The new factory has significantly increased its consumption of energy.

consumption 是名词，来自动词 consume（消耗、消费），指"消耗量"或"消费量"。这个词由前缀 con-（表示"完全"）和词根 sume（来自拉丁语 sumere，意为"拿取"）组成，字面意思是"完全拿取"，引申为"消耗"。