Electricity Supplier Contacts For General inquiries, please email us at supplier.services@us.ngrid.com or call us on the designated Supplier Services line at (516) 545-4939.

Business Contact (Primary) Joan Jerz Analyst 175 E. Old Country Rd. East Office Bldg. Ground Fl. Hicksville, NY 11801 Telephone: 516-545-4939 Fax: 516-545-3250 supplier.services@us.ngrid.com Business Contact (Primary) Donna Marie Laura Analyst 175 E. Old Country Rd. East Office Bldg. Ground Fl. Hicksville, NY 11801 Telephone: 516-545-4939 Fax: 516-545-3250 supplier.services@us.ngrid.com Manager Juliana Griffiths 175 E. Old Country Rd. East Office Bldg. Ground Fl. Hicksville, NY 11801 Telephone: 516-545-2632 Fax: 516-545-3250

Enhanced Data Services contact: LoadDataServices-USMA@us.ngrid.com Enhanced Metering Information contact: ISO-MDS@us.ngrid.com ICAP Tag Information contact: LoadDataServices-USMA@us.ngrid.com If a mailing address is required use: Meter Data Services National Grid 300 Erie Boulevard West, C-1 Syracuse, NY 13202-4250 Technical Contact EDI Coordinators EDI-Support@us.ngrid.com