James B. McDaniel, Senior Assistant General Manager – Water James B. McDaniel, Senior Assistant General Manager – Water

Los Angeles Department of Water and PowerLos Angeles Department of Water and Power

January 26, 2012January 26, 2012

2012 MSSC Annual Salinity Summit

WATER/ENERGY WATER/ENERGY NEXUSNEXUS

ConveyanceConveyance

California Aqueduct

Colorado River Aqueduct

Los Angeles Aqueduct

Los Angeles Aqueduct Filtration Plant

Ultraviolet disinfection system

TreatmentTreatment

Ozone contactor

Pressure Regulating Station Los Angeles Water Distribution System Grid

Pump Station

DistributionDistribution

CA water-related electrical CA water-related electrical energy consumption is approx. energy consumption is approx. 19% of total electricity used 19% of total electricity used 11

Water and Power FactsWater and Power Facts

1 Source: California Energy Commission Integrated Energy Policy Report http://www.energy.ca.gov/2005publications/CEC-100-2005-007/CEC-100-2005-007-CMF.PDF

Water-Related Energy Use (GWh) in California2006

California Electricity Usage294,865 GWh

19% water-related electrical consumption in CA (56,517

GWh)

Majority of water-related electrical Majority of water-related electrical energy used in CA occurred with end-energy used in CA occurred with end-user user 11

Water and Power FactsWater and Power Facts

1 Source: California Energy Commission Integrated Energy Policy Report http://www.energy.ca.gov/2005publications/CEC-100-2005-007/CEC-100-2005-007-CMF.PDF

Water-Related Energy Use (GWh) in California2006

California Electricity Usage294,865 GWh

5% water supply and treatment

14% end-user consumption

Water Related Energy Water Related Energy Consumption in Single-Family Consumption in Single-Family

Residential SectorResidential Sector

Clothes Washers,

21.0%

Faucets, 17.5%

Showerhead, 40.4%

Landscaping, 8.6%

Dishwashers, 9.0%

Other, 0.2% Leaks, 1.8%

Toilet, 1.5%

Owens Lake Dust Mitigation Owens Lake Dust Mitigation ProjectProject

Shallow flooding dust mitigation

Energy Intensity of LADWP Energy Intensity of LADWP Water SystemWater System

0

500

1000

1500

2000

2500

3000

3500

SWP -

East B

ranch

SWP -

Wes

t Bra

nch

CRA

Syste

m w

eight

ed a

vera

geRec

ycle

d Wat

erG

round

wat

erDis

tribut

ion

Treat

men

t

KW

H/A

F

1,643 KWH/AF

Energy Mix in 2010Energy Mix in 2010

Renewable, 20%

Other, 1%

Nuclear, 10%

Hydro, 5%Coal, 39%

Natural Gas , 26%

Source: LADWP 2010 IRP

Energy Mix in 2030Energy Mix in 2030

Other, 2%

Nuclear, 8% Hydro, 4%

Renewable, 33%

Natural Gas , 54%

Source: LADWP 2010 IRP

Power Generation Carbon Power Generation Carbon IntensityIntensity

0

200

400

600

800

1,000

1,200

1,400

1,600

1,800

1990 1995 2000 2005 2010 2015 2020 2025 2030

Car

bon

Inte

nsity

(lbs

(CO

2/M

Wh)

L.A. Water Use and L.A. Water Use and PopulationPopulation

0

100,000

200,000

300,000

400,000

500,000

600,000

700,000

800,000

900,000

1,000,000

70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 00 02 04 06 08 10

Fiscal Year Ending June 30

Acr

e-F

eet

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Po

pu

lati

on

x 1

,000

,000

Since 1970 to present, L.A.’s population has grown by 1.28 million people

Water Use

Population

117 gallons/person/day

Thank You.Thank You.

Questions?Questions?