Daiwa Energy (Osaka City) and Daiwa House Corporation's Mitsubishi Research Institute (MRI) will install battery storage at Daiwa Energy's "DREAM Solar Chiba Sakura" solar power plant in Sakura City, Chiba Prefecture, on April 1. Joint operations have begun. It was announced on April 3.

New storage battery installed
(Source: Daiwa Energy and MRI joint release)
DREAM Solar Chiba Sakura is a solar power plant that started operating in October 2020, with a solar panel capacity of 518.1kW and a grid-connected capacity of 333kW. It has been certified under the Feed-in Tariff (FIT) system and the unit purchase price is 14 yen/kWh.

Business plan
(Source: Daiwa Energy and MRI jointly released)
The two companies have been considering jointly operating battery storage at the power station from June 2023. The power station has been converted to premium power delivery (FIP), a new battery storage has been installed and a system built for joint operation in conjunction with MRI's distributed energy operations planning service "MERSOL Operations".
The newly installed storage battery has a capacity of 100kW and a capacity of 193.5kWh. The aim is to maximize the operating income of the entire power plant through optimal operation of the storage battery. The generated electricity and environmental value will be adjusted and traded on the market through UPDATER (Setagaya Ward, Tokyo).
Daiwa Energy will be responsible for maintenance and operations of the power plant, including newly installed battery storage, and asset management. Through Operation MERSOL, MRI uses proprietary optimization and prediction algorithms to provide optimal battery storage operating plans to maximize power plant revenue.
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