Geothermal energy is thermal energy generated and stored in the Earth. Thermal energy is the energy that determines the temperature of matter. The geothermal energy of the Earth's crust originates from the original formation of the planet and from r... adioactive decay of materials. The geothermal gradient, which is the difference in temperature between the core of the planet and its surface, drives a continuous conduction of thermal energy in the form of heat from the core to the surface. The adjective geothermal originates from the Greek roots γη, meaning earth, and θερμος, meaning hot.Earth's internal heat is thermal energy generated from radioactive decay and continual heat loss from Earth's formation. Temperatures at the core–mantle boundary may reach over 4000 °C. The high temperature and pressure in Earth's interior cause some rock to melt and solid mantle to behave plastically, resulting in portions of mantle convecting upward since it is lighter than the surrounding rock. Rock and water is heated in the crust, sometimes up to 370 °C
Hydro-power or water power is power derived from the energy of falling water and running water, which may be harnessed for useful purposes. Since ancient times, hydro-power has been used for irrigation and the operation of various mechanical devices... , such as watermills, sawmills, textile mills, dock cranes, domestic lifts, power houses and paint making.Since the early 20th century, the term has been used almost exclusively in conjunction with the modern development of hydro-electric power, which allowed use of distant energy sources. Another method used to transmit energy is by using a trompe, which produces compressed air from falling water. Compressed air could then be piped to power other machinery at a distance from the waterfall. Hydro power is a renewable energy source.Water's power is manifested in hydrology, by the forces of water on the riverbed and banks of a river. When a river is in flood, it is at its most powerful, and moves the greatest amount of sediment. This higher force results in the removal of sediment and other material from the riverbed and banks of the river, locally causing erosion, transport and, with lower flow, sedimentation downstream
Petroleum is a naturally occurring, yellow-to-black liquid found in geologic formations beneath the Earth's surface, which is commonly refined into various types of fuels. It consists of hydrocarbons of various molecular weights and other organic co... mpounds. The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that are made up of refined crude oil. A fossil fuel, petroleum is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock and subjected to intense heat and pressure.Petroleum is recovered mostly through oil drilling. This comes after the studies of structural geology, sedimentary basin analysis, reservoir characterization. It is refined and separated, most easily by distillation, into a large number of consumer products, from gasoline and kerosene to asphalt and chemical reagents used to make plastics and pharmaceuticals. Petroleum is used in manufacturing a wide variety of materials, and it is estimated that the world consumes about 90 million barrels each day
Solar is nuclear except youre using someone elses generator that happens to be reacting several million miles away. Theres no control there ... Only leeching. Its on par with Oil save for the fact that itll last longer.
That seems to me at least a little optimistic. Nuclear energy is not enough to power even our current electrical demands, when the supply of Uranium runs much lower, it would quickly become less and less viable as an energy source.
Thats why Id say geothermal is the way to go ... So long as you dont outgrow the capacity your planet has for it. It exists in some form as long as the matter that makes up your planet exists. Its much closer a symbiosis than any of the others, unless you have an effective means of recycling those other sources.