根据国际可再生能源机构（IRENA）的数据，我们只需利用2%的海岸线，就能每年生产4383太瓦时的海洋电力，足以满足全世界4%的电力需求。

According to the IRENA (the International Renewable Energy Agency) , by just using 2% of our coastlines, we can produce 4,383 TWh of ocean power each year, enough to meet 4% of the world's electricity needs.

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