Among the advantages of using onshore wind farms is that wind is available free of charge and appropriate technology is available to harvest energy from wind as noted by Sustainable Development Commission (2009). Moreover, although the initial costs of installing wind turbines are high, maintenance cost are relatively low after installation. It can also be used to generate power in rural areas where there is no power connection.Given the varying impacts to the humans, landscape aesthetics and the surrounding environment that implementation of such project poses; it is critical that environmental managers employ tools to manage this impacts. Thompson (2002) lists various tools and methods that can be used for environmental management and environmental performance improvement. To manage the impacts of the 40 turbine onshore wind farm project; EIA, LCA and GIS as the most appropriate environmental management tools. EIA has been selected because it helps to predict the impacts of a project and propose mitigation measures while GIS allows environmental managers make decision based on spatial relationship of features. LCA allows decision makers to carry out a comprehensive assessment of the life cycle of the project thereby facilitating decision making.EIA is a tool used in decision-making whose main purpose is to not only identify and evaluate the likely environmental impacts of a given project (Glasson et al. EIA is used to aid in decision making in environmental management. It may also be defined as a study aimed at “identifying, predicting, evaluating, and communicating” information concerning those impacts a proposed project may have on the environment. It goes on to propose the appropriate mitigation measures before the project approved and implemented (Department of Environment Malaysia, 2010). It predicts the potential negative impacts, thereby giving the implementers an ample time to address the problems, at the planning and design stages of a project. Therefore Department of Environment Malaysia (2010) observes that EIA helps avoid “costly mistakes” that may arise during the implementation stage. The mistakes may be associated with environmental damages following project implementation or the required adjustments that may make the project environmental friendly (Department of Environment Malaysia, 2010). EIA mostly focuses on the environment.
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