Naturally- Harnessed Electricity!
Naturally- Harnessed electricity means that electricity is created in the natural world. Naturally-harnessed electricity can not be controlled by humans. This type of electricity happens naturally without any human interference. Some examples are lightning and static electricty.
Human-harnessed electricity means that the electricity is produced or made by humans. Humans use electric generators to make electricity for lights and other purposes. Human-harnessed electricity can be controlled by humans. An example of this is electricity that we use for lights!