Wintersburg – Maricopa Line is a 500kV overhead line with a length of 82.07km from Wintersburg, Arizona, US, to Maricopa, Arizona, US.

The project, which is currently in the planning stage, is expected to be commissioned in 2024.


Wintersburg – Maricopa Line is an overhead line that will be operated by Salt River Project Agricultural Improvement And Power District. The line will carry alternating current (AC) through single circuit cable.

Wintersburg – Maricopa Line project development status

The construction works on the Wintersburg – Maricopa Line project will be commenced in 2023 and commissioning is expected in 2024.

About Salt River Project Agricultural Improvement And Power District

Salt River Project Agricultural Improvement and Power District (The District), a political subdivision of Arizona, is a community-based not-for-profit integrated power utility. It generates, purchases, transmits and distributes electricity. The company produces energy using coal, nuclear, natural gas, hydro, renewable, and energy efficiency programs. Under the contracts with the Salt River Valley Water Users’ Association, the District operates a federal reclamation project, the Salt River Project. It serves residential, commercial, industrial, and agriculture customers in parts of Maricopa, Gila and Pinal counties. The District is headquartered in Tempe, Arizona, the US.


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.