Hunan Province Power Ancillary Service Market Trading Rules (Trial) Released

China Energy Storage Network News: Hunan Energy Supervision Office recently issued the "Notice on the Transaction Rules (Trial) of Hunan Electric Power Auxiliary Service Market". Hunan Electric Power Auxiliary Service Market will start trial operation from November 2020. Electric power auxiliary service market transactions include deep peak-shaving transactions, start-stop peak-shaving transactions, spinning reserve transactions and emergency short-term peak-shaving transactions.

Hunan Power Ancillary Service Market implements a market entity registration management system, and the trading center is responsible for market registration classification management. Thermal power, hydropower, wind power, photovoltaic and other power generation companies and pumped storage power stations that meet the relevant technical conditions in the Hunan power grid should enter the market. Energy storage service providers, phase adjustment service providers and power users that meet the relevant technical standards are encouraged to enter the market for transactions, and relevant standards and specifications will be formulated separately.

The deep peak-shaving trading method is "price quote on the day before, call on demand, call in order". Deep peak-shaving trading is based on a 15-minute trading session, with the first session from 0:00 to 0:15 and the last session from 23:45 to 24:00, for a total of 96 trading sessions throughout the day.

The sellers of the start-stop peak-shaving transaction are thermal power plants (units) among the market entities. The buyers of the start-stop peak-shaving transaction are the market entities within the Hunan power grid that generate grid-connected electricity during the corresponding transaction period and the market entities outside the province that transfer cross-regional and cross-provincial electricity through the Hunan power grid.

The trading mode of start-stop peak load regulation is "price quotation on the day before, call on demand, call in sequence". The quotation of start-stop peak load regulation is subject to price limit management.

The sellers of spinning reserve transactions are thermal power plants (units), hydropower plants, and phase-shifting power stations connected to the Hunan power grid at a voltage level of 220 kV or above and included in the Qi Shao DC Stable Operation Regulations (hereinafter referred to as the "Stability Regulations"). Energy storage power stations can only participate in transactions as sellers after they have the technical conditions to provide spinning reserve. The deep peak-shaving capacity of thermal power units is not included in spinning reserve transactions.

The trading mode of rotating reserve is "price quoted on the day before, call on demand". The trading cycle of rotating reserve trading is 15 minutes, the first period is 0:00-0:15, and the last period is 23:45-24:00, with a total of 96 trading periods throughout the day.

Details are as follows: