Transitional Bundled Service Electric Commodity Prices(TBCC)

These prices apply to Direct Access customers, as well as CCA 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) Current and Historic Development of Hourly TBCC Prices

(i) 7/1/2012 - Present (D.11-12-018 and Resolution E-4475)
The hourly market price (at the transmission / distribution interface) shall consist of the CAISO hourly Integrated Forward Market (IFM) Locational Marginal Price (LMP) for the PGE Utility Distribution Company (UDC) control area (LAP_PGAE), 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} = IFM LMP _{LAP PGAE, day n,
hr} * UFE + AS _{day n, hr} + GMC

The revised hourly market price (Revised MP) will equal the sum of the Hourly Market Price, the Renewable Portfolio Standard (RPS) adder and the Capacity adder (CAP ADDER).

Revised MP_{day n, hr} = MP _{day n, hr} + RPS adder + CAP adder

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

TBCC _{day n, hr} = Revised MP_{day n,
hr} * DLF * RFU

(ii) 4/1/2009 - 6/30/2012 (MRTU implementation)
The hourly market price (at the transmission / distribution interface) shall consist of the CAISO hourly Integrated Forward Market (IFM) Locational Marginal Price (LMP) for the PGE Utility Distribution Company (UDC) control Area (LAP_PGAE), 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} = IFM LMP _{LAP PGAE, 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 revenue fees and uncollectibles (RFU).

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

(iii) Prior to 4/1/09
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 revenue fees and uncollectibles (RFU).

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

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.