Indiana Michigan Power Data Access Guide
Indiana Michigan Power (I&M), an AEP subsidiary, serves about 615,000 electric customers across Indiana and southwestern Michigan. Michigan customers have full Green Button Connect My Data access via UtilityAPI, while Indiana customers rely on the online portal and authorization letters for data access.
How to Get Your Indiana Michigan Power Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| Online Billing Portal | ✓ | ✓ | Residential, C&I (IN & MI) | Bills (13mo), payment history | Real-time | PDF, HTML |
| Energy Usage Portal | ✓ | — | All metered (IN & MI) | 15-min interval, trends | Daily | Web portal, app |
| Green Button Connect (UtilityAPI) | ✓ | ✓ | Michigan only | Bills, intervals, meter metadata | Daily | JSON, XML |
| EDI (AES market) | — | ✓ | Michigan AES only | Enrollment, usage, billing | Batch | EDI 4010 |
Billing Data Access
I&M provides an online customer portal where residential and business customers can view payment history, view line-item charges, and download bills as PDF. Up to 13 months of billing history is available.
What Data Is on Your Indiana Michigan Power Bill
- Current charges
- Previous statements (13 months)
- Payment history
- Usage cost breakdown
- Due dates and payment status
How to Download Indiana Michigan Power Bills (Business & Commercial)
- 01Visit https://www.indianamichiganpower.com/business/ and choose Log in or register
- 02Complete business account registration and verify business details
- 03Access energy-management tools and billing
- 04Authorize third parties via a Letter of Authorization (LOA) when needed
How to Download Indiana Michigan Power Bills (Residential)
- 01Go to https://www.indianamichiganpower.com/account/register
- 02Provide email plus phone, address, or account number and verify email
- 03Create User ID and password
- 04Log in and open Bills & Payments
- 05Open a bill and download as PDF (up to 13 months history)
Third-Party Access to Indiana Michigan Power Billing Data
Business Third-Party Authorization (LOA)
- 01Complete the IM Business 3rd Party Authorization form
- 02Specify the information and transactions the third party may access
- 03Submit via email inforelease@aep.com, fax 1-800-281-3916, or mail to AEP, ATTN: Business Operations, 1 AEP Way, Hurricane, WV 25526
- 04Customer keeps a copy; authorization may be revoked in writing at any time
Want to understand the charges on your bill?
See the Indiana Michigan Power Rate Schedules & Tariff Guide →Interval Data & Smart Meters
I&M has deployed Advanced Metering Infrastructure (AMI) across Indiana and Michigan, collecting usage at 15-minute intervals. Customers view interval usage through the online Your Energy Usage portal; there is no direct CSV/XML export from the portal.
How to Download Indiana Michigan Power Interval Data via Green Button
- 01Michigan customers only: visit https://greenbutton.indianamichiganpower.com/
- 02Choose Customers, then Browse third party directory
- 03Select a provider and log in with utility account credentials (no MFA required)
- 04Review the requested data and click Authorize (access is instant)
- 05Manage or revoke authorizations under My approved companies
Interval data is essential for rate comparison and TOU analysis.
See which Indiana Michigan Power rate schedule is best for your usage pattern →Third-Party API Access
Third parties access authorized customer data through UtilityAPI, I&M's Green Button Connect integration partner. Registration requires pre-registration with I&M and sandbox testing before live mode. Currently supports Michigan customers only.
Available Indiana Michigan Power API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| Retrieve authorized customers and data | UtilityAPI REST (utility code AEPIM) | GET | JSON, Green Button XML |
How to Register as a Indiana Michigan Power API Vendor
- 01Register your organization at https://utilityapi.com/ (starts in sandbox)
- 02Email michiganchoiceoperations@aep.com to request pre-registration and a client_id
- 03Test integration against sandbox/test accounts
- 04Request live-mode activation (review takes ~1-4 weeks)
- 05Have Michigan customers authorize you via the Green Button directory
- 06Retrieve data via UtilityAPI dashboard, OAuth flow, or JSON API
EDI (Electronic Data Interchange)
EDI is available for Alternative Electric Suppliers (AES) in the Michigan competitive choice market only. Indiana is not deregulated and has no AES/EDI program. AES enrollment requires an MPSC license, PJM membership, EDI testing, and use of the Business Partner Portal (BPP).
Supported Indiana Michigan Power EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 810 | Invoice | Billing/invoice data |
| 820 | Payment Order | Payments remitted |
| 867 | Monthly Usage | Consumption data submission |
| 997 | Functional Acknowledgement | Transaction confirmation |
How to Enroll in Indiana Michigan Power EDI
- 01Obtain MPSC electric supplier license and PJM membership
- 02Review the I&M Supplier Handbook (EDI and Business Partner Portal chapters)
- 03Submit the AES registration package with the $100 fee to Michigan Choice Operations
- 04Complete EDI communication testing (ANSI X12 4010) over the AT&T Easylink VAN
- 05Receive Business Partner Portal/BOLT credentials and move to production
Rate Schedules & Tariff Analysis
I&M C&I rates are set by the IURC through base-rate cases plus periodic tracker adjustments. The May 2024 base-rate order (Cause 45933) raised revenue by ~$56.9M; trackers (fuel, environmental, DSM, PJM transmission, resource adequacy) drive the more frequent changes and make up a meaningful share of the bill. Demand-metered C&I classes are dominated by billing-demand ($/kW) charges, so load factor and peak management materially affect cost.
Indiana Michigan Power Rate Schedule List
| Schedule | Applicability |
|---|---|
| General Service (G.S.) | Small/mid commercial |
| Large General Service (L.G.S.) | Larger commercial demand-metered |
| Industrial Power (I.P.) | Large industrial |
| Large Load / Data Center | >70 MW site / >150 MW aggregate |
Indiana Michigan Power Rate Features & TOU Details
- Bundled regulated service (no Indiana retail choice)
- Customer + energy + demand charge structure for C&I
- Multiple trackers (FAC, ECR, DSM, PJM, RAR) adjust rates semi-annually/annually
- New large-load/data-center tariff for >70 MW loads (2025)
- Separate Indiana (IURC #20) and Michigan (MPSC #18) tariff books
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Indiana Michigan Power Rate Optimization Guide →Other Data Access Programs
Business Partner Portal (BPP)
Web portal for Michigan AES and brokers to access pre-enrollment customer lists, usage and billing data, rate codes, and enrollment management.
- 01Email michiganchoiceoperations@aep.com to request BPP access
- 02Receive BOLT credentials; designate an AES Broker
- 03Broker assigns roles and grants user access
- 04Log in to browse customer data and submit enrollment transactions
Limitations & Considerations
- ⚠Indiana customers do not have access to Green Button / Green Button Connect interval data programs.
- ⚠Indiana is not deregulated; no AES choice program, EDI, or Business Partner Portal in Indiana.
- ⚠No direct CSV/XML export from the Your Energy Usage portal.
- ⚠Green Button Connect (Michigan) provides no bill PDFs or accounting data.
- ⚠No dedicated public developer API for customer data; UtilityAPI is the primary programmatic path.
Indiana Michigan Power Data Access FAQ
Can a C&I customer in Indiana shop for a competitive electricity supplier?▾
No. Indiana is a fully regulated market with no retail choice. I&M's Indiana customers take bundled service under IURC-approved tariffs. Only I&M's Michigan service area has a (capped) Alternative Electric Supplier choice program.
How do C&I customers get 15-minute interval data programmatically?▾
Michigan C&I customers can authorize a third party through Green Button Connect via UtilityAPI for automated 15-minute interval, billing, and meter data. Indiana customers can view interval data in the Your Energy Usage portal but have no Green Button Connect or direct export; bulk data requires a Letter of Authorization.
What rate schedules apply to commercial and industrial accounts?▾
C&I accounts typically take General Service (G.S.), Large General Service (L.G.S.), or Industrial Power (I.P.), plus EV and large-load options. Demand-metered classes carry significant billing-demand ($/kW) charges. Exact charges are in the Indiana tariff book (IURC No. 20).
What is the new large-load tariff?▾
In February 2025 the IURC approved (Cause No. 46097) a modified industrial tariff for new or expanding loads above 70 MW at one location or 150 MW in aggregate, designed to serve data centers and other very large loads with minimum-take and contract-term provisions.
How far back does billing and usage history go online?▾
The online portal provides up to 13 months of billing and usage history. Smart-meter interval retention beyond that varies; contact I&M customer service for longer histories.
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