producing renewable electric energy is a kind of process & if a process requires something that that something may be able to perform that process ->  if producing renewable electric energy requires something then that something may be able to produce renewable electric energy  if producing renewable electric energy requires something then that something may be able to produce renewable electric energy & producing renewable electric energy requires renewable resources ->  renewable resources may be able to produce renewable electric energy  renewable resources may be able to produce renewable electric energy & if something may be able to do something else then that something has the potential to do that something else ->  renewable resources have the potential to produce renewable electric energy  renewable resources have the potential to produce renewable electric energy & geothermal energy is a renewable resource -> geothermal energy has the potential to produce renewable electric energy