By HDK / Published on Fri, 2009-11-20 20:24
The size of the transition/sealing end compound would depend to some extent on the number of cables, but if two circuits of three cables are used, the analogy is more like a “tennis court”; if four cables are used the analogy is more like a “football field”. If the transition compound is placed in a woodland area, it can be easily camouflaged from view. In Denmark, for example, the compounds had to be camouflaged through tree and shrub planting.
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By HDK / Published on Tue, 2009-08-04 14:23
From the Global Energy Assessment initiative, we learn that in urban areas, energy density is consistent with that of fossil fuel infrastructures and conversion devices, but it is between a factor 20 to 200 higher than typical energy densities resulting from harvesting renewable energy flows. The figure shows energy density in Europe; note that the renewable supply density threshold is 0.5-1 W/m2.
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By Hans De Keulenaer / Published on Sun, 2006-02-12 08:11
Today, land is used for living, working, recreation and most importantly, food production. A relatively new use is growing biomass for energy use, which requires vast areas of land because of the diffuse nature of sunlight, and the low efficiency of plants capturing it. There is a direct competition for agricultural land between energy and food. Land requirements for both uses depend on consumption and production per square meter, 2 parameters which vary widely.
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