Energy Efficiency Concepts

noun a measure of electrical energy equivalent to a power consumption of 1,000 watts for 1 hour

• The electricity bill is calculated in kilowatt hours.
• I used up a lot of kilowatt hours running the air conditioner all day.
• I gotta watch my kilowatt hours if I want to keep the electricity bill low.
• His energy level was like a kilowatt hour, always at maximum capacity.

noun a powered rail vehicle used for pulling trains

adjective relating to locomotion or capable of moving under its own power

• The locomotive pulled a long line of freight cars through the mountain pass.
• I love watching the old locomotive chug along the tracks at the train museum.
• That locomotive is a real powerhouse, it can haul some serious cargo!
• Her determination was like a locomotive, unstoppable and powerful.