The T1 Capacity Market Mock Auction has now concluded. The Confirmation of Entry Window for T4 Capacity Market Auction is now open and closes on Tuesday 7th February at 5pm.
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​​​​​​​​Transitional Auction 2017 - Published Round Results


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Capacity Market Rule 5.5.18 Requires the Auctioneer to Announce and Publish the following information prior to the start of each Bidding Round:

  • ​​The Bidding Round Price Spread.

  • ​​​The Potential Clearing Capacity at the Bidding Round Price Floor​ for that Bidding Round.

  • Except in relation to the first Bidding Round, the Excess Capacity as at​ the start of the Bidding Round..

 

​The Bidding Round Price Spread will be £5/kW for each Bidding Round, as described in the Auction Guidelines.  The "Potential Clearing Capacity" is identical to the demand curve at a given price. The Excess Capacity is the excess of supply over demand at a particular price. The Excess Capacity is rounded to the nearest 100 MW, where the Excess Capacity falls below 100 MW, "Below 100 MW" will be displayed. Once the (unrounded) Excess Capacity falls below zero, the Auction will clear, subject to Capacity Market Rule 5.9.

These values are displayed in the Table below and charted in Figure 1. They will be updated approximately 10 minutes prior to the start of each Bidding Round. This coincides with the release of this information to Bidders.  

The graph below shows the Rounded Excess Capacity added to the Potential Clearing Capacity, that is, the Remaining Capacity, or Supply. The supply will only be shown at a Bidding Round Price Cap/Floor, with a linear interpolation within a round.  Two curves will be shown, giving upper and lower bounds for the supply, given the rounding to the published Excess Capacity figures.

By examining the Capacity Market Register, it can be verified that the Capacity entering the Auction is 372.987 MW De-Rated Capacity. This Capacity is the s​​upply at the Auction Price Cap in Figure 1 below.



The Auction has cleared in Round 6. The Clearing Price is £45/kW/year.


The full Provisional Results Report is available here 

The Provisional Results Report​ Appendix A is available in .xlsx format 

The Auction Results will remain Provisional until 3rd April 2017 (Auction Results Day).​


The Final Results Report  is available here.

The Final Results Report Appendix A is available in .xlsx format here​.



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Round Number​​​

​Bidding Round Pric​​e Spread​

(£/kW/yr)

​Potential Clearing Capacity at the Bidding Round Price Floor​ (MW)

​Excess Capacity as at the start of the Bidding Round​ (MW)

Round 1​​75 - 70138.462​-
​Round 2​70 - 65​176.923​200
Round 3​​65 - 60215.385​​200
​Round 4​60 - 55​​253.846​100
​Round 5​55 - 50​292.308​Below 100
​Round 6​50 - 45​316.327Below 100

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