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This paper discusses the actual selection and application of thermal envelope energy conservation measures for the 102 223 m2 (1 100 000 ft2) of Weld County School District No. 6 buildings, which are located in the cities of Evans and Greeley, Colorado. Since 1976, the district has followed an intensive energy conservation program in which mechanical, electrical, and structural retrofits have been prioritized on a cost/benefit basis, and measures have been financed by school funds or by 50–50 grants from the Institutional Grants Program of the U.S. Department of Energy. The thermal envelope measures discussed include replacement windows, storm windows, vestibules, overlay of thermal insulation on glass block, attic insulation, and rigid roof insulation. These measures, along with the usual retrofitting of controls for mechanical and electrical systems, have resulted in a cost savings of $305 342 for the district in 1983, in comparison with 1976. Finally, mention is made in this paper of the systemizing of the district's total energy conservation efforts in order to recognize the need for motivational measures aimed at the building occupants. This effort complements the ongoing thermal envelope and hardware retrofit measures.
cost savings, energy conservation, school building energy conservation, thermal envelope, retrofits, federal energy conservation programs, thermal insulation
Supervisor of energy conservation, Weld County School District No. 6, Greeley, CO