San Onofre Nuclear Generating Station (SONGS) Overview - Generation Business Unit - Edison International

7/31/2019 San Onofre Nuclear Generating Station (SONGS) Overview - Generation Business Unit - Edison International

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EDISON INTERNATIONAL

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SONGS | Generation Business Unit

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San Onofre Nuclear Generat ingSt at ion ( SONGS) Overview


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Nuclear18%

Natural Gas51%

Large Hydro5%

Coal10%

Renewables16%

Sout hern California Edison- Largest electric utility in CA- Providing electricity for more than 120

years- 50,000 square mile service area- 12,000 miles of transmission circuits- 100,000 miles of distribution circuits

SCE

SCE Fuel Portfolio


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U.S. Nuclear Pow er Plant s

U.S. has 104nuclear power

reactors

SONGS 2 & 3


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SONGS Unit 2 & 3

Started construction: 1974 Unit 2 on line: August 1983 Unit 3 on line: April 1984 Cost: $4.5 billion Operating Licenses: Feb/Nov 2022

1,070/1080 megawatts net per unit NPDES Permits expired in May 2010

Unit 1 was shutdown and dismantledafter 25 years of service


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EnvironmentalImpactAir No direct emission of greenhouse

gases. Emissions comparable to life-cycle emissions from renewablesources.

Water Thermal none detected

Ecological typical for any power plantlocated near an ocean, river, or lake

Solid Waste

Used fuel safely stored, nationallymanaged

Land Use Relatively compact


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Environment al I m pactOnce-through-coolingis typical for any powerplant located near anocean, river, or lakeand impacts the marineenvironment

SONGS is designedto minimize impactby using advancedtechnology tosignificantly reducefish losses by capturingand returning most fishto the ocean alive.

SCE is fully mitigating marine impacts


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316( b) Compliance-Fish Ret ur n Syst em Fish are guided into fish

handling chamber Elevator lifts fish and pours

into return pipe Efficiency varies with

species Initial studies showed 75-

96% efficiency 11 year study from 1984-

1994, 1999 had an overallaverage of 70%

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Environment al Mit igat ion

San Dieguito Wetland RestorationCreates more than 160 acresof new coastal wetlands

Restored tidal flows, naturalhabitat and vegetation

Protects the wetlands from

flood-borne sediment buildupSignificantly increases fishand wildlife


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Environment al Mit igat ion

Wheeler North Giant Kelp Reef

174-acre artificial reef off SanClemente

Adds significant marine habitat

Creates marine habitat for asmany as 50 varieties of fish andinvertebrates

Increases recreationalopportunities including fishingand diving


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Hubbs Whit e Sea Bass Hat chery

Constructed to help restorewhite sea bass populations toCalifornia

SCE contributedapproximately $5 million tothe project

In 2001, over 100,000 whitesea bass were released to theocean

Capable of producing over350,000 juvenile fish annually

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San Onofre Benefit s

Provides voltage support andstability to the grid.

Reduces our dependence oncoal, natural gas, oil

Since San Onofre has begunproducing power, it has avoidedover 180 million metric tons ofgreenhouse gas emissions andapproximately 100,000 metric

tons of smog producingpollutants


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Comm unit y Benef it s More than $200 millionannually through more than2,000 high-paying jobs forskilled workers

An additional $300 million inlocal economic benefitsfrom the current steamgenerator replacementproject

Approximately $20 millionannually in property taxessupporting local services

More than $300,000 annuallyin employee and companycontributions to local charities

Provide tours & presentationsto >5000 people/yr


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How a Nuclear Plant Works


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Thank you!

Questions?

Documents

San Onofre Nuclear Generating Station (SONGS) Overview - Generation Business Unit - Edison International