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, . <br /> I POWER <br /> Established 1882•Vol.158•No.12 December 2014 <br /> www.powermag.com <br /> It may not look like the power plants you are familiar with but the Hometown BioEnergy 1 <br /> plant in rural Minnesota is in the right place at the right time with the right operating pro- <br /> file. Courtesy:Avant Energy Inc. <br /> COVER STORY. RENEWABLE TOP PLANTS A E <br /> 22 Agua Caliente Solar Project,Yuma County,Arizona <br /> This desert solar photovoltaic(PV) plant is noteworthy not just because it holds the <br /> current title for largest PV plant in the world but also for its impressive capacity fac- ' <br /> tor and advanced control system. <br /> 24 Ashta Hydropower Plant,Shkoder,Albania <br /> .„, <br /> Although new large-scale hydropower projects are becoming rarer and often face 28 <br /> considerable opposition on environmental grounds, carefully sited small-scale <br /> hydro projects like this one,which uses a modular turbine technology,can result in <br /> net environmental benefits. <br /> 28 Hometown BioEnergy,Le Sueur,Minnesota <br /> This plant starts by turning waste products into fuel and then takes every oppor- <br /> tunity to recover otherwise wasted heat to maximize the efficiency of other plant <br /> systems.In addition to selling power,the plant sells solid byproducts to other types - <br /> of renewable generators. <br /> 30 London Array Offshore Wind Farm,Outer Thames Estuary,UK <br /> Despite rough seas and tough economic conditions, the world's largest offshore <br /> wind farm is online and supplying renewable power to an island nation that leads <br /> the world in offshore capacity and has plans for even more. <br /> 32 Solana Generating Station,Maricopa County,Arizona <br /> Currently the world's largest parabolic trough technology solar generating plant with Ii - <br /> thermal energy storage, Solana offers dispatchable power to a state famous for its = - - - - <br /> sun. Now,when summer sun prompts Arizonans to turn on their air conditioning, ,C ..rte . - - <br /> the sun can also cool their buildings. ' r <br /> ' -- --".........„ <br /> SPECIAL REPORTS __ _ <br /> WIND POWER <br /> 34 Wind Turbine Generator Maintenance:What to Expect and Why <br /> Whether their fleet is large or small, increasing numbers of generators are learning <br /> how wind turbines are different from the machines they are familiar with. Under- <br /> standing the unique maintenance requirements is the key to minimizing mainte- -g <br /> nance headaches. "`i <br /> l <br /> k <br /> pip <br /> ' , <br /> 61 . . <br /> ., •.` <br /> BUYERS' GUIDE <br /> „. <br /> ,. ,- <br /> December 2014 I POWER www.powermag.com <br />