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Resource Documents by Constable, John

Moroney, Lee; and Constable, John
Den Brook Amplitude Modulation Noise Condition
The noise most commonly associated with wind farms, and frequently complained of, is the repetitive swishing beat occurring at turbine blade rotation frequency, which is known as Amplitude Modulation (AM) of the aerodynamic turbine noise. In 2007 the Government commissioned the University of Salford and the Hayes McKenzie Partnership (HMP) to investigate AM noise by means of a survey of wind farm noise complaints lodged with local authorities. At the time of publication the resulting Salford report1 did not reveal . . . Complete article »

Constable, John; and Barfoot, Bob
UK Renewables Subsidies: A Simple Description and Commentary
The Renewables Obligation (RO) and Climate Change Levy (CCL) system of indirect subsidy provide very substantial additions to the income stream for renewable generators. A grasp of how this system motivates proposals for renewable energy generation is important, because it is only then that we understand the process of technology selection which eventually manifests itself in the form of proposals put before the planning system. The following analysis outlines the system, and notes that while the RO is complicated, it . . . Complete article »

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