Paper Conference

Proceedings of Building Simulation 2017: 15th Conference of IBPSA


Graphical Visualization of Potential Cost Savings from Energy Storage under Time-of-Use Electric Rates

Taewoo Kim, Paulo Cesar Tabares-Velasco
Colorado School of Mines, Golden, Colorado, USA

Abstract: Buildings play a prominent role in the electric grid: use about ¾ of the total electricity generated in the United States and drive electric peak demand in summer. Energy storage is one of the key technologies to reduce demand for energy and current transition towards Time-Of-Use (TOU) plans provides an opportunity to utilize storage technologies (electric and thermal) to further increase cost savings and reduce stresses on the grid during peak hour. Although there has been several efforts and studies reporting cost and energy savings, from different energy storage applications, their application is limited as previous studies have focused to particular climate(s), building design, and electric rate. This study proposes a framework that combines EnergyPlus with Google Fusion Tables to generate and visualize potential cost savings at state level when storage and TOU are present. It specifically uses California as a case study, showing annual potential cost savings up to 350, and storage capacities up to 17 kWh for new residential buildings. This study allows homeowners to estimate their potential cost savings when using energy storage and current trend towards TOU.
Pages: 2775 - 2781