Taipower Regulation Reserve Ancillary Service Business Opportunity Introduction
Through Taipower Energy Trading Platform, traditional power generation operators, self-use power generation equipment manufacturers and emerging energy storage equipment manufacturers can conduct mutual bidding, so that diversified and distributed power resources can be added to the system to provide auxiliary services to stabilize the power grid. It can also help restore the regular power supply as soon as possible in an electrical accident.
Taipower Ancillary Service Market Trading Platform
This Energy Trading Platform (ETP) is a trading platform designed for transactions of ancillary service as well as electricity reserve capacity. According to article 11 of the Electricity Act, the electricity transmission and distribution enterprise (Taiwan Power Company) shall set up an electricity trading platform based on openness and transparency. Based on the experience of the highly developed international market, the structure of the electricity market is highly complex and requires a lot of expertise. Therefore, the implementation of transactions of ancillary service and electricity reserve capacity is to enhance private investment for the development of domestic renewable energy, stabilize the energy system with the contribution of sustainable power and establish the foundation of this ETP.
The Day-Ahead Ancillary Service Market of this ETP is to promote energy diversification and provide faster-ramping and more flexible ancillary service resources into energy system so as to ensure the stability of grid frequency. On the other hand, the electricity reserve capacity market of this ETP is to provide a market mechanism for the preparation of electricity reserve capacity according to laws and regulations for electricity generating and retailing enterprises. To bid in the Day-Ahead Ancillary Service Market, you should apply for registration as a qualified trader. To auction electricity reserve capacity in the electricity reserve capacity market, you should apply for registration as a seller or buyer.
Take from：Taipower - Ancillary Service and Reserve Capacity Trading Platform
Day-Ahead Ancillary Service Market Introduction
The Ancillary Service Trading Platform focuses on “Day-Ahead Market”, which indicates the matchmaking one day before the dispatch day to meet the power supply and demand on the dispatch day. The “Day-Ahead Ancillary Service Market” currently possesses three ancillary trading items, including “Regulation Reserve”, “Spinning Reserve” and “Supplemental Reserve”.
Take from：Taipower -Ancillary Service and Reserve Capacity trading platform public explanatory meeting slides
How to join the Day-Ahead Ancillary Service Market
It includes 3 parts：
Registration Procedure, Expertise Certificate, and Technical Requirements of Trading Meter. For more detailed content, please refer to the Participation in the Day-Ahead Ancillary Service Market.
Day-Ahead Ancillary Service Market Operation Introduction
It includes 4 parts：
Market operating schedule, Bidding principal, Settlements and Operating Procedures. For more detailed content, please refer to the Operation of the Day-Ahead Ancillary Service Market.
Specifications for the Trading Products
1.
Regulation Reserve (dReg0.25, dReg0.5, E-dReg)
Automatically detect the real-time system frequency and automatically adjust the corresponding output power by following Operating Curve. This mechanism doesn’t need to receive the dispatch instruction from the dispatch center, and should be able to charge or discharge the electricity within 1 second. The main operating range of
dReg0.5
is usually less than 50%, so
E-dReg
mainly combines High Power and High Energy batteries to form a composite battery energy storage. Thus, ESS can reach the frequency regulation service of
dReg0.5
and possess the function of peak load shaving simultaneously, so it can also maximize the benefits of unused power of
dReg0.5.
E-dReg
is one of the trading products in Taiwan
Ancillary Service Market, it bids with all regulation reserves. Only the grid-connected energy storage with a capacity of more than 5MW/12.5MWh can participate in bidding trade platform. The revenue of E-dReg is 50% more than
dReg
and
sRege.
The detailed Operating Curve of dReg0.25 and dReg0.5 (output and input power curves) are indicated in the figure：
| System Frequency (dReg0.25) | System Frequency (dReg0.5) | System Frequency Corresponding Index | Power Corresponding Index | Description |
|---|---|---|---|---|
| 59.75 Hz | 59.50 Hz | Aғ | Aᴘ | When system frequency is lower than Aғ, it should output at 100%. |
| 59.86 Hz | 59.75 Hz | Bғ | Bᴘ | (1) When system frequency reaches=Bғ, it should output at Bᴘ.(2) When system frequency is between Aғ and Bғ, it should operate between A and B.(3) When system frequency is between Bғ and Dғ, it should input/output in BCD.(4) Bᴘ of dReg0.25 is 52%, Bᴘ of dReg0.5 is 48%. |
| 59.98 Hz | 59.98 Hz | Dғ | Eᴘ/Fᴘ | When system frequency is between Dғ or Fғ, it should input/output within the Adjustment Area, CDFE. |
| 60.02 Hz | 60.02 Hz | Fғ | Fᴘ/Eᴘ | When system frequency is between Dғ or Fғ, it should input/output within the Adjustment Area, CDFE. |
| 60.14 Hz | 60.25 Hz | Gғ | Gᴘ | (1) When system frequency reaches Gғ, it should output at Gᴘ.(2) When system frequency is between Fғ and Gғ, it should input/output in the area EFG.(3) When system frequency is between Gғ and Hғ, it should follow G-H.(4) Gᴘ of dReg0.25 is 52%, Gᴘ of dReg0.5 is 48%. |
| 60.25 Hz | 60.50 Hz | Hғ | Hᴘ | When system frequency is higher than Hғ, it should output at 100%. |
2.
Spinning Reserve
It should reach 100% of the commanded capacity within 10 minutes after receiving a dispatch instruction. Then, the service should maintain 60 minutes and must resume standby status 120 minutes after the end of the service.
| Item | Period | Description |
|---|---|---|
| Fully Responding Time | Within 10 minutes | After the dispatch instruction is issued, it should fully respond within 10 minutes to provide the ancillary service. |
| Service Duration | 60 minutes | (1) The duration is calculated from 10 minutes after the dispatch instruction is issued.(2) As the ancillary service starts, it should have the ability to provide the service continuously for up to 60 minutes. |
| Recovery Time | 120 minutes | When the ancillary service ends, it should resume standby within 120 minutes and accept the next dispatch instruction at any time. |
3.
Supplemental Reserve
It should reach 100% of the commanded capacity within 30 minutes after receiving a dispatch instruction. Then, the service should maintain 120 minutes and must resume standby status 240 minutes after the end of the service.
| Item | Period | Description |
|---|---|---|
| Fully Responding Time | Within 30 minutes | After the dispatch instruction is issued, it should fully respond within 30 minutes to provide the ancillary service. |
| Service Duration | 120 minutes | (1) The service duration is calculated from 30 minutes after the dispatch instruction is issued.(2) As the ancillary service starts, it should have the ability to provide continuously for up to 120 minutes. |
| Recovery Time | 240 minutes | When the ancillary service ends, it should resume standby within 240 minutes and accept the next dispatch instruction at any time. |
Take from：Taipower - Ancillary Service and Reserve Capacity Trading Platform - Specifications
AFC Grid-Connected Energy Storage Combination
ESS Infrastructure
Product Advantages
We adopt the battery made by one of the pioneering companies that manufacture industrial grade NMC lithium ternary batteries worldwide. It continuously improves battery safety and integrates each level of system engineering design technology. Besides, its MW-class lithium battery system has served the world for more than 10 years. It attaches great importance to battery safety and high-efficiency charge and discharge, and emphasizes intelligent logic control and cutting-edge system integration technology in response to the changeable specification requirements of ancillary service products, with fast-response frequency regulation and function for 4-hour continuous shift in peak and off-peak.
Battery
• NMC HE 103Ah (@0.5C, maximum discharge at 1C)
• NMC HP 85Ah (@1C, maximum discharge at 3C)
• 10-year battery warranty with usable life for 15 years
• Voltage range：DC 844.8 ~ 1090.32V
• Safety certification：
Cell：UL9540A, UL1642, UL1973, IEC62619, UN38.3
Module：UN 38.3, IEC 62619
Rack：IEC62619, IEC61000, IEC62477-1
• Cycle life：6,000 - 8,000 times
PCS
• DC: 760 - 1500V
• AC: 480 - 690V
• Conversion efficiency: > 98%
• Grid harmonic current: < 3% (comply with IEEE519)
• Cooling method: forced air cooling
• Protection rating: NEMA 3R / IP55
• Communication interface: Modbus TCP
• International certification: UL1741, IEC62109, IEEE1547
The complete Energy Storage Solution is applicable to multiple fields
From solar inverters to the whole ESS system, Billion Electric Group cooperates with international major manufacturers to provide complete solutions. Billion provides a one-stop complete energy storage solution suitable for industrial and commercial fields, power transmission and distribution stations, and power plants ranging from 100KWh to MWh. Billion Electric Group uses high-efficiency energy storage cells for high-density and high-precision packaging. ESS includes battery modules (Pack), Power Conversion System(PCS), battery management systems (BMS), energy management systems (EMS), and a container-type energy storage station.
