1 / 7

Pumped Storage Hydro 10 Year Requirement

Pumped Storage Hydro 10 Year Requirement. NEPOOL Markets Committee September 8, 2009 Robert B. Burke – Principal Analyst, Market Development. Background. What is the requirement? Why was this requirement there? What has changed?

miriam-hamilton
Download Presentation

Pumped Storage Hydro 10 Year Requirement

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. Pumped Storage Hydro10 Year Requirement NEPOOL Markets Committee September 8, 2009 Robert B. Burke – Principal Analyst, Market Development

  2. Background • What is the requirement? • Why was this requirement there? • What has changed? • What is the proposed language change to Manual M-20 Attachment D Supplement A

  3. Pumped Storage Hydro Requirement • At the time of initial commercial operation and at least once every ten (10) years thereafter, a CCA demonstration should be conducted to verify the upper reservoir's total Energy content (MWh) and the station's hourly generating capability at decreasing heads. A similar CCA demonstration should be conducted to determine the time (hours) and Energy (MWh) required to restore the upper reservoir.

  4. Why was this requirement there? • Prior to the wholesale markets, New England operated under an “own load” settlement with regional dispatch of all generation by NEPEX • For billing purposes, each utility performed an “own load” dispatch to meet their actual load • Own load was a paper dispatch of the utility’s resources performed after the fact to meet their actual load • Used a weekly cycle for pumped storage hydro • Own load needed to know the total energy that should be in the upper reservoir at the start of the weekly cycle • Own load needed to know how long it would take to refill the upper reservoir from empty

  5. Why? (continued) • Pumped storage hydro facilities have a 10 year FERC licensing requirement to inspect all structure normally under water • Required dewatering of the upper reservoir to access power shaft • Coordinate both needs into one

  6. What has changed? • Own load no longer used • Wholesale market design requires pumped storage hydro to provide energy remaining in the pond on daily basis • ISO doesn’t need to reconfirm total energy in a full upper reservoir • Now managed by lead market participant • ISO doesn’t need to reconfirm time to refill upper reservoir • Inspections are now performed using robotics • Don’t need to dewater the facility for inspection

  7. Proposed Rule Change • Changes to Manual 20 Attachment D Supplement A • Remove 10 year requirement to conduct upper reservoir’s total energy content • Remove 10 year requirement to determine time to refill upper reservoir from minimum operating level • Redline/strike out version of affected pages of M-20 Attachment D Supplement A provided with this presentation

More Related