Bonneville Power Administration
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BONNEVILLE POWER ADMINISTRATION ESD PROGRAM FUEL CHOICE STUDY - FINAL REPORT
PREPARED BY PACIFIC ENERGY ASSOCIATES, INC.
This report provides the findings of Pacific Energy Associates (PEA) for the Energy Smart Design (ESD) Program Fuel Choice Study. The objectives of the study were to assess the likelihood and magnitude of influence that the Energy Smart Design Program incentives had on participant selection of electric end-use equipment as compared to gas equipment for space heating, space cooling, and water heating, and to make recommendations concerning the ESD program. This study is part of a review of all current BPA conservation programs to determine their effect, if any, on the gas and electric utility markets.
The focus of this study is on those buildings completed in the 1991 and 1992 program years, which were in the ESD database and had installed either energy efficient HVAC or water heating equipment. This study reviewed available documentation on the fuel switchable energy conservation measures and conducted interviews with utility ESD staff, project representatives, and project and contractors to determine the impact of fuel choice on the overall ESD program savings.
B. Program Background
As part of its conservation resource acquisition effort, the Bonneville Power Administration developed in 1987 the Energy Smart Design Program (ESD) for commercial buildings. This utility-operated program provides design assistance and financial incentives for cost-effective conservation measures in new and renovated commercial buildings. The participant utilities offer design assistance to commercial building owners and designers using computer simulations of building energy use, hand energy use and savings calculations, walk-through energy audit, or the prescriptive path manual. In general, the larger public utilities have implemented the program themselves, whereas smaller utilities refer projects to their BPA Area or District Offices.
The program began offering financial incentives in 1991, which cover at least a portion of the costs for measure installation, design services, building commissioning, and other services. The ESD financial incentives are provided through either a rebate or a site-based path. For the rebate path, specific rebate amounts have been developed for a list of pre-screened energy conservation measures. In the site-based (or performance) path, the ESD project receives an energy analysis or audit (for example, computer simulations) which identifies cost-effective energy conservation measures and the incentive amount for which it is eligible.
C. Study Methodology
The ESD Fuel Choice Study consisted of the following research activities:
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