Tierr@_de_N@die: Beyond sun and wind energy there are further sources of energy to be optimized specially in termes costs. Tidal energy is one of them and the Australian enterprise Mako has already some products to offer.
Australia is famous for its beaches and exhilarating surf. But the ocean offers more than just a surfer’s paradise: its tides are also a source of renewable energy.
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.
Source (edition.cnn.com): How Australia could harness its tides for energy