ISO New England offers full support for participants in New England’s wholesale electricity markets and power system. For other types of inquiries, please use the appropriate contact option to the left.
Submit an inquiry or request to Customer Support via Ask ISO
Each unique submission is called a “case.” Please refer to the Ask ISO user guide to learn how to access the system, submit cases, and view answers to commonly asked questions.
Email Customer Support at firstname.lastname@example.org
New ISO customers with registration or participation questions should email the ISO membership coordinator at email@example.com. Both email options will generate a case (a unique submission record) that allows you to track your inquiry. Emails received outside of business hours will be reviewed the next business day. For emergencies after hours, weekends, and holidays, please follow the instructions below to reach us after hours.
Call Customer Support at (413) 540-4220 or (833) 248-4220
Customer Support can also help with financial assurance margin inquiries (80%, 90%, 100% Notices). Note that telephone calls to ISO New England may be recorded or monitored. Learn more.
Reach Us After Hours, Weekends, and Holidays
Use the emergency inquiry pager at (877) 226-4814.
View our regular business hours.
You will also find helpful resources in the Participate section.