation, TDCJ facilities are scattered over many locations around the state and cover a diversity of prison industries and agricultural operations. The Energy Systems Laboratory (ESL), with New Horizon Technologies, Inc. (NHT) and eComponents Technology, Inc. installed a state-ofthe-art sub-metering system with the intent of meeting the needs of the TDCJ-U&E group well into the future. The system uses a web-based data acquisition interface and is capable of near real-time data acquisition and display. Fifteen-minute interval utility and sub-metered energy consumption data have been continuously collected since the system was commissioned. This paper describes the varied applications for these data at the TDCJ-U&E department. Significant improvements in the quality of energy use reporting and unit accountability have been obtained. Prison industries now receive monthly energy consumption reports and are responsible for the cost of their sub-metered energy consumption. Additionally, the operations and maintenance staff have found the data to be very useful for energy systems and equipment operational diagnosis. BACKGROUND AND INTRODUCTION The Texas Department of Criminal Justice began the implementation of an enterprise-level energy information system for Texas Correctional Industries (TCI) in May 1999. Initially 45 TCI sites were included in the energy metering system. Data acquisition at the first sites began in May 2000 and commissioning continued through the remainder of the year. Initial software training was provided in November 2000. Continuous data collection from all channels at all sites was ultimately achieved in March 2001. The TCI facilities are scattered at many locations throughout the state and cover a diversity of prison industries and agricultural operations from meat packing to metal fabrication, furniture restoration, garment and shoe factories, vehicle restoration, soap and detergent plants, mattress-making, and graphics production that includes sign and license plate manufacturing. Energy costs are a major component of the Texas Department of Criminal Justice budget. Through responsibility accounting, wardens and other managerial staff are required to account for and justify energy costs for various prison industries and agricultural operations. The initial application of the TDCJ Prison Industries Energy Monitoring System was to measure and correctly allocate energy costs for all of the prison industry facilities. Energy costs had previously been allocated based on square footage or other non-metered metrics. The energy monitoring data has had other uses including helping to identify potential equipment or operational problems with mechanical or electrical equipment at TDCJ industry facilities. DESCRIPTION OF EXISTING UTILITY MONITORING SYSTEM A generic schematic drawing of the TDCJ Utility Monitoring System is shown in Figure 1. The central element of the monitoring system is a “ThinServer.” The ThinServer, in essence, is a single-board computer with an embedded Linux operating system, pulse counting channels and several communications ports. These communications ports support 10baseT Ethernet as well as RS-232 and RS-485 communications. The system includes telephonebased modem communication and supports TCP/IP Internet protocol. Each ThinServer can support up to 67 channels of data collection. The current base monitoring system includes service entrance level electricity and natural gas metering at each industry site. Limited sub-metered is also included at some sites. A maximum of 21 data points is collected at a single site. The TDCJ Utility Monitoring System is operated through a central server located at the TDCJ Utility and Energy offices at the system headquarters in Huntsville, Texas. The server operates Square D SMS 3000® and EnerTel® software. EnerTel, ESL-IC-03-10-02 Proceedings of the Third International Conference for Enhanced Building Operations, Berkeley, California, October 13-15, 2003" @default.
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- W2300979162 date "2003-01-01" @default.
- W2300979162 modified "2023-09-27" @default.
- W2300979162 title "Prison Industries Metering at the Texas Department of Criminal Justice: Two Years of Operational Experience" @default.
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