Study and detailed design of supply-demand balancing market scheme
Achieve efficient procurement of balancing capacity beyond areas
The balancing capacity required by general power transmission and distribution companies to adjust the supply-demand balance in grids had been procured through public bidding by the general power transmission and distribution companies for the respective areas. Since FY 2021, we have progressively expanded the cross-regional procurement in the supply-demand balancing market. In FY 2024, all balancing capacities were procured cross-regionally to contribute to the efficient maintenance and operation of power grids.
OCCTO studies and designs this supply-demand balancing market scheme in detail.
Commodities handled in the supply-demand balancing market
Fluctuations in electricity demand can be broken down into each element. General power transmission and distribution companies control frequency by appropriately using the respective functions of power generators and other facilities corresponding to the respective fluctuation elements. Based on these control functions, five commodities from the frequency containment reserve (primary balancing capacity) through the replacement reserve-for FIT (tertiary balancing capacity-ii) according to the response time and the duration are traded in the supply-demand balancing market.
Since FY 2021, trades have started in phases from commodities with longer response time and the trade of all commodities started in FY 2024.
