Eversource Energy (Massachusetts) Data Access Guide
Eversource is Massachusetts' largest electric utility, serving about 1.53 million electric and 280,000 gas customers across Eastern and Western Massachusetts. For C&I energy teams, Eversource offers modern programmatic data access through Green Button Connect My Data (OAuth 2.0 via UtilityAPI / Usage Link), Energy Profiler Online for interval data, and full supplier EDI. Massachusetts is a fully deregulated supply market, so customers buy generation from competitive suppliers or Basic Service while Eversource provides delivery.
How to Get Your Eversource Energy (Massachusetts) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| Online Portal | ✓ | ✓ | Residential, Commercial, Industrial | Bills, monthly usage | Monthly | Web, PDF |
| Green Button Download | ✓ | ✓ | All electric | 13 months usage | Daily/weekly | XML (ESPI) |
| Green Button Connect (UtilityAPI) | ✓ | ✓ | AMI / smart meter | 15-min interval, billing | Daily to near real-time | XML, JSON, CSV |
| Energy Profiler Online (EPO) | ✓ | ✓ | Interval-meter C&I | Historical interval data | Daily updates (annual plan) | CSV, portal |
| Supplier EDI (814/867/810/820) | — | ✓ | Competitive suppliers | Enrollment, usage, billing, payment | Daily to monthly | ANSI X12 4010 |
| Energy Reporting & Disclosure Portal | — | ✓ | Building owners (with tenant auth) | Building-level usage | 2 business days | Portal reports |
Billing Data Access
Eversource provides billing data through its online account portal with up to 36 months of bills and usage history in PDF and web formats. Third parties access billing data via signed authorization forms, the Energy Reporting & Disclosure Portal, Green Button Connect, and supplier EDI.
What Data Is on Your Eversource Energy (Massachusetts) Bill
- Current and historical bills (36 months)
- Monthly billing amounts
- kWh usage (electric) and therms usage (gas)
- Payment history
- Account information and settings
- Bill comparison and bill forecast (smart meter customers)
How to Download Eversource Energy (Massachusetts) Bills (Business & Commercial)
- 01Log into the Eversource online account for the C&I account
- 02Review billing and usage history (up to 36 months)
- 03For interval analysis, enroll in Energy Profiler Online
- 04For third-party access, submit the Tenant or Property Owner authorization form
- 05For automated supplier data, use EDI 810/867 transactions
How to Download Eversource Energy (Massachusetts) Bills (Residential)
- 01Create or sign in at eversource.com online account login
- 02Open Account & Billing and select Past Bills and Payments
- 03View bills from the past 36 months and open any as PDF
- 04Open Usage History to view monthly kWh or therms
- 05Optionally enable Go Paperless for emailed PDF bills
Third-Party Access to Eversource Energy (Massachusetts) Billing Data
Authorization Form (Energy Disclosure)
- 01Have the customer complete a Tenant Authorization or Property Owner Verification form
- 02Specify account number, recipient, data types, and time period
- 03Email the signed form to EnergyDisclosure@eversource.com
- 04Eversource processes typically within 2 business days
- 05Access data through the Energy Reporting & Disclosure Portal
Green Button Connect (UtilityAPI / Usage Link)
- 01Register as a third party at usagelink.eversource.com/third-party/register
- 02Test in sandbox mode with test_residential / test_commercial accounts
- 03Receive Eversource approval (5-10 business days) and activate Live mode
- 04Send the customer an OAuth authorization request
- 05Retrieve data via the UtilityAPI / Green Button API
Want to understand the charges on your bill?
See the Eversource Energy (Massachusetts) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
Eversource is deploying AMI smart meters across Massachusetts (Western MA starting July 2025, Eastern MA expansion underway). Smart meter customers can access 15-minute interval data through Green Button Connect (via UtilityAPI Usage Link) and Energy Profiler Online. Green Button download provides 13 months of usage.
How to Download Eversource Energy (Massachusetts) Interval Data via Green Button
- 01Visit the Eversource Green Button page and press the Green Button link
- 02Enter your Eversource account number and ZIP code to authenticate
- 03Review the 13-month usage summary
- 04Download the ESPI-compliant XML file
- 05Open with a Green Button-compatible tool or share with a consultant
Interval data is essential for rate comparison and TOU analysis.
See which Eversource Energy (Massachusetts) rate schedule is best for your usage pattern →Third-Party API Access
Eversource enables third-party programmatic access through Usage Link, its deployment of UtilityAPI's Utility Data Exchange. Third parties register, test in sandbox, get approved, then request customer OAuth authorizations to retrieve billing and 15-minute interval data via the UtilityAPI and Green Button APIs.
Available Eversource Energy (Massachusetts) API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| List customer authorizations | /customers/{customer_id}/authorizations | GET | JSON |
| Retrieve customer bills | /customers/{customer_id}/bills | GET | JSON |
| Retrieve interval data | /customers/{customer_id}/intervals | GET | JSON / CSV |
| Green Button ESPI XML download | Green Button API ESPI endpoint | GET | XML (ESPI) |
How to Register as a Eversource Energy (Massachusetts) API Vendor
- 01Create a UtilityAPI account and register Eversource Massachusetts (EVRSRCMA)
- 02Test in sandbox mode with provided test accounts
- 03Pass Eversource review (5-10 business days) and switch to Live mode
- 04Request customer authorization via dashboard, web form, or OAuth URL
- 05Retrieve data via UtilityAPI JSON, Web, or Green Button APIs
EDI (Electronic Data Interchange)
Supported Eversource Energy (Massachusetts) EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 814 | Change / Enrollment / Drop | Customer enrollments, changes, drops, and historical usage requests |
| 867 | Monthly / Historical Usage | Monthly and historical meter usage data to suppliers |
| 810 | Invoice | LDC and ESP usage and billing invoices |
| 820 | Payment / Remittance | Supplier payment and remittance processing |
| 824 | Application Advice | Confirms receipt and processing status of transactions |
How to Enroll in Eversource Energy (Massachusetts) EDI
- 01Contact Supplier Services (SupplierServicesEMA@eversource.com for electric)
- 02Execute the Competitive Supplier Service Agreement and Terms & Conditions
- 03Choose connectivity: VAN, SFTP, or Supplier eConnection portal
- 04Complete EDI testing of 814, 867, and 820 transactions
- 05Obtain sign-off and go live for production enrollments
Rate Schedules & Tariff Analysis
Eversource MA commercial electric bills combine Eversource delivery charges (customer charge, volumetric delivery, and per-kW demand on G-2/G-3) with a separately procured supply charge (Basic Service, competitive supplier, or municipal aggregation). Demand charges are a dominant cost driver for G-2 and G-3. Rates are filed separately for the Greater Boston/Eastern MA and Western MA divisions and reset under the DPU 22-22 performance-based ratemaking plan.
Eversource Energy (Massachusetts) Rate Schedule List
| Schedule | Applicability |
|---|---|
| Rate G-1 | Small commercial (<~10 kW) |
| Rate G-2 | Medium commercial, demand-metered |
| Rate G-3 | Large C&I TOU (>100 kW avg) |
| EGMA C&I Gas (G-4x/G-5x) | Commercial/industrial natural gas distribution |
Eversource Energy (Massachusetts) Rate Features & TOU Details
- Delivery and supply are unbundled; supply can come from Basic Service, a competitive supplier, or a municipal aggregation
- G-2 and G-3 are demand-metered with significant per-kW demand charges (G-2 ~$27/kW)
- G-3 is a time-of-use rate for customers above ~100 kW average demand
- Annual delivery-rate updates under the DPU 22-22 PBR plan (~3.5%/yr) plus periodic reconciling factor changes
- Separate rate schedules for the Greater Boston/Eastern MA and Western MA divisions
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Eversource Energy (Massachusetts) Rate Optimization Guide →Sources
Other Data Access Programs
Energy Profiler Online (EPO)
Eversource's interval data service (with Schneider Electric) providing granular load shapes, power factor, and multi-site management for interval-meter customers and authorized energy professionals.
- 01Confirm an interval-recording / smart meter is installed
- 02Request the EPO Service Agreement from epoadmin@eversource.com
- 03Choose one-time ($50) or annual ($300/year) access
- 04Submit the signed agreement and payment
- 05Log in and download interval data in CSV
Energy Reporting & Disclosure Portal
Building-level usage access for owners performing energy benchmarking and disclosure, using tenant authorization and property owner verification forms.
- 01Register and submit the Property Owner Verification form
- 02Collect signed Tenant Authorization forms
- 03Email forms to EnergyDisclosure@eversource.com
- 04Eversource releases data within ~2 business days
- 05Access tenant and building-level usage in the portal
Limitations & Considerations
- ⚠Smart meter rollout is ongoing (2025-2026); interval data is only available where AMI/interval meters are installed
- ⚠Green Button download is limited to a rolling 13-month window
- ⚠Interval data is not billing-quality and may not match monthly bills
- ⚠Energy Profiler Online charges $50 one-time or $300/year per account
- ⚠EDI is supplier-facing only, not for individual customer self-service
- ⚠Data updates are typically daily or weekly, not real-time
Eversource Energy (Massachusetts) Data Access FAQ
How do C&I customers get 15-minute interval data from Eversource?▾
Smart meter and interval-meter customers can access 15-minute interval data through Green Button Connect (via UtilityAPI Usage Link, live since August 2025) or Energy Profiler Online. Green Button download provides 13 months of usage as ESPI XML. Smart meter rollout is ongoing, so availability varies by site.
Does Eversource Massachusetts support EDI?▾
Yes, for competitive suppliers. Eversource supports ANSI X12 Version 4010 EDI for electric (814 enrollments, 867 usage, 810 invoices, 820 payments, 824 advice) and EBT for gas. Suppliers sign a service agreement and complete testing before going live.
Who supplies my electricity if Eversource is the utility?▾
Massachusetts is deregulated, so Eversource delivers electricity and reads meters, but generation supply comes from a competitive supplier, a municipal aggregation, or Eversource Basic Service. Your bill separates delivery charges from supply charges.
How does a third party get authorized to access Eversource data?▾
Third parties use Green Button Connect (customer OAuth authorization via Usage Link / UtilityAPI), an Energy Disclosure authorization form emailed to EnergyDisclosure@eversource.com, or an Energy Profiler Online service agreement. Most authorizations process within a few business days.
What does Energy Profiler Online cost and provide?▾
Energy Profiler Online provides granular interval load shapes for interval-meter customers. It costs $50 for a one-time data pull (credentials expire after 30 days) or $300 per account per year for ongoing access with regular updates. Data is for analysis, not billing verification.
How far back does Eversource data go?▾
The online portal holds up to 36 months of bills and usage. Green Button download provides a rolling 13-month window. Energy Profiler Online can deliver all available historical interval data at the time of request.
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