Wind farme Assignment Example | Topics and Well Written Essays - 1000 words

Wind farme - Assignment Example he farm, mean annual wind speed at elevation, turbine power curve, rated power capacity, investment required, operation and maintenance cost (O&M)/ year, durability and useful life. Covering the wind profile, total annual energy output per turbine, total energy output, capacity factor, uptime percentage, average annual cost, value of electricity, annual O&M cost, annual inflation rate Based on wind maps, the mean annual wind speed can be determined. In fertile areas, quite prominent for energy harvesting; 100 meter Mean Annual Wind Speed Map, 70 meter Mean Annual Wind ... Mean Annual Power Density Map; 30 meter Mean Annual Power Density Map. To illustrate, a basic analysis of the Buckeye Wind Farm, comprised of 54 wind turbines planned for Champaign County, Ohio. The wind maps provided by the Ohio Power Sitting Board indicate that the mean annual wind speed in the area of the wind farm is approximately 7.5 m/s. Based on this, the analysis indicates a non-existent ROI because the wind turbines do not produce enough reliable electricity to pay for the investment required within a reasonable amount of time. In short, the annual expectation of 439,852 MWh of electrical energy generated does not generate enough revenue at regular average rates to overcome the O&M costs and pay back the $380 million investment within an anticipated 20 year lifespan of the turbines. It can therefore be expected that government grants and subsidies will have to be used to offset the losses, and that the cost of electricity will have to be increased. The simple economic analysis does not account for the cost that will be incurred to maintain and operate a traditional back-up system for generating power when the wind is not blowing adequately, and for the added cost and inefficiency of cycling this back-up system on and off to balance the supply load against the variability of the wind generated power. The lowest wind conditions and the lowest power output will occur in the summer, when

Human Figures in Landscapes Article Example | Topics and Well Written Essays - 2000 words

Human Figures in Landscapes - Article Example These three paintings are placed on the timeline between the 1950s to almost the present time. The immediate years post-war witnessed a heightened level of cultural nationalism during which aboriginal cultures gained considerable weight (Foss, Paikowsky& Whitelaw, 2010, 357).The selected paintings also show a chronological growth from the 1950s to the present time in painting a theme like this. The paintings extend from 1956 to 2007 and that is a time in which a lot of things changed and many new techniques and schools emerged. But in my paper, I do not want to link these paintings to any such type of restrictions along the lines of schools of arts or any specific technique. I am going to compare them with each other only on the basis of the theme that I selected for the paper and that is Human figures in landscapes. So I will just compare them according to how well the theme is presented in all three of them.The first painting that I chose is isSun Dance Scene, Blood Reserve by Gera ld Tailfeathers. Tailfeathers was a Native Canadian artist and so he was close to heart with the Native aboriginal culture and their traditions. Being one of the very few Native Canadians who painted, he fulfilled his duty to the great colorful lost culture by painting their traditions. It is painted on paper using watercolors and watercolor is a wise medium for this painting because it gives the painting a tinge of easy simplicity and vividness. The painting shows a scene from the Native culture of Blood Reserve.