They are both good. They both produce electricity without any carbon emissions, so they contribute nothing to the problem of global warming. They are both renewable, which means they don't cost anything to run, apart from day to day maintenance, and the power continues to come even after we use it. Both have disadvantages: solar needs the sun to shine, and tidal energy only happens a few times a day and only in suitable locations.
Historically, it was the Sun, which created the plant life and animal life used to make energy, and which formed fossil fuels. Even hydroelectric energy is dependent on solar heating to return water to its sources. And because we now have nuclear energy, the answer could be "from nuclear reactions" -- fusion on the Sun and fission in nuclear generators. This, however, neglects the use of tidal energy and geothermal energy. Tidal energy is caused primarily by the gravitation of the Earth and Moon, not the Sun. And geothermal energy is drawn from magma formed by crustal movements, which ultimately are driven by the Earth's hot core. The heat there is a combination of radioactive heat, tidal heat from the Sun's gravity, and energy left from the formation of the planet. The ultimate source, therefore would have to be "gravity" because it formed the Sun and planets, keeps fusion going, moves the tides, and keeps the Earth's core hot enough to produce tectonics.
Sun
The sun is the source of most of the energy on Earth. Oceans come second.
Photosynthesis is the act of trapping the light energy from the sun and turning it into chemical energy in the molecule starch. The energy it traps comes from high energy photons.
No, because plants receive their energy from the sun via photosynthesis.
Tidal energy, geothermal energy, and nuclear energy are examples of energy sources that do not directly come from the sun. Tidal energy is generated by the gravitational forces of the moon and sun, geothermal energy comes from heat within the Earth's crust, and nuclear energy is produced by splitting atoms in a controlled reaction.
tidal
Tidal Waves
Tidal energy is created by the gravitational forces of the moon and sun on the Earth's oceans, causing tides to rise and fall. This movement of water generates kinetic energy that can be harnessed and converted into electricity using tidal energy technologies such as tidal turbines or barrages.
Tidal energy, heat from the interior of Earth, and nuclear energy.
Tidal energy can be considered a form of kinetic energy because it is derived from the movement of the tides, which is driven by the gravitational interactions between the Earth, moon, and sun.
Tidal energy comes from the energy of Earth's rotation. This is unrelated to the Sun's radiation. Nuclear energy comes from elements that are available on Earth - it doesn't depend on the Sun's radiation either. Geothermal energy comes from these same elements, which gradually decay, keeping Earth's interior hot.
yes, hydro (water) and wind energy are 2 examples
Tidal energy comes from the energy of Earth's rotation. This is unrelated to the Sun's radiation. Nuclear energy comes from elements that are available on Earth - it doesn't depend on the Sun's radiation either. Geothermal energy comes from these same elements, which gradually decay, keeping Earth's interior hot.
Tidal energy is considered a renewable energy source because the gravitational forces of the moon and sun that create the tides are continuous and predictable. As long as the Earth has these celestial bodies and continues to rotate, tidal energy will persist.
Three inexhaustible sources of energy are, wind, sun (solar) and tidal. :)
Yes, tidal energy is considered an indirect form of solar energy because it is caused by the gravitational interaction between the sun, moon, and Earth. The gravitational forces of the sun and moon create tides in the Earth's oceans, which can be harnessed to generate electricity.