Abstract
As efficiency of the equipment improves, there is a need for more sophisticated control over all equipment to achieve a global optimization. The idea of a simulation-powered building energy management and control system (SPEMS) to achieve such optimization has interested the building retrofit community since the 1980s, but there is still no such system available to consumers today. In this paper, a 200,000 square foot high-rise office building in San Jose, California, is used to demonstrate the SPEMS. For this demonstration, DOE-2.2 building energy simulation was used, and the building model was calibrated to the actual electricity meter interval data for the year 2007. The building simulation showed 2.25% energy reduction and the estimated payback time was 11.4 years. This result is significantly different than the 20% energy reduction result by Cumali et al. in 1988. The reduction of savings from SPEMS is due to system optimization done vi through smarter EMCS and higher building efficiency standard set by California Title 24 Building Code.