With all these reasons, it seems that renewable power plants will revolutionize the old ways to generate electricity, however, solar or wind power plants still have some problems. Sun and wind is not always available, if the weather is cloudy and calm both power plants will be useless, since nothing can generate them to produce electricity.
V. Conclusion.
World excess capacity is at a record low, the capacity is concentrated in a few OPEC member countries, and it takes time to distribute the oil to the dependant countries. These three reasons can exacerbate the shortages in world and create a potential crisis.
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