Although wind and solar power increased 75 percent between 2013 and 2016, they still only provided 10 percent of the world’s electricity. Ocean energy could give renewable energy the boost it needs. The ocean energy sector is frothing with ideas, with hundreds of companies developing an extraordinary array of devices designed to harvest energy from the ocean’s tides, which form due to the moon’s gravitational pull. Tides are everywhere and are constantly occurring, making them an abundant resource that could become crucial as the world’s need for clean energy increases.