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A list of 10 key facts about energy issues.
1. $1 invested in more efficient electrical appliances can save up to $3.50.
2. Around 80% of the global energy mix comes from fossil fuels.
3. Around 80% of China’s electricity comes from coal-fired power plants.
4. Transportation fuels account for two-thirds of global oil consumption.
5. With some 900 billion tons left, coal is the most abundant fossil fuel.
6. Hydropower accounts for around 20% of the world's electricity generation.
7. Over 80% of all renewable electricity is produced by hydroelectric dams.
8. Solar energy reaching Earth every 20 days exceeds fossil fuel reserves.
9. Wind power produces about 1% of all electricity consumed worldwide.
10. Denmark covers roughly 20% of its electricity needs with wind energy.
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