Can alternating current can be stored?

Answer 1

Not directly. It has to be converted, either into DC for battery storage, or some other form of potential energy, ie, spinning a flywheel, or pumping water into a tower, etc.

Answer 2

First of all, what we store is energy; not current or voltage. The question is, therefore, wrong. The question needs to be re-phrased as " Can we store electrical energy which is in the form of alternating current?"

The answer is yes. We simply rectify the alternating current to get direct current and use it to charge a storage battery. We need to rectify AC because batteries have definite positive and negative poles and we cannot apply AC to them.

The next part is how we use the energy stored in the storage battery. If we can use this energy in the form of direct current and at the voltage given by the storage battery (usually 12V for a lead acid battery), we can use it straightaway. However, it we need it at a different DC voltage or as AC we need to convert the stored electrical energy accordingly. We can use an inverter to change DC into AC, a transformer to change the voltage and a rectifier to convert AC into DC.

Answer 3

First off, you store power which is a function of Voltage and Current in electricity.

One answer you have seen, convert it to DC, store in batteries, and then use an inverter to convert it back to to AC when required.


Another method to store AC , put a huge flywheel on a motor, apply power to get it running, then take away the power from the motor, it will now become a generator, and create an AC Voltage/Current). Very inefficient and not worth the effort, but the flywheel is stored energy while it is still turning, and that energy is being converted back to AC.

Answer 4

No., but direct current can be stored in a number of ways and then converted to alternating current.

Answer 5

no AC current can't be stored unless it is first converted in to DC,as for storing it is stored in the form of charge which is the average value of the product of the vol & current & in case of AC the average value of the current in 1 cycle is 0 thus making the whole expression = 0 ,so it can't be stored.

Answer 6

Not directly, but there are such things as pumped storage power plants that pump water uphill to a reservoir when AC electricity is less expensive and then allow it to drive hydro-turbines to produce AC electricity when the price goes up thus indirectly storing AC power.

Answer 7

Just if it is rectified in direct c.Sample of a.c. may be maintained for short time,in a circuit resonant with high Q.

Answer 8

it can be stored in an a.c.capacitor

Answer 9

Not in any conventional way that doesn't involve things like superconductors.