Performance payments for individual enrolled customers are calculated at the service agreement level by multiplying interruptible load for reliability (ILR) by $2/kWh. The ILR is the load reduction achieved during an ELRP event incremental to the non-event applicable baseline and any other existing commitment.
The ELRP baseline for individual enrolled non-residential customers is calculated using the following method:
Calculate the Customer Specific Energy Baseline (CSEB) – A Customer service account must have at least 10 similar days of interval meter data available in SDG&E’s billing system to have a valid CSEB. Only the hourly average usage for the hours included in the event will be included in the CSEB determination. The CSEB and Adjusted CSEB (ACSEB) will all be calculated at the service account level. If the ELRP event occurs on a non-holiday weekday the CSEB will be calculated on an hourly basis using the average of the ten (10) preceding similar non-holiday weekdays If the ELRP event occurs on a weekend or holiday the CSEB and will be calculated on an hourly basis using the average of the four (4) preceding similar weekend or holiday days.
Calculate the Day-Of Adjustment (DOA) – A DOA shall not be less than 1.00 or greater than 1.40. The DOA is a ratio of (a) the average load of the first three hours of the four hours prior to the ELRP Event to (b) the average load of the same hours from the similar days used to calculate the CSEB in step 1 above. If either a or b are negative the DOA is equal to 1.
Calculate the Adjusted Customer Specific Energy Baseline (ACSEB) – An account’s ACSEB for an ELRP event hour is calculated by multiplying the CSEB by the DOA. If the CSEB is negative, then the ACSEB is set equal to the CSEB.