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 Morrell Canyon • Will be one of the most efficient pump storage plants in the world
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
LEAPS Project History • 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 of resources, they withdrew in March, 2001. • Supported by local Federal and State representatives
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!
Turbine – Leaps Comparison Peaker Combined Cycle LEAPS Air Quality Issues NOx, CO, VOC, PM10 NOx, CO, VOC, PM10 None required Offsets Offsets Dispatchability 10 – 60 minutes 1 – 4 hours 15 Seconds Black Start 10 – 30 minutes No 15 Seconds Dispatchable Can produce either Dispatchable capacity Dispatchable capacity from Capacity energy or capacity limited between 70-100% 1-100% of full load 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 Yes Yes. When pumping and used for voltage generating support Comparable Heat Appx. 10,000 – 12,000 7,000 Appx. 18% more efficient Rate than lowest off–peak rate Alternative Fuels No No Yes; can source pumping or Renewables energy from renewables Mitigation of No No Yes; up to 600 MW of Overgeneration pumping load during off Conditions peak periods
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
Public Benefits • Viable and less expensive transmission route through public lands and outside 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
Grid 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
Cost Summary • LEAPS Total Cost: ≈ $470 million • Transmission Line Total Cost: ≈ $170 million • Total Combined Project: ≈ $650 million
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