Is renewable energy a misnomer?

Since energy cannot be created or destroyed, it's impossible to have an energy source, let alone a 'renewable energy source'. In this article, Eike Roth from Energie Fakten shares his energy philosophy.

http://www.sealnet.org/s/11.pdf

 

See also from the same author a reference article on thermal power plant efficiency:

http://www.sealnet.org/s/9.pdf