Oncor Electric Delivery

Oncor HAN Functionality

AMIT Meeting, April 6, 2010

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HAN Functionality

• The Oncor Network and meter supports all ZigBee Smart Energy v1.0 functionality

Provision/DeProvision

Messaging –supports 50 characters today; planned to support 80 characters by summer, 2010

Load control: direct and through thermostat adjustment

Pricing

– Current Price, Next or Future Price, and Pricing Event available for Non-TOU meters

– TOU with 5 Pricing Tiers

• Oncor is currently conducting end to end interoperability testing through the SMT on multiple HAN devices

7 devices from 5 different manufacturers have passed all tests, multiple additional devices are in test mode (IHDs, PCTs, LCSs, & Gateways)

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Oncor HAN Testing Matrix

• SEP v1.0 Certified – required

• Production Security Certificates - required

• Passed L+G interoperability testing - desired, not required

• REP SMT GUI

Provisioning

DeProvisioning

• REP SMT API

Provisioning

Send Load Control Message

Send Cancel Load Control Events

Send Cancel ALL Load Control Events

Send Text Message

Send Cancel Text Message

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Oncor HAN Testing Matrix• REP SMT API (continued)

Send Current Price

Send Next Price

Send Price Event

Send Tiered Pricing, Tier 1-5 supported

DeProvisioning

• TDSP GUI

Provisioning

DeProvisioning

• Internal AMS Portal (Oncor support)

Provisioning

DeProvisioning

Preformatted Simple Text Message

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Oncor HAN Testing Scorecard

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Smart Energy Profile v1.0 Pricing Functions

• Current Price – Sets base price in the HAN device.

• Next Price – Allows base price to be changed with Start Time in the future.

• Price Event – Used to allow a temporary change in price (i.e.. Critical Peak Price). A Price Event supersedes all other prices while active and can cut across pricing tiers.

• Tiered Pricing – 5 pricing tiers supported, each with its own Current Price, Next Price and Price Event with start time and duration. Pricing tiers match the TOU Rate schedule and must be set up and programmed into the meters.

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QUESTIONS?

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Appendix

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Current Price for a Non-TOU Meter

Current Price Next PriceStart Time 1/1/10 12:00 AMDuration until changedPrice $0.13/kWh

Normal pricesPrice Event

Configuration of current price.

Beginning on January 1, 2010 12:00 AM the price is $0.13/kWh and will remain in effect until changed.

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Change Current Price for a Non-TOU Meter

Current Price Next Price Price EventStart Time 1/1/10 12:00 AM 6/1/10 12:00 AMDuration until changed until changedPrice $0.13/kWh $0.15/kWh

Normal prices

• Configuration of next price.

• Between January 1, 2010 and June 1, 2010 the price is $0.13/kWh

• Price converts from $0.13/kWh to $0.15/kWh June 1, 2010 at 12:00 AM

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Current Price for a Non-TOU Meter

Current Price Next PriceStart Time 6/1/10 12:00 AMDuration until changedPrice $0.15/kWh

Normal pricesPrice Event

On June 1, 2010 at midnight the next price ($0.15/kWh) becomes effective and will remain in effect until changed.

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Non-TOU Meter

Current Price Next Price Price EventStart Time 6/1/10 12:00 AM 1/1/11 12:00 AMDuration until changed until changedPrice $0.15/kWh $0.17/kWh

Normal prices

The next price position is now available and can be populated.

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Price Event for a Non-TOU Meter

• A temporary deviation from the normal price (price event) can be scheduled for any time.• On July 10, 2010 from 3:00-6:59 PM the price will be $0.20/kWh.• On July 10, 2010 at 7:00 PM the price will return to $0.15/kWh.

Current Price Next Price Price EventStart Time 6/1/10 12:00 AM 1/1/11 12:00 AM 7/10/10 3:00 PMDuration until changed until changed 3 hrs, 59 minPrice $0.15/kWh $0.17/kWh $0.20/kWh

Normal pricesM

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Tiered Pricing

Support for 5 Pricing Tiers

• Current price - Sets base price in HAN device

Start time (immediate)

Duration (until changed)

• Next Price - Allows base price to be changed with Start Time in the future.

Start Time (now or in the future)

Duration (until changed)

• Price event - Used to allow temporary change in price (i.e.. Critical Peak Price)

Start Time (now or in the future)

Duration

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Pricing Tiers – Current Price Example

Current Price Next Price Price EventStart Time 6/1/10 12:00 AMDuration until changedRateA/Tier1 $0.11/kWh

(7 PM to 7 AM)RateB/Tier2 $0.12/kWh

(7 AM to 10 AM)RateC/Tier3 $0.13/kWh

(10 AM to 3 PM)RateD/Tier4 $0.14/kWh

(3 PM to 5 PM)RateE/Tier5 $0.15/kWh

(5 PM to 7 PM)

Normal prices

• The Current Price takes effect at midnight June 1, 2010 and

remains in effect until changed.

• Each associated tiers have their own start time and duration

based on the TOU schedule programmed in the meter. The

TOU programmed switchpoints trigger these tiered event times.

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Pricing Tiers – Current Price Example

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Tier 1 Tier 1

Tier 2

Tier 3

Tier 4Tier 5

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Pricing Tiers w/Price Event

Current Price Next Price Price EventStart Time 6/1/10 12:00 AM 7/25/10 4:00 PMDuration until changed 180 minutesRateA/Tier1 $0.11/kWh

(7 PM to 7 AM)RateB/Tier2 $0.12/kWh

(7 AM to 10 AM)RateC/Tier3 $0.13/kWh

(10 AM to 3 PM)RateD/Tier4 $0.14/kWh

(3 PM to 5 PM)$0.18/kWh

(4 PM to 5 PM)RateE/Tier5 $0.15/kWh

(5 PM to 7 PM)$0.18/kWh

(5 PM to 7 PM)

Normal prices

• A Pricing event have been added to Tiers 4 and 5 with its own specific start time and duration

• A temporary deviation from the normal price (price event) can be scheduled for any time.

• Price Events supersede all normal prices and tiers

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Pricing Tiers w/Price Event

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Price Event

Tier 1Tier 2

Tier 3Tier 4

Tier 1

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Pricing Tiers – Next Price

Current Price Next Price Price EventStart Time 6/1/10 12:00 AM 11/1/10 12:00 AMDuration until changed until changedRateA/Tier1 $0.11/kWh

(7 PM to 7 AM)$0.10/kWh

RateB/Tier2 $0.12/kWh (7 AM to 10 AM)

$0.14/kWh

RateC/Tier3 $0.13/kWh (10 AM to 3 PM)

$0.12/kwh

RateD/Tier4 $0.14/kWh (3 PM to 5 AM)

$0.12/kwh

RateE/Tier5 $0.15/kWh (5 PM to 7 PM)

$0.12/kwh

Normal prices

• The Next Price feature allows pricing tier changes to occur automatically on a predetermined schedule.

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Pricing Tiers – Next Price

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Tier 1

Tier 2

Tiers 3-5

Tier 1

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Key Points of Pricing

• Backhaul network traffic is minimal in scenario where prices will change infrequently.

• Price events minimize network management tasks and bandwidth usage by allowing a single communication to occur with meter to invoke temporary price changes…restore to current price is automatically accomplished.

• With TOU, price events can span multiple TOU periods with minimal backhaul traffic.

• Recurring daily changes in price can be set up as TOU schedule switch points thus better ensuring delivery of price information even with backhaul network abnormalities.