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Posts Tagged ‘Wind Theft’

Orsted photo: wind wakes trailing turbines at Vattenfall’s Horns Rev wind farm offshore Denmark

A previous post on wind theft and a recent BBC article point to the rather limited understanding that wind developers and govt land managers have about wind resource management including optimal turbine spacing and protection of correlative rights. Wind is considered a renewable energy resource, but the energy lost through inefficient operating practices is not renewable.

Given that the wake effect can extend for more than 100 km, reduce downwind energy production by >10%, and affect biological productivity, a better understanding of this phenomenon should have preceded the installation of thousands of turbines.

Wind resource management is reminiscent of the early years of oil production when the “law of capture” reigned supreme and wasteful production practices were a self-defense mechanism.

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Orsted photo: wind wakes trailing turbines at Vattenfall’s Horns Rev wind farm offshore Denmark

The oil industry has a long history of dealing with the correlative rights issues associated with oil drainage from competitive reservoirs. Similar issues are arising in the offshore wind industry.

Orsted believes ‘catastrophic wake losses’ threaten the existence of their Irish Sea wind farms, claiming that wakes from EnBW, BP, and RWE projects could shorten the life of Orsted’s assets. Note that wind wakes can stretch as far as 100 km.

Orsted claims that four nearby wind farms in the Irish Sea could result in a drop in Orsted’s annual energy production of up to 5.34%, and is seeking mitigation or compensation.

This is all rather familiar to the oil industry and its regulators, particularly the call for compensation!

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