Iberdrola USA subsidiary Rochester Gas and Electric is planning to invest about $250m on the Rochester Area Reliability Project, which involves building a new 1.9-mile, 345-kV transmission line in western Monroe County in New York.
The company said Sept. 30 that the project also entails:
- Building a new substation on about 10 acres in the town of Chili, N.Y.
- Rebuilding or relocating 2.5 miles of an existing circuit located in a railroad right of way in Chili.
- Building 9.8 miles of 115-kV transmission line between the new substation in Chili and an existing substation in the town of Gates, N.Y.
- Building 11.3 miles of 115-kV transmission line to connect the new substation in Chili to RG&E’s existing Station 23 in Rochester, including a 1.1-mile section in Gates.
- Improvements to existing substations in Gates, Rochester and the town of Henrietta.
According to the application for a certificate of environmental compatibility and public need filed with the state Public Service Commission, the proposed routes for the circuits are mainly within and along existing transmission and railroad corridors, including a New York Power Authority transmission corridor, a National Grid USA-RGE transmission corridor, the Rochester & Southern rail line and the CSX railroad main line in Chili, Gates, Henrietta and Rochester.
The new 345-kV circuit 40 will connect the new Station 255 in Chili to the existing Station 80 in Henrietta.
The project “has been conceived and will be designed, constructed and operated in a manner that avoids or minimizes impacts to environmental resources within the Greater Rochester area,” the company said.
The Rochester area electric system normal source capability is limited by the sources into the system, which are: the four bulk power transformers at Station 80, which tap NYPA’s 345-kV bulk transmission system and can provide about 1,221 MW; the three bulk power transformers at Station 122, which tap NYPA’s 345-kV bulk transmission system and can provide about 676 MW; and Constellation Energy Nuclear Group’s R.E. Ginna nuclear power plant, which may provide up to 610 MW.
These three sources provide a total capability of about 2,507 MW, RG&E added, noting that in 2016, the system will be at its full capacity under normal conditions.
“[This investment is] part of the RG&E and [Iberdrola subsidiary New York State Electric & Gas] plan to invest approximately $2bn on infrastructure improvements in New York State from 2011 through 2015 to meet demand growth and improve system reliability,” Mark Lynch, president of RG&E and NYSEG, said in the statement.
If the project is approved, construction is expected to begin in the spring of 2013, with an expected in-service date by winter 2014.
Iberdrola USA is a subsidiary of Iberdrola S.A. National Grid USA is a subsidiary of National Grid plc. Constellation Energy Nuclear Group is a joint venture between Constellation Energy (NYSE:CEG) and EDF Group.