ADD HYSTOR PROJECT
AdD Hystor - H2020 funded Project
Europe’s largest and the UK’s first battery flywheel system will be connected to the Irish and UK grids to help respond to energy demand as part of a new project involving engineers from the University of Sheffield, Schwungrad Energie, Adaptive Balancing Power and Freqcon.
The €4 million euro project, with €2.9 million coming from the EU’s Horizon2020 scheme, will develop an innovative flywheel battery hybrid energy storage system aimed at stabilising pressure on the existing grid infrastructure in Europe.
Flywheels work by accelerating a rotor to high speeds using electrical energy, effectively storing the energy within the system as rotational energy, to be converted back to electricity when required. Flywheels do not degrade over time compared to batteries so combining the two enables the storage system to operate more efficiently and reduce costs over the system’s lifetime.
The new project, coordinated by Schwungrad Energie Limited, involves partners Adaptive Balancing Power GmbH who will provide their innovative adaptive flywheel technology. Freqcon GmbH will design and build scalable multi-source power converters to connect the flywheels to the grid.
Dr Dan Gladwin, Deputy Director of the Centre for Research into Electrical Energy Storage and APplications (CREESA) at the University of Sheffield, said: “The UK national grid is becoming increasingly volatile due to the rising share of intermittent renewable energy sources. This manifests itself in deviations from the nominal 50Hz frequency as demand outweighs supply or vice versa.
“Battery and flywheel technologies can offer a rapid response, and can export and import energy enabling this technology to respond to periods of both under and over frequency.”
In the first stage of the project, the flywheel facility will be installed in Ireland, piloted by Schwungrad Energie Limited at their hybrid flywheel battery facility, which has already seen a successful and highly beneficial demonstration project, in collaboration with EirGrid. The flywheel system will be capable of a peak power of 500kW and able to store 10kWh of energy.
The system will then be installed at the University of Sheffield’s Energy Storage Facility at Willenhall near Wolverhampton. The grid-connected research facility is one of the largest and fastest battery storage systems in the UK.
The flywheels will be upgraded to provide 1MW of peak power and 20kWh of energy storage and used as a hybrid energy storage system with the batteries to provide frequency response services.
Fast acting frequency response services, such as those provided by this hybrid solution, are a key enabler to the realisation of a high penetration of renewables – recognised by the Irish System Operators DS3 Programme for System Services.
More specifically, energy storage is a key priority for the UK government, with a policy by the Department of Business, Energy and Industrial Strategy (BEIS) expected later this year.
A recent report by the National Infrastructure Commission has suggested that energy storage could contribute to innovations that could save consumers £8 billion a year by 2030 as well as securing the UK’s energy supply for generations.
Jake Bracken, from Schwungrad Energie, said: “The existing Hybrid Flywheel-Battery Facility has concluded a trial with EirGrid, successfully demonstrating the technology’s capability to rapidly inject power following a frequency event.
“When implemented at commercial scale the technology will assist in overcoming the challenges of operating a power system with increased levels of renewables.
“The adaptive flywheel and multi-source inverter being demonstrated by this project have the potential to increase the competitiveness of the solution.”
Norbert Hennchen, CEO of Freqcon GmbH, said: “Increasing renewable penetration is a huge challenge for grid stability worldwide, and our company is at the forefront of developing innovative grid support solutions, based on our leading-edge power converters.
“We are delighted to be part of this consortium to develop and demonstrate the Flywheel-Battery Hybrid Technology.”
Dr Hendrik Schaede from Adaptive Balancing Power, added: “We are proud to work in this great consortium on the future of our power grids, making them economic and reliable while CO2-emissions are further reduced.
“Irish and English grid operators currently hold a pioneering role by developing up-to-date regulations for grid stabilisation measures, which means we can test grid stabilisation technology in the project.
“Our adaptive flywheel technology allows us to tailor the flywheels’ properties to the requirements set up by regulations and local conditions, leading to a high efficiency while providing the grid services at lowest costs.”
The Lithium Titanate Battery Storage System at Willenhall is the largest Grid-connected research driven facility in the UK
The facility is a platform for academia and industry to collaborate and evaluate existing and future grid support methods not possible previously with co-generation methods such as diesel and pumped-hydro
Installed and commissioned in 2015, now facilitating research and advisory services to collaborators
2 MVA DC to AC ABB inverter system
20 x 100 kVA inverter modules
5 MW Site Capacity
2 MW, 1MWh Toshiba SCiB lithium titanate battery
21,120 2.3V 20Ah cells
Direct connection to 11 kV through transformer
Flexible 100 kVA system for hybrid energy storage
EV batteries, flywheels, fuel cells
Live real time data feed at 1 second intervals
Transients captured at 40kHz
Multiple data connection types (3G / 4G / 100Mbps fibre) to investigate communication latency challenges
Measurement granularity down to cell level
Independent control over the battery and inverter
Custom Battery Management System (BMS)
4. Experimental Platform
Fast response 0 to 2 MVA in 40 ms
Hardware in the Loop Simulation
Live Control and Data through VPN
Hybrid Energy Storage
100 kVA System
1 MVA grid-tied lead acid battery also on site
Extensive Laboratory Facilities (CREESA Applied Energy Lab)
Battery System Profiling
Grid Support Services
Fast and Enhanced Frequency Response (FFR & EFR)
Aggregator Evaluation Platform
Data Connectivity and Latency Issues