Energy sources are essential to maintain the life we live today: Transport, the health industry, households and industries of all kinds depend on different energy sources.
Yet, producing and delevering energy may be a costly affair. CNN Money now introduces an article on the world's ten most costly energy projects. Did you know that constructing the Hoover Dam required a budget of 49 million dollars when it was built in 1936? This is equal to 825 million dollars with today's inflation!
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