And so, they all went back to their jobs, helping humans measure everything from the whisper of a breeze (0.01 Joules) to the mighty rays of the sun. Energy Units Explained - Reinhardt Home Heating
In the end, they realized they weren't competitors at all. They were all different ways of telling the same story: the story of being done and Heat being shared. From the tiny electron-volt dancing in a laboratory to the massive Terajoule powering a whole country, every unit had its own special place in the world of energy.
But Joule wasn’t the only one in town. Across the river in the , there was Calorie , a warm and friendly unit who spent her days heating up water. She was quite popular with the local chefs and athletes, always measuring the fuel in their food.
looked down at them all, boasting that he was equal to about 1,055 Joules .
High up in the , lived the Kilowatt-hour (kWh) . This giant was responsible for the entire city's electricity. He was a bit of a businessman, always showing up on monthly bills to tell families how much energy their lightbulbs and air conditioners had used.
In the , the British Thermal Unit (BTU) was the king of the furnaces. He was a bit old-fashioned, still measuring heat by how much it could warm up a pound of water, but he was essential for anyone buying natural gas or heating oil.