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  1. Market Data
August 28, 2021

Adair County Substation, US

By Carmen

Adair County Substation is a 765kV substation located in Adair County, Kentucky, US.

The Adair County Substation project’s construction is expected to begin in 2025. The works are expected to be commissioned in 2029.


Adair County Substation project, which is a new substation, will be operated by MidAmerican Energy.

The designed voltage level of the substation is 765/345kV and the operating voltage level is 765/345kV.

The step-in voltage of the project is 765kV and the step-out voltage is 345kV. Upon completion, the substation will have a capacity of 560MVA.

Adair County Substation project development status

The project is expected to be commissioned in 2029. Approximately $92m was financed by the authorities to undertake the construction works of the project.

About MidAmerican Energy

MidAmerican Energy Co (MidAmerican Energy), a subsidiary of Berkshire Hathaway Energy, is a regulated electric and natural gas utility company that carries out the generation, transmission and distribution and selling of electricity. The company also undertakes distribution, selling and transportation of natural gas. It caters to a diverse clientele comprising of urban and rural residential customers as well as commercial and industrial customers.


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.

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