Bidding Mechanics  
Bidding Mechanics
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Bidding Mechanics for the Day-Ahead Market


  1. Available capacity for each area and floor prices shall be offered by NPC for bidding in a day-ahead market but on hourly floor prices for a moving 7-day period, indicating therein the 3-day Firm Floor prices and 4-day Indicative Floor prices. Each bidder can bid in any desired time period.
  2. The awarded day-ahead quantity shall form part of the customer’s bilateral contract quantity, if there is any, for the particular period.
  3. The general rule is that the electricity consumed under the E-ODPS shall always be equal to the electricity reduced by his self-generation. This will be the premise in the billing and settlement of electricity consumed under this contract.
  4. Each Bidder can submit one-quantity bid up to or below his MBA at any time.
  5. During the delivery of E-ODPS power that requires synchronization and de-synchronization of self-generating units, the customer shall be allowed a 15-minute changeover allowance (i.e., before synchronization and after de-synchronization) to gradually absorb or yield E-ODPS power. Likewise, a 1.5% allowance over the awarded contract demand, during the availment period shall be allowed. In any event, the actual energy consumption including the 15-minute time allowance and the 1.5% contract demand allowance shall not be more than the awarded E-ODPS equivalent energy. Energy consumed in excess thereof shall be charged at the applicable ERC approved rates or at the ex-post settlement price of the spot market, whichever is applicable.


Enhanced One-Day Power Sales Program * National Power Corporation * All Rights Reserved @2006