Heat from the Earth
Advantages are that you are using the earths natural resources of heat from the inside of the earth to create energy it is a renewable resource that doesn't produce any pollution. It can support jobs for workers at the power plant. The United States has many places that it could use this resource and many other countries already use this resource.
Disadvantages are that some harmful gases. It is not available in all locations. It can disrupt the local ecosystem where the plant is located.