Primary Sources Of Energy

Primary sources of energy are the sources that are found in natural form. There are various sources that are found in their natural form and are ready to be used directly. Some of the best examples are wood which can be used directly to generate heat. This heat can be used for several purposes like cooking, burning and so forth. In the same way coal, winds, rivers and earth heat can also be used in different forms.

All in all, these sources are ready to use in their natural form and are being used from ancient times by our ancestors. Primary energy can be renewable or non renewable.

Below is a chart on usage of primary energy ----

 

World Total Primary Energy Supply