Texas Administrative Code

Texas Administrative Code

TITLE 16	ECONOMIC REGULATION
PART 2	PUBLIC UTILITY COMMISSION OF TEXAS
CHAPTER 25	SUBSTANTIVE RULES APPLICABLE TO ELECTRIC SERVICE PROVIDERS
SUBCHAPTER O	UNBUNDLING AND MARKET POWER
DIVISION 1	UNBUNDLING
RULE §25.344	Cost Separation Proceedings

(E) Decommissioning costs. Costs associated with nuclear decommissioning obligations shall be allocated based on the methodology used in the last cost of service study unless otherwise approved by the commission. Total costs shall be reported in the unbundled cost of service studies as a separate line item (or subaccount) in each account where such costs occur.

(h) Determination of ERCOT and Non-ERCOT transmission costs.

(1) ERCOT transmission costs.

(A) The transmission cost of service for an electric utility in ERCOT shall be as described in §25.192(b) of this title (relating to Transmission Service Rates).

(B) The UCOS-RFP adopted by the commission for the cost separation filings shall be used by the electric utilities filing under this section.

(C) Any redirection of transmission depreciation expense to production by an electric utility in ERCOT pursuant to PURA §39.256 should not affect the utility's wholesale transmission cost of service that is used for determining the ERCOT postage stamp rate.

(2) Non-ERCOT transmission costs. For an electric utility in Texas operating outside ERCOT, the utility's open access transmission tariff approved by FERC will be used to determine the utility's transmission cost and rates in Texas.

(i) Rate design. Utilities shall consolidate existing rate classes into the minimum number of classes needed to recognize differences in usage of the transmission and distribution systems. Class consolidation shall not materially disadvantage any customer class.

Source Note: The provisions of this §25.344 adopted to be effective February 9, 2000, 25 TexReg 720; amended to be effective May 13, 2018, 43 TexReg 3001