Energy fuels modern society, though it is often taken for granted. The issues surrounding energy supply are of paramount importance to governments the world over. While calls for "clean" energy technologies are rampant and loud, conventional sources like coal and oil remain the most feasible. However, research continues to plough ahead to find better and more efficient ways to keep the demand for energy met. Nuclear power is a perennially controversial but enticing possibility, although many nations seek to phase-out nuclear power, citing safety and environmental concerns. The energy industry and production are major economic components in any country, so all energy and electricity issues hold sway over us all. This book presents leading research on energy from around the world with an emphasis on tidal energy, energy efficiency and solar energy.