Lake Elsinore Advanced Pump Storage (LEAPS) and Talega-Escondido / - - PowerPoint PPT Presentation

Lake Elsinore Advanced Pump Storage (LEAPS) and Talega-Escondido / Valley-Serrano (TE/VS) Transmission Line Project

Presentation to the San Jacinto Watershed Council October 7, 2004

LEAPS & TEVS Transmission Line Project Map

Pump Storage Project Description

• Nominal 500 MW power project utilizing

pump turbine machines

• Upper reservoir in Morrell Canyon of the

Cleveland National Forest

• Lake Elsinore to be the lower reservoir

with penstock tunnels for inlet/outfall

• Power plant ~ 240 ft below the surface of

Lake Elsinore

• Advanced pump storage plant:

– Pump lower reservoir water to upper reservoir during off peak energy periods – Return water through the turbines and generate power during peak energy periods

• Will be one of the most efficient pump

storage plants in the world

Morrell Canyon

Talega-Escondido / Valley-Serrano Transmission Line Project Description

• 28.5 mile 500 kV transmission line
• 1,600 MW design capacity
• Most of the line runs through National Forest land
• Application for line accepted by the US Forest

Service

• Language in current Energy Bill in Congress directs

USFS and BLM to facilitate routing

• USFS has agreed to work with FERC to permit both

projects under FERC direction

• This is the wires and non–wires solution to one of

the most congested region in California

Lake Elsinore Facts

• Largest natural lake in Southern California ≈ 3,000 surface acres
• Located 80 miles to Los Angeles & 40 miles to San Diego
• State transferred ownership of lake to the City in 1993
• Project to improve inflow and outflow and lake health
• Water improvement works completed in 1995:

– Freshwater wells – 17,800 ft. earthen levee – 350 acres of wetland habitant

Lake Management History

• Until 1995, Lake Elsinore is part of California Park System. The State

attempts to offset the Lake’s evaporation losses and control flooding for several decades with little or no success

• In 1988 Lake Elsinore Management Authority (LEMA) was created to

design a project to maintain lake levels and prevent future flooding

• In 1993, a Bureau of Reclamation Loan of $26 million and local

contributions of $13 million LEMA constructed the Lake Management project

• 1995 State deeded the Lake over to EVMWD and the land under the

Lake to the City of Lake Elsinore

• 2000 State Proposition 13 passes creating the Lake Elsinore San

Jacinto Watershed Authority (LESJWA) and appropriating $15 million for watershed cleanup in the Lake Elsinore San Jacinto Watershed

• Elsinore Valley Municipal Water District

“District” applied to FERC 3/92

• Application was pre-empted by adjoining

cities of Anaheim, Azusa, Banning, Colton & Riverside – Agreement that District develop project

• The Hydro Company agreed to develop

project for District in 1997

• Enron North America was briefly involved,

but no agreements were ever signed – Following a company directive to no longer develop assets and stating a lack

• f resources, they withdrew in March,

2001.

• Supported by local Federal and State

representatives

LEAPS Project History

Technology/Equipment

• 2-Voith Siemens pump turbines
• Each unit will pump water or generate

power

• When coupled with a 337,500 HP generator,

each pump turbine produces 250 MW

• 2 - Penstocks, each 18 ft. diameter
• Power plant:

– Total head at turbines ≈ 1640 ft. – Lake will fluctuate 18” max. (over 16 hour period)

• Water system flow:

– Head Lake, Morrell is at 2,880 ft. elevation and will hold ≈ 5,500 acre feet – Lower reservoir, Lake Elsinore at 1,240

• ft. elevation, contains ≈ 68,000 acre

feet

Turbine Wheel

Easy LEAPS Performance Facts

• 83.3% wire–to–wire efficiency for electricity storage
• Pump for 1 hour (@ 600 MW) allows generation for 1 hour

(@ 500 MW)

• Daily maximums:

– Generation: 12 hours at 500 MW – Storage: 12 hours at 600 MW – Nominal Storage: 6,000 MW Hours

• Fully dispatchable in 15 seconds
• Can operate for up to 18 continuous hours in emergency
• Lake will fluxuate ± 6 inches to a maximum 18 inches

Pumped Storage vs. Combustion Turbine Efficiency

Combustion Turbine Pumped Storage Off-Peak Heat Rate 7,000 BTU/kW 600 MW On-Peak Heat Rate 10,500 BTU/kW 500 MW Wire to Wire (15%) Included Net Efficiency 65.2% 83.3% 18.1% more efficient!

Peaker Combined Cycle LEAPS

Air Quality Issues NOx, CO, VOC, PM10 Offsets NOx, CO, VOC, PM10 Offsets None required Dispatchability 10 – 60 minutes 1 – 4 hours 15 Seconds Black Start 10 – 30 minutes No 15 Seconds Dispatchable Capacity Can produce either energy or capacity Dispatchable capacity limited between 70-100% full load Dispatchable capacity from 1-100% of full load Regulation No Yes; limited to 5 MW/min. Yes; up to 500 MW/min. Spinning Reserve No Yes; limited to 5 MW/min. Yes; up to 500 MW/min. Voltage Support Yes; but typically not used for voltage support Yes

• Yes. When pumping and

generating Comparable Heat Rate

• Appx. 10,000 – 12,000

7,000

• Appx. 18% more efficient

than lowest off–peak rate Alternative Fuels

• r Renewables

No No Yes; can source pumping energy from renewables Mitigation of Overgeneration Conditions No No Yes; up to 600 MW of pumping load during off peak periods

Turbine – Leaps Comparison

Costs to EVMWD for Maintaining Lake Elsinore

• Current projects

– $15 million from LESJWA

• Future projects

– Initial capital from $11 million to $22 million – Annual operating costs from $2 million to $5 million – Costs depend on standards set by the Regional Water Quality Control Board

• LEAPS is designed to substantially offset future

expenses for Lake Management and provide a stable lake level

Permitting History

• 9/15/00 - Submitted preliminary application to FERC
• 12/01/00 - Selected equipment supplier
• 2/21/01 - FERC issued preliminary permit PN11858-000
• 4/23/01 - Initial consultation package to all agencies
• 6/12/01 - Joint public meeting @ EVMVD
• 9/09/03 - Draft FERC application distributed to 140

agencies and interested parties

• 2/2/2004 - License Application filed with FERC
• 9/9/2004 - FERC environmental scoping meetings @

EVMWD Headquarters

Licensing Schedule*

If Federal Energy Bill passes, requires decision on transmission corridor (at least) in 1 year max FERC license application submitted February 2004 Joint FERC-USFS-EVMWD NEPA/CEQA process FERC anticipates 6-12 months to receive FERC license and joint state environmental permits (USFS Cooperating Agency) Permits for Line and LEAPS may be issued concurrently or not Optimally, line operational around early-2007 Leaps Unit 1 on line late-2007 Leaps Unit 2 on line late-2008

• Viable and less expensive transmission route through public lands and
• utside of CPUC process
• Economic growth to area
• Improve water quality and stabilize level of Lake Elsinore
• Added recreational benefits
• Electricity to San Diego and Los Angeles without creating air

emissions

• Fire fighting reservoir (and fire break?) in Cleveland National Forest
• Visitor center will attract 200,000 annual visitors and generate perhaps

$2 million annually

• Will help the State use Renewable Energy resources more efficiently
• Project can be completed in a real time frame

Public Benefits

• Store off peak to sell on peak (renewables management)
• Dispatchable in 15 seconds (with units spinning)
• Black start in 10 minutes
• Full range of Ancillary services
• Provides regulation, load following and voltage support
• Increased system reliability
• Manage and firm wind and other renewables

Grid Benefits

Cost Summary

• LEAPS Total Cost: ≈ $470 million
• Transmission Line Total Cost: ≈ $170

million

• Total Combined Project: ≈ $650 million