Demand Response Task Force

February 2008 Update

Bridge Solution

Short Term Only:• Use as “bridge” to long term solution

Standardize Energy Impacts:• Utilize “deemed” impacts

Standardize Payments:• Participating CRs get a credit for that day

based on “deemed” impacts

Bridge Solution (cont.) Limited Program Participation:

• 10000 ESIIDs per participating CR

• Total Market Load limit of 100 MW

Limited Number of Events:• CRs limited to calling 1 DR Day per month

• Only 1 DR Day per week

Registration & Verification:• Participating CRs file attestations with ERCOT

Programs & Deemed Impacts

Program #

Program DescriptionDeemed Load Reduction

1 Residential, Single Family, AC, 33% Cycling* 1.0 kW

2Residential, Single Family, Pool Pump, 100% Cycling

0.33 kW

3 Residential, Multifamily, AC, 33% Cycling 0.65 kW

4Residential, Single Family, Electric Water Heater, 100% Cycling

0.35 kW

Process Overview

Step 1: CR calls ERCOT Client Relations to initiate DR Day• Must call by 4:00 PM the day before

Step 2: ERCOT notices the market via ERCOT. com and email• A new distribution list will be created

Step 3: CRs conduct DR events on DR day

Process Overview

Step 4: CRs provide ERCOT with lists of participating ESI IDS via MarkeTrak• Includes DUNS, ESI IDs, Program ID and

Intervals load was curtailed

Step 5: ERCOT validates list of ESI IDs to verify Rep of Record• Communicates discrepancies via MarkeTrak

Process Overview

Step 6: ERCOT calculates preliminary Deem Load Reduction• Provides spreadsheets to participating CRs

Step 7: ERCOT performs calculations during Final settlements process

Next Steps for Demand Response

Short Term Solution• COPGMRR filed as urgent and up for vote

this month

• PRR will be filed as urgent after COPS and RMS review

Interim Solution• PUCT Staff has asked that the Advanced

Metering Implementation Team be allowed to address