There have been some extravagant claims that wind farms may dramatically change our weather patterns and add to the challenges of climate change, but researchers in France have found that any changes would be so subtle that they’ll be less than the normal variabilities in weather that we experience from year to year.
Concerns that giant wind farms aimed at easing climate change in fact aggravate the problem are misplaced, according to a scientific study.
In the past four years, several investigations have suggested that — on a local scale — a wind farm can slightly raise temperatures and boost rainfall through the way its wake mixes layers of warm and cold air.
Ever wondered how much sound a wind turbine really makes? If you’ve not yet had an opportunity to experience it for yourself, Simon Mahan makes some relative comparisons with the everyday sounds in our lives, and notes that sensible regulations afford a level of protection for nearby residents while allowing responsible wind energy development.
It’s sometimes suggested that the life-cycle energy inputs of renewable technologies can well exceed their outputs – an argument that some attempt to use against wind turbines, as well as solar PV modules. In this article by Mark Diesendorf we find a clear explanation of just what ‘life-cycle energy inputs’ are, how they may be calculated, and how energy payback periods of various technologies compare. The figures may surprise you, and yet another myth bites the dust!
One of the many myths propagating about renewable energy (RE) systems, especially solar photovoltaic electricity, is that the life-cycle energy inputs are greater than or comparable with the lifetime energy outputs. Is it generally true and, if not, under what special circumstances would it be reasonable?
When VCAT handed down its finding for Infigen’s Cherry Tree Range wind farm at the end of November some Mitchell Shire residents were quick to air their views on the outcome. Last week (on 4th December 2013) the Seymour Telegraph published a two page article about the case, incorporating views from across the spectrum of opinion, including two letters to the editor.
The most interesting places on Earth are the subduction zones where tectonic plates of science and emotion scrape relentlessly. Buried in these dynamic boundaries we find the most telling insights into human nature. Wind energy spans the continents of science and sentiment, and discourse is dominated by this violent collision of empirical reality and unbridled passion.
Though living full time in this fissure might seem unenviable, I guarantee it is stirring. Yesterday, the plates grated once more, as the South Australian Environmental Protection Agency (SA EPA) released the long-anticipated results of their study into low-frequency noise levels at Waterloo Wind Farm.