3.1.3. Trade Method

We present trade adopting a bidirectional auction mechanism, as follows. The platform sets the access conditions of energy storage power stations and matches the trade between the supply and demand sides of incorporated energy storage devices. The application scenarios are described next, with each scenario representing the purchase and sale of rental services.


Concerning carbon emission rights, the remaining carbon quota is measured according to standards of national carbon emission quotas and participates in carbon quota trading according to the requirements of the carbon-trading market. The smaller independent energy storage devices, who set quotes based on self-operating profit, can offer quotes within the scope of a national floating standard.

We present the trading capacity matching method of day-ahead and intraday markets, in which appointments are made for each scenario in the day-ahead market after uploading the supply and demand capacities and quoted energy storage suppliers, including electricity/hot/cold energy storage suppliers, and two or three energy storage demands at the same time. Micro-adjusting the actual supply and demand capacity occurs in 1-h and 15-min increments each day. If the capacity on the supply side is less than the actual capacity on the current demand side, when the supply side cannot provide new capacity, the system will continue to provide at least two options in the near area for the buyer to choose until all transactions on the demand side are completed; if the reserved capacity on the supply side is greater than the actual capacity on the current demand side, only the actual used capacity will be measured. In order to avoid the demand side increasing the forecast demand in the day-ahead market, the range of acceptable error rate and penalty are formulated in the contract. The error rate = (predicted value − actual value)/actual value × 100%, and the range of acceptable error rate is set to ±10%. For the period exceeding the error rate, a penalty of 5‰ should be paid in 24hours of the day.
