Wind
Figures
Figure 4.1 Global annual gross wind energy output against energy ratio (Er). Er is the ratio of energy produced to the direct and indirect input energy. Energy is shown as both a cumulative sum for the marginal Er (left axis) and distribution in Er (right axis). In the unconstrained case, all land area is considered; in the land constrained case, sensitive areas such as forests and wetlands, as well as urban areas, irrigated cropland and pasture are removed. Removing these areas has the effect of reducing the gross amount of energy produced. Source: Moriarty, Patrick and Damon Honnery. 2012. What is the global potential for ...
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