1 / 15

Analyzing Intra-BA Pseudo-Ties and Market Flow Calculation Errors

This document discusses the impact of internal pseudo-ties on market flow calculations within the Tennessee Valley Authority. It highlights how these pseudo-ties can lead to inaccuracies in forward and reverse market flow values, consequently affecting relief requirements for markets in the IDC. The calculations demonstrate how adjustments to generator ties can influence overall market flow impacts while maintaining net market flow values. This analysis emphasizes the necessity for precision in market flow calculations to ensure accurate reporting in energy markets.

lyneth
Télécharger la présentation

Analyzing Intra-BA Pseudo-Ties and Market Flow Calculation Errors

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Intra-BA Pseudo TiesErrors to Market Flow Calculations Nate Schweighart Tennessee Valley Authority 02/11/2014

  2. Premise • Pseudo ties internal to a market can cause the forward and reverse market flow calculations to be incorrect. • This causes errors in the determination of relief requirements for markets in the IDC, because the IDC uses the forward flow impacts when determining relief obligations.

  3. BA LBA 1 LBA 2 G2 G1 • Market Flow = GTL Impact LBA 1 + GTL Impact LBA 2 + Transfer Impact L3 L1 L2 Flowgate

  4. Step 1: GTL Impacts BA LBA 1 LBA 2 G2 G1 500 L3 L1 L2 250 250 Flowgate

  5. Step 1: GTL Impacts BA LBA 1 LBA 2 G2 G1 500 L3 L1 L2 500 Flowgate

  6. Step 2: Transfer Impacts BA LBA 1 LBA 2 G2 G1 L3 L1 L2 500 250 250 Flowgate

  7. Step 3: Calculate GLDFs • LBA1 GTL GLDF = .15 - (.1 + .3)/2 = -.05 • LBA2 GTL GLDF = .4 - .2 = .2 • LBA2 Transfer GLDF = .4 - (.1 + .3)/2 = .2

  8. Step 4: Calculate Impact BA LBA 1 LBA 2 G2 G1 L3 L1 L2 Flowgate x =

  9. Market Flow Impact Forward Flow = 100 + 100 = 200 Reverse Flow = 25 Net Flow = 200 - 25 = 175

  10. Now Let’s Pseudo Tie the Generator in LBA 1 to LBA 2 BA LBA 1 LBA 2 G2 G1 L3 L1 L2 Flowgate

  11. Step 1/2: GTL/Transfer Impacts BA LBA 1 LBA 2 G2 G1 L3 L1 L2 Flowgate

  12. Step 3: Calculate GLDFs • LBA1 GTL GLDF = n/a. There is no gen in LBA1 now • LBA2 GTL GLDF = ((.15*500 + .4 * 1000)/1500) - .2 = .116667 • LBA2 Transfer GLDF = ((.15*500 + .4 * 1000)/1500) – (.1 + .3)/2 = = .116667

  13. Step 4: Calculate Impact BA LBA 1 LBA 2 G2 G1 L3 L1 L2 Flowgate x =

  14. Market Flow Impact Forward Flow = 58.333333 + 116.66666 = 175 Reverse Flow = 0 Net Flow = 175 – 0 = 175

  15. Summary • The intra-BA pseudo tie did not change the net market flow value but did change the forward and reverse market flow values • Therefore, internal BA pseudo ties can potentially cause the markets to misreport their forward and reverse market flows.

More Related