Abstract
ABSTRACT CenterPoint Energy is the first investor-owned utility in the state of Texas to sponsor a retro-commissioning program for commercial and industrial markets in its service territory. CenterPoint Energy is a Houston, Texas, based company engaged in the transmission and distribution of electric power to 1.8 million customers in a 5,000 squaremile area that includes Houston, the fourth largest city in the nation. Deregulation occurred in Texas in 2001, and significantly changed how investor-owned utilities offered energy efficiency programs within their service territories. As part of deregulation, the State Legislature required that 10 percent of all new demand growth be met through utility-sponsored energy efficiency programs. In the large commercial and industrial markets, CenterPoint Energy implemented a commercial and industrial standard offer program to help meet this 10 percent demand reduction goal. After two years of implementation and a downturn in the economy, it became apparent that another program was needed to extract demand reduction from commercial and industrial markets. Through discussion with national experts and review of other building commissioning programs, CenterPoint Energy concluded that retrocommissioning would be a good candidate to supply additional demand reduction along with identifying opportunities for its commercial and industrial standard offer program. In conjunction with other Texas investor-owned utilities, a retro-commissioning program template was submitted to and approved by the Public Utility Commission of Texas in early 2003. This program has been structured to be a market transformation offering, and will continue until retro-commissioning becomes an everyday practice in the CenterPoint Energy service territory. This article will detail the development of CenterPoint Energy's retro-commissioning program, characterize the market for retro-commissioning in the CenterPoint Energy service territory, review program goals over the next three years, and discuss results to date and lessons learned.
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