# Flywheels and small mechanical stores: Overview

Spinning rotors that steady the grid in seconds

Source page: https://www.materialinsights.org/energy/e_flywheels/overview/

What this tile covers Spinning rotors that store motion, and springs and hydraulic accumulators.

#### Key facts

| **Duration** | Seconds to minutes |
|---|---|
| **Chain** | Electrical → motor → spinning rotor → generator → electrical |

#### Included from the reference tables

- Steel and carbon-fibre flywheels
- Springs and elastic stores
- Hydraulic accumulators

#### Also in Mechanical
[PHS Pumped hydro storage](https://www.materialinsights.org/energy/e_pumped_hydro/)[Grv Gravity storage](https://www.materialinsights.org/energy/e_gravity/)[CAES Compressed-air and CO2 storage](https://www.materialinsights.org/energy/e_caes/)[LAES Liquid air storage](https://www.materialinsights.org/energy/e_liquid_air/)

Explore paths from here
 More on this tile in the tabs above: science and technology, engineering and performance, economics, impact and additionality, what to track.

## Other sections

- [Summary](https://www.materialinsights.org/energy/e_flywheels/index.md)
- [Correlation](https://www.materialinsights.org/energy/e_flywheels/correlation/index.md)
- [Science and technology](https://www.materialinsights.org/energy/e_flywheels/sg-sci/index.md)
- [Engineering and performance](https://www.materialinsights.org/energy/e_flywheels/sg-eng/index.md)
- [Economics](https://www.materialinsights.org/energy/e_flywheels/sg-econ/index.md)
- [Impact and additionality](https://www.materialinsights.org/energy/e_flywheels/sg-impact/index.md)
- [What to track](https://www.materialinsights.org/energy/e_flywheels/tracking/index.md)
- [Relationships](https://www.materialinsights.org/energy/e_flywheels/links/index.md)