This book presents a comprehensive review of energy research studies from authors across the globe, including recent research in solar ground radiation in greenhouses; the energy outlook in Malaysia; biodiesel production using heterogeneous catalysts; digital control system stimulation for nuclear reactor neutronic parameters; strategies to increase the viability of power generation using renewable energy sources; the current state of CPV in Spain as an alternative for producing solar electricity and evaluation of a new combined power generation system under CO2 emission constraints.