BOULDER CANYON PUMPED STORAGE PROJECT Sam Mannan Project Manager Los Angeles Dept. of Water and Power (LADWP) Agenda
Background Why Energy Storage? Duck Curve and Renewables
LADWP’s Experience in Pumped Hydro - CASTAIC LADWP and Hoover
The “Boulder Canyon Pumped Storage” Project Ongoing Assessments
Key Challenges Conceptual Timeline
2 LADWP Overview
• Largest municipal utility in the USA • 1.5 Million power customers & 680,00 water customers • Owns more than 25% of state’s transmission lines • Reached 20% renewables in 2010; well-positioned to meet state-mandated level of 33% by 2020
3 Utility Description
• LADWP is a vertically integrated utility: – LADWP owns and operates its own generation, transmission, and distribution system – Glendale and Burbank are within LADWP’s Balancing Authority Area
4 State Mandates
Regulation Description SB100 - Achieve the 50% by December 31, 2026 - Achieve a 60% target by December 31, 2030 - Policy that eligible renewable energy and zero-carbon resources supply 100% by December 31, 2045. Once Through Cooling (OTC) - Assess the extent to which scheduled OTC units are vital to maintain system reliability and resource adequacy - Determine viable alternative solutions to repower OTC units without sacrificing system reliability, and perform cost-benefit analysis for each alternative SB1339 - Requires publicly owned utilities to develop a standard interconnection process and tariffs, as necessary, within 180 days of a request from a customer or developer - Microgrids may include energy storage, forecasting, demand response, etc. Any resource that meets California Air Resource Board (CARB) standards AB2514 - Requires LADWP to set its ESS procurement targets if it is viable and cost effective - First target date - December 31, 2016 - Second target date - December 31, 2021 SB32 - CARB shall ensure that the Statewide Green House Gas (GHG) emissions are reduced to at least 40% below 1990 levels by 2030
5 Background
• Clean energy policy goals along with legislative efforts to decarbonize power resource supplies are generating significant amounts of excess solar and wind energy for utilities throughout the Southwest
• While LADWP has deployed batteries as one of several energy storage options, hydro-based Pumped Storage is a proven technology that can be cost effective and potentially less environmentally impactful
• To date, LADWP has installed 22.6 MW of new energy storage and is currently evaluating a wide range of energy storage options including pumped storage
6 Energy Storage Technologies
Types of Energy Storage Lithium Polymer Batteries
Lithium Ion Batteries #1 Chemical Sodium Sulfide Batteries
Flow Batteries Chillers, Ice #2 Thermal Hot Water Heaters
Pumped Storage #3 Gravity Train Rail
Flywheels #4 Mechanical-Kinetic Compressed Air
7 ‘Duck Curve’ Ramping Challenge
8 Renewable Curtailment in California
Note: LADWP is not having this challenge today. 9 Castaic Power Plant – 1250 MW
- Castaic is sited on west branch of California State Aqueduct
- The Project is a cooperative venture between LADWP and the California Department of Water Resources (DWR)
- Castaic follows LADWP system load and provides for spinning reserve requirements
10 Castaic Pumped Storage Plant
Pyramid Lake - Upper reservoir
30 ft. diameter power tunnel 7.3 miles long
One 55 MW Pelton unit for pump starting and load following
Six 271 MW reversible pump-turbines
Elderberry Lake - Tailbay
Castaic Lake - Storage reservoir
11 LADWP and Hoover
• Since 1937, LADWP is an original participation of the Hoover Dam. LADWP also operated the plant.
• Currently LADWP is committed to participate through 2067.
• Hoover is accounted for both electric “generation and capacity” in LADWP’s energy portfolio.
• LADWP, together with the other Hoover Contractors, continues to participate in the Lower Colorado River Multi-Species Conservation Program.
• Hoover provides base load, carbon neutral, hydro electric energy at a very competitive rate.
12 Hoover Hydro Electric Power Plant
13 14 15 Boulder Canyon Pumped Storage
CONCEPTUAL
16 Boulder Canyon Pumped Storage
CONCEPTUAL
17 Proposed Routes
18 Proposed Routes
19 Recap - Meetings Held to Date
Bureau of Reclamation – Lower Colorado • Dr. Terry Fulp, Regional Director • Jacklynn Gould, Deputy Regional Director • Len Schilling, Area Manager • Theresa Saumier, Manager, Facilities Services • Daniel Bunk, Boulder Canyon Operations Office (Water Operations) • Marc Maynard, Resource Management Office (Land and Environmental) • Mike Bernardo, Region Director Special Assistant
National Park Service
• Lizette Richardson, Superintendent
• Mike Boyles, Lands, Planning, and Compliance Specialist
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Arizona Power Authority U.S. Dept. of the Interior • Ed Gerak, Exec. Dir. • David Hayes, Former Deputy • John Underhill, Interim Deputy Secretary Director • Michael Connor, Former • Linda Sullivan, Sr Deputy Secretary Rate Analyst
Colorado River Board • Christopher Harris, Exec. Director Colorado River Commission • Jayne Harkins, Exec. Dir.
• Douglas Beatty, Chief Finance Southern California Public Power Authority (SCPPA): and Administration • Michael Webster, Exec. Dir. • Christine Guerci, Special Council
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• Southern Nevada Water Authority Colby Pellegrino (Colorado River Program Manager) Greg Walch (General Counsel) • Las Vegas Valley Water District John Entsminger (GM) Dave Johnson (DGM) • WAPA Jack Murray, Vice President of Power Marketing • Boulder Canyon Coordinating Committee • Metropolitan Water District of Southern California Jon Lambeck, Manager of Power Operations and Planning Ann Finley, Principal Engineer • Metropolitan Water District of Southern California Jon Lambeck, Manager of Power Operations and Planning Ann Finley, Principal Engineer
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Conceptual Proposal Criteria’s
Location - TO and FROM
Leveraging Hoover Dam to Increase Capacity Factor
Hydraulic Model Assessment
Production Model - Initial Cost
23 New Partnership
• The project requires “new partnership” for successful implementation • There will be consequences, but we want them to be good consequences.
24 LADWP Internal Groups Collaboration
City Attorney Office Laboratory and Financial Test Lab Services
Right-Of-Way Environmental
Project System Real Estate Team Planning
External Mechanical Generation Engineering
AC/DC Civil Substation Engineering Design Structural Engineering
25 LADWP – New Group of Six Engineers
LADWP Management Senior AGM/COO/Director
Sam Mannan (Project Manager)
Vanessa Omar Torres Manuel Walker Eric Escamilla Environmental City Attorney Gonzalez
Joe Avila Consultants (Staff to GM) (TBD)
26 Ongoing Tasks Hydraulic Head Loss Calculations Studies: Water Allowances Effects to Downstream Water Supply Water Schedule – Impact and Integration Pump Sizing Operational Characteristics
27 Ongoing Tasks Engineering System Impact Study Assessment: Short Circuit calculations Facilities Study Piping Vs. Tunneling Major Equipment /Ratings Transmission Accessibility Substation Location Pump Sizing / Locations Electrical Integration System Impact
28 Major Challenges
Recreational Federal/State Environmental Forest Services Activities Local Approval Businesses
MSCP Hydraulic No (Multi-Species Water Rights Adverse Water Partnerships Conservation Affects Program)
Renewable MW vs Cost RPS Right-of-Way Accountability Payback
29 Conceptual Timeline
2018- Outreach/planning/feasibility/engineering/financial 2022
2022- 2024 Environmental Impact Study & Reports
2024- 2028 Construction
2029 Testing
2030 Commissioning
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