UNS Gas, Inc. Data Access Guide
UNS Gas, Inc. is a regulated natural gas distribution utility serving roughly 114,000 customers across Arizona under the UniSource Energy Services brand. A subsidiary of UNS Energy / Fortis Inc. (and sister company to Tucson Electric Power), it provides hourly AMI usage data through its My Account portal and authorizes third-party access via a Usage Data Release Form, under Arizona Corporation Commission regulation.
How to Get Your UNS Gas, Inc. Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| My Account Billing Portal | ✓ | — | Residential & C&I | Bills, payment history, usage | Monthly | HTML / PDF |
| My Energy Usage (AMI) | ✓ | — | AMI-metered customers | Hourly therm usage | ≤ 24 hours | HTML charts |
| Usage Data Release Form | ✓ | ✓ | All | Billing, usage, interval | 5–10 business days | PDF / custom extract |
| EDI (867/810) | ✓ | ✓ | Business / aggregators | Meter reads, invoices | Configurable | ANSI X12 |
| Consumption History Request | ✓ | ✓ | All | 12-month usage history | On request | Written / PDF |
Billing Data Access
UNS Gas customers access billing data through the UniSource Energy Services My Account portal and mobile app, with 24/7 access to current bills and up to 24 months of billing history. Third-party access requires a signed Usage Data Release Form submitted to UniSource.
What Data Is on Your UNS Gas, Inc. Bill
- Current bill and itemized charges (delivery, gas supply, energy efficiency, taxes)
- Up to 24 months of billing history
- Billed therm usage graph (current vs. prior 12 months)
- Payment history and account adjustments
- Meter read dates
How to Download UNS Gas, Inc. Bills (Business & Commercial)
- 01Register the business account in My Account using the service number from the bill
- 02Review itemized charges and the Billing Period Comparison chart
- 03Enroll in e-Bill to receive PDF statements by email
- 04For third-party access, file a Gas Usage Data Release Form (5–10 business days to process)
- 05Request a written Consumption History (first request free per calendar year) for longer baselines
How to Download UNS Gas, Inc. Bills (Residential)
- 01Go to https://www.uesaz.com/my-account/ and click Create an account
- 02Provide email, service number (from your bill) and ZIP code
- 03Create a password (8+ chars, upper/lower/number) and verify your email
- 04Log in at https://account.uesaz.com/MyAccount/Login
- 05View current bill, up to 24 months of history, and the billed therm usage graph
Third-Party Access to UNS Gas, Inc. Billing Data
Usage Data Release Form (Gas)
- 01Customer downloads the Gas Usage Data Release Form from the UES site
- 02Customer completes account info, the authorized third party, scope of data and authorization duration, then signs
- 03Submit by mail to P.O. Box 711, Tucson, AZ 85702-0711 or via the contact form
- 04Allow 5–10 business days; UniSource validates and releases data directly to the third party
- 05Consumption History fees (Fee #8) may apply after the first free request per calendar year
Consumption History Request
- 01Per Rules & Regulations, the customer (or authorized third party) may request consumption history
- 02Online via My Account is free and instant; a written statement of the prior 12 billing periods is provided free where reasonably ascertainable
- 03Third-party requests require written authorization (Usage Data Release Form)
- 04After the first free request per calendar year, the Standard Consumption History Request Fee (Fee #8) applies
Want to understand the charges on your bill?
See the UNS Gas, Inc. Rate Schedules & Tariff Guide →Interval Data & Smart Meters
UNS Gas has deployed AMI with automated wireless gas meters that capture hourly usage. Customers with newer meters can view hourly therm usage through the My Energy Usage feature in My Account, updated at least every 24 hours.
How to Download UNS Gas, Inc. Interval Data via Green Button
- 01UNS Gas does not offer Green Button or Green Button Connect My Data
- 02View hourly usage in My Account > My Energy Usage; data refreshes at least every 24 hours
- 03Export options are limited to on-screen graphs and printing; no CSV/Excel download is documented
- 04For data files, file a Usage Data Release Form or request a Consumption History extract
- 05Customers with older meters may need a meter upgrade to access hourly data
Interval data is essential for rate comparison and TOU analysis.
See which UNS Gas, Inc. rate schedule is best for your usage pattern →Third-Party API Access
UNS Gas does not publish a public RESTful API or formal Share My Data program. Third parties obtain data after the customer files a Usage Data Release Form; data is then delivered via manual extracts (or EDI where arranged).
How to Register as a UNS Gas, Inc. API Vendor
- 01Establish business credentials as an energy service provider
- 02Have each customer complete and submit the Gas Usage Data Release Form
- 03Allow 5–10 business days for UniSource validation
- 04Receive data extracts from UniSource referencing the authorization
- 05For automated feeds, inquire with UniSource about EDI (867/810) trading-partner setup
EDI (Electronic Data Interchange)
Supported UNS Gas, Inc. EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 867 | Product Transfer and Resale Report | Meter reading / usage data delivery. |
| 810 | Invoice | Billing / invoice data. |
| 820 | Payment Order / Remittance Advice | Payment information. |
| 814 | General Request, Response or Confirmation | Application for / changes to utility service. |
| 997 | Functional Acknowledgment | Confirms receipt of EDI transmissions. |
How to Enroll in UNS Gas, Inc. EDI
- 01Determine the transaction types needed (e.g., 867 meter reads, 810 invoices) and confirm ANSI X12 capability
- 02Contact UniSource at 1-877-837-4968 to request EDI enrollment and trading-partner requirements
- 03Execute an EDI Trading Partner Agreement covering standards, security and connection method
- 04Choose a connection method: VAN or direct AS2/SFTP
- 05Obtain technical specifications (ANSI X12 V4010/V5010), complete testing, then go live
Rate Schedules & Tariff Analysis
UNS Gas business bills combine a fixed basic service charge, a per-therm base delivery rate, and the pass-through Purchased Gas Adjustor. The key tradeoff is the GGSVS-to-GILVS step: GILVS more than halves the base delivery rate (from $0.3134 to $0.1620/therm) in exchange for a much higher $285.73 basic charge, so it pays off only above a high monthly volume. Large-volume customers also avoid the LFCR rider. Customers who can procure their own gas may use T-1/T-2 transportation or the NSP to bypass the PGA commodity component.
UNS Gas, Inc. Rate Schedule List
| Schedule | Applicability |
|---|---|
| GGSVS – Small Volume Commercial | $28.32 basic + $0.3134/therm base delivery (~$0.7914 all-in). |
| GILVS – Large Volume Industrial/Commercial | $285.73 basic + $0.1620/therm base delivery (~$0.6385 all-in); no LFCR. |
| T-1 / T-2 Transportation | Distribution-only delivery for customer-procured gas. |
| NSP – Negotiated Sales Program | Negotiated large-customer sales; exempt from the PGA. |
UNS Gas, Inc. Rate Features & TOU Details
- Two-part rate: fixed basic charge plus per-therm delivery
- GILVS base delivery (~$0.162/therm) is roughly half of GGSVS (~$0.313/therm) but with a $285.73 basic charge
- Purchased Gas Adjustor (PGA) passes gas commodity through at cost (~$0.4765/therm as of Mar 2026)
- Large-volume / NSP / transport customers are exempt from LFCR (and NSP from the PGA)
- Rates set by the ACC; ARAM provides annual formula-based adjustments
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full UNS Gas, Inc. Rate Optimization Guide →Other Data Access Programs
Business Energy Solutions
Commercial energy efficiency programs offering rebates for efficient equipment, plus energy usage analysis to identify savings (commercial, school, and industrial tracks; VCx and Trade Ally networks).
- 01Visit the Business Energy Solutions page or call 1-877-837-4968
- 02Identify the applicable program (commercial, school, industrial, fast checkout)
- 03Work with a Trade Ally contractor and submit rebate applications
- 04Receive energy usage analysis to target savings
Safety Net Program
Lets a customer designate a friend, family member or agency to receive copies of monthly bills as payment reminders; the designee cannot access account details or make changes.
- 01Visit the Safety Net page or call 1-877-837-4968
- 02Designate a contact to receive bill-copy reminders
- 03Designee receives a copy of the monthly bill (no account access)
Consumption History Data
Per the Rules & Regulations, customers can obtain consumption history online (free) or as a written statement of the prior 12 billing periods at no charge where reasonably ascertainable; fees apply after the first request per year.
- 01Access consumption history free in My Account
- 02Or call 1-877-837-4968 to request a written 12-month statement
- 03Third parties request via the Usage Data Release Form
Limitations & Considerations
- ⚠No public RESTful API or formal Share My Data program.
- ⚠No Green Button Download My Data or Connect My Data.
- ⚠EDI capabilities exist but are not publicly documented; setup requires direct coordination with UniSource.
- ⚠Third-party access is a manual paper/email process with 5–10 business day processing.
- ⚠No CSV/Excel export of usage data; primarily HTML viewing and PDF bills.
- ⚠Hourly interval data requires an AMI-capable meter; older meters may need replacement.
UNS Gas, Inc. Data Access FAQ
How can a C&I customer or consultant obtain UNS Gas hourly usage data?▾
Customers with AMI gas meters can view hourly therm usage in My Account under My Energy Usage, refreshed at least every 24 hours. There is no CSV export or Green Button, so for data files a consultant should have the customer file a Gas Usage Data Release Form (5–10 business days) or request a Consumption History extract. Business aggregators can also arrange EDI 867/810 feeds directly with UniSource.
Does UNS Gas support Green Button or a public API?▾
No. UNS Gas does not offer Green Button, Green Button Connect My Data, or a public RESTful API. Third-party data access is a manual, form-based process via the Usage Data Release Form, and automated delivery is only available through arranged EDI (ANSI X12) trading-partner connections.
What commercial and industrial gas rate schedules does UNS Gas offer?▾
UNS Gas's business schedules are GGSVS (Small Volume Commercial Service) and GILVS (Large Volume Industrial/Commercial Service, including the GTLVS/GTNILVS transport variants), plus T-1 and T-2 transportation rates and the Negotiated Sales Program (NSP). As of the March 1, 2026 Statement of Rates, GGSVS carries a $28.32 basic service charge with a $0.3134/therm base delivery rate (about $0.7914/therm all-in including gas cost), and GILVS large-volume service carries a $285.73 basic charge with a $0.1620/therm base delivery rate (about $0.6385/therm all-in).
Who regulates UNS Gas rates and is there supplier choice?▾
UNS Gas (entity license G-04204A) is regulated by the Arizona Corporation Commission; there is no competitive retail gas supplier choice. New base rates took effect March 1, 2026 under ACC Decision No. 81653, and UNS Gas became the first Arizona utility to implement an Annual Rate Adjustment Mechanism (ARAM). Gas commodity costs pass through at cost via the Purchased Gas Adjustor (PGA).
How can a business lower its UNS Gas bill?▾
Because gas bills combine a fixed basic service charge with a per-therm delivery and gas-cost component, large users benefit from qualifying for the large-volume GILVS schedule (much lower per-therm delivery: ~$0.162 vs ~$0.313 base) once volumes justify the higher $285.73 basic charge. Evaluate transportation service (T-1/T-2) or the Negotiated Sales Program if you can procure your own gas, and use hourly My Energy Usage data plus Business Energy Solutions rebates to cut consumption.
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