Of the
individual countries looked at (Austria, UK, Germany, USA), Austria produces
the most renewable energy, in terms of proportion. Unsurprisingly, given its
area, the USA produces the most renewable energy. The USA was second only to
China in its investment in renewables, spending $51 billion (around 41 billion
Euros) in 2011.
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Perhaps the answer lies in Austria’s geography – Austria is mountainous, to a degree that Britain and Germany are not – 68% of Austria’s land is above 500m. The majority of its hydroelectric power stations are in mountainous regions. Similarly, most of Britain’s hydroelectric power plants lie in mountainous regions – in Scotland and Wales, largely.
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Is
hydroelectric the answer, though? Germany has invested heavily in renewable
energy – 200 billion Euros have been pledged to build offshore wind farms.
Indeed, Germany’s investments appear to have been successful – it now produces
nigh on four times the energy from renewable sources as the UK and well over
twice as much as Austria.
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Austria, as
can be seen from the graphs, has never produced any nuclear power, after a
referendum in 1978, deciding that the Zwentendorf Nuclear Power Plant was never
to be used and since then, Austria has never operated a nuclear power plant. An
interesting twist in Zwentendorf’s tale is that it has become, at least for the
present, Austria’s largest solar power station.
Another
factor to take into consideration is that most renewables (wind, solar,
hydroelectric, for example) cannot be used constantly - they depend on the time
of day, weather, etc.
It is obvious that there are still issues to be
solved, with regard to providing energy, even through renewable sources – careful
consideration will still be needed on how to provide power when renewable
sources currently cannot – either new ways of generating energy need to be
found, or further investment is needed in geothermal, biomass, or nuclear
energy.
All graphs based on data from US Energy Information Administration.
All graphs based on data from US Energy Information Administration.
If the current grid is vulnerable to collapse and electromagnetic pulse, is in less expensive to build an entire new system, or repair a massively damaged one?
ReplyDeleteI'm not sure if I would trust a system of that size that is built entirely from Scratch. So, besides of the high cost, it is a question of feasibility. Currently, the idea is to improve the existing grid, especially with regard to renewables, with minimal cost.
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