Planetary energy

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The different celestial bodies, in particular our moon, exchange mutual forces with Earth. The motion of the celestial bodies results in continuously varying forces at any specific point on the Earth's surface. The tides are the most obvious indicator of these forces. The movement of enormous water masses in the oceans creating the tides involves enormous amounts of energy.

Tidal energy can be used by power plants on coasts with high tidal ranges. At high tide, water is let into reservoirs and is prevented from flowing back as the tide ebbs, creating a potential difference between the collected water and water outside the reservoir. The collected water is then released though turbines into the sea at low tide. The turbines drive electric generators to produce electricity. Today there are only a few tidal power plants in operation.

Annual solar irradiation

Annual solar irradiation

Global annual energy demand,.

Figure 1.9 Energy Cubes: the Annual Solar Irradiation Exceeds Several Times the Total Global Energy Demand and All Fossil Energy Reserves

The largest tidal power plant, with a capacity of 240 MW, is situated at the Rance estuary in France. However, tidal power plants always have large impacts on nature. The amount of power that can be theoretically produced by tidal power plants globally is relatively low.

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Renewable Energy Eco Friendly

Renewable Energy Eco Friendly

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable.

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