Therefore, for the public at large, saving power simply means remembering to turn off lights and unplug electronics that aren't in use. But the company's "contract customers," which include commercial high-rises, hospitals, schools, factories, and the communal facilities in multiunit residential high-rises, are subject to three different rates-peak, off-peak, and semi-peak.
但是集合住宅的公共設施、商辦大樓、醫院、學校、工廠等「契約用戶」，就有尖峰、離峰、半尖峰等 3 段時間的不同標準，而電費單上的其他數字，更藏有不少玄機。