High-Capacity Grid Act

Summary#

This bill, the High-Capacity Grid Act, would require the Federal Energy Regulatory Commission (FERC) to set a “best-available transmission conductor” standard and to apply presumptions about which conductor costs may be recovered in rates. The bill says utilities building or upgrading interstate transmission lines should use conductors that give the most capacity, the best electrical efficiency, and reduce thermal sag, as defined by FERC rules. FERC must issue rules to define the test within 180 days and review the test periodically.

• Main change: FERC must adopt a rule that defines “best-available transmission conductor” and use a legal presumption that using such conductors is a prudent (acceptable) choice for cost recovery. Using a non‑best conductor would be presumed imprudent for rate recovery.
• Who it covers: Only public utilities and only transmission projects subject to FERC jurisdiction under federal law.
• What FERC must do: Create a methodology consistent with the bill’s three criteria, and update that methodology over time to reflect technology changes.
• Goal: Encourage use of higher-capacity, more efficient conductors on federally regulated transmission projects.

What it means for you#

• Public utilities (subject to FERC):

  • Utilities would generally be expected to install conductors that meet FERC’s “best-available” test when building new lines or upgrading existing federally regulated lines if they want a presumption that those conductor costs are recoverable in rates.
  • If a utility uses a conductor that does not meet the test, the utility could face a presumption that those conductor costs are not recoverable from customers.

• Ratepayers (electric customers served under FERC-jurisdictional rates):

  • Customers could see changes in what transmission costs are included in their rates. This could mean higher bills if best-available conductors cost more and utilities recover the cost, or lower future costs if higher-efficiency conductors reduce losses. The bill itself does not say which will happen.

• Transmission project contractors and conductor manufacturers:

  • Demand for conductors that meet the new standard could increase. Manufacturers of advanced conductors may gain business if the standard favors newer technologies.

• FERC (the Commission):

  • Must write rules within 180 days defining the methodology and must periodically review and update the rules.

• State or local utilities and projects not under federal jurisdiction:

  • The bill does not apply to projects that are not subject to FERC jurisdiction. Those entities are not covered by the bill’s presumption rules.

Expenses#

No publicly available information.

• The bill text does not include a fiscal note or cost estimate.
• Possible public costs (not provided in the bill) could include FERC staff time and rulemaking costs to create and update the methodology.
• Possible private costs (not estimated in the bill) could include higher capital costs for utilities if best-available conductors are more expensive, and potential compliance or procurement costs for manufacturers and contractors.
• Possible savings (not estimated) could come from reduced transmission losses or deferred need for additional lines if higher-capacity conductors improve system performance.

Proponents' View#

• The bill appears intended to encourage adoption of higher-capacity and more efficient transmission conductors on federally regulated projects.
• Supporters may argue that a legal presumption in favor of best-available conductors reduces uncertainty for utilities seeking cost recovery, making investment decisions easier.
• The bill could be seen as promoting grid performance goals: more capacity at a given voltage, better electrical efficiency, and reduced thermal sag during peak loads.
• Requiring periodic review could help the standard keep pace with technological improvements.

Opponents' View#

• One concern is that the bill creates a strong presumption that may shift the cost risk onto ratepayers if best-available conductors are significantly more expensive and utilities recover those costs.
• The bill does not give cost or economic criteria for choosing conductors, so it may not require a comparison of long-term cost-effectiveness versus short-term capital cost.
• It is unclear how FERC will balance "commercially available" and "feasible" with project-specific constraints such as right-of-way, supply chain limits, or local permitting limits.
• The mandated presumption against recovery for non‑best conductors could lead to disputes or litigation over FERC’s methodology and whether a given conductor meets the test.
• The bill does not provide an explicit process for exemptions or for handling situations where best-available conductors are not obtainable in time for a project.