4 versions

CosmeticWhat changed in REFERRED IN SENATEcompared with REPORTED IN HOUSE (Sep 14, 2026)

Technical corrections only. The differences between v2 and v4 are limited to the legislative status information, reflecting the bill's progression from being reported in the House to being referred in the Senate. The substantive text of the "High-Capacity Grid Act" remains unchanged.

Skipping v3 (ENGROSSED IN HOUSE). Those versions changed too little to need their own analysis, so they reuse REPORTED IN HOUSE's. Changes are measured from the most recent version analyzed on its own.

H.R. 6633119th CongressIntroduced Dec 11, 2025

High-Capacity Grid Act

Passed HouseEnergyMajor

View bill text

Sponsor: Rep. Fedorchak, Julie [R-ND-At Large]
Committees: Energy and Commerce Committee (primary)
Last action: Sep 16, 2026

This analysis was written for v2 (REPORTED IN HOUSE, Sep 14, 2026). REFERRED IN SENATE changed too little to need its own, so it reuses that one rather than a rewrite. The differences between the two are summarized above. View v2

Bottom line

This bill aims to modernize the nation's electricity grid by requiring the use of advanced, high-capacity, and efficient transmission conductors, potentially increasing grid capacity and reliability but also raising questions about implementation costs and regulatory flexibility.

What it actually does

H.R. 6633, the "High-Capacity Grid Act," mandates that public utilities use "best-available transmission conductors" for new or majorly modified transmission projects under the Federal Power Act. It directs the Federal Energy Regulatory Commission (FERC), in consultation with the Secretary of Energy, to establish a methodology for defining and designating these conductors based on energy-carrying capacity, electrical efficiency, and mechanical performance. The bill also outlines specific exemptions for emergency repairs, safety, reliability, and cases where using such conductors would significantly increase costs without commensurate benefits.

Proponents argue

Supporters argue this bill is crucial for upgrading aging grid infrastructure, enhancing energy efficiency, reducing transmission losses, and improving grid resilience against outages and extreme weather. They contend that mandating best-available technology will lead to long-term cost savings, facilitate the integration of diverse energy sources, and ensure a more robust and reliable power supply for consumers.

Opponents contend

Critics might argue that mandating specific technologies could stifle innovation, increase upfront project costs, and create regulatory burdens for utilities. They may also contend that the exemptions provided are insufficient to address practical challenges or that the definition of "best-available" could become outdated quickly, leading to unnecessary expenses without clear benefits in all circumstances.

The bill is concise and can be read quickly, allowing ample time for stakeholders to understand its core provisions and implications.

Section 2, inserting new Section 224(a) into the Federal Power Act

Requirement to Use Best-Available Transmission Conductors

prominently featuredstraightforward

This provision requires the Federal Energy Regulatory Commission (FERC) to ensure that public utilities, when undertaking certain transmission projects, use conductors that are designated as part of the "best-available transmission conductor class." This applies to how FERC exercises its authority over rates and charges for transmission services.

GroupImpactMechanismScale

GroupPublic UtilitiesImpactIncreased regulatory compliance burden, potential for higher capital expenditures on transmission projects.MechanismScale

GroupElectricity ConsumersImpactPotential for improved grid reliability and efficiency, but also potential for higher electricity rates if increased costs are passed through.MechanismScale

Supporters argue

Supporters argue this mandate is essential for modernizing the grid, improving energy efficiency, and enhancing reliability by ensuring new projects utilize the most advanced technology available.

Critics contend

Critics may argue that such a broad mandate could lead to increased project costs, which would ultimately be borne by consumers, and might not be optimal for all project types or geographical locations.

Tradeoffs

Balances the desire for grid modernization and efficiency with concerns about cost increases and regulatory flexibility for utilities.

Section 2, inserting new Section 224(b)(2)(A) into the Federal Power Act

Establishment of Methodology for Best-Available Conductors

prominently featuredmoderately complex

FERC is directed to establish a methodology, in consultation with the Secretary of Energy, to designate transmission conductors as "best-available." This methodology must consider three key criteria: greatest feasible and commercially available energy-carrying capacity, highest feasible and commercially available electrical efficiency, and greatest feasible and commercially available mechanical performance (including reliability, safety, and affordability).

Section 2, inserting new Section 224(b)(2)(D) into the Federal Power Act

Conditions for Exemption from Best-Available Conductor Use

mentioned in summarymoderately complex

The bill provides several exemptions where the "best-available" requirement would not apply. These include projects for which permits were filed or conductors procured before the bill's enactment, emergency repairs, situations where use would negatively impact safety or violate reliability standards, or if such use would significantly increase cost per kilowatt-hour without a material and commensurate increase in capacity, efficiency, or mechanical performance.

Section 2, inserting new Section 224(c) into the Federal Power Act

Periodic Review and Updates

mentioned in summarystraightforward

FERC is authorized to periodically review and update both the methodology for designating "best-available" conductors and the actual designations themselves, to reflect improvements in technology.

FOUND

Defines "covered project" to include "any major (as determined by the Commission) modification, upgrade, replacement, or reconductoring of an existing transmission conductor."

Section 2, inserting new Section 224(d)(3)(B) into the Federal Power Act

Why it matters:It is standard legislative practice to define terms within a dedicated section, but the discretion granted to FERC here is significant and could easily be missed.

Case for: Supporters would argue this flexibility allows FERC to apply the standard judiciously, focusing on projects with the greatest impact while avoiding unnecessary burdens on minor maintenance.

Case against: Critics might contend that the term "major" is vague and could lead to inconsistent application or allow utilities to avoid the standard on significant projects by classifying them as "minor."

Estimated impact: Could significantly influence the total volume of existing grid infrastructure that falls under the new standard, impacting overall grid modernization pace and cost.

About this analysis. AI-Generated from the official bill text and available committee reports. Gaps in available data are noted explicitly. Verify important details with the official Congress.gov record.