Transitional Bundled Service Electric Commodity Prices(TBCC)

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These prices apply to Direct Access customers who: (1) elect Transitional Bundled Service (TBS) as prescribed in Rule 22.1 (Direct Access Service Switching Exemption Rules) or (2) take Bundled Service prior to the end of the mandatory six-month notice period required to elect Bundled Service as prescribed in Rule 22.1, and will be used to calculate the customer's Transitional Bundled Commodity Cost (TBCC) charge. (See Schedule TBCC - Transitional Bundled Commodity Cost for a detailed description of price calculations.)

1) Development of Hourly TBCC Prices
The hourly market price (at the transmission / distribution interface) shall consist of the straight average of the six 10-minute CAISO Ex Post Incremental prices for North of Path 15 (Avg NP15), multiplied by an allowance for Unaccounted for Energy (UFE), plus an allowance for Ancillary Services (AS) and the ISO Grid Management Charges (GMC).

MP _{day n, hr} = Avg NP15 _{day n, hr} * UFE + AS _{day n, hr} + GMC

Hourly TBCC prices applicable to customers served at each voltage level are then equal to the hourly market price determined above, multiplied by the appropriate distribution loss factor (DLF) and a factor for franchise fees and uncollectibles (FFU).

TBCC _{day n, hr} = MP _{day n, hr} * DLF * FFU
 

2) Development of Average TBCC Prices
Average prices for each schedule (or TOU period) are developed through the use of a statistical load profile which represents the average load profile for all customers (both Direct Access and Bundled Service) on a given rate schedule.

The sum of the products of the: (1) hourly TBCC prices, and (2) the hourly loads, divided by the use associated with the statistical load profile (expressed as a fraction of the profile period use allocated to each hour) will yield an average price for a specific customer group and TOU period. These average prices are updated weekly.

To find the prices used on a particular bill:
Click the most recent effective date on the list below which is less than or equal to the Bill To date of the bill. Then follow the instructions on the page which will appear.

Effective Date 05/08/08
Effective Date 05/01/08
Effective Date 04/24/08
Effective Date 04/17/08
Effective Date 04/10/08
Effective Date 04/03/08
Effective Date 03/27/08
Effective Date 03/20/08
Effective Date 03/13/08
Effective Date 03/06/08
Effective Date 02/28/08
Effective Date 02/21/08
Effective Date 02/14/08
Effective Date 02/07/08
Effective Date 01/31/08
Effective Date 01/24/08
Effective Date 01/17/08
Effective Date 01/10/08
Effective Date 01/03/08
Effective Date 12/27/07
Effective Date 12/20/07
Effective Date 12/13/07
Effective Date 12/06/07
Effective Date 11/29/07
Effective Date 11/22/07
Effective Date 11/15/07
Effective Date 11/08/07
Effective Date 11/01/07
Effective Date 10/25/07
Effective Date 10/18/07
Effective Date 10/11/07
Effective Date 10/04/07
Effective Date 09/27/07
Effective Date 09/20/07
Effective Date 09/13/07
Effective Date 09/06/07
Effective Date 08/30/07
Effective Date 08/23/07
Effective Date 08/16/07
Effective Date 08/09/07
Effective Date 08/02/07
Effective Date 07/26/07
Effective Date 07/19/07
Effective Date 07/12/07
Effective Date 07/05/07
Effective Date 06/28/07
Effective Date 06/21/07
Effective Date 06/14/07
Effective Date 06/07/07
Effective Date 05/31/07
Effective Date 05/24/07
Effective Date 05/17/07
Effective Date 05/10/07
Effective Date 05/03/07
Effective Date 04/26/07
Effective Date 04/19/07
Effective Date 04/12/07
Effective Date 04/05/07