The Future of Renewables at Sea

Why Marine Energy

Reducing our dependence on fossil fuels can only be a positive thing. There are plenty of renewable alternatives currently in use or being developed which brings us closer to having a viable alternative to oil. With all movement being energy, the world’s tides, ocean waves and river currents all have potential energy that can be used to drive turbines to produce electricity. With marine energy, the power will always be available for as long as the tides continue to ebb and flow. 

Types of Marine Energy

Wave Power

Harnessing wave power can be difficult, especially when it comes to converting it into large amounts of electricity. However, there have been a few solutions that’ve been developed in order to use the strength of the waves. In a wave power station, the waves enter a water chamber that causes the air to rise and fall, this then forces the air to rush in and out of the top of the chamber.  The air then turns a turbine which goes on to turn a generator.

Tidal Power

The tides of the sea naturally move a large amount of water every day. Being able to harness this energy would provide up to 20% of Britain’s needs, with a reliable and plentiful source of energy there are constant new developments within tidal power. The main downside with tidal power is mainly due to the fact that power can only be generated for 10 hours a day, however with tides being predictable you can harness power from other forms of marine energy while the tidal power station is offline.

Offshore Wind Power

With higher wind speeds offshore compared to land, energy is generated more efficiently. On top of this there’s less of a risk of the wind turbines being an eyesore or taking up space that could be used for housing. When combined with other forms of renewable energy at sea, offshore wind power provides another viable option.