There are actually different forms of energy that are available. Some are saying that there may be other forms of energy that have not been discovered yet but there are some forms that are common and people can be familiar with. There are six forms that are usually considered such as chemical, electric, mechanical, sound, radiant, and atomic. There are also some people who are saying that dark energy exists.
There may not be enough information to provide this but this is true. Dark energy does exist. In fact, it is the reason why the earth is still continuing to rotate on its own and revolve around the sun. The solar system may be in chaos without it.