Taiwan Power Company Electricity Trading Platform

Taiwan. Status: operational.

Wholesale design: Regulated single-buyer power system with a competitive Taipower platform for day-ahead ancillary services and reserve-capacity trading; this is not a full wholesale energy spot market.

Market type
National procurement platform
Operator
Taiwan Power Company
Dispatch model
Taipower centralized dispatch with day-ahead competitive ancillary-service procurement from qualified resources.
Pricing granularity
product and hourly bidding period; no generic settlement interval is published in the cited rules
Nominal frequency
60 Hz
Where energy trades

Where does energy trade in Taiwan Power Company Electricity Trading Platform?

Energy in Taiwan Power Company Electricity Trading Platform trades in 2 layers: day-ahead ancillary services and reserve capacity.

What a battery can sell

What ancillary services can a battery sell in Taiwan Power Company Electricity Trading Platform?

Taiwan Power Company Electricity Trading Platform has 4 ancillary-service products, across 3 families — regulation, contingency reserve and replacement reserve: Energy-shifting with Dynamic Regulating Function Reserve, Regulation Reserve, Spinning Reserve, Supplemental Reserve. Response timing, direction and eligibility for each are in the table below; a product's full record lists the official sources behind it.

Every value below comes from the official sources listed in that product's full record. Most products cite more than one, and the published sources do not say which of them states each individual value, so the binding is to the product's record rather than to a single document. A missing line means the source does not state that value — never that the value is zero.

Scroll the table sideways for the rest of the columns →

4 ancillary-service products in Taiwan Power Company Electricity Trading Platform, grouped into 3 families. Each row runs left to right through one product's life: how it activates, how quickly it has to respond, how long it has to keep delivering, and how it is bought.
Service How it activates Response Sustained delivery Procurement
Regulation
Energy-shifting with Dynamic Regulating Function Reserve E-dReg charging and discharging independent trading product since the 2023 rule revision Response type automatic frequency control plus scheduled or instructed energy transfer Trigger frequency-control signal and energy-transfer schedule under Taipower specifications No deadline established product-specific dynamic-regulation specification; no single full-activation deadline is published in the cited overview As stated hourly platform procurement Bought day-ahead hourly product with demand-curve mechanism Pricing design platform demand curve and settlement rules
Full record for Energy-shifting with Dynamic Regulating Function Reserve — a topic in the document is named, but not a page or table
What it is for

Combine dynamic frequency regulation with scheduled or instructed energy shifting to support renewable integration and net-load management.

What the source does not state

The source states a procurement volume in its own words. It does not state a response time or how long delivery has to be sustained.

Sources
Regulation Reserve upward and downward / charging and discharging according to qualified resource operational on Taipower's day-ahead ancillary-service market Response type automatic frequency control Trigger system frequency deviation under Taipower technical specifications Full activation 10 s As stated hourly platform procurement Bought day-ahead hourly trading product Pricing design platform clearing and performance settlement under Taipower rules
Full record for Regulation Reserve — a topic in the document is named, but not a page or table
What it is for

Correct system-frequency deviations through rapid automatic response.

What the source says about timing

1 to 10 seconds

Published checkpoints

Published response range, upper bound: 10 s

Checkpoint recap

Full activation 10 s

What the source does not state

The source states the full-activation requirement and a procurement volume in its own words. It does not state how long delivery has to be sustained.

Sources
Contingency reserve
Spinning Reserve upward operational on Taipower's day-ahead ancillary-service market Response type Taipower dispatch instruction from synchronized qualified resources Trigger contingency or reserve need under Taipower dispatch rules Full activation 10 min Minimum obligation at least 1 h As stated hourly platform procurement Bought day-ahead hourly trading product Pricing design platform clearing and settlement rules
Full record for Spinning Reserve — a topic in the document is named, but not a page or table
What it is for

Provide synchronized operating reserve following a contingency or sudden supply-demand imbalance.

Published checkpoints

Full delivery deadline: 10 min

Checkpoint recap

Full activation 10 min · Minimum sustained 1 h

What the source does not state

The source states the full-activation requirement, a minimum delivery period, and a procurement volume in its own words. It does not state a maximum duration.

Sources
Replacement reserve
Supplemental Reserve upward operational on Taipower's day-ahead ancillary-service market Response type Taipower dispatch instruction Trigger sudden load increase or reserve-replacement need Full activation 30 min Minimum obligation at least 2 h As stated hourly platform procurement Bought day-ahead hourly trading product Pricing design platform clearing and settlement rules
Full record for Supplemental Reserve — a topic in the document is named, but not a page or table
What it is for

Increase operating reserve after a dispatch instruction to address a sudden load increase or longer contingency.

Published checkpoints

Full delivery deadline: 30 min

Checkpoint recap

Full activation 30 min · Minimum sustained 2 h

What the source does not state

The source states the full-activation requirement, a minimum delivery period, and a procurement volume in its own words. It does not state a maximum duration.

Sources
Getting paid to exist

Does Taiwan Power Company Electricity Trading Platform have a capacity mechanism?

No central capacity market. Taiwan Power Company Electricity Trading Platform has 1 capacity/adequacy arrangement — Taipower reserve-capacity market — and it works differently. Responsibility sits with Taiwan Power Company Electricity Trading Unit; Ministry of Economic Affairs Energy Administration as regulator.

Taipower reserve-capacity market

operational trading route; no qualifying centralized 2025 capacity-auction result was identified in public official sources

The regulated reserve-capacity market is a forward resource-adequacy trading route for entities with reserve supply-capacity obligations. Buyers and qualified providers submit quantities and prices through Taipower's platform and contract following competitive matching. It is legally and operationally distinct from the day-ahead ancillary-services market.

platform publication of demand and supply

competitive buyer bidding against seller offers

post-match bilateral contracting

Responsibility
Taiwan Power Company Electricity Trading Unit; Ministry of Economic Affairs Energy Administration as regulator
Unit of obligation
MW of reserve supply capacity measured under the net-peak-capability rules
Auction held in 2025
No () — The mechanism is a decentralized supplier-obligation matching route. Public official sources establish the market and bidding process, but no qualifying centralized 2025 system capacity-auction result was identified; this flag does not assert that no bilateral listing or match occurred.
Revenue routes

Merchant revenue routes

  • ancillary service capacity
  • ancillary service performance
  • reserve capacity
Where this comes from

Official sources

Rules

Service specification

Market explainer

Current as of · from the Global Electricity Market Catalogue v1.2.0 (compiled to , CC BY 4.0, rendered here with wording edited for readability). Facts belong to the linked official authorities; verify the current rules before design or bidding decisions.

Questions

Common questions about Taiwan Power Company Electricity Trading Platform

Who operates Taiwan Power Company Electricity Trading Platform?
Taiwan Power Company operates Taiwan Power Company Electricity Trading Platform, covering Taiwan.
Was a qualifying capacity event held in Taiwan Power Company Electricity Trading Platform in 2025?
No. Taipower reserve-capacity market: no qualifying 2025 event is recorded. The mechanism is a decentralized supplier-obligation matching route. Public official sources establish the market and bidding process, but no qualifying centralized 2025 system capacity-auction result was identified; this flag does not assert that no bilateral listing or match occurred.
How is energy traded, priced and settled in Taiwan Power Company Electricity Trading Platform?
Taiwan Power Company Electricity Trading Platform: Regulated single-buyer power system with a competitive Taipower platform for day-ahead ancillary services and reserve-capacity trading; this is not a full wholesale energy spot market. Dispatch — Taipower centralized dispatch with day-ahead competitive ancillary-service procurement from qualified resources; pricing granularity — product and hourly bidding period; no generic settlement interval is published in the cited rules.
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