U.S. Transmission Lines Market Size – By Voltage, By Conductor, Analysis, Share, Growth Forecast, 2025 – 2034

U.S. Transmission Lines Market Size

The U.S. transmission lines market size was valued at USD 958.1 million in 2024 and is estimated to grow at a CAGR of 3.1% from 2025 to 2034. The demand for new transmission lines is expected to considerably increase owing to the replacement and refurbishment of the aging grid infrastructure coupled with new developments such as deploying higher strength and durable transmission lines improving the existing infrastructure in safe, reliable, and sustainable solution. Such a combined attempt to strengthen and update the energy grid is expected to have a multifaceted impact on the industry in the coming years.
 

The increasing trend of IT integration within the electricity sector is projected to propel the smart grid infrastructure push and consequently bode well for the industry in the long run. In addition, the cluster of ongoing trends geared towards electric power grid enhancement, including grid energy storage, smart grid technology improvement, and R&D integration are collectively nurturing a very competitive industrial environment.

U.S. Transmission Lines Market Trends

As smart grid technology continues to proliferate and the need for the upgradation of existing transmission systems grows, resulting in the adoption of traditional overhead conductors. This is done as these conductors offers high installment owing to the factors including improved tensile strength, adequate sag resistance, and greater design economy. Such features are expected to increase the market penetration of these products further in the construction of long-span overhead transmission lines.

The unceasing increase in long-span overhead transmission lines and the focus on the deployment of superconducting cables driven by the growth in the requirement for better and robust transmission networks are predicted to be the major factors for stimulating the need for the product. Moreover, structural transformations of the grid pursued through the deployment of modern conductors and control technologies will also help in shaping a favorable transmission lines business climate for this sector.
 

U.S. Transmission Lines Market Analysis

The U.S. market for 221kV to 660kV transmission lines will surpass USD 665 million by 2034 due to the general tendency of electric utilities to extend their operational territories. Restructuring and revitalization of the longstanding electric infrastructure across the commercial, industrial, and utility sectors towards long-range electrical transmission will also assist in altering the business environment. Moreover, the integration of renewable energy into the national distribution grids and the strong drive for the modernization of the existing high-voltage transmission systems will shift the balance in favor of the industry.
 

The conventional transmission lines industry will grow at over 2.5% CAGR through 2034. The conventional transmission lines market is on the upturn due to the expansion of electricity demand, modernization of grid facilities and the shift towards a higher share of renewable energy. Furthermore, business trends including the incorporation of higher spending on aluminum composite conductors and digital monitoring technologies into electrical infrastructure will help expand the business environment over the given timeframe.
 

The U.S. transmission lines market is projected to surpass USD 1.2 billion by 2034. The growth can be attributed to the increasing demand for electricity, integration of renewable energy sources, and modernization of the grid. Increased investment in transmission infrastructure is also being driven after the introduction of policies such as the Infrastructure Investment and Jobs Act. Additionally, the number of underground transmission lines is on the rise, and this helps reduce the environmental impact and improve reliability.
 

Shifting trend towards the adoption of smart grid rollouts and the management of digital assets will further witness in collaboration between utilities and technology providers, which in turn will result in the expanded market growth. Furthermore, advanced conductors, high-temperature low-sag (HTLS) alternative as well as ongoing expansion plans which serve to create corridors for renewable energy will enhance efficiency and promote further development of the company.
 

U.S. Transmission Lines Market Share

Significant sectors of the U.S. transmission lines industry are dominated by major companies such as Nexans, Southwire Company, APAR Industries, Bekaert, and Prysmian. As competitive positioning is key, these leaders in the industry are actively engaging themselves in transmission projects and are planning concrete investments. The introduction of innovative components developed by focusing on advanced technologies has been the main structural change encouraging positive dynamics in business.
 

U.S. Transmission Lines Market Companies

Major players operating in the U.S. transmission lines industry are:

• American Wire Group
• APAR Industries
• Bekaert
• CTC Global
• Houston Wire & Cable
• Nexans
• Prysmian Group
• Quanta Services
• Siemens Energy
• Southwire Company
• Sumitomo Electric Industries
• TS Conductor
   

U.S. Transmission Lines Industry News

• In October 2024, the Grid Deployment Office (GDO) at the Department of Energy for the United States announced the funding of four new electricity transmission construction projects under the Transmission Facilitation Program (TFP), amounting to USD 1.5 billion in funding. This type of revolving fund directly attempts to mitigate some of the issues associated with transmission development financing, which enhances the dependability and sturdiness of the grid while ensuring cost-effective access to electrical energy for the millions of Americans located within the nation.
   
• In July 2024, TS Conductor Retail Holdings Limited nabbed USD 60 million in equity funding from reputed industry investors as a means of enhancing the production capabilities of the firm’s high-capacity power lines in the U.S. This additional investment will aid the company in setting up its second production site in the United States, a move that is in line with the organization’s strategy of enhancing the production of availed high-performance conductors by October to meet the customer needs and hesitance.
   

This U.S. transmission lines market research report includes in-depth coverage of the industry with estimates & forecast in terms of volume (ckm) and revenue (USD Million) from 2021 to 2034, for the following segments:

Market, By Voltage

• 132 kV to 220 kV
• 221 kV to 660 kV
• > 660 kV

Market, By Conductor

• Conventional
• High Temperature
• Others