From pv magazine Germany.
The Minety power plant has a capacity of 100 MW / 100 MWh and is intended to provide services for grid frequency regulation and maximize the use of renewable energies.
The project saw two 50 MW batteries developed by Penso Power and funded by state-owned China Huaneng Group and CNIC Corporation. Initially, the project was a single 50 MW battery completed in 2020, with a second battery added during 2021.
As a result of a short-term drop in network frequency, there was a large-scale power outage in the United Kingdom around two years ago. After that, the authorities gave priority to the construction of large storage facilities in order to prevent this kind of incident from happening again. The use of some of the large storage systems installed at the time, in fact, helped prevent a total failure of the country's electricity system.
Construction of the Minety large storage facility began at the end of 2019, for which Sungrow supplied both nickel-manganese-cobalt (NMC) and lithium-iron-phosphate (LFP) battery solutions with a high level of integration. According to the company, this reduced the space requirement, shortened the commissioning time and reduced system costs by 5%.
The new large storage system fulfills the latest British frequency regulation requirement, dynamic containment. This means that the system has to react to the power instructions of the network within a second. Only about 30% of the large storage facilities in Great Britain are equipped with this function, according to Sungrow.
Shell Energy Europe Limited, the gas and electricity unit of the Anglo-Dutch fossil fuel giant, agreed to buy power from the project under a long-term power purchase agreement (PPA), though terms were not disclosed.
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