With marine renewable energy
Japan is island among the seas in every direction, and, in the sea, abundant energy is saved.
It is thought that by utilizing these effectively, can promote the use as eco-friendly energy as a substitute for fossil fuel.
With marine renewable energy, we say available renewable energy among renewable energy in marine wind power, wave power, tide, ocean current, the marine space including marine temperature difference.
In the government, we announce "future approach policy about utilization promotion of marine renewable energy" in May, 2012, and it is the government bullet and, as one of the energy sources of supply, aims at practical use of the ocean renewable energy, and early practical use is expected.
We introduce representative thing of marine renewable energy below.
Marine wind-generated electricity
We establish wind-generated electricity facility on the sea and are structure letting you generate electricity. There are implantation type and floating form.
Strong sea area of wind becomes condition of setting.
Wave power generation
It is electricity generating system using vertical motion of wave. Sea area with wave height becomes condition of setting.
In the country, it is said that there is potential from Kanto on the Pacific side of Hokkaido.
Using passage of opportunity, it is method to convert to rotary energy by waterwheel, and to generate electricity.
Sea area that passage of opportunity is fast in becomes condition of setting.
In the country, it is said that there is potential in Seto Inland Sea and Northwest Kyushu.
Ocean current generation
Using flow of seawater, it is method to convert to rotary energy by waterwheel, and to generate electricity.
Sea area with ocean current becomes condition of setting.
In the country, it is said that there is potential at Pacific side, Tsugaru Channel of West Japan.
Ocean thermal energy conversion
It is electricity generating system using temperature difference of tegmental hot water of the sea and cold water of the depths.
In the country, it is said that there is potential in Okinawa, Amami Oshima, Ogasawara Islands.
In Saga, we call available renewable energy the sea energy (umiene UMIENE) for short from the sea.