1 / 11

Ancillary Services in UPLAN

Ancillary Services in UPLAN. RPG. A/S Bids in UPLAN. Energy Price Calculated each hour from LMP and then used to calculate bids into the A/S markets A/S Bid Opportunity cost of providing A/S instead of energy Direct cost of keeping a unit running at minimum block in order to provide A/S.

thomasdiamond
Télécharger la présentation

Ancillary Services in UPLAN

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. Ancillary Services in UPLAN RPG

  2. A/S Bids in UPLAN • Energy Price • Calculated each hour from LMP and then used to calculate bids into the A/S markets • A/S Bid • Opportunity cost of providing A/S instead of energy • Direct cost of keeping a unit running at minimum block in order to provide A/S

  3. Calculations in UPLAN • Energy and Ancillary Services are Co-optimized with Power Flow and All Transmission Constraints • Energy and A/S Prices are determined simultaneously • Ancillary Service markets are Cascaded – “higher quality” product can be used to satisfy a “lower quality” requirement • Non-spinning Reserve Requirement • Requirement met with Non-Spinning Reserves + Available Spinning Reserves + Available Regulation Reserves • Price = Non-spinning Shadow Price • Spinning Reserve Requirement • Requirement met with Available Spinning Reserves + Available Regulation Reserves • Price = Non-spinning Shadow Price + Spinning Shadow Price • Regulation Requirement • Requirement met with only Regulation Reserves • Price = Non-spinning Shadow Price + Spinning Shadow Price + Regulation Shadow Price

  4. A/S Products used in 2012 5 Year Plan • Spinning in Uplan was set to 1,950 MW in all hours • Replacement Reserve was 1,400 MW of the total in all hours • Regulation Up was 550 MW of the total in all hours

  5. A/S Products proposed for 2013 5 Year Plan • Replacement Reserve (Spinning in UPLAN) • Set to 1,400 MW in all hours • Presented on next 3 slides: • Regulation Up • Regulation Down • Non-Spin • Each product is updated on a month look ahead process • The data presented is from current and historical near term data

  6. Regulation Up

  7. Regulation Down

  8. Non-Spinning

  9. Capacity allocated from resources • Capacity for spinning is not greater than 24% of High Sustained Limit (HSL) • Capacity for other products is based on operating capabilities of each resource • Ramp rates determine the A/S Quantity bid if not specifically included • Ramp size in 10 minutes is used for Regulation and Spin services • Ramp size in 30 minutes is used for Non-spin • The A/S Quantity can also be specifically included for each generator and each A/S market • Resources assigned to each product are from the Resource Asset Registration Form (RARF)

  10. Final Comments • Propose to use the monthly on-peak and off-peak calculated values for each product • What are stakeholders opinions on this issue?

  11. QUESTIONS / COMMENTS???

More Related