This is the most comprehensive guide ever written on renewables technology and engineering, intended to cater for the rapidly growing numbers of present and future engineers who are keen to lead the revolution. All the main sectors are covered - photovoltaics, solar thermal, wind, bioenergy, hydro, wave/tidal, geothermal - progressing from the fundamental physical principles, through resource assessment and site evaluation to in-depth examination of the characteristics and employment of the various technologies. The authors are all experienced practitioners, and as such recognise the cross-cutting importance of system sizing and integration. Clear diagrams, photos, tables and equations make this in invaluable reference tool, while worked examples mean the explanations are well-grounded and easy to follow - essential for students and professionals alike. ntents: Energy and development: concerns of the current millennium Renewable energy utilization: desirability, feasibility, and the niches Review of basic scientific and engineering principles The solar energy resource Solar photovoltaic technology Solar thermal engineering Elements of passive solar architecture Wind energy resources Introduction to wind turbine technology Small hydro: resource and technology Geothermal energy, tidal energy, wave energy, and ocean thermal energy Bio-energy resources Thermochemical conversion of biomass Biochemical methods of conversion Liquid fuels from biomass: fundamentals, process chemistry, and technologies