PROJECT PROFILE

The proposed Big Chino Valley Pumped Storage Project will use energy storage technology to anchor new electricity transmission infrastructure as an all-encompassing, integrated energy solution to the region’s growing energy needs.

The proposed project involves significant investment to develop a large-scale, 2,000 MW closed loop pumped storage hydro facility, one powerhouse and two reservoirs covering 420 surface acres . The project also includes three transmission interconnections to serve Arizona, Nevada and Southern California. ITC is evaluating the following corridors to locate the three transmission interconnections:

  • Eldorado Corridor: A 500 kV, approximately 145-mile line that travels north to interconnect with the existing Southern California Edison owned and operated Eldorado Substation
  • Peacock Corridor: A 500 kV, approximately 20-mile line that travels west to interconnect with a Western Area Power Administration (WAPA)-owned line near the Peacock Substation 
  • Yavapai Corridor: A 500 kV, approximately 50-mile line that travels east to interconnect with the Arizona Public Service -operated Yavapai Station

How it Works
Pumped hydro storage is a common, proven technology used worldwide to support smart-grid transmission and efficient energy storage and usage. This facility will pump water from a lower reservoir to an upper reservoir during periods of high renewable generation and/or low electrical demand and store it as potential energy, like a large electric battery. The facility can return the stored energy to the grid on demand by flowing water by gravity through a generation turbine back to the lower reservoir. Transmission lines carry the energy to where it’s needed – presenting an integrated generation and transmission solution for the region.

     

Engineering_July 2018

     


If constructed, the project will require one-time in-fill of around nine billion gallons of water from the Big Chino aquifer. Due it its innovative closed-loop design, the project’s operations will result in approximately 925 acre-feet of evaporated loss per year, which is less that the current approximate use of 1,500 acre-feet of water used annually for agriculture on the existing ranch property that relies on the aquifer.

As part of our environmental studies, hydrogeological modeling is also underway with a water work group to assess the extent and impact of the groundwater withdrawal. We are working with this group and other stakeholders to identify potential short-term and long-term strategies to offset these impacts based on sound science – all with the goal of maintaining long-term stewardship of the water and land resources.

Project capabilities and benefits

  • Increases reliability of the electrical grid and regional generation
  • Closed-loop design limits water consumption for initial and ongoing water usage
  • Reduces transmission congestion
  • Fast ramping capabilities and reduced over-generation risk
  • Frequency regulation and improved voltage stability
  • Firming of renewable resources
  • Reduced resource cycling and renewable curtailment
  • Resolves largest WECC contingency in creating a diverse outlet for Eldorado-Moenkopi transmission line in CAISO
  • Presents a near 1-to-1 replacement of any temporary loss of energy capacity from Palo Verde Nuclear Station near Phoenix when partnered with a similar amount of solar energy (e.g. unit trip)
  • Ancillary support for the operational characteristics of the Southwest transmission grid as the region responds to the increased penetration of renewable resources
  • An Arizona State University study estimates the project will generate an additional $5.1 billion to statewide GDP, and 45,871 additional job years of employment over a 25-year period.



PROJECT TIMELINE

The Federal Energy Regulatory Commission approved ITC’s request to prepare the project’s licensing application with the Traditional Licensing Process. Over the next two years, in consultation with stakeholders, ITC will design study plans, conduct studies, prepare environmental analyses and develop a draft licensing application – with a goal to file the project’s final license application in 2020.

Anticipated Traditional Licensing Process Milestones

     

BCV_Timeline

     

PROJECT STATUS

  • Posted Oct 04, 2018

    FERC SCHEDULE of anticipated key dates for Big Chino Valley Project Licensing released.

  • Posted Oct 04, 2018
    On October 4, 2018, Big Chino Pumped Storage LLC SUBMITTED a Supplement to Notification of Intent (NOI) and Pre-Application Document (PAD) to FERC.

  • Posted Oct 02, 2018
    View the latest project overview presentation for full details on the Big Chino Valley project.
  • Posted Aug 09, 2018
    On August 6, 2018, Big Chino Pumped Storage LLC released a Joint Stakeholder Meeting Comment Matrix.
  • Posted Jul 27, 2018
    On June 27, 2018, Big Chino Valley Pumped Storage LLC hosted a Joint Stakeholder Meeting. See Transcript and Proof of Publication.
  • Posted Jun 29, 2018
    On June 27, 2018, ITC Holdings Corp., hosted a joint stakeholder meeting in Prescott, Arizona. 

    View the presentation
  • Posted May 23, 2018
    On May 22, 2018, FERC Approved Big Chino Valley Pumped Storage LLC’s Request to Use Traditional License Process and Issued a Public Notice.
  • Posted Mar 30, 2018

    On March 30, 2018, Big Chino Valley Pumped Storage LLC submitted an Errata to its filing of a Notification of Intent (NOI) and Pre-Application Document (PAD) with FERC.

  • Posted Mar 30, 2018

    On March 30, 2018, Big Chino Valley Pumped Storage LLC submitted its Notification of Intent (NOI) and Pre-Application Document (PAD) to FERC.

  • Posted Mar 30, 2018
    On March 30, 2018, ITC Holdings Corp. issued a public notice regarding filing a Notification of Intent (NOI) and Pre-Application Document (PAD) FERC.
  • Posted Jan 23, 2018
    On January 23, 2018, Big Chino Valley Pumped Storage LLC submitted its Initial Information Package to FERC.
  • Posted Dec 28, 2017
    On December 28, 2017, the U.S. Federal Energy Regulatory Commission issued the preliminary permit for Big Chino Valley.
  • Posted Oct 13, 2017
    On October 13, 2017, the U.S. Federal Energy Regulatory Commission gave notice the preliminary permit application was accepted.
  • Posted Oct 10, 2017
    On October 10, ITC filed a supplement to its permit application to the U.S. Federal Energy Regulatory Commission.
  • Posted Sep 29, 2017
    On September 29, 2017, ITC filed a major permit application with the U.S. Federal Energy Regulatory Commission. 

Water_Map


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