Yankee Gas Services Company (Eversource Energy) Data Access Guide
Yankee Gas Services Company, operating as Eversource Energy, is Connecticut's largest natural gas distribution company, serving roughly 187,000 customers. It offers programmatic data access via online portal, the Energy Profiler Online interval-data service, EDI for licensed suppliers, and third-party API access through UtilityAPI.
How to Get Your Yankee Gas Services Company (Eversource Energy) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| Online Portal (Eversource.com) | ✓ | — | Residential & Commercial | Billing (36 mo), usage | Real-time on bill issuance | PDF, HTML |
| Energy Profiler Online (EPO) | ✓ | ✓ | C&I with interval meters | 15/30-min interval gas data | Within 2 business days; daily updates for phone-accessed meters (annual plan) | Excel, CSV |
| UtilityAPI | — | ✓ | All (vendor with consent) | Billing, usage, intervals | Auto-synced | JSON (REST) |
| EDI / EBT | ✓ | ✓ | Licensed suppliers | Enrollment, usage (867), invoice | 1-5 business days | ANSI X12 |
| Agency Portal | — | ✓ | Authorized agents | Billing, usage, accounts | On demand | CSV, PDF |
Billing Data Access
Yankee Gas provides billing data through a free online portal with up to 36 months of billing history, plus third-party aggregation via UtilityAPI and an Agency Portal for authorized representatives.
What Data Is on Your Yankee Gas Services Company (Eversource Energy) Bill
- Delivery (distribution) charges
- Supply charges (if on competitive supply)
- Conservation Adjustment Mechanism (CAM)
- System Expansion Reconciliation (SER) charges
- Gas Supply Industry (GSI) charges
- Monthly consumption (ccf)
- Payment history
How to Download Yankee Gas Services Company (Eversource Energy) Bills (Business & Commercial)
- 01Log in to the business/commercial account at eversource.com
- 02Review the current bill including delivery, supply, CAM, SER, and GSI line items
- 03Access up to 36 months of billing history and download PDFs
- 04For multi-site portfolios, authorize an aggregator via UtilityAPI or request Agency Portal access
- 05Connect accounts to ENERGY STAR Portfolio Manager for automated monthly benchmarking
How to Download Yankee Gas Services Company (Eversource Energy) Bills (Residential)
- 01Create or log in to an account at https://www.eversource.com/security/account/login
- 02Open 'Your Account' to view the current bill and charges
- 03Navigate to 'Past Bills and Payments' to view up to 36 months of history
- 04Download any historical bill as a PDF
- 05Open 'Energy Usage History' to compare monthly consumption
Third-Party Access to Yankee Gas Services Company (Eversource Energy) Billing Data
UtilityAPI Aggregation
- 01Register at https://utilityapi.com/register
- 02Create an API token in the UtilityAPI dashboard
- 03Generate a customer authorization form via the v2 Forms API
- 04Send the form URL to the customer to authorize with Eversource credentials
- 05Retrieve bills, usage, and intervals via the UtilityAPI REST API
Agency Portal
- 01Contact Eversource at (800) 989-0900 to request Agency Portal access
- 02Submit signed customer Letters of Authorization
- 03Receive Eversource.com credentials for the Agency Portal
- 04Log in at the Yankee Gas agency landing page
- 05View and export billing/usage for authorized accounts
Want to understand the charges on your bill?
See the Yankee Gas Services Company (Eversource Energy) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
Interval gas data is available through the Energy Profiler Online (EPO) service powered by Schneider Electric for accounts equipped with interval-recording meters. EPO is a paid service available to both customers and authorized third parties.
How to Download Yankee Gas Services Company (Eversource Energy) Interval Data via Green Button
- 01Green Button / Connect My Data is not currently confirmed for Yankee Gas Connecticut service
- 02Eversource participates in Green Button standards development (NAESB REQ.21)
- 03As smart meters deploy in Connecticut, Green Button support may be added
- 04Contact Eversource at (800) 989-0900 to inquire about availability
Interval data is essential for rate comparison and TOU analysis.
See which Yankee Gas Services Company (Eversource Energy) rate schedule is best for your usage pattern →Third-Party API Access
Eversource partners with UtilityAPI for programmatic third-party access to billing, usage, and interval data with customer OAuth authorization. The Eversource integration is branded as UsageLink.
Available Yankee Gas Services Company (Eversource Energy) API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| List authorized accounts | https://utilityapi.com/api/v2/accounts | GET | JSON |
| Retrieve bills for a meter | https://utilityapi.com/api/v2/meters/{meter_id}/bills | GET | JSON |
| Retrieve usage for a meter | https://utilityapi.com/api/v2/meters/{meter_id}/usage | GET | JSON |
| Retrieve interval data | https://utilityapi.com/api/v2/meters/{meter_id}/intervals | GET | JSON |
How to Register as a Yankee Gas Services Company (Eversource Energy) API Vendor
- 01Register as a UtilityAPI business user
- 02Create an API token
- 03Create a customer authorization form via the v2 Forms API
- 04Send the form to the customer to authorize with Eversource credentials
- 05Query accounts, bills, usage, and intervals via REST endpoints
EDI (Electronic Data Interchange)
Supported Yankee Gas Services Company (Eversource Energy) EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 814 | Enrollment Request & Response | New supplier enrollment, changes, drops, moves |
| 867 | Historical / Monthly / Interval Usage | Retrieve monthly and interval consumption data |
| 810 | Invoice | Billing and invoice data |
| 820 | Payment / Remittance Advice | Payment processing and notifications |
| 824 | Application Advice | Transaction status updates |
How to Enroll in Yankee Gas Services Company (Eversource Energy) EDI
- 01Confirm licensing as a Connecticut energy supplier with PURA
- 02Locate Eversource Gas EBT/EDI guides and request Connecticut-specific package
- 03Contact the Eversource Gas Supplier/EDI team at (800) 989-0900
- 04Execute a Trading Partner Agreement (TPA)
- 05Configure a connection method (VAN, direct, or SFTP)
- 06Complete EDI testing, then activate production enrollment
Rate Schedules & Tariff Analysis
Yankee Gas C&I bills separate regulated distribution (delivery) from gas commodity. Distribution is PURA-regulated and recovered via a fixed customer charge plus volumetric per-ccf charges, with riders for CAM, SER, and GSI. The November 2025 PURA Final Decision set the Nov 2025-Oct 2026 revenue requirement at $802.2M with a 9.32% allowed ROE. Because gas supply is deregulated, C&I customers can lower the commodity portion by contracting with a PURA-approved marketer.
Yankee Gas Services Company (Eversource Energy) Rate Schedule List
| Schedule | Applicability |
|---|---|
| Firm General (Commercial) Gas Distribution Service | Commercial firm-service gas customers |
| Firm Large General / Industrial Gas Distribution Service | Large C&I firm-service customers |
| Interruptible / Transportation Gas Service | Large industrials arranging their own commodity supply |
Yankee Gas Services Company (Eversource Energy) Rate Features & TOU Details
- Distribution (delivery) charges are PURA-regulated and uniform across competitive suppliers
- Gas commodity is competitive — C&I customers may choose a marketer
- Bills include CAM, SER, and GSI riders in addition to base delivery
- Firm vs. interruptible/transportation service options for large industrials
- Specific per-ccf rates are published only in the PURA-approved gas tariff book
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Yankee Gas Services Company (Eversource Energy) Rate Optimization Guide →Other Data Access Programs
ENERGY STAR Portfolio Manager Integration
Automated monthly sync of Eversource gas data into EPA ENERGY STAR Portfolio Manager for benchmarking and Connecticut compliance tracking.
- 01Create a Portfolio Manager account
- 02Connect Eversource as a data source and authorize with Eversource credentials
- 03Map meters to accounts
- 04Receive automated monthly data syncs
Property Management Gateway
Portal for landlords and property managers to manage gas/electric service across rental properties, including service start/stop and bill allocation.
- 01Open the Property Management Gateway
- 02Select Connecticut and Gas service
- 03Sign up or log in
- 04Add properties and manage service/billing
Limitations & Considerations
- ⚠Green Button / Connect My Data is not currently available for Connecticut gas service.
- ⚠Energy Profiler Online interval data requires an interval-recording meter and is a paid service ($50 one-time or $300/year per account).
- ⚠AMI smart-meter deployment in Connecticut is prioritized for electric; gas interval coverage is limited.
- ⚠Specific per-ccf C&I delivery rates are published only in the PURA-approved gas tariff book, not as simple posted figures.
- ⚠EDI/EBT guides have historically emphasized Massachusetts; Connecticut-specific guides may require direct request.
Yankee Gas Services Company (Eversource Energy) Data Access FAQ
Can a C&I customer in Connecticut choose their natural gas supplier?▾
Yes. Connecticut gas supply is competitively deregulated. Commercial and industrial customers may buy the gas commodity from a PURA-approved marketer or take Yankee Gas default supply, while Yankee Gas/Eversource always provides the regulated distribution service. Compare marketers via CT PURA at https://portal.ct.gov/pura/gas/gas.
How can a third party access a C&I customer's Yankee Gas usage data?▾
Three main paths: (1) UtilityAPI for OAuth-based programmatic billing/usage/interval access; (2) Energy Profiler Online (EPO) for 15/30-minute interval gas data ($50 one-time or $300/year per account); and (3) the Agency Portal for authorized representatives. EDI 867 transactions are also available to licensed suppliers.
What interval gas data is available for commercial accounts?▾
Accounts with interval-recording meters can obtain 15- or 30-minute interval consumption (plus hourly/daily summaries) through the Energy Profiler Online service, with 12-36 months of history typically available. Not all accounts have interval meters; contact Eversource to confirm meter eligibility.
Why did Yankee Gas delivery charges go up in late 2025?▾
On October 31, 2025 PURA issued a Final Decision setting Yankee Gas's Nov 2025-Oct 2026 revenue requirement at $802.2M — about 12% below the company's request — with the allowed ROE reduced to 9.32%. PURA estimated roughly a $15/month impact for an average 54-ccf customer. Delivery charges are regulated and apply regardless of your gas supplier.
Is Green Button available for Yankee Gas?▾
Green Button / Connect My Data is not currently confirmed for Yankee Gas Connecticut service. Eversource offers a Share Your Smart Meter Usage Data program in Massachusetts but not yet in Connecticut. For automated third-party access today, use UtilityAPI.
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