January 2012 Capital Investment - National Grid

More documents

Recommendations

Info

Exhibit ___ (EIOP-19)Page 121 of 684the local 115kV transmission system.The Capital-East study area serves approximately 88,200 customers. The study area islocated east of the Hudson River, with the center approximately adjacent to Albany. Thisarea extends approximately from Valley Falls in the north to Tivoli in the south. The largerload concentrations are in the cities of Rensselaer and Troy and in the towns along USRoute 9. There is a 345kV source into the area at Reynolds Road substation and a 115kVcorridor running in a north-south direction supplying approximately 90% of the distributionload in the area. There is also a 34.5kV sub-transmission system in the central area withthe 115kV sources from Greenbush, North Troy, Hudson and Hoosick substations. Inaddition, there is scattered generation on the 34.5kV system in the area.The Capital-North study area serves approximately 80,900 customers. The study areaencompasses the suburban area north of the City of Albany, including a mixture ofindustrial, commercial and residential customers throughout Colonie, Cohoes, Watervliet,Clifton Park, Halfmoon, Waterford, Niskayuna, and Ballston. The primary distributionsystem in Capital-North is predominantly 13.2kV with a few pockets of 4.16kV in theNewtonville area and 4.8kV in the Town of Ballston. All 4kV distribution substations aresupplied from the 34.5kV sub-transmission system, whereas most 13.2kV distributionsubstations are supplied from the 115kV transmission system. Maplewood and Patroonsubstations are the main sources for the 34.5kV sub-transmission system in this area, whichis operated in loop configuration. Along with these facilities, a group of hydro andcogeneration power plants located along the Mohawk Riverform the backbone of the local 34.5kV sub-transmission system.In addition to supplying power to all 4kV and a few 13.2kV distribution substations, the34.5kV sub-transmission system serves several industrial customers such as MohawkPaper, Honeywell, Norlite, and Cascade Tissue. Major distribution customers in this areainclude the Albany International Airport, which is supplied by feeders from Forts Ferry, SandCreek, Wolf Road, and Inman Road substations.The Mohawk study area serves approximately 55,600 customers. The study area includesthe city of Amsterdam and the rural areas west of the city. This area is comprised of mostlyresidential customers and farms with some commercial and industrial customers located inareas such as the City of Amsterdam, Gloversville, Johnstown, Northville, and Canajoharie.The primary distribution system in Mohawk is predominantly 13.2kV with areas of 4.16kV(Gloversville and Johnstown areas) and 4.8kV (Canajoharie). Most 4kV distributionsubstations are supplied from the 23kV and 69kV sub-transmission system, whereas most13.2kV distribution substations are supplied from the 115kV transmission system.The Schenectady study area serves approximately 58,100 customers. The study area isdefined by the region that includes the City of Schenectady and the surrounding suburbanareas. This area includes a mixture of industrial, commercial and residential customersspread across downtown to suburban areas such as Niskayuna, Glenville, and Rotterdam.The primary distribution system in Schenectady area is predominantly 13.2kV with a fewpockets of 4.16kV (Schenectady, Scotia and Rotterdam areas). All 4kV distributionsubstations are supplied from the local 34.5kV sub-transmission system, whereas most13.2kV distribution substations are supplied from the local 115kV transmission system. Inaddition, the downtown areas of Schenectady are served by a general network that issupplied by the Front Street Substation. Rotterdam, Woodlawn and Rosa Rd. are the mainsources for the local 34.5kV sub-transmission system, which is operated in loopconfiguration.V - 7122
Exhibit ___ (EIOP-19)Page 122 of 684The Schoharie study area serves approximately 21,500 customers. The study area isdefined by the region west and south of Schenectady that include towns and villages alongthe I-88 and Rt. 20 corridors such as Delanson, Schoharie, Cobleskill, Schenevus, andSharon Springs. This area is mostly rural comprised mainly of residential customers andfarms with few commercial and industrial customers. The primary distribution system inSchoharie is predominantly 13.2kV with areas of 4.8kV (Cobleskill, Worcester, andSchenevus areas). Most distribution substations in this region are supplied from the local23kV and 69kV sub-transmission system. Marshville and Rotterdam are the main sourcesfor the local 69kV sub-transmission system which is operated in loop configuration. The69kV sub-transmission system supplies power to both 4kV and 13.2kV distributionsubstations, besides a few industrial and commercial customers, such as Guilford Mills andSUNY Cobleskill. The existing 23kV sub-transmission system in Schoharie, which suppliespower to East Worcester, Worcester, and Schenevus substations, is operated in radialconfiguration from Summit substation.V - 8123
Page 1 and 2:
Niagara Mohawk Power Corporationd/b
Page 3 and 4:
Testimony of Electric Infrastructur
Page 5 and 6:
Exhibit ___ (EIOP-19)Page 2 of 684T
Page 7 and 8:
Exhibit ___ (EIOP-19)Page 4 of 684s
Page 9 and 10:
Exhibit ___ (EIOP-19)Page 6 of 684A
Page 11 and 12:
Exhibit ___ (EIOP-19)Page 8 of 684M
Page 13 and 14:
Exhibit ___ (EIOP-19)Page 10 of 684
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50:
Page 51 and 52:
Page 53 and 54:
Page 55 and 56:
Page 57 and 58:
Page 59 and 60:
Page 61 and 62:
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Page 69 and 70:
Page 71 and 72:
Page 73 and 74: Exhibit ___ (EIOP-19)Page 70 of 684
Page 123: Exhibit ___ (EIOP-19)Page 120 of 68
Page 159 and 160: This document has been redacted for
Page 175 and 176:
show all

January 2012 Capital Investment - National Grid

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?