New York Transmission Company - Energy Highway

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Meyer-Eelpot Road-Ecogen-Flat Street-Greenidge 115 kV Line Reconductoring Project to Enable Wind Generation Project Description: Reconductor the existing 115 kV line from Meyer Substation to Eelpot Road Substation to Ecogen Substation to Flat Street Substation to Greenidge Substation with a conductor sized to no less than 1033 ACSR or equivalent (1250 A summer normal). The existing line extends from the Village of Dansville (Livingston County) to the Village of Dresden (Yates County). All terminals of the project are located in NYISO Zone C. Project Size: Length: 43.5 miles Voltage: 115kV Anticipated rating (summer normal): 1250 A Terminal Stations and required upgrades: The terminal substations are Meyer, Eelpot Road, Ecogen, Flat Street, and Greenidge. The 115 kV buswork, switches, and CT’s at Greenidge and Meyer, the CT’s at Flat Street, and the 115 kV switches at Eelpot Road Substations will need to be upgraded to match the capacity of the 1033 ACSR conductor. 46
Coffeen St. - Adirondack <strong>New</strong> 345kV line Project to Enable Wind Generation Project Description: This project will accommodate approximately 550 MW of Wind projects located in the Watertown N.Y. area that is presently in the NYISO queue. Construct a new 345 kV transmission line between Coffeen Street substation in Watertown, NY and Adirondack substation in Taylorville, NY. This transmission line will be a single circuit tower utilizing a bundled conductor overhead construction. It will traverse Lewis and Jefferson counties. In addition, construct two transmission lines (anticipated 115 kV construction) from the town of Lyme to Watertown and the town of Henderson to Watertown. All facilities are located in NYISO Zone E. Project Size: A. Watertown to Adirondack Line traversing Lewis and Jefferson Counties Length: 40 miles Voltage: 345 kV Anticipated Construction: 2x 795 ACSR (26/7) Anticipated Rating (in MVA @ 345 kV): 1331 B. Lyme to Watertown Line traversing Jefferson County Length: 16 miles Anticipated Voltage: 115 kV Anticipated Construction: 2x 795 ACSR (26/7) Anticipated Rating (summer normal MVA @ 115 kV): 444 C. Watertown to Henderson Line traversing and Jefferson County Length: 25 miles Anticipated Voltage: 115 kV Anticipated Construction: 2x 795 ACSR (26/7) Anticipated Rating (in MVA @ 115 kV): 444 <strong>New</strong> Terminal Stations and required upgrades: 1. Add single 345 kV position at Adirondack substation (it is assumed here Adirondack Station has been previously rebuilt to 345 kV) 2. Build Watertown 345 kV/ 115 kV collector station (it is presently anticipated that a nominally rated 448 MVA autotransformer will be required at this station as well as ample shunt compensation) 47
Page 1 and 2: The Response to the New York State
Page 3 and 4: I. Executive Summary On April 11, 2
Page 5 and 6: II. Respondent Information Summary
Page 7 and 8: These projects and the Immediately
Page 9 and 10: Production cost savings were used a
Page 11 and 12: adequacy deficiencies resulting fro
Page 13 and 14: “Apply advanced technologies that
Page 15 and 16: Estimated Cost ($M) Immediately Act
Page 17 and 18: The table below provides a more ext
Page 19 and 20: These stages are applicable to all
Page 21 and 22: C. Construction As currently propos
Page 23 and 24: IX. NY Transco Business structure T
Page 25 and 26: Summary of NY Transco Participants
Page 27 and 28: Niagara Mohawk Power Corporation/Na
Page 29: Appendix B 27
Page 32 and 33: 3 rd Leeds - Pleasant Valley 345kV
Page 34 and 35: 2 nd 345 kV Rock Tavern - Ramapo 34
Page 36 and 37: 3 rd New Scotland - Leeds 345kV Lin
Page 38 and 39: Moses - Marcy 230 kV to 345kV Upgra
Page 40 and 41: East Garden - Newbridge 345 kV Upgr
Page 42 and 43: Montour Falls - Hillside 115 kV Lin
Page 44 and 45: Canandaigua - Avoca - Hillside 230
Page 46 and 47: Bennett-Howard-Bath-Montour Falls 1

New York Transmission Company - Energy Highway

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