The Catalogue Builds On Both The Earlier Edition Of The Power Guide And The Equipment Directory Produced For Training Courses By The Technology And Development Group Of The University Of Twente In The Netherlands. The Data Has Been Comprehensively Revised And Updated On The Basis Of Research Carried Out By Members Of The Technology And Development Group, Densi Tech Bv Of The Netherlands, And Intermediate Technology In The Uk. The Power Guide Will Facilitate Decision Making By Providing Guidelines Most Appropriate Renewable Energy Source As Well As Providing Information On Hundreds Of Products From Almost 500 Manufacturers And Suppliers In Over 40 Countries Throughout The World, Covering The Following Areas: Solar Photovoltaic Equipment Wind Pumps And Wind Generators Micro-hydro Equipment, Hydraulic Ram Pumps And Water Current Turbines Biomass Pre-treatment.