From: MIKE JASKE, CEC Sent: Friday, January 17, 1997 Subject: Scope of Meeting for 1/22 Here are some items that help define the issues that we should be discussing at the 1/22 meeting on settlement cost identification and allocation to customers. The CEC might be willing to present some initial information forum our assessment of the load research data on the issue of multiplicity of load shapes present in residential populations. Here is my list: 1. How are UDC load bids to the PX to be computed? What is the methodology for developing these load bids? How do these loads bids adapt through time to the progression of customers into direct access status? What is the planned methodology for adaptively responding to errors in one day's load bids in making load bids for a subsequent day? 2. What is the basis for allocating overall ISO energy imbalances at the zonal level to UDC customers' load forecast errors, direct access load profile customer errors, changes in losses from standard loss factors, theft and other sources of error at the system level? What are the steps from initial allocation to various iterations of reallocation among the PX (various UDCs) and scheduling coordinators? 3. What steps are being taken to ensure that imbalance costs estimation practices do not violate the CTC firewall requirements of AB 1890? 4. How are the various fixed and variable costs of UDC bidding into the PX, specialized metering and load forecasting techniques to support these loads bids, practices and personnel devoted to energy imbalance identification and "fights" with scheduling coordinators determined? Where have these costs been classified in the rate applications filed 12/6/96? Where should these costs be classified to ensure a "fair" comparison with direct access provider generation costs? 5. What are the size of errors resulting from preliminary WEPEX decisions to not install and use ISO grid out take point meters at all out take points rather than zones as the basis for energy imbalance settlements? What are the costs of installing these meters and using the data on a comprehensive basis? How do the errors in the allocation of energy imbalance and other costs compare to these metering investment and operating costs? 6. What are the costs of using the existing ISO grid metering capability in a partial coverage of all ISO grid out take points? What are the capabilities of these meters, and what incremental investment and operating costs would be required to make use of the data in ISO energy imbalance settlements? How do the locations of these existing meters correlate with customers likely to participate in direct access, e.g. substations and transmission line takeoffs that largely serve industrial customers? 7. What are the expected regulatory oversight procedures needed to ensure fair allocation of energy imbalance costs to UDC customers, to various UDC customer classes, given the uncertainties implicit in the settlement methods proposed in the utility 12/6/96 rate applications? What opportunities are likely to be used by intervenors to press their case for alternative allocation methods?