Abstract
The purpose of this paper is to study the ways of electrical energy saving in office by 1) studying the payback period of replacing certain electric lamp with the new ones with higher technology (e.g. LED lamp) and also comparing their effects, 2) studying the benefit of using individual manual lighting controls, the individual manual switch for controls individual lights, 3) collecting the data of how much electrical energy using for any electrical appliances (e.g. lamp, air condition, computer, printer, television, refrigerator, etc.), then calculating approximate electricity costs from electrical energy using for any electrical appliances, the data provided for awareness of the people who use electrical appliances in office for reducing their electrical energy using.
Keywords
electricity saving; office; lighting