This makes HVDC preferable for siting wind turbines very far offshore. These effects are taken into account when siting wind turbines. Appropriate building siting and smaller building footprints are vital to an environmentally sustainable design. Controversies regarding the siting of the Green Line continued. Conspicuousness can also be reduced by siting masts near, or on, other structures. The second problem, regarding the siting of the lower gunports, could not be rectified. Often the siting of a castle could make mining difficult. Reprocessing does not eliminate the political and community challenges to repository siting. This effect should be considered in the siting of an HVDC converter station. In 1987 he was the project director for siting the Superconducting Supercollider, in North Carolina. Emphasis was also given to station siting, design, and use. There are three variants of 4&colon;2&colon;0 schemes, having different horizontal and vertical siting. The siting of some of the weaponry was poor. Other scholars suggest another explanation for the eccentric siting of the mausoleum. There are pictures of an earlier 19th century siting in the center of the nave.