2022/11/18
The participation of energy storage in deep peak shaving trading can be divided into two modes: sequential call and priority call. Energy storage stations can choose their own participation mode, and changes to the participation mode should be approved by the control center.
(4) Market entities on the load side shall quote based on increased electricity consumption. The load side market entities are only allowed to participate in day-ahead market trading, and the trading hours are the next day's trough period and waist load period.
Market entities on the load side should declare the ability, time range, and price of peak shaving assistance services during low and low load periods.
The deep peak shaving electricity consumption of load side market entities is calculated based on the user's baseline load.
Article 22 【 Quotation Limit 】 The quotation for deep peak shaving trading shall be subject to price limit management. Adjusting the quotation limit should be approved by the Hunan Energy Regulatory Office, the Provincial Development and Reform Commission, and the Provincial Energy Bureau. The quotation limit is detailed in Annex 3 "Quotation Limit for Deep Peak shaving of Thermal Power, Pumped Storage, Energy Storage Power Stations, and Load Side Market Entities".
Article 23 【 Quotation Sorting and Call Sorting 】 The principles of quotation sorting and call sorting for thermal power units, pumped storage, and energy storage:
(1) Quotation sorting. Sort according to the seller's quotation from low to high; When the prices quoted by sellers of different categories such as thermal power units, pumped storage units, and energy storage power stations are the same, or when the prices quoted by sellers of the same category are the same, they shall be sorted according to the order of application time.
(2) Call sorting. After security verification by the control center, a call sorting is formed. The dispatch and control center is called in sequence based on the deep peak shaving needs of the power grid. When the demand for deep peak shaving decreases, reduce or stop calls in reverse order.
(3) If the pumped storage unit wins the bid according to the call ranking, but the peak shaving demand capacity of the power grid is lower than the rated pumping power of a single unit, the unit will not participate in the ranking.
(4) If the continuous pumping time of the pumped storage unit reaches its declared maximum continuous pumping time, it shall be deemed as the exhaustion of deep peak shaving capacity, and the transaction during this trading period shall be withdrawn. The transaction shall be resumed after the pumping capacity is restored. If the charging capacity of the energy storage station is exhausted, exit the trading session and wait for its charging capacity to recover before participating in the trading.
(5) Due to the operational needs of the power grid, the dispatch and control center can adjust the call time of pumped storage units and energy storage stations based on load forecasting, peak shaving demand, requirements for safe and stable operation of the power grid, pumping capacity of pumped storage units, charging and discharging capacity of energy storage stations, etc. However, relevant records should be kept to explain the reasons for the adjustment.
Article 24 【 Clearing of Load Side Market Entities 】 Under the conditions of meeting the constraints of grid security and power balance, load side market entities shall separately clear the market according to the centralized bidding and unified marginal electricity price clearing mechanism, following the principles of price priority and time priority.
(1) Sort the prices declared by the load side market entities in each period from low to high until they meet the peak shaving demand of the load side market entities in that period, forming the marginal clearing price and winning electricity. The transaction price is the declared price of the winning load side market entity after *.
(2) When the declared price is equal to the marginal clearance price, the winning bidder shall be determined in the order of the declared time.
Section 3 Transaction Organization and Execution
Article 25 【 Trading Organization 】 Trading organization.
Before 09:00 every day, the seller shall declare the next day's deep peak shaving trading price and relevant information through the auxiliary service market trading platform.
Before 19:00 every day, the dispatch and control center will publish the next day's dispatching order, prepare and publish the next day's generation dispatching plan (or market clearing results) according to the load forecast, peak shaving demand, and grid security and stability operation requirements.
Before holidays, the dispatch and control center can centrally organize multi day deep peak shaving transactions, and release the corresponding call sorting, which can be called on demand during holidays.
Article 26 【 Deviation Handling 】 Deviation handling.
(1) If there is a significant deviation in the predicted peak shaving demand, the control center can make timely corrections and adjustments based on the actual situation of the power grid.
(2) During the daily operation, the dispatch and control center can make timely correction and adjustment according to the ultra short term load forecast and the requirements for the safe and stable operation of the power grid, in combination with calling the sequencing day ahead plan.
(3) If there is a correction or adjustment of transaction deviation, the control center should keep records and explain the reasons for the adjustment for future reference.
Article 27 【 Paid Compulsory Call 】 In the event that all declared equipment capacities have been called and still cannot meet the peak shaving needs of the power grid, the dispatch and control center may, based on the peak shaving needs and the requirements for safe and stable operation of the power grid, forcibly call the deep peak shaving capabilities of undeclared service sellers, and keep records, explaining the reasons for the mandatory call for future reference.
The seller of the forcibly invoked service shall settle at a low quotation of the same type (same range) within the trading period. Just like the type (within the same range) without a quotation, settlement will be based on the market * low price.
Article 28 【 Compulsory Call for Free 】 If there is no service seller to declare, the dispatch and control center may, based on the needs of peak shaving and the requirements for safe and stable operation of the power grid, forcibly call various types of regulation resources with deep peak shaving capabilities for free, and keep records to explain the reasons for the forced call.
Article 29: Energy storage shall be prioritized for ensuring the safe and stable operation of the power grid, power supply, and clean energy consumption. When necessary, the dispatch center may adjust the market clearing results or charging and discharging plans of the energy storage power station as needed, and inform the relevant energy storage entities in advance, and keep records, explaining the reasons for the mandatory call for future reference.
Article 30 【 Load side market entities shall execute within the day 】 The control center shall follow the principle of "on-demand deployment, safety and economy", reasonably determine the demand for auxiliary services provided by load side market entities, and prioritize the execution of the initial clearing results of load side market entities within the day.
Section 4 Service Fee and Its Allocation
Article 31 [Information Release] The deep peak shaving service fee shall be calculated and allocated according to the trading period.
Before 10:00 every day, the dispatch and control center will announce the call of the previous day's deep peak shaving, the details of service fees and apportionment fees for each trading period.
If there are any objections, the market entities should raise them before 18:00 on the same day, and the control center should handle and respond before 18:00 on the next day. Holidays should be postponed accordingly.
Article 32 [Deep Peak shaving Service Fee] The deep peak shaving service fee is the total amount of the product of the calling entity's deep peak shaving electricity quantity and the bid winning price. To effectively regulate the total cost of deep peak shaving services, a deep peak shaving adjustment coefficient K is set, with a value range of 0-2.
Total amount of deep peak shaving service fee=deep peak shaving service fee for thermal power units+deep peak shaving service fee for pumped storage units+deep peak shaving service fee for energy storage stations+deep peak shaving service fee for load side market entities:
(1) Service fee for deep peak shaving of thermal power units=K ∑ (unit deep peak shaving electricity during trading period) × Bid winning price)
Among them, the deep peak shaving electricity of thermal power units refers to the reduced electricity generated by thermal power units according to scheduling instructions for deep peak shaving.
(2) Service fee for deep peak shaving of pumped storage units=K ∑ (unit deep peak shaving electricity during trading period) × Bid winning price)
Among them, the deep peak shaving electricity consumption of pumped storage units refers to the actual pumping electricity consumption that occurs when the pumped storage units pump water according to the scheduling instructions.
When using pumped storage units, if there is a situation where the output of thermal power units is higher than the paid peak shaving reference value (except for units that cannot be adjusted to or below the paid peak shaving reference value due to grid safety constraints or their own reasons), the deep peak shaving power of pumped storage units should exclude the power generation above the paid peak shaving reference value of thermal power units.
(3) Service fee for deep peak shaving of energy storage power plants=K ∑ (deep peak shaving electricity of energy storage power plants during trading hours) × Bid winning price)
Among them, the deep peak shaving electricity of the energy storage station refers to the charging electricity charged by the energy storage station according to the scheduling instructions.
(4) Load side market entities' deep peak shaving service fee=∑ (load side market entities' deep peak shaving electricity during trading hours) × Marginal clearance price)
Among them, the deep peak shaving electricity consumption of the load side market entity is the smaller value between the increase in electricity consumption by the load side market entity above the baseline load and the market clearing electricity consumption according to the scheduling instructions.
The value of K can be found in Annex 4 "Auxiliary Service Market Coefficient Table".
Article 33 【 Allocation of Deep Peak shaving Service Fee 】 In the deep peak shaving service fee, the service fee for the load side market entities shall be shared by market-oriented power users, and the remaining fees shall be shared by service buyers with online electricity during the deep peak shaving trading period according to their proportion of online electricity.
Allocation fee for deep peak shaving service fee of a certain market entity=(total deep peak shaving service fee - load side market entity service fee) ×∑ (During this trading period, the service buyer's online electricity consumption × Ki)/∑ (the online electricity consumption of each service buyer during the trading period × Ki)
Article 34 【 Allocation Adjustment Coefficient 】 Considering the differences in benefits for buyers of different types of deep peak shaving services in deep peak shaving services, a allocation adjustment coefficient Ki shall be set.
(1) The allocation adjustment coefficient for Qishao DC transmission to other provinces is K1. K1 is the ratio of the number of thermal power units that meet the requirements for safe and stable operation of the power grid during the operation and shutdown of Qishao DC power grid, with two decimal places reserved.
(2) The allocation adjustment coefficient for hydropower plants with incomplete seasonal regulation and above is K2.
(3) The wind power allocation adjustment coefficient is K3.
(4) The photovoltaic allocation adjustment coefficient is K4.
(5) The allocation adjustment coefficient for small and medium-sized thermal power plants (excluding garbage power plants) is K5.
(6) The allocation adjustment coefficient for other market entities is K6.
The service buyer shall not exceed their approved grid electricity price (or coal-fired power generation benchmark price) for the cost of electricity sharing during a single deep peak shaving trading period.
The value of Ki can be found in Annex 4 "Auxiliary Service Market Coefficient Table".
Article 35 [Connection with Medium and Long Term Trading] The seller's units participating in deep peak shaving trading shall not be deemed to have exceeded or missed the monthly deviation assessment for medium and long term trading due to their own reasons.
Article 36 [Invalid Service] If the seller's unit's output drops below the paid peak shaving reference value due to its own reasons such as startup, shutdown, or non shutdown, it shall not be considered as providing deep peak shaving service.
Article 37 [Exemption from Allocation] The situations where allocation may be exempted are as follows:
(1) Due to the safe and stable operation of the power grid, it is necessary to input AGC to track the power of the connecting line or the online electricity consumption of the frequency modulation unit;
(2) Selling the online electricity from other provinces;
(3) The online electricity consumption of pumped storage power stations and energy storage power stations;
(4) The load rate of thermal power units exceeds the corresponding online electricity consumption of the average load rate of the thermal power unit due to grid safety constraints and other factors;
(5) If a hydropower plant has a requirement for small ecological discharge from a reservoir, the amount of electricity allocated for deep peak shaving service fees should be deducted from the online electricity corresponding to 10% of its installed capacity during the corresponding trading period;
(6) Other situations that should be exempted from allocation.
Chapter 4 Starting, Stopping, and Peaking Trading
Section 1 Definition and Starting Conditions
Article 38 [Definition of Start Stop Peak Regulation Transaction] Start stop peak regulation transaction refers to the transaction in which the thermal power unit in the service seller completes a shutdown, disconnection, and grid connection operation status conversion to the target within 72 hours according to the needs of grid peak regulation.
On the premise of meeting the requirements for safe and stable operation of the Hunan power grid, the successful power plant in peak shaving can start and stop other units connected to the grid at the same voltage level and capacity level within the specified time, and the shut down units remain in normal standby state, which can be regarded as a start stop peak shaving transaction.
Article 39 【 Starting/stopping peak shaving trading entity 】 Starting/stopping peak shaving trading entity:
(1) The seller is a thermal power unit with a single unit capacity of 20 megawatts or above that meets the admission criteria, including coal-fired, gas, and biomass units.
(2) The buyer is the grid connected entity on the power generation side within the province that generates online electricity during the transaction cycle, and the market entity outside the province that transfers cross regional and cross provincial electricity through the Hunan power grid.
Article 40 [Conditions for Starting and Stopping Peak shaving Transactions] When the dispatch and control center predicts that the system's negative reserve is insufficient and deep peak shaving transactions cannot meet the peak shaving needs of the power grid, it can start and stop peak shaving transactions.
Section 2 Declaration and Clearance
Article 41 [Trading Method] The starting and stopping peak shaving trading method is "daily quotation, call according to demand, and call in sequence".
Article 42 [Information Declaration and Bid Winning Price] The seller shall submit the declaration information through the auxiliary service market trading platform in advance.
The seller shall declare the start stop peak shaving price based on the approved capacity level of the thermal power unit, and shall also declare the small time interval from shutdown to grid connection, the small time interval from receiving dispatch instructions to unit shutdown and splitting, and the small time interval from receiving dispatch instructions to unit grid connection.
If called on demand, the bid winning price shall be the quoted price.
Article 43 【 Price Limit 】 The quotation for peak shaving trading shall be subject to price limit management. Adjusting the quotation limit should be approved by the Hunan Energy Regulatory Office, the Provincial Development and Reform Commission, and the Provincial Energy Bureau. The quotation limit is detailed in Annex 5 "Quotation Limit for Starting, Stopping, and Peaking Regulation of Coal-fired Thermal Power (Biomass) Units" and "Quotation Limit for Starting, Stopping, and Peaking Regulation of Gas Units".
Article 44 [Peak shaving demand] The dispatch and control center shall determine the required start-up and shutdown peak shaving capacity of thermal power units and the minimum time interval requirements based on actual conditions such as load forecasting, start-up mode, and renewable energy consumption.
Article 45 【 Sorting Principle 】 Units that meet the requirements of starting and stopping peak shaving capacity and small time intervals shall be ranked from low to high according to the quotation; When the quotation is the same, it should be sorted according to the order of application time.
After safety verification by the dispatch and control center, a call ranking is formed and called according to the principle of low peak shaving total service fee * as needed.
Section 3 Transaction Organization and Execution
Article 46 【 Trading Organization 】 Trading organization.
Before 09:00 every day, the seller shall declare the next day's peak trading prices and related information through the auxiliary service market trading platform.
Before 19:00 every day, the dispatch and control center shall prepare and issue the unit start stop peak shaving plan for the next day according to the seller's declaration information, load forecast and grid operation.
Before holidays, the dispatch and control center can centrally organize the declaration of multi day peak shaving transactions, and release the corresponding calling sequence, which can be called on demand during holidays.
Article 47 【 Day ahead arrangement 】 The start and stop of peak shaving trading shall be mainly arranged according to the day ahead plan. During the day operation, the dispatch and control center can start the start stop peak shaving transaction in sequence according to the ultra short term load forecast and grid operation, and according to the day ahead plan. When calling within the day, the control center should notify the relevant power generation enterprises at least 2 hours in advance.
Article 48 [Implementation within the day] During the daily operation, the dispatch and control center can optimize and adjust the sequence of the starting and stopping units and the starting and stopping time interval of the units (not less than the * hour interval declared by the units) according to the peak shaving needs and the requirements for the safe and stable operation of the power grid and the principle of low total service charge for peak shaving.
To adjust the start stop peak shaving plan, the control center should notify the relevant power generation enterprises at least 2 hours in advance and keep relevant records, explaining the reasons for the adjustment for future reference.
Article 49 [Paid Compulsory Call] If all declared units have been called and still cannot meet the peak shaving needs of the power grid, the dispatch and control center may forcibly call undeclared units according to the peak shaving needs and the requirements for safe and stable operation of the power grid, and keep relevant records to explain the reasons for the forced call for future reference.
The unit being forcibly called shall settle at a low quotation for thermal power units of the same capacity level during the trading period.
Article 50 【 Compulsory Call for Free 】 If there is no unit declaration, the dispatch and control center may, based on the needs of peak shaving and the requirements for safe and stable operation of the power grid, forcibly call thermal power units to start and stop peak shaving for free, and keep relevant records, explaining the reasons for the forced call for future reference.
Section 4 Service Fee and Its Allocation
Article 51 [Information Release] The service fee for start stop peak shaving shall be calculated based on the number of start stop peak shaving units.
Before 10:00 every day, the dispatch and control center shall announce the call condition, service fee and apportionment fee details of the previous day's start and stop of peak shaving units.
If there are any objections, the market entities should raise them before 18:00 on the same day, and the control center should handle and respond before 18:00 on the next day. Holidays should be postponed accordingly.
Article 52 [Service Fee] The start stop peak shaving service fee shall be the total amount of the product of the number of units called for start stop peak shaving and the bid price.
Total service fee for start stop peak shaving=∑ (number of start stop peak shaving units) × Bid winning price)
Article 53 【 Sharing Fee 】 The starting and stopping peak shaving service fee shall be shared by the buyer who has online electricity during the starting and stopping peak shaving trading period according to their proportion of online electricity.
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