Hydro Power

The water in a reservoir or lake, at a higher level than the water turbine, has potential energy. When released to flow down to the turbine it gains kinetic energy due to the movement of mass, then this is turned to mechanical energy in the turbine and finally to electrical energy in the generator

Solar energy is collected using solar panels made of photovoltaic cells. These cells convert sunlight into electricity through the photovoltaic effect. The electricity generated is then fed into an inverter, which converts it from direct current (DC) to alternating current (AC), making it usable for powering homes and buildings.

Hydroelectric energy is recovered by harnessing the power of flowing water to turn turbines, which are connected to generators that convert mechanical energy into electrical energy. Water is usually stored in a reservoir behind a dam and released through turbines to generate electricity as it flows downstream.

it grows in moist coniton in geothermal vents

Who says it is? It is additional. Hydro power can only be obtained at certain places where a large lake or reservoir can be used for the water supply, but solar is best obtained in a desert area like southern Arizona. So both have their places.

harnessing of tidal energy poses many problems . the rise and fall of water during tides is not high enough to generate electricity on a large scale . there are a very few sites that are suitable to build dams .

1. When there is no longer enough water in the river behind the dam to turn the turbines.
2. When the reservoir behind the dam silts up too much for the turbines to obtain water anymore. This eventually happens to all dams after several centuries.
3. When drought comes to the country.
4. When countries further up the river take the water for their own hydroelectric energy use, crop irrigation, or keep the water for their own people to drink.
5. etc.

Water doesn't make energy because energy can't be created or destroyed.

However we can use the kinetic energy of flowing water or the potential energy of water in a reservoir to generate electrical energy using a turbine and a generator.

Hydroelectricity is a method of producing electricity from flowing water. A large area of water - typically held behind a dam - is forced (by it's own weight) through a turbine generator, which makes the generator spin. When the generator spins, magnets attached to the turbine portion move past magnets mounted on the generator walls just outside the turbine. This produces electrical current, which is harnessed as electricity.

Hydropower is gathered by capturing the kinetic energy of flowing water, typically through the construction of dams or diversion structures. As water flows through turbines in these structures, the turbines spin and generate electricity. Hydropower is a renewable energy source that provides clean, sustainable power.

Wind energy is gathered using wind turbines, which consist of large blades mounted on a tower. When the wind blows, it causes the blades to rotate, which drives a generator to produce electricity. The electricity generated can then be stored or transmitted for use.

It depends how far you want to go, how fast, and how big your car is! But when you ask a vague question you get a vague answer... a lot. The energy density of hydrogen is much lower than gasoline, even when it is highly compressed.

OBAMA 08 OBAMA 08 OBAMA 08 -McLovin Ummm....McLovin didn't answer anything... *ahem* Anyway, hydrothermal energy is, to the extent of my knowlage, simply using hot water or steam that naturally occurs and somehow making it into usable energy. -Yuki

The selection of sites for hydroelectric power plants is based on factors such as water availability, topography for dam construction, environmental impact assessment, proximity to transmission lines, and economic feasibility. These factors help determine the potential for generating electricity efficiently and sustainably.

The runaway speed of a water turbine is its speed at full flow, and no shaft load. The turbine will be designed to survive the mechanical forces of this speed. The manufacturer will supply the runaway speed rating.

Oil doesn't conduct electricity. If you're looking to do something such as create a liquid cooling system, oil such as vegetable oil is a great option.

Tidal power can produce a significant amount of energy, typically ranging from 5-15 megawatts per turbine, depending on the specific design and location of the tidal power system. Overall, tidal energy has the potential to generate consistent renewable power due to predictable tidal patterns.

Hydropower works by capturing the energy from flowing water to generate electricity. Water flows through a dam, turning turbines that are connected to generators. The rotating turbines convert the water's kinetic energy into mechanical energy, which is then converted into electrical energy by the generators.

The calories or thermal units contained in one unit of a substance and released when the substance is burned.

and in (Mathematics & Measurements / Units)

The quantity of heat produced by the complete combustion of a given mass of a fuel, usually expressed in joules per kilogram.

A water wheel harnesses the energy of flowing water to generate power. The wheel is connected to a shaft that drives machinery or generates electricity. Water flows over or under the wheel, causing it to spin and convert the motion into usable energy.

Hydroelectric power is generated by harnessing the energy from flowing water, such as rivers or waterfalls. The water is directed through turbines connected to generators, which convert the kinetic energy of the flowing water into electricity. This process is a sustainable and renewable source of energy that does not produce greenhouse gas emissions.

Use of running water for mechanical energy has been used for centuries, so I guess when electricity was discovered and that it was useful, someone had the bright idea of connecting a waterwheel to a dynamo. This would have been in the mid 1800's sometime.

Some disadvantages of hydroelectric power plants include their impact on aquatic ecosystems and fish populations due to changes in water flow, displacement of communities and loss of land due to dam construction, and the potential for reservoir sedimentation to reduce operational efficiency over time. Additionally, hydroelectric power plants can be vulnerable to droughts and climate change, affecting their reliability as a renewable energy source.

The science behind hydroelectric power includes elements of physics. Given an existing dam with a reservoir and a power station, let's follow the action. Water is allowed to build up behind a dam. This creates potential energy. Releasing the water and directing it through turbines converts the potential energy into kinetic energy. This energy, which is mechanical energy, spins the turbines. Call that the "first stage" of the process.

The turbines are coupled to generators, and the mechanical energy of the turbines is converted into electromagnetic energy in those generators. The electromagnetic energy (or just "electricity" if you prefer) is routed to a transformer bank to step it up in voltage. The higher voltages allow for less power loss during transit, and the energy is transported to points of use. There, it is stepped down to relatively "safe" voltages and routed out to electrical equipment and devices.