KS Energy and Hitachi have agreed to jointly develop and operate an Extra High Voltage Grid Battery Energy Storage System in Kumamoto Prefecture, Japan. The project will also include collaboration in power trading operations to support grid stability in the Kyushu region.
The storage system will be directly connected to transmission lines with a capacity of 2,000 kW or more. It will help balance electricity supply and demand by charging and discharging based on grid conditions. This is the first case in Japan where a bank subsidiary renewable energy company is undertaking an extra high voltage grid battery business.
Hitachi will support early stage development, grid connection procedures, feasibility assessments and supply of power conversion systems. KS Energy will manage forecasting, charging and discharging plans, facility control and electricity market transactions.
The companies are also exploring a power trading support system under Hitachi’s Lumada initiative to improve bidding strategies and market participation. The collaboration aims to reduce renewable energy curtailment and support regional carbon neutrality.
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