For Suppliers and Partners 
independent system operator (ISO) map

For information about New York State's wholesale energy market and these energy pricing zones, visit the New York Independent System Operator's (NYISO's) Web site at www.nyiso.com.

  • Zones A, B, C, D and E are in the West pricing zone.
  • Zone F is in the East pricing zone.
  • Zones G, H and I are in the Lower Hudson Valley pricing zone.
  • If a customer is a NYSEG electricity customer, the customer's location (based on the electrical connection) relative to the NYISO pricing zone used by NYSEG in determining the supply price (if applicable) for the customer's bill.
  • For details, see NYSEG's PSC approved tariff.

 

NYISO Zones  WestGeneseeCentralMohawk ValleyNorthCapitalHudson ValleyMillwoodMillwoodMillwood

A - West Zone

B - Genesee Zone

C - Central Zone

D - North Zone

E - Mohawk Valley Zone

F - Capital Zone

G - Hudson Valley Zone

H - Millwood Zone

 

 
Central Zone  

 

County Name

Sub-Zone

Allegany

 

  Town of

 

  Alfred

NYSEG NY Central 

  Almond

NYSEG NY Central 

  Birdsall

NYSEG NY Central 

  Burns

NYSEG NY Central

  Genesee

NYSEG NY Central  

  Grove

NYSEG NY Central 

  Ward

NYSEG NY Central 

  West Almond

NYSEG NY Central  

  Village of

 

  Alfred

NYSEG NY Central  

  Almond

NYSEG NY Central  

  Canaseraga

NYSEG NY Central  

Broome  

 

  City of

 

  Binghamton

NYSEG NY Central  

  Town of

 

  Barker

NYSEG NY Central  

  Binghamton

NYSEG NY Central  

  Chenango

NYSEG NY Central  

  Colesville

NYSEG NY Central  

  Conklin

NYSEG NY Central  

  Dickinson

NYSEG NY Central  

  Fenton

NYSEG NY Central  

  Kirkwood

NYSEG NY Central  

  Lisle

NYSEG NY Central  

  Maine

NYSEG NY Central  

  Nanticoke

NYSEG NY Central  

  Triangle

NYSEG NY Central  

  Union

NYSEG NY Central  

  Vestal

NYSEG NY Central  

  Windsor

NYSEG NY Central  

  Village of

 

  Endicott

NYSEG NY Central  

  Johnson City

NYSEG NY Central  

  Lisle

NYSEG NY Central  

  Port Dickinson

NYSEG NY Central  

  Whitney Point

NYSEG NY Central  

  Windsor

NYSEG NY Central  

Cattaraugus  

 

  City of

 

  Olean

NYSEG NY Central  

  Town of

 

  Allegany

NYSEG NY Central  

  Carrollton

NYSEG NY Central  

  Olean

NYSEG NY Central  

  Village of

 

  Allegany

NYSEG NY Central  

  Limestone

NYSEG NY Central  

Cayuga

 

  City of

 

  Auburn

NYSEG NY Central  

  Town of

 

  Aurelius

NYSEG NY Central  

  Brutus

NYSEG NY Central  

  Fleming

NYSEG NY Central  

  Genoa

NYSEG NY Central  

  Ledyard

NYSEG NY Central  

  Locke

NYSEG NY Central  

  Mentz

NYSEG NY Central  

  Montezuma

NYSEG NY Central  

  Moravia

NYSEG NY Central  

  Owasco

NYSEG NY Central  

  Scipio

NYSEG NY Central  

  Sempronius

NYSEG NY Central  

  Sennett

NYSEG NY Central  

  Springport

NYSEG NY Central  

  Summerhill

NYSEG NY Central  

  Throop

NYSEG NY Central  

  Venice

NYSEG NY Central  

Village of

 

  Aurora

NYSEG NY Central  

  Cayuga

NYSEG NY Central  

  Moravia

NYSEG NY Central  

  Port Byron

NYSEG NY Central  

  Union Springs

NYSEG NY Central  

  Weedsport

NYSEG NY Central  

Chemung  

 

  City of

 

  Elmira

NYSEG NY Central  

  Town of

 

  Baldwin

NYSEG NY Central  

  Big Flats

NYSEG NY Central  

  Catlin

NYSEG NY Central  

  Chemung

NYSEG NY Central  

  Elmira

NYSEG NY Central 

  Erin

NYSEG NY Central  

  Horseheads

NYSEG NY Central  

  Southport

NYSEG NY Central  

  Van Etten

NYSEG NY Central  

  Veteran

NYSEG NY Central  

  Village of

 

  Elmira Heights

NYSEG NY Central  

  Horseheads

NYSEG NY Central  

  Millport

NYSEG NY Central  

  Van Etten

NYSEG NY Central  

  Wellsburg

NYSEG NY Central  

Chenango  

 

  Town of

 

  Coventry

NYSEG NY Central  

  German

NYSEG NY Central 

  Greene

NYSEG NY Central 

  McDonough

NYSEG NY Central 

  Otselic

NYSEG NY Central 

  Pharsalia

NYSEG NY Central 

  Pitcher

NYSEG NY Central 

  Village of

 

  Greene

NYSEG NY Central  

  Oxford

NYSEG NY Central 

Cortland

 

  City of

 

  Cortland

NYSEG NY Central  

  Town of

 

  Cincinnatus

NYSEG NY Central 

  Cortlandville

NYSEG NY Central 

  Freetown

NYSEG NY Central 

  Harford

NYSEG NY Central 

  Homer

NYSEG NY Central 

  Lapeer

NYSEG NY Central 

  Marathon

NYSEG NY Central 

  Preble

NYSEG NY Central 

  Taylor

NYSEG NY Central 

  Virgil

NYSEG NY Central 

  Willet

NYSEG NY Central 

  Village of

 

  Homer

NYSEG NY Central  

  Marathon

NYSEG NY Central 

  McGraw

NYSEG NY Central 

Livingston

 

  Town of

 

  Conesus

NYSEG NY Central  

  Groveland

NYSEG NY Central 

  Leicester

NYSEG NY Central 

  Mt. Morris

NYSEG NY Central 

  North Dansville

NYSEG NY Central 

  Nunda

NYSEG NY Central 

  Ossian

NYSEG NY Central 

  Portage

NYSEG NY Central

  Sparta

NYSEG NY Central 

  Springwater

NYSEG NY Central 

  West Sparta

NYSEG NY Central 

  Village of

 

  Dansville

NYSEG NY Central 

  Leicester

NYSEG NY Central 

  Nunda

NYSEG NY Central 

Madison

 

  Town of

 

  DeRuyter

NYSEG NY Central 

  Georgetown

NYSEG NY Central 

  Village of

 

  DeRuyter

NYSEG NY Central  

Onondaga

 

  Town of

 

  Camillus

NYSEG NY Central 

  Elbridge

NYSEG NY Central 

  Marcellus

NYSEG NY Central 

  Otisco

NYSEG NY Central 

  Skaneateles

NYSEG NY Central 

  Spafford

NYSEG NY Central 

  Van Buren

NYSEG NY Central 

  Village of

 

  Elbridge

NYSEG NY Central  

  Jordan

NYSEG NY Central 

  Marcellus

NYSEG NY Central 

  Skaneateles

NYSEG NY Central 

Ontario

 

  City of

 

  Canandaigua

NYSEG NY Central  

  Geneva

NYSEG NY Central 

  Town of

 

  Canandaigua

NYSEG NY Central  

  Geneva

NYSEG NY Central 

  Gorham

NYSEG NY Central 

  Hopewell

NYSEG NY Central 

  Manchester

NYSEG NY Central 

  Naples

NYSEG NY Central 

  Phelps

NYSEG NY Central 

  Seneca

NYSEG NY Central 

  Village of

 

  Clifton Springs

NYSEG NY Central  

  Manchester

NYSEG NY Central 

  Naples

NYSEG NY Central 

  Phelps

NYSEG NY Central 

  Rushville

NYSEG NY Central 

  Shortsville

NYSEG NY Central 

Owasco

 

  Town of

 

  Moravia

NYSEG NY Central  

Schuyler  

 

  Town of

 

  Catharine

NYSEG NY Central 

  Cayuta

NYSEG NY Central 

  Dix

NYSEG NY Central 

  Hector

NYSEG NY Central 

  Montour

NYSEG NY Central 

  Orange

NYSEG NY Central 

  Reading

NYSEG NY Central 

  Tyrone

NYSEG NY Central 

Village of

 

Burdett

NYSEG NY Central 

  Montour Falls

NYSEG NY Central 

  Odessa

NYSEG NY Central 

  Watkins Glen

NYSEG NY Central 

Seneca

 

  Town of

 

  Covert

NYSEG NY Central 

  Fayette

NYSEG NY Central 

  Junius

NYSEG NY Central 

  Lodi

NYSEG NY Central 

  Ovid

NYSEG NY Central 

  Romulus

NYSEG NY Central 

  Seneca Falls

NYSEG NY Central 

  Tyre

NYSEG NY Central 

  Varick

NYSEG NY Central 

Waterloo

NYSEG NY Central 

Steuben

 

  City of

 

  Corning

NYSEG NY Central 

  Hornell

NYSEG NY Central 

  Town of

 

  Addison

NYSEG NY Central 

  Avoca

NYSEG NY Central 

  Bath

NYSEG NY Central 

  Bradford

NYSEG NY Central 

  Cameron

NYSEG NY Central 

  Campbell

NYSEG NY Central 

  Canisteo

NYSEG NY Central 

  Caton

NYSEG NY Central 

  Cohocton

NYSEG NY Central 

  Corning

NYSEG NY Central 

  Dansville

NYSEG NY Central 

  Erwin

NYSEG NY Central 

  Fremont

NYSEG NY Central 

  Greenwood

NYSEG NY Central 

  Hartsville

NYSEG NY Central 

  Hornby

NYSEG NY Central 

  Hornellsville

NYSEG NY Central 

  Howard

NYSEG NY Central 

  Jasper

NYSEG NY Central 

  Lindley

NYSEG NY Central 

  Prattsburg

NYSEG NY Central  

  Pulteney

NYSEG NY Central 

  Rathbone

NYSEG NY Central

  Thurston

NYSEG NY Central  

  Troupsburg

NYSEG NY Central 

  Tuscarora

NYSEG NY Central 

  Urbana

NYSEG NY Central 

  Wayland

NYSEG NY Central 

  Wayne

NYSEG NY Central 

  West Union

NYSEG NY Central 

  Wheeler

NYSEG NY Central 

  Woodhull

NYSEG NY Central 

  Village of

 

  Addison

NYSEG NY Central  

  Almond

NYSEG NY Central 

  Arkport

NYSEG NY Central  

  Avoca

NYSEG NY Central 

  Bath

NYSEG NY Central 

  Canisteo

NYSEG NY Central 

  Cohocton

NYSEG NY Central 

  Hammondsport

NYSEG NY Central 

  North Hornell

NYSEG NY Central 

  Painted Post

NYSEG NY Central 

  Riverside

NYSEG NY Central 

  Savona

NYSEG NY Central 

  South Corning

NYSEG NY Central 

  Wayland

NYSEG NY Central 

Tioga  

 

  Town of

 

  Barton

NYSEG NY Central 

  Berkshire

NYSEG NY Central 

  Candor

NYSEG NY Central 

  Newark Valley

NYSEG NY Central 

  Nichols

NYSEG NY Central 

  Owego

NYSEG NY Central 

  Richford

NYSEG NY Central 

  Village of

 

  Candor

NYSEG NY Central  

  Nichols

NYSEG NY Central 

  Owego

NYSEG NY Central 

Tompkins  

 

  City of

 

  Ithaca

NYSEG NY Central 

  Town of

 

  Danby

NYSEG NY Central 

  Dryden

NYSEG NY Central 

  Enfield

NYSEG NY Central 

  Groton

NYSEG NY Central 

  Ithaca

NYSEG NY Central 

  Lansing

NYSEG NY Central 

  Ulysses

NYSEG NY Central 

  Village of

 

  Dryden

NYSEG NY Central