Among those harnessing this tidal potential is Sydney-based Mako Energy. The company makes underwater turbines ranging between two and four meters in diameter. One turbine operating in constantly flowing water can produce enough electricity to power up to 20 homes. Their design enables them to generate electricity even in slow-flowing water, meaning they could be used in rivers and irrigation canals as well as the ocean. “We’re developing turbines at a scale where they can be deployed easily in remote communities, coastal businesses, island communities and resorts,” Douglas Hunt, managing director of Mako Energy, told CNN Business. An alternative to coal? Although tidal energy is still in its infancy, it could help to reduce Australia’s dependence on

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