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Gravity-based batteries will help store excess energy without harming the environment
During the development of renewable energy sources, such as solar and wind, there is a need to store excess energy. Traditional storage methods, such as lithium batteries, have a number of disadvantages: they are expensive, harmful to the environment and limited in scale. Therefore, scientists are looking for new solutions that are more effective, environmentally friendly and affordable.
One of the free ways to get energy is gravity of the Earth. Gravity-based energy stores use gravity to store and release energy.
This method of energy storage is already used in storage hydroelectric power plants (NPPs), where water rises to high altitudes with pumps and then descends through turbines to generate electricity. NPPs make up more than 90% of the world's energy storage capacity. However, they have significant limitations: they require high costs for construction and operation, as well as specific geographical conditions - steep terrain and a large amount of water.
Gravity-based batteries have great potential for the development of renewable energy in the world. They can be placed almost anywhere where there is height or depth. They can be used to smooth out peaks of supply and demand for electricity, as well as to maintain network stability.
The principle of their work is that if there is an excess of energy from renewable sources, the system raises the heavy block to a certain height, accumulating potential energy. When energy is needed, the load drops down, turning potential energy into kinetic and then electrical energy with the help of a generator.
A gravity-based battery can be a more versatile and cheaper alternative to NPPs. Any heavy material, such as concrete blocks, can be used as cargo. Any vertical structure, such as a tower or mine, can be used as a height. The gravity-based battery does not pollute the environment and is not subject to wear or corrosion.
Work is currently underway to create two large-scale gravity-based battery projects in the United States and China. In the United States, Energy Vault is building a 150 m high tower that will lift and lower blocks of concrete weighing 35 tons each. The total storage capacity will be 80 MWh. The company claims that its battery will cost half the price of lithium batteries and has a service life of up to 40 years.
In China, Gravitricity is building a gravity-based battery in an abandoned mine 1.5 km deep. Two loads weighing 12 tons each will be suspended in the mine, which will be lifted and lowered with the help of electric motors. The total storage capacity will be 4 MWh. The company claims that its battery will have a service life of up to 50 years.
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During the development of renewable energy sources, such as solar and wind, there is a need to store excess energy. Traditional storage methods, such as lithium batteries, have a number of disadvantages: they are expensive, harmful to the environment and limited in scale. Therefore, scientists are looking for new solutions that are more effective, environmentally friendly and affordable.
One of the free ways to get energy is gravity of the Earth. Gravity-based energy stores use gravity to store and release energy.
This method of energy storage is already used in storage hydroelectric power plants (NPPs), where water rises to high altitudes with pumps and then descends through turbines to generate electricity. NPPs make up more than 90% of the world's energy storage capacity. However, they have significant limitations: they require high costs for construction and operation, as well as specific geographical conditions - steep terrain and a large amount of water.
Gravity-based batteries have great potential for the development of renewable energy in the world. They can be placed almost anywhere where there is height or depth. They can be used to smooth out peaks of supply and demand for electricity, as well as to maintain network stability.
The principle of their work is that if there is an excess of energy from renewable sources, the system raises the heavy block to a certain height, accumulating potential energy. When energy is needed, the load drops down, turning potential energy into kinetic and then electrical energy with the help of a generator.
A gravity-based battery can be a more versatile and cheaper alternative to NPPs. Any heavy material, such as concrete blocks, can be used as cargo. Any vertical structure, such as a tower or mine, can be used as a height. The gravity-based battery does not pollute the environment and is not subject to wear or corrosion.
Work is currently underway to create two large-scale gravity-based battery projects in the United States and China. In the United States, Energy Vault is building a 150 m high tower that will lift and lower blocks of concrete weighing 35 tons each. The total storage capacity will be 80 MWh. The company claims that its battery will cost half the price of lithium batteries and has a service life of up to 40 years.
In China, Gravitricity is building a gravity-based battery in an abandoned mine 1.5 km deep. Two loads weighing 12 tons each will be suspended in the mine, which will be lifted and lowered with the help of electric motors. The total storage capacity will be 4 MWh. The company claims that its battery will have a service life of up to 50 years.
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