The first Power Bar was developed in 1983. PowerBar is a nutritional bar intended to help fuel your body so you can reach your optimal performance. The sports bar industry has revolutionized the way we eat when we exercise. But even with all of the competition, PowerBar has been one of the fastest growing sports bar companies in the world. In 2000, only 17 years after releasing their first bar, PowerBar sponsored the Olympics. It seems like everyone loves good-for-you, great tasting Power Bars.