Wind farms. Such a nice sounding term, isn't it? Farm. Conjures up images of lush pasture, wooden fences and happy animals. But these developments are NOT farms. They are corporate projects, to make money and keep the mining industry booming. Farms, when they're done properly, work
with nature, instead of destroying it. A wind turbine seems such a passive thing, doesn't it? Just standing there, spinning, letting the wind blow through it's blades. For free. But nothing is free. Something always pays the price. And this case its the environment, the planet and it's people. You could almost understand the greed behind it if they were supremely efficient machines, rewarding investment with megabucks returns, but all over the world wind farm operators are going out of business, especially when the government subsidies dry up.
Take Denmark, for example.
Here is the blurb: Denmark is known around the world as a wind turbine superpower. It has been an early mover with the largest per capita deployments and large entities to manage fluctuating output. Denmark has implemented the world's most ambitious target to reduce greenhouse gas emissions by 2030. But underlying this target is burning large amounts of biomass imported from abroad mainly the Baltics. New analysis from the Danish energy department show that biomass use exceeds international sustainability goals several times. Danish companies are now showing more interest than ever before to seek a more pragmatic and neutral stance towards nuclear power putting the Danish government in a conundrum about its anti nuclear policies. Johan Sollid, founder and chairperson of Foreningen Atomkraft Ja Tak (Nuclear Power Yes Please,) joins me to discuss Denmark’s energy quagmire and the growing support for nuclear in his country.
According to Betz Law, turbines are capable, because of the laws of physics, to operate at a maximum of 59.3% efficiency. And 25% of the energy produced is needed to run the internal lubrication pumps. 59.3% efficiency is because the turbine can only cope with wind of a certain strength, otherwise it shuts down. And of course, when there's no wind, it shuts down. Compared to nuclear energy, which is 99% efficient and has no wavering supply, wind energy is a complete dud.
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