RE Papago – Delaney Line is a 500kV underground line from RE Papago Solar PV-Battery Energy Storage System, Western Maricopa, Arizona, US, to Delaney, Western Maricopa, Arizona, US.

The project, which is currently in the planning stage, is expected to be commissioned in 2023.


RE Papago – Delaney Line is an underground line that will be operated by Arizona Public Service. The line will carry alternating current (AC).

RE Papago – Delaney Line project development status

The construction works on the RE Papago – Delaney Line project will be commenced in 2022 and commissioning is expected in 2023.

About Arizona Public Service

Arizona Public Service Co (APS), a subsidiary of Pinnacle West Capital Corp, is an energy utility. It generates, procures, transmits and distributes electricity. The company generates electricity using coal, nuclear, gas, oil, solar, wind, geothermal and biomass. Through demand response, day-ahead call option, exchange, tolling, purchase and other agreements, APS procures electricity from third parties and also owns interests in renewable energy projects, and transmission facilities that are in under development and construction phase. The company serves customers in Arizona. APS is headquartered in Phoenix, 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.