How Much Energy Does the Sun Produce?

March 26, 2009
Sun's Energy

The Sun Is a Huge Ball of Energy

The Sun is about 865,000 miles in diameter. That's as wide as 109 Earths placed side by side! About 1 million Earths would fit inside the Sun.

It's hard to imagine the enormous amount of energy the Sun produces. Because its core is under a lot of pressure, hydrogen atoms are constantly colliding with each other at great speeds, fusing together to form helium, and releasing energy. Lots of these collisions occur, creating a ball of energy.

In just one second, the Sun produces about 118 times as much energy as the United States used in the year 2003! Only about one-billionth of the total energy that the Sun produces reaches Earth, but it is enough to enable us to live here.

See more facts about your Sun!


The Old Farmer's Almanac for Kids, Volume 2