Dispatchable Solar Power, Solana
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Transcript of Dispatchable Solar Power, Solana
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Dispatchable Solar Power Meeting the needs of utilities
Solana: The worlds largest parabolic trough solar power plant 280 MWe with 6 hours of thermal energy storage
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Solana site location:
The Solana site is located west of Gila Bend, AZ, approximately ~70 miles southwest of Phoenix.
Gila Bend•
Solana Site
Map extent
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Solana Site
• High solar
resource
• Minimal slope
• Proximity to
electric grid
• Proximity to transportation
corridors
• Water availability
• Previously
disturbed land
Siting considerations
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4 Plant Size: 280 MW gross generation, 2 x140 MW turbines, ~250 MW net after station parasitic loads
Solana Power Station
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5 Solar Field Size: 2,200,000 m2
Land Area: 3 square miles, formerly agriculture
Solana Power Station
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Thermal Energy Storage (TES): 6 hours of full load operation 2-tank, indirect, molten-salt TES
Six parallel TES trains
Solana Power Station
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Solar field
Power block Thermal Energy Storage
Heat transfer fluid system
Parabolic trough process flow diagram with indirect Thermal Energy Storage
Solana Power Station
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Solana Power Station
Warm-up Charging Thermal Energy Storage Electric Power Generation Charge TES & Power Generation Power Generation from TES
Heat Transfer Fluid System
Parabolic trough process flow diagram with indirect Thermal Energy Storage
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Solana Power Station
Aerial view of the Power Block
TES
Unit #2 Unit #1
HTF Area
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Solana Power Station
Storage allows improved operational flexibility to meet utility peak loads. APS system peaks:
Summer Peak: 12 Noon to 8pm, June - September
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Summer Production Profiles
Electricity demand (not scaled) Solar Radiation (not scaled) CSP plant generation
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Solana Power Station
Storage allows improved operational flexibility to meet utility peak loads. APS system peaks:
Winter Peak: Early morning, evening
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Winter Production Profiles
Electricity demand (not scaled) Solar Radiation (not scaled) CSP plant generation
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Economic benefits
Jobs
Over 2,000 jobs during construction
phase
Over 85 skilled jobs during operation
Total Arizona benefit
Over $1B in direct investment
$300M to $400M in 30-year tax
revenues
Solana’s economic benefits
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Over 3,000 indirect jobs.
Mirror factory in Surprise,
Helps curb Arizona’s annual
$10B energy dollar outflow
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Annual emissions abated:
Over 475,000 tons carbon dioxide
1,065 tons of nitrogen oxides
520 tons of sulfur dioxide
This is the equivalent to removing almost 80,000 cars from the road each year, or half the vehicles that travel on Phoenix’s State Route 60 every day.
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Environmental benefits
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Previously disturbed farm land is an ideal choice
Water use by land activity The power plant is being built on
developed land that was
previously used for agriculture.
Solana will replace an alfalfa
farm, significantly reducing water
consumption.
30,000
25,000
20,000
15,000
10,000
5,000
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Alfalfa farm 30,000
Solana 3,000
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Components Mirrors, collector assembly Perimeter fence/grading, pond Thermal Storage foundation Steel tanks Substation/transmission lines IT controls Feed water vessels Pump motors Heat Transfer Fluid and pumps Pressure heaters Thermal Storage Equipment Receiver tubes Ball joint assemblies Water treatment equipment Collector foundations Cooling / condensing system Night HTF pumps Hydraulic drives Piping/insulation
Abengoa supply chain spans the country
29 states and 165 companies
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Let’s have a look at it!