can we store electric AC power?

Question

is there capacitors to store AC power..........

Answer 1

no.

Answer 2

Energy is stored not power. We cannot store ac. It has to be convert it into dc and then store it. Otherwise it can also be converted it into other forms of energy and then be stored.

Classifying electrical energy storage systems is generally done keeping in mind in which form the energy is to be used. Energy systems can be mechanical, electrochemical, chemical, electrical and thermal energy storage systems.
1. Mechanical systems:a) Pumped hydro storage systems, nearly 99% of the world wide installed electrical storage capacity.b) Compressed air Storage: Electricity is used to compress air, as and when needed, the compressed air is mixed with natural gas, and is burned with the gas fed to a gas turbine. This is basically an old technology and is seldom used nowadays.c) Flywheel energy storage: Rotational energy is stored in accelerated rotating flywheel usually maintained at constant speed. If flywheel's rotational speed is reduced, electricity may be extracted from the mechanical system by a electricity transmission device.

2. Electrochemical systems:In the form of various batteries, both Secondary (general) and Flow batteries (with flowing electrolytes) and is basically electrical to chemical storage.

3. Chemical storage: In Hydrogen or SNG (synthetic natural gas) via electrolysis of water to produce hydrogen and/or methane if required. Or by oxidizing hydrogen in fuel cells, electricity can be generated.

4. Electrical storage: a) In the form of charge, as in a Double Layer Capacitor (Supercapacitors). They can reach high specific power densities much higher than general batteries and are generally maintenance free. Efficiencies can reach as high as 90%.b) SMES (Superconducting magnetic energy storage) is electrical energy stored in magnetic field created by flow of DC in superconducting coil. It has quick response time with higher efficiencies.

5. Thermal storage: This technique utilizes sensible heat storage or latent heat storage. This technique uses change in temperature of the storage medium. The released heat can be converted to electricity by usual means.

https://www.electrikals.com/

Answer 3

boost, yes..store, not for long