El Porto Project City of Manhattan Beach

September 2014

Presentation Outline

• Overview of Reliability in Manhattan Beach• Overview of the El Porto Project• Q&A

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• As part of our long-term plan to upgrade and modernize our grid, Southern California Edison (SCE) is making electrical upgrades in Manhattan Beach and across the region.

• At SCE, it is our job to make sure that our customers have the robust electrical infrastructure needed to continue to power their future energy needs.

• Upgrading to newer equipment will make the power grid up-to-date and minimize the likelihood of unanticipated and extended outages.

Keeping the Grid Reliable For You

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136.9

63.0

123.9140.7140.9

232.4

108.1 102.6

236

153

93

0.0

50.0

100.0

150.0

200.0

250.0

SAIDI(average

minutes of sustained

interruptions)

SAIFI(average

frequency of sustained

interruptions)

MAIFI(average

frequency of momentary

interruptions)

2010 2011 2013

Reliability History of Circuits Serving Manhattan Beach (No Exclusions)

** “Exclusions” are days which utilities are allowed to remove from their metrics because the outages on those

days were caused by acts of nature.

2012 Median (no exclusions)

1st Quartile(no exclusions)

1st Quartile(with exclusions)

1.0

0.70.9

1.3

1.0 1.0

0.9 0.9

1.5

1.1

0.89

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.3

0.7

1.61.5

1.71.5 1.4

1.2

0.0

0.5

1.0

1.5

2.0

MANHATTAN BEACH

SCE SYSTEMWIDE

2012 performance of 103 utilities surveyed by IEEE

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Causes of Repair Outages in Manhattan Beach Circuits

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El Porto Project Overview

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• SCE reviewed circuit loading and circuit outage history for the area, outage causes, & identified areas for improvement

• Meet load growth electrical demands by cutting over 4kV circuits to 16kV circuits

• Construction activities will include:– Replace over 660 poles

– Install 154 new transformers

– Upgrade equipment in existing underground structures

(1) HILL 4kV• Install (41) 16kV

transformers• Change out 74 poles

• Cable removal in existing ducts & structures

(5) GULL 4kV• Install (50) 16kV

transformers• Change out 79

poles• Cable

removal/upgrades in existing ducts &

structures• ~100’ new conduit

@ Crest Dr. / 27th

St.

(2) SANDPIPER 4kV• Install (113) 16kV

transformers• Change out 175 poles

• Install 16kV transformer in existing vault on Laurel Ave.

between 17th & 18th St

Overview of Construction Activities for El Porto Project

(4) BLANCHE 4kV• Install (88) 16kV

transformers• Change out 130 poles

• Cable removal/upgrades in

existing ducts & structures (various

locations)

(3) KEATS 4kV• Install (36) 16kV transformers

• Change out 68 poles

(6) MEADOWS 4kV• Install (87) 16kV transformers

• Change out 137 poles

EL PORTO

SUB

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Anticipated Work Activities

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• Construction will begin mid-September 2014 through mid-2015 – This schedule may change due to weather and other factors

– Construction will not occur at one location throughout this entire period; crews will move from location to location as work is completed

• Crews may need to access your property to replace poles. You will be notified when crews enter the property.

• During construction, there will be lane closures. SCE will use a combination of traffic control signs and crew members with flags to ensure vehicle and pedestrian safety.

• For crews to work safely, it will be necessary to de-energize our power lines for short periods of time. In these cases, SCE will send notices to affected customers at least 72 hours prior to maintenance outages.

Maintenance Outages• Website: sce.com/outage• SCE Mobile Outage App

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Public Outreach and Communication

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For More Information

Website: on.sce.com/elporto

Ronald GarciaSCE Region Manager

626-303-8419

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