As a result of greenhouse effects and the global energy crisis, discovering sources of clean, renewable energy and developing daily life applications have become critical tasks. Now-days the amount of fossil fuel has been depleting at an alarming rate in contrast the demand of fuel increasing enormously. So, it is the time to think about alternative and sustainable sources of energy. There is increasing interest in the use of solar-hydrogen systems for remote area power supply or other standalone applications. The main attractions of such systems are zero greenhouse gas emissions. Hydrogen fuel cells generally have high efficiency because they directly convert chemical energy to electricity which leads to a reduction in pollution, cost and fuel waste. This book emphasis on economic production of Hydrogen and utilization of it in fuel cell to produce electricity.

Ashfaq Mohammad Saad and Hafez Nasim Bin Jasim both completed their graduation from Mechanical Engineering department of RUET, Bangladesh, 2016. This work is completed under supervision of prof. Dr. Md. Shamim Akhter, former Dean of Mechanical Faculty, RUET.