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Savings Report for the Fort Hood Army Base
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This report presents electricity consumption and electric demand savings analysis for the Thermal Plant, buildings located in the 87000 block, III Corp building and other buildings that were determined to be part of the ESPC project at Ft. Hood, a total of 21 sites. The savings analysis for the Thermal Plant is not completed due to lack of post-retrofit data and will be included in the report upon receiving more data from Fort Hood. The data used for savings calculations were collected through the synergistic loggers installed at the Thermal Plant and III Corp building and portable loggers attached to Watt-hour meters in selected buildings. For each site, the hourly data collected for the pre- and post periods are converted to daily usage and then modeled with ASHRAE’s IMT change-point linear models. The electricity consumption savings is then calculated for the months post-retrofit data are available. The weather-independent analysis, which utilizes 24-hour profiles that were developed using ASHRAE’s 1093-RP diversity factor procedures, combined with ASHRAE’s IMT change-point linear models, are used to evaluate demand savings. In Section 1 of the report, savings summaries for the sites measured and all the sites are given. In summary, the total measured savings of 1,034,473 kWh for the measured period corresponds to 60.7% of the audit-estimated electricity savings. The total of the measured demand savings of 1,220 kW for the measured period corresponds to 37.2% of the audit-estimated savings. Both measured electricity and demand savings fall short of expectations. The projected annual savings, which include the projected annual measured savings for the sites measured and the stipulated annual savings for the sites not measured, to match the JCI estimates for all the 57 sites, is also presented in Section 1. 78.2% of the audit-estimated electricity savings and 72.0% of the audit-estimated demand savings could be achieved assuming that the sites not measured were achieving 100% of the audit-estimated savings. The detailed savings summary and the plots showing the savings analysis for each site are presented in Sections 2 to 22. An Appendix is also provided that includes the list of data files in the accompanying CDROM with this report.
Song, S.; Liu, Z.; Cho, S.; Baltazar-Cervantes, J. C.; Haberl, J. S. (2005). Savings Report for the Fort Hood Army Base. Available electronically from