I 
119TH CONGRESS 
1ST SESSION H. R. 6633 
To establish a best-available transmission conductor standard for certain 
transmission projects under the Federal Power Act and to provide for 
presumptions regarding cost recovery for such conductors. 
IN THE HOUSE OF REPRESENTATIVES 
DECEMBER 11, 2025 
Mrs. FEDORCHAK introduced the following bill; which was referred to the 
Committee on Energy and Commerce 
A BILL 
To establish a best-available transmission conductor standard 
for certain transmission projects under the Federal 
Power Act and to provide for presumptions regarding 
cost recovery for such conductors. 
Be it enacted by the Senate and House of Representa-
tives of the United States of America in Congress assembled, 
SECTION 1. SHORT TITLE. 
This Act may be cited as the ‘‘High-Capacity Grid 
Act’’. 
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SEC. 
2. 
BEST-AVAILABLE 
TRANSMISSION 
CONDUCTOR 
STANDARD. 
Section 205 of the Federal Power Act (16 U.S.C. 
824d) is amended by adding at the end the following: 
‘‘(h) BEST-AVAILABLE TRANSMISSION CONDUCTOR 
STANDARD.— 
‘‘(1) DEFINITIONS.—In this subsection: 
‘‘(A) 
BEST-AVAILABLE
TRANSMISSION 
CONDUCTOR.—The term ‘best-available trans-
mission conductor’ means a transmission con-
ductor that, as determined by the Commission 
by rule under paragraph (5)— 
‘‘(i) provides the greatest feasible and 
commercially available energy-carrying ca-
pacity at a given voltage level; 
‘‘(ii) provides the highest feasible and 
commercially available electrical efficiency 
at that voltage level; and 
‘‘(iii) mitigates thermal sag at the 
maximum rated transmission-carrying ca-
pacity of the facility. 
‘‘(B) COVERED PROJECT.—The term ‘cov-
ered project’ means— 
‘‘(i) the construction of a new trans-
mission facility subject to the jurisdiction 
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of the Commission under section 201(b); 
and 
‘‘(ii) any modification, upgrade, re-
placement, or reconductoring of an existing 
transmission line subject to such jurisdic-
tion. 
‘‘(2) PRESUMPTION OF PRUDENCE FOR BEST- 
AVAILABLE
TRANSMISSION
CONDUCTORS.—In any 
filing seeking to recover the cost of a transmission 
conductor for a covered project, and in any pro-
ceeding to determine whether such cost may be re-
covered through rates, the Commission shall pre-
sume that the use of a best-available transmission 
conductor is a prudent practice and that the associ-
ated costs are just and reasonable. 
‘‘(3) PRESUMPTION
AGAINST
RECOVERY
OF 
COSTS FOR NON-BEST-AVAILABLE CONDUCTORS.—In 
any filing seeking to recover the cost of a trans-
mission conductor for a covered project, and in any 
proceeding to determine whether such cost may be 
recovered through rates, the Commission shall pre-
sume that the use of a transmission conductor that 
is not a best-available transmission conductor is not 
prudent and that the associated costs are not just 
and reasonable. 
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‘‘(4) APPLICABILITY.—The requirements of this 
subsection apply only to public utilities and only 
with respect to covered projects that are subject to 
the jurisdiction of the Commission under section 
201(b). 
‘‘(5) RULEMAKING.—Not later than 180 days 
after the date of enactment of this subsection, the 
Commission shall promulgate regulations to imple-
ment this subsection. In promulgating such regula-
tions, the Commission shall— 
‘‘(A) establish a methodology for deter-
mining whether a transmission conductor is a 
best-available transmission conductor for pur-
poses of this subsection; 
‘‘(B) ensure that such methodology is con-
sistent with the criteria set forth in paragraph 
(1)(A); and 
‘‘(C) provide for periodic review and updat-
ing of the methodology to reflect improvements 
in technology, materials, and system perform-
ance.’’. 
Æ 
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