Northern Utilities, Inc. d/b/a Unitil (Maine) Data Access Guide

Northern Utilities, Inc. d/b/a Unitil distributes natural gas to roughly 35,400 customers in Maine's Bangor and Lewiston areas as part of Unitil Corporation. Customers download up to 24 months of billing history as CSV through the MyUnitil portal, while licensed competitive gas suppliers pull usage via ANSI X.12 EDI (867) under Maine EBT standards and PUC Chapter 322 data-transfer rules; gas interval data and Green Button are not yet available.

Maine · Investor-Owned Utility·35,400 customers·Last updated May 28, 2026

How to Get Your Northern Utilities, Inc. d/b/a Unitil (Maine) Data: All Access Methods

Method1st Party3rd PartyCustomer TypesData TypesLatencyFormat
MyUnitil PortalResidential and commercial gas customersBilling, payment, monthly usageMonthlyWeb / CSV / PDF
EDI 867 (Maine EBT)Licensed competitive gas suppliersHistorical usage (12 months), enrollment, invoicesNoon daily processing cycleANSI X.12 EDI
Maine PUC Ch. 322 § 9 Written RequestSuppliers/brokers with customer authorizationCustomer data, usage, billing (12 months)5-10 business daysStandard format per request
Manual Business RequestBusiness customers and authorized partiesHistorical usage analysis, custom reportsOn requestReport / email
01

Billing Data Access

Northern Utilities offers billing access through the MyUnitil portal and mobile app, with CSV downloads covering up to 24 months across multiple linked accounts. Competitive gas suppliers and brokers obtain customer usage and billing information under Maine PUC 65-407 C.M.R. Chapter 322 § 9 with customer authorization; the utility charges incremental cost and typically delivers within 5-10 business days.

What Data Is on Your Northern Utilities, Inc. d/b/a Unitil (Maine) Bill

  • Monthly bills (service, distribution, cost of gas, regulatory adjustment charges)
  • Billing history (up to 24 months)
  • Payment history
  • Monthly billed usage with weather overlays
  • Multi-account data in a single file

How to Download Northern Utilities, Inc. d/b/a Unitil (Maine) Bills (Business & Commercial)

  1. 01Register the business account(s) in MyUnitil with the TIN verification
  2. 02Link multiple accounts to a single profile
  3. 03Use the Download tool on Bills & Payments to export billing, payment, or usage history for all accounts in one CSV
  4. 04For custom historical analysis, contact Business Customer Services (businessenergy@unitil.com)
  5. 05For supplier-side data, route requests through the Maine PUC Ch. 322 § 9 process

How to Download Northern Utilities, Inc. d/b/a Unitil (Maine) Bills (Residential)

  1. 01Visit https://myaccount.unitil.com/ and click Sign Up Now
  2. 02Register with account number, name, email, and last 4 of SSN/TIN
  3. 03Log in and open Bills & Payments
  4. 04View monthly bills and up to 24 months of history
  5. 05Scroll to the bottom, click Download, select account(s), choose Billing History and a date range
  6. 06Download the CSV file

Third-Party Access to Northern Utilities, Inc. d/b/a Unitil (Maine) Billing Data

Supplier/broker data request (Maine PUC Ch. 322 § 9)

  1. 01Obtain a Maine PUC competitive gas supplier license and register with Northern Utilities
  2. 02Submit a written request with customer account numbers, name, service address, data needed, and time period (up to 12 months)
  3. 03Include the customer's signed authorization (or supply-contract authorization)
  4. 04Reference Maine PUC 65-407 C.M.R. ch. 322, § 9 authority
  5. 05Receive data in standard format within ~5-10 business days; utility charges incremental cost
CSV (MyUnitil download)EDI X.12 (supplier transactions)PDF (bills)

Want to understand the charges on your bill?

See the Northern Utilities, Inc. d/b/a Unitil (Maine) Rate Schedules & Tariff Guide →

02

Interval Data & Smart Meters

As a gas-only utility in Maine, Northern Utilities has no widespread interval-capable metering; gas customers receive monthly billing data without 15/30-minute or hourly granularity. Unitil Corporation is a Green Button Alliance member and is exploring a load-settlement platform using hourly interval data, with Green Button Connect My Data testing invited via Community Power New Hampshire, but no Maine gas deployment date is announced.

Meter Technology
Traditional gas metering; no interval-capable advanced meters deployed for Maine gas distribution.
Gas Granularity
Monthly billed usage only; no daily or interval data for gas customers

How to Download Northern Utilities, Inc. d/b/a Unitil (Maine) Interval Data

  1. 01Log into MyUnitil at https://myaccount.unitil.com/
  2. 02View monthly billed usage with weather overlays
  3. 03Use the Download tool for usage history CSV (monthly granularity)
  4. 04For supplier interval requests (when applicable), use the Maine Standard Interval Data Request Form with customer authorization
  5. 05Monitor Unitil announcements for future Green Button availability

Interval data is essential for rate comparison and TOU analysis.

See which Northern Utilities, Inc. d/b/a Unitil (Maine) rate schedule is best for your usage pattern →

03

Green Button Access

Download My Data

Unitil Corporation is a Green Button Alliance member and electric customers may access Green Button data, but gas customer data is NOT currently available through Green Button in Maine.

Available To
Not available to Maine gas customers

Connect My Data

Green Button Connect My Data is in development/testing; Unitil was invited to collaborate with Community Power New Hampshire on CMD testing. When live, expect OAuth 2.0 authorization and ESPI XML.

API Standard
ESPI / Green Button Connect My Data (planned)
Available To
Planned; no Maine gas launch date

04

Third-Party API Access

Northern Utilities publishes no public API or developer portal. Third-party access runs through the Maine regulatory framework: licensed competitive gas suppliers, brokers, and aggregators request customer identity, billing, and usage data under Maine PUC 65-407 C.M.R. ch. 322 § 9 with customer authorization, or via EDI 867 transactions. No utility-run Share My Data portal exists; consultants typically partner with a licensed supplier or use customer authorization forms. Nectar provides API access to utility billing and interval data — see docs.nectarclimate.com.

Program
Competitive Gas Supply Supplier Data Access (Maine PUC Ch. 322)
Auth Method
Maine PUC supplier license + customer authorization (written or in supply contract); no OAuth

How to Register as a Northern Utilities, Inc. d/b/a Unitil (Maine) API Vendor

  1. 01Obtain a Maine PUC competitive gas supplier license
  2. 02Register with Northern Utilities via the supplier resources page
  3. 03Obtain customer authorization (supply contract clause or signed form)
  4. 04Submit data requests under Ch. 322 § 9 or via EDI 867
  5. 05Cover incremental data-provision costs charged by the utility

05

EDI (Electronic Data Interchange)

Northern Utilities supports ANSI X.12 EDI under Maine EBT (Electronic Business Transactions) standards, developed under PUC Docket 98-522. Supplier transactions received by noon each working day are processed and answered by noon the next business day; validated usage transmits to suppliers on the same cadence. Connection options include VAN or direct X.12, and Unitil provides supplier training decks covering business processes, load profiling and settlement, and EBT/EDI.

Supported Northern Utilities, Inc. d/b/a Unitil (Maine) EDI Transaction Sets

CodeNamePurpose
814Service AgreementCustomer enrollment, start/stop service
820PaymentPayment and adjustment handling
867Historical UsageRequest and delivery of up to 12 months of historical usage data
810InvoiceSupplier billing to competitive marketers

How to Enroll in Northern Utilities, Inc. d/b/a Unitil (Maine) EDI

  1. 01Obtain a Maine PUC license as a competitive gas supplier
  2. 02Complete supplier registration at unitil.com/suppliers/energy-supplier-resources (business info, contacts, gas allowance, service agreement)
  3. 03Establish the EDI connection via VAN or direct X.12 and obtain Unitil's EDI specifications
  4. 04Implement Maine EBT standards for 814/820/867/810 and test in the utility test environment
  5. 05Attend supplier training (Business Processes, Load Profiling & Settlement, Regulatory Overview, EBT/EDI, AMI Hourly Customer Data)
  6. 06Go live on the production EDI operating schedule (noon daily processing cycle)

06

Rate Schedules & Tariff Analysis

Northern Utilities' Maine gas rate summary (updated annually) covers distribution charges, cost of gas adjustments, energy efficiency program costs (EERA), environmental remediation charges (ERC), and residential low-income program costs (RLIP). Supply is shoppable, so C&I customers can compare competitive supplier offers against the utility cost of gas.

Northern Utilities, Inc. d/b/a Unitil (Maine) Rate Features & TOU Details

  • Distribution and gas-supply charges unbundled; supply shoppable from licensed competitive suppliers
  • Annual rate summary publication with cost of gas adjustments
  • EERA, ERC, and RLIP rider charges on top of base distribution
  • Most recent rate case: Maine PUC Docket 2019-00092

For a deeper analysis including cost optimization strategies and historical rate trends:

Read the full Northern Utilities, Inc. d/b/a Unitil (Maine) Rate Optimization Guide →

07

Other Data Access Programs

MyUnitil Multi-Account CSV Export

Download billing, payment, or usage history for all linked accounts in a single CSV file — useful for portfolio managers with multiple Maine gas accounts.

  1. 01Link all accounts to one MyUnitil profile
  2. 02Open Bills & Payments and click Download
  3. 03Select all accounts, data type, and date range (up to 24 months)
  4. 04Export the combined CSV

Green Button Connect My Data (in development)

Unitil is testing Green Button Connect My Data in collaboration with Community Power New Hampshire; when implemented, third-party access via OAuth 2.0 and ESPI XML is expected.


08

Limitations & Considerations

  • No interval data (15/30-minute or hourly) for Maine gas customers; monthly billing data only.
  • No public API or developer portal; MyUnitil data must be downloaded manually.
  • Green Button / ESPI not yet available for gas customers; CMD is in development with no announced Maine timeline.
  • Supplier data access capped at 12 months of history and incurs incremental cost fees.
  • No aggregator partnerships (Urjanet, Arcadia, PowerAdvocate) or Share My Data portal.

09

Northern Utilities, Inc. d/b/a Unitil (Maine) Data Access FAQ

How do C&I customers download billing and usage data from Northern Utilities (Unitil) in Maine?

Register at https://myaccount.unitil.com/, open Bills & Payments, and use the Download tool to export up to 24 months of billing, payment, or usage history as CSV. Multiple accounts can be linked to one profile and exported in a single file, which makes portfolio-level analysis straightforward.

Is interval data available for Maine gas accounts?

No. Northern Utilities has not deployed interval-capable meters for Maine gas distribution, so only monthly billed usage is available. Unitil is exploring hourly interval load settlement and Green Button Connect My Data, but no Maine gas timeline has been announced.

How do competitive gas suppliers get customer usage data?

Licensed suppliers register with Northern Utilities, then request data either via written request under Maine PUC 65-407 C.M.R. ch. 322 § 9 (with customer authorization, up to 12 months, typically 5-10 business days, incremental cost charged) or via EDI 867 Historical Usage transactions under Maine EBT standards on the noon daily processing cycle.

Does Northern Utilities support EDI, and what transactions are available?

Yes. Northern Utilities follows Maine EBT standards using ANSI X.12: 814 (enrollment/service agreement), 820 (payments), 867 (historical usage), and 810 (supplier invoices). Suppliers connect via VAN or direct X.12 after PUC licensing, registration, testing, and Unitil supplier training.

How can an energy management platform integrate Northern Utilities data without an API?

There is no public API. Practical paths are: scheduled MyUnitil CSV exports by the customer, partnering with a licensed competitive supplier who pulls data via EDI/Ch. 322, or direct customer-authorized data requests to the utility. Monitor Unitil's Green Button Connect My Data development for a future standardized ESPI/OAuth channel.

Can Maine customers shop for a competitive gas supplier?

Yes. Maine's gas supply market is competitive: Northern Utilities remains the regulated distributor while licensed suppliers compete for the commodity. Suppliers enroll customers via 814 EDI transactions; the Maine PUC (maine.gov/puc) licenses suppliers and oversees the market.

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