If during any outage you need to report an Emergency, call 911.
To report a power outage to National Grid please contact them at 1-800-322-3223 or 1-800-465-1212. Prior to doing so, you can visit the National Grid's Power Outage Map web page which is updated every fifteen minutes. If the outage you are reporting is already reflected, then a crew is working to repair it. If you do not yet see the outage, call the above numbers.
For additional information feel free to visit the National Grid website.