Supplier eConnection is Eversource's Supplier Web Portal which allows for transmission of business to business documents through a web browser.
Once you have been set up for transmittal, you can access your assigned mailbox for Purchase Orders that have been awarded to your company. In return, you can submit Invoices which will be transmitted back into our system, and check their status.
For Eversource Eastern Massachusetts invoice information, please call 781-441-8891.
Our Ariba Supplier System allows you to register and maintain your supplier information at Eversource.