Columbia Gas Transmission LLC
Third Revised Volume No. 1
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Effective Date: 03/03/2009, Docket: RP09-340-000, Status: Effective
Original Sheet No. 396 Original Sheet No. 396
GENERAL TERMS AND CONDITIONS (Cont'd)
45. ELECTRIC POWER COSTS ADJUSTMENT (EPCA)
45.1 Purpose. This Section provides for the recovery of electric power costs incurred by Transporter for
compression or processing of natural gas and for company use and operations (Electric Power Costs). Transporter
shall recover Electric Power Costs, including carrying charges calculated under Section 154.501 or successor
provision of the Commission's regulations, by means of a Transportation EPCA Rate, an LNG EPCA Rate and a
Processing EPCA Rate, each of which shall be comprised of a Current EPCA Rate and an EPCA Surcharge as
calculated in Section 45.4 below (hereinafter generally referred to as the "EPCA Rates"). The Transportation
EPCA Rate shall be applicable to Shippers under (i) Transporter's FTS, NTS, NTS-S, TPS, SST, GTS, OPT, and ITS
Rate Schedules as set forth in Volume No. 1 of this Tariff, and (ii) Rate Schedule X-124 and those X-Rate
Schedules set forth in Volume No. 2 of this Tariff that incorporate rates from Volume No. 1 of this Tariff
(collectively the Applicable Rate Schedules). The LNG EPCA Rate shall be applicable to Shippers under
Transporter's Rate Schedules X-131, X-132 and X-133. The Processing EPCA Rate shall be applicable to those
receiving processing services from Transporter. The EPCA Rates for recovery of Transporter's Electric Power
Costs are set forth at Sheet Nos. 25 through 30 and 31, inclusive, of this Tariff, which may be adjusted by
Transporter in subsequent Section 4(e) rate filings. Recovery of adjustments in such filings to the EPCA Rates
for the current period, and unrecovered amounts from preceding periods, shall be effected through the mechanism
set forth in this section.
45.2 Transporter's EPCA Filings. Annually, or at such other times as Transporter in its reasonable
discretion determines necessary, Transporter may adjust any of the EPCA Rates to take into account both
prospective changes in Electric Power Costs and unrecovered Electric Power Costs from the preceding period as
described at Section 45.4 below. That adjustment shall be effected by Transporter filing an Electric Power
Costs Adjustment (EPCA), with the Commission (i) annually on or before March 1 to become effective April 1
(Annual EPCA Filing), and (ii) at such other times as Transporter in its reasonable discretion determines
neccesary to become effective 30 days after filing (Periodic EPCA Filing).
45.3 Accounting for Activity. Transporter will account for all under or over recovered Electric Power Costs
for the three EPCA Rates in Account No. 186.
45.4 Adjustments to Electric Power Costs Recovery. Transporter's Electric Power Costs recovery through each
of its three EPCA Rates (Transportation, LNG or Processing), as adjusted by Transporter through its EPCA
filings, shall include the following components: (i) the current component of Transporter's Electric Power
Costs recovery for that particular EPCA Rate (the Current EPCA Rate), and (ii) the unrecovered component of
Transporter's Electric Power Costs recovery from the preceding period for that particular EPCA Rate (the EPCA
Surcharge). The Current EPCA Rate and the EPCA Surcharge for each of the three EPCA Rates shall be calculated
separately for EPCA filings in the following manner:
(a) Current EPCA Rate. In each Annual or Periodic EPCA Filing, Transporter shall calculate, and
allocate to the applicable Rate Schedules or services covered by that particular EPCA Rate on an as-billed basis
and in a manner consistent with Transporter's currently effective cost allocation and rate design, the Current
EPCA Rate by: (i) estimating the total Electric Power Costs for the 12-month period commencing with the
effective date of that EPCA Filing associated with the Rate Schedules or services covered by the particular EPCA
Rate, and (ii) dividing that amount by the applicable rate design determinants under all of the applicable Rate
Schedules or services covered by that particular EPCA Rate for that same 12-month period. The following is an
example of the calculation of the LNG Current EPCA Rate and the numbers are for illustrative purposes only:
Total Demand Capacity
Projected LNG Electric Power Costs $692,000 $ 138,400 $ 553,600
Projected Determinants 1,440,000 14,426,400
LNG Current EPCA Rate $0.100 $.038