Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Data Access Guide
Southern Indiana Gas & Electric Company (SIGECO), operating as CenterPoint Energy Indiana South (formerly Vectren South), is an investor-owned utility serving roughly 150,000 electric and 110,000 gas customers across southwestern Indiana. Rates are regulated by the Indiana Utility Regulatory Commission (IURC); Indiana is a vertically integrated, non-shopping market, so there is no retail supplier choice for electricity.
How to Get Your Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| My Account Portal | ✓ | ✓ | Residential & small commercial | Billing, monthly usage | Daily/near-real-time billing | PDF, on-screen |
| CES Online | ✓ | — | Large commercial & industrial | Invoices, historical usage & demand | Batch | Portal download |
| UHIT API | — | ✓ | Authorized retailers/consultants | Usage, demand, interval (where available) | API query | XML/JSON |
| Energy Data Portal | ✓ | ✓ | Commercial & multifamily | Whole-building usage; ENERGY STAR | Monthly | CSV, Portfolio Manager |
| Letter of Authorization | ✓ | ✓ | All | Billing, usage, meter data | 5-10 business days |
Billing Data Access
CenterPoint Energy Indiana South provides online billing access through its unified My Account portal (upgraded July 2024), with a separate CES Online portal for large commercial and industrial customers. Up to 24 months of billing and payment history is available.
What Data Is on Your Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Bill
- Current and historical billing statements
- Payment history
- Monthly electric consumption (kWh)
- Account and service-address details
- Demand and interval data for C&I via CES Online / data requests
How to Download Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Bills (Business & Commercial)
- 01Complete the CES Online Access Request Form at info.centerpointenergy.com/secure/CES
- 02Provide customer identification numbers from a recent invoice
- 03Receive credentials for multi-account access
- 04Open invoices and historical usage/demand data; enroll in paperless billing and email notifications
- 05Use Summary Billing (free, 3+ accounts) to consolidate multiple premises onto one bill
How to Download Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Bills (Residential)
- 01Visit centerpointenergy.com (Indiana) and click My Account / Sign In
- 02Select Register Now and enter name, account number, service address, and email
- 03Create a username and password (8-20 chars, at least one number and one letter)
- 04Verify account info and complete registration
- 05Open the Billing section to view and download statements
Third-Party Access to Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Billing Data
Authorized User (My Account)
- 01Log into My Account
- 02Navigate to Manage User Access / Add Authorized User
- 03Enter the third party's name and email
- 04Select permissions (view billing, payments, usage)
- 05Third party accepts the emailed invitation
Letter of Authorization (manual)
- 01Customer submits written request to CenterPoint Regulatory and Rates Department
- 02Specify third party, data types, and time period with signature
- 03CenterPoint verifies identity and compiles data
- 04Data delivered (typically PDF) in 5-10 business days
Want to understand the charges on your bill?
See the Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
CenterPoint Indiana South completed AMI / smart meter deployment in 2017-2018, covering roughly 95% of the electric territory. Meters support 15-minute interval capability, but residential customers can typically only view monthly usage through My Account. Commercial and industrial customers can request interval/demand data via CES Online, the Usage History Inquiry Tool (UHIT), or a data request.
How to Download Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Interval Data via Green Button
- 01Green Button is not implemented for Indiana South
- 02C&I customers request interval data via CES Online or UHIT instead
- 03Submit a Historical Usage / Letter of Authorization request for granular data
Interval data is essential for rate comparison and TOU analysis.
See which Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) rate schedule is best for your usage pattern →Third-Party API Access
CenterPoint offers UHIT (a programmatic usage-history API) and the CRIP portal, primarily designed for deregulated Texas markets but available company-wide for authorized third parties. For Indiana, functionality is more limited; access requires customer Letters of Authorization. The Energy Data Portal supports whole-building benchmarking and ENERGY STAR Portfolio Manager integration for commercial/multifamily properties.
Available Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| Historical usage inquiry | UHIT API (endpoint provided on credentialing) | GET | XML or JSON (per API documentation) |
How to Register as a Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) API Vendor
- 01Confirm eligibility (competitive retailer, ESP, licensed consultant, or approved aggregator)
- 02Email cr.support@centerpointenergy.com with company info and use case
- 03Submit business registration, Tax ID/DUNS, and Letters of Authorization
- 04Receive API endpoint and credentials
- 05Implement per the UHIT API User Guide and Connectivity Profile
EDI (Electronic Data Interchange)
How to Enroll in Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) EDI
- 01Not applicable — Indiana has no deregulated retail electric market
- 02No 814/810/867 retail EDI transactions are exchanged for Indiana South
Rate Schedules & Tariff Analysis
C&I bills under SIGECO are driven by demand ($/kW) charges and fuel/tracker riders layered on energy ($/kWh) charges. Following the 2025 rate case, CAC noted residential cost-shift concerns; large industrial customers (SABIC, Toyota, Marathon, CountryMark) were settlement parties. Because exact per-schedule charges adjust with riders, customers should confirm current values in the tariff book and on recent bills.
Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Rate Schedule List
| Schedule | Applicability |
|---|---|
| Demand General Service (DGS) | Demand-metered commercial customers. |
| Large Power Service (LP) | Large industrial demand customers. |
| High Load Factor Service (HLF) | High-load-factor industrial customers. |
Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Rate Features & TOU Details
- Demand-based billing for DGS/LP/HLF
- Fuel Adjustment Clause and TDSIC tracker riders
- Two-step increase (2025/2026) from Cause 45990
- High load factor rewarded under HLF
- Gas Transportation option for large gas C&I
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Rate Optimization Guide →Other Data Access Programs
Summary Billing
Consolidates 3 or more CenterPoint accounts onto a single bill with one payment — useful for property managers and multi-site C&I customers. No charge.
- 01Confirm you have 3+ CenterPoint accounts
- 02Submit the Summary Billing enrollment form
- 03Accounts are consolidated onto one statement
Energy Data Portal / ENERGY STAR Benchmarking
Whole-building energy data retrieval and automated monthly transfer to ENERGY STAR Portfolio Manager for benchmarking commercial and multifamily properties.
- 01Register an account at the Energy Data Portal
- 02Add service addresses and confirm meters
- 03Submit a whole-building data request and obtain owner authorization
- 04Configure automated transfers to Portfolio Manager
Limitations & Considerations
- ⚠No Green Button (DMD or CMD) for Indiana South.
- ⚠Residential portal exposes monthly usage only; interval data requires a C&I data request.
- ⚠No public developer portal; UHIT/CRIP documentation requires a request to cr.support@centerpointenergy.com.
- ⚠CRIP/UHIT functionality in Indiana is less developed than in CenterPoint's deregulated Texas markets.
- ⚠No retail electric supplier choice (regulated market); no retail EDI.
- ⚠Per-account Letters of Authorization required for all third-party data access.
Southern Indiana Gas & Electric Co. (CenterPoint Energy Indiana South) Data Access FAQ
Can my energy consultant pull our facility's interval and demand data?▾
Yes, with authorization. Enroll the account in CES Online for invoice and historical usage/demand data, or have an authorized retailer/consultant use the UHIT API. Each account requires a customer Letter of Authorization. Indiana functionality is more limited than CenterPoint's Texas markets, so allow lead time and contact cr.support@centerpointenergy.com.
Is Green Button available for our Indiana facilities?▾
No. CenterPoint Energy Indiana South does not implement Green Button Download My Data or Connect My Data. For programmatic data, use UHIT or the Energy Data Portal under a Letter of Authorization, or export from CES Online.
Can we choose a competitive electricity supplier in Indiana?▾
No. Indiana is a vertically integrated, regulated market with no retail electric choice. All electric customers in the territory are served on IURC-approved bundled tariffs. Large natural gas customers may, however, elect Gas Transportation service to buy their own gas commodity.
How much interval-meter history can we get for a load study?▾
My Account exposes up to 24 months of monthly usage. For 15-minute interval and demand data, submit a Historical Usage request through CES Online or UHIT with a Letter of Authorization; longer histories may be available on request, typically delivered in 5-10 business days.
What rate schedules apply to commercial and industrial accounts?▾
Under the SIGECO electric tariff (I.U.R.C. No. E-14), C&I service is taken on Small General Service (SGS), Demand General Service (DGS), Large Power (LP), and High Load Factor (HLF) schedules. Classification depends on demand and load factor; see the tariff book for current charges.
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