1. Ocean energy mainly includes tidal energy, wave energy, temperature difference energy, tidal energy, ocean current energy, salinity difference energy, etc.
2. Ocean energy comes from the gravity of the sun, moon and other planets or from solar radiation.
3. Ocean energy is characterized by significant reserves and regeneration.
4. The first use of ocean power was the tidal mill around the 11th century.
5. The Lens tidal power station built in France in 1966, with an installed capacity of 240,000 kilowatts, is the world's first successful commercial tidal power station.