Oncor’s Advanced Meter System (AMS)

Enabling Demand Response for Retail Electric Providers in Texas

Mark Carpenter

June 24, 2010

22

~ 630 miles

~ 390 miles

• 27,000 square miles of territory

• 3.1 million meters

• 87 customers (Retail Electric Providers –REPs)

Oncor’s AMS Profile

• AMS Deployment 2008 – 2012

• 3.4 million AMS meters by 2012

• Current count is more than 1,000,000 AMS meters

33

Stages of Demand Response Enablement

Relative Costs

Ben

efit

Provide 15 minute

usage data (day after

basis)

Provide direct usage

data between the meter and premise

Provide the REPs direct interaction with customer’s

Home Area Network (HAN)

devices Smart Appliances

Thermostats

Lighting Controls

In-home Display

44

REPs’ AMS HAN Capability

Provide the REPs direct interaction with customer’s

Home Area Network (HAN)

devices Smart Appliances

Thermostats

Lighting Controls

In-home Display

Text messaging

Load control:

direct;

through thermostat adjustment.

Pricing

Current Price;

Next or Future Price;

Pricing Event;

Time of Use (TOU) with 5 Pricing Tiers.

Smart Meter Texas Portal

Wires Co.

Via ZigBee Smart Energy Profile (SEP) 1.0

55

Advanced Metering System (Market Perspective)

Consumer

Retail Electric Provider

ERCOT

Regulated Electric Utility (Wires Co.)

SMART METER TEXAS

Host

Market Transactions

( Monthly Meter Readings and Daily 15 Minute VEE Data )

Market / Daily 15 Minute Settlement

Transactions

Meter / HAN Services

( Daily 15 Minute Meter Data)

Optional Path

for Retail

Electric

Provider

HAN Services

Historic Daily 15 Minute VEE Meter Data and limited Meter / HAN

Services

Meter / HAN Services (thru Oncor system) and future path for Daily 15 Minute VEE Meter Data

Daily 15 Minute Meter Data and Meter / HAN Transactions Over Utility Infrastructure

5

Daily 15 Minute VEE Meter Data

666

Smart Meter Texas Portal

777

API

Wires Company’s

Sep

arat

e G

UIs

NOTE:

GUI - Graphical User Interface

API - Application Programming Interface

HAN - Home Area Network

Historic 15 minute interval usage data

HAN device provisioning

Historic 15 minute interval usage data

HAN device provisioning

Historic 15 minute interval usage data

HAN device provisioning

HAN messaging

Historic 15 minute interval usage data

HAN device provisioning

HAN messaging

Smart Meter Texas Portal

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Now to Hear from a Retail Electric Provider