Following is information for energy suppliers and aggregators in order to facilitate participation in the competitive energy market.
Numeric Profile Segments
The methodology used to estimate supplier loads is described in the Terms and Conditions for Energy Service Providers section of the currently effective Electric Delivery Service Tariff. In compliance with the terms and conditions, Eversource is providing the hourly load shapes for various customer classes which are used to estimate these supplier loads.
To download the average hourly data for a specific customer class, select the MS Excel file format and save the file to your hard drive. Once the file is saved, it can be imported into most spreadsheet programs.
Loss Factors
The loss factors below are utilized to calculate losses, which will then be added to actual or estimated load to arrive at total supplier assigned load. The loss factors below do not include transmission losses.
| Rate Type |
Loss Factors |
| Rate R - Residential |
7.75% |
| Rate G - Small Commercial, < 100KW |
7.75% |
| Rate GV - Customers between 100 KW - 1000 KW |
6.31% |
| Rate LG - Customers > 1000 KW |
4.42% |
| Rate OL & EOL - Outdoor Lighting |
7.72% |
Capacity Unaccounted for Energy (UFE) Information
This daily Unaccounted for Energy (UFE) value reflects the difference between the day's sum of the individual Eversource customer coincident peak capacity values (inclusive of non-Pool Transmission Facility losses) and the total Eversource system peak load for the applicable capability year.
Effective September 15, 2022, the value is 1.09384.
Supplier Service Master Agreement
Click here for our Supplier Services Master Agreement.
Schedules
Electronic Interchange (EDI) Schedule
| Daily Activity/Event |
Approximate Completion Time |
| Receive Supplier EDI Input |
00:00 - 15:00 |
| Daily Billing Cycle Process |
16:00 - 08:00 (Upload readings, post cash billing) |
| Bills printed/inserted/mailed |
By 18:00 |
| Transmit EDI Output to Suppliers |
12:00 - 15:00 |
Holiday Schedule for EDI
Eversource will not process or send Electronic Data Interchange (EDI) transactions on the holidays as listed in the
Electric Delivery Service Tariff. EDI transactions will be processed and sent the following business day.
Meter Reading
Supplier Training Schedule
Supplier Training sessions are offered to new suppliers just prior to moving to EDI production in the Eversource territory.
Forms
State Information
For More Information
Residential:
Monday through Friday
7 a.m. to 7 p.m.
800-662-7764
800-346-9994 (Hearing Impaired TTY/TDD)
Business:
Monday through Friday
8 a.m. to 5 p.m.
866-554-6025
Energy Suppliers and Brokers