Medicine Bow – Mona Line is a 500kV overhead line with a length of 644km from Medicine Bow, Wyoming, US, to Mona, Utah, US.

The project, which is currently under construction, is expected to be commissioned in 2021.


Medicine Bow – Mona Line is an overhead line that will be operated by Rocky Mountain Power. The line will carry alternating current (AC) through double circuit cable.

The development of the Medicine Bow – Mona Line project has been approved by the The Bureau of Land Management.

Medicine Bow – Mona Line project development status

The construction works on the Medicine Bow – Mona Line project were commenced in 2018 and commissioning is expected in 2021.

About Rocky Mountain Power

Rocky Mountain Power (RMP), a subsidiary of PacifiCorp is an electric utility company that offers electricity distribution services. The company provides online electricity billing, power outages, energy rates and charges, economic development, outdoor recreation, payment and billing options, new energy connections, financial assistance, power and energy options, landlord information and programs, and power outage reporting services. Its other services include integrated energy resource planning, street lighting services, energy saving incentives, business energy solutions, line extension estimation, energy efficiency, environmental solutions and solar energy services.


All publicly-announced T&D Line & Substation projects included in this analysis are drawn from GlobalData’s Power IC. The information regarding the projects is sourced through secondary information sources such as country specific utility players, company news and reports, statistical organisations, regulatory body, government planning reports and their publications and is further validated through primary from various stakeholders such as power utility companies, consultants, energy associations of respective countries, government bodies and professionals from leading players in the power sector.