Analysis of Electric Energy Consumption Patterns: A Case Study of a Real Life Office Building

Abstract

Electric energy consumption shares a great portion of commercial building energy. Electric energy saving is essential to reduce total energy consumption in commercial buildings. To draw energy saving methods, it is necessary to monitor real energy consumption patterns and analyze the results. We monitor the lighting and non-lighting energy consumption of eleven zones in a real working office building every fifteen minutes during eleven months. We observe and analyze the monthly and daily energy consumption patterns of all zones and draw several feasible energy saving methods. Moreover, the lighting and occupancy are monitored simultaneously in detail to investigate the unnecessary energy consumption. It shows the possibility of a great amount of energy saving. Because we analyze the energy consumption patterns in all zones, the drawn energy saving methods are applicable to the current building with some added infrastructure and expandable to other similar office buildings. Our result is expected to contribute to reducing the energy consumption in buildings.

Occupant centered lighting control for comfort and energy efficient building operation

“…Many works have shown that the integration of such devices alongside a controller is able to achieve significant savings in energy consumption. Simulations have shown that it is possible to achieve energy savings of up to 38% with occupancy sensors compared to manual switching [5,6] while an occupation study by Han et al reports possible savings of up to 40% [7]. An experimental study done by Jennings et al reports 20-26% savings [8].…”