Smart Grid Energy storage: Flywheels
Energy storage by Flywheels is a storage to watch right now.
A flywheel converts electrical energy to kinetic energy.
An electric motor/generator starts a heavy rotating disk that converts a lot of energy because of its high mechanical inertia.
The energy in a flywheel can quickly be converted to electrical energy by which these systems often have a high power in relation to their capacity.
Beacon Power USA
In Stephentown, New York, Beacon Power has build a 20MW / 5MWh plant consisting 200 carbon fiber FlyWheels.
These FlyWheels make between 3000 and 5000 cycles per year through their input in the frequency regulation market.
The costs of this project was estimated on $ 60 million but a similar project at Hazle, Pennsylvania $ 10 was million cheaper (Nelder, 2013) (Wesoff, FlyWheel Energy Storage Lives On at Beacon Power, 2013)
Overview FlyWheel Companies and StartUps
ABB offers distributed energy storage modules for grid storage purposes, such as peak shaving, load shifting voltage regulation, renewable integration, and backup power. For distributed grid storage, ABB offers battery energy storage systems that integrate seamlessly into the power network. They employ a variety of battery technologies and non-battery technologies such as flywheels and supercapacitors.
Boeing FlyWheel Design
Boeing developed FlyWheels with Superconducting Bearings to supply in it’s energy storage.
The rotational kinetic energy of the FlyWheel can be converted into electrical power as needed by te load. And the FlyWheel does have some advantages comparing other battery systems
- Environmentally clean
- No hazardous materials
- Long life expectancy (>20 years)
- Ideally suited to multiple power applications
- Can handle rapid discharge rates without degradation
CRESS Systems (Carbon Reducing Energy Storage Systems) has developed a flywheel energy storage device that helps to reduce CO2 emissions and save on electricity. It uses a system that recovers “degraded” energy such as that coming from heat, vibrations or noise, which is generally not considered useful because it disappears into the atmosphere. And it’s already proving to be very useful in managing containers.
CRESS is an energy storage solution that works by mechanically activating a flywheel, which then temporarily recovers the energy in the form of kinetic energy and immediately recaptures it using an electric motor or generator. The unique advantage of this system is that it can store “pure” energy as well as degraded energy (the thermal energy released by an electrical device, for example), which ensures very high energy efficiency.
Smart Grid compatible management system
The CRESS device has so far been tested in port facilities and container cranes, but in time the plan is to look at the smart grid market using a smart system that algorithmically controls power stations, making it easier to redistribute electricity more locally.
Overview latest energy storage systems
- Smart Grid Battery: Molten Salt Battery
- Smart Grid Battery: Lithium-ion Battery
- Smart Grid Battery: Redox Flow Battery
- Smart Grid ‘Battery’: what about Compressed Air?
- Smart Grid Energy storage: Flywheels
- Smart Grid Energy storage: UltraCapacitors
- New: factory sea salt batteries in the Netherlands
- Floating train at 2000 km/h set to store 10% of Dutch electricity
- World’s first ‘Solar Battery’ runs on light and air
- NEW: clean ‘battery’ Hydrogen Storage Solution
- NEW: Organic Battery for almost every Renewable Energy Power Facility
- Aluminum battery loads in 1 Minute (Stanford)
- Green Battery Using Hydro-pneumatics
- Expected: sustainable battery from sea salt
- New water tank can retain > 90 percent of the energy
- Geothermal energy from old, closed coal mines
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