From the reviews: "Sangster (emer., Electromagnetic Engineering, Heriot-Watt Univ., Scotland) uses nontechnical language and easy-to-follow logic to assess the limitations of different renewable energy resources and to address one of the main unsolved issues of the renewable energy industry: the intermittency of renewables and the storage problem. ... concludes with suggestions to policy makers and researchers in the renewable energy field. ... The book can serve as a complementary resource for upper-level undergraduate and graduate-level energy courses. ... Summing Up: Recommended. ... general readers." (M. Alam, Choice, Vol. 47 (11), August, 2010)