AES Ohio (Dayton Power & Light) Data Access Guide
AES Ohio, formerly Dayton Power & Light, is an investor-owned electric utility serving about 540,000 customers across West Central Ohio. It offers the MyAES portal with 24 months of billing history, 15-minute Green Button interval data from its AMI rollout, EDI for suppliers, and the CRES Business Partner Portal in Ohio's deregulated generation market.
How to Get Your AES Ohio (Dayton Power & Light) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| MyAES Online Portal | ✓ | — | All | Billing | Monthly | PDF/HTML |
| Green Button Download | ✓ | ✓ | AMI customers | 15-min interval | Daily | XML/CSV |
| Green Button Connect | ✓ | ✓ | AMI customers | Interval | Near real-time | API/XML |
| CRES Business Partner Portal | — | ✓ | CRES/suppliers | Bills, usage, interval | Varies | Flat file/XML/CSV |
| EDI (814/810/867/820) | — | ✓ | Suppliers | Supplier transactions | Daily | X12 |
Billing Data Access
AES Ohio provides online billing data access through the MyAES customer portal, modernized with a new CIS in 2024. Customers view current and historical bills, itemized charges, and monthly usage, with up to 24 months of history.
What Data Is on Your AES Ohio (Dayton Power & Light) Bill
- Monthly bill (current and historical)
- Itemized charges by category
- Monthly energy consumption (kWh)
- Estimated/projected usage
- Payment history
How to Download AES Ohio (Dayton Power & Light) Bills (Business & Commercial)
- 01Create or log into MyAES at https://myprofile.aes-ohio.com
- 02Select View and Pay Your Bill
- 03Open Billing History for up to 24 months of bills
- 04Download bills as PDF or view as HTML
- 05Add additional AES Ohio service accounts to the profile as needed
How to Download AES Ohio (Dayton Power & Light) Bills (Residential)
- 01Navigate to https://myprofile.aes-ohio.com and create an account with your service account number
- 02Log in with username and password
- 03Select View and Pay Your Bill to see current and historical bills
- 04Download or print bills (PDF/HTML)
Third-Party Access to AES Ohio (Dayton Power & Light) Billing Data
CRES Business Partner Portal (BPP) with LOA
- 01Become PUCO-certified as a CRES Provider / Power Marketer / Power Broker
- 02Register with AES Ohio as an Alternate Generation Supplier (AGS)
- 03Request Business Partner Portal credentials (aesohioretail@aes.com)
- 04Obtain a signed customer Letter of Authorization (LOA)
- 05Submit the LOA and request historical usage by account/SDI via the BPP
Green Button credential aggregation
- 01Customer downloads Green Button data or authorizes Connect My Data
- 02Third party retrieves interval and usage data via the Green Button portal
- 03Data delivered in XML (ESPI) or CSV
Want to understand the charges on your bill?
See the AES Ohio (Dayton Power & Light) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
AES Ohio's AMI smart meters record electricity consumption at 15-minute intervals. Customers access interval data through the Green Button portal using their MyAES credentials; third parties access it via the CRES Business Partner Portal with a Letter of Authorization.
How to Download AES Ohio (Dayton Power & Light) Interval Data via Green Button
- 01Verify you have a smart meter (check bill or aes-ohio.com/smart-meters)
- 02Go to the AES Ohio Green Button portal and sign in with MyAES credentials
- 03Click Download My Data
- 04Select date range (up to 24 months) and format (XML or CSV)
- 05Optionally use Connect My Data to grant a third party time-limited access
Interval data is essential for rate comparison and TOU analysis.
See which AES Ohio (Dayton Power & Light) rate schedule is best for your usage pattern →Third-Party API Access
AES Ohio's primary programmatic third-party access is the CRES Business Partner Portal (for certified suppliers/aggregators, LOA-gated) and Green Button Connect My Data for customer-authorized app access. A public developer REST API is not yet available, though the 2024 CIS modernization may enable future API offerings.
Available AES Ohio (Dayton Power & Light) API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| Pre-enrollment customer list (monthly) | BPP > Pre-Enrollment Customer List | GET | Flat file |
| Historical usage by account/SDI | BPP > Historical Usage | GET | XML/CSV |
| Green Button Connect interval data | Green Button CMD API | GET | XML (ESPI) |
How to Register as a AES Ohio (Dayton Power & Light) API Vendor
- 01Obtain PUCO CRES certification
- 02Register with AES Ohio as an AGS and request BPP access
- 03Collect signed customer LOA(s)
- 04Submit LOA and request historical usage/interval data via BPP
- 05Download data in XML (ESPI) or CSV
EDI (Electronic Data Interchange)
AES Ohio supports ANSI X12 EDI for CRES Providers, Power Marketers, and trading partners, used for enrollment, meter data, invoicing, and payment under Bill Ready, Rate Ready, and Dual Billing arrangements. Certification testing is conducted in seasonal flights.
Supported AES Ohio (Dayton Power & Light) EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 814 | Enrollment / Application for Service | Customer enrollment, change, and drop transactions |
| 810 | Invoice | Bill Ready invoice transactions from supplier |
| 867 | Meter Data / Product Identifier | Meter usage data and rate schedule information |
| 820 | Payment / Financial Information | Payment and remittance information |
| 997 | Functional Acknowledgement | Transaction receipt confirmation (997 or 999) |
How to Enroll in AES Ohio (Dayton Power & Light) EDI
- 01Obtain PUCO CRES certification
- 02Register with AES Ohio as an AGS (registration materials, credit application, billing services agreement)
- 03Download EDI test plans and specifications from the EDI Info page
- 04Set up EDI transmission (VAN, SFTP, or AS2) and obtain Trading Partner ID
- 05Complete EDI certification testing (seasonal flights, ~2-4 weeks)
- 06Receive certification and go live
Rate Schedules & Tariff Analysis
AES Ohio C&I bills separate regulated distribution (PUCO tariffs D19-D22) from competitive generation supply (SSO or CRES). For demand-metered classes, per-kW demand charges and (above ~200 kW) time-of-use periods are the dominant levers, while generation supply can be optimized by shopping CRES providers in Ohio's deregulated market.
AES Ohio (Dayton Power & Light) Rate Schedule List
| Schedule | Applicability |
|---|---|
| Secondary (D19) | Commercial at secondary voltage |
| Primary (D20) | Larger C&I at primary voltage |
| Primary-Substation (D21) | Large industrial at substation primary |
| High Voltage (D22) | Very large industrial at high voltage |
AES Ohio (Dayton Power & Light) Rate Features & TOU Details
- Voltage-based distribution classes: Secondary (D19), Primary (D20), Primary-Substation (D21), High Voltage (D22)
- Demand charges apply above ~10 kW; time-of-use mandatory above ~200 kW
- Separate, shoppable generation supply (SSO Price to Compare ~$0.0945/kWh Jun 2025-May 2026, or CRES)
- 15-minute AMI interval data supports demand-charge management
- Multiple riders (Infrastructure Investment, Distribution Investment, TCRR, etc.) on the distribution bill
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full AES Ohio (Dayton Power & Light) Rate Optimization Guide →Other Data Access Programs
Governmental & Community Aggregation
AES Ohio supports opt-out and opt-in governmental aggregation programs that bundle customers for power purchasing, providing aggregated load profiles and customer lists to registered aggregators.
- 01Aggregator files certification with PUCO and registers with AES Ohio
- 02Provide aggregation program details and customer/account list
- 03Receive aggregation customer lists and aggregated load/demand data
- 04Manage opt-in/opt-out and coordinate with the chosen supplier
Pre-Enrollment Customer List
Registered CRES Providers download a monthly file with customer account numbers, SDIs, rate classes, 12 months of usage, and meter attributes for solicitation and service.
- 01Register with AES Ohio and obtain BPP credentials
- 02Log into the Business Partner Portal
- 03Download the monthly Pre-Enrollment Customer List
- 04Use data within CRES Web Portal Terms of Use
Limitations & Considerations
- ⚠No public developer REST API yet; programmatic third-party access is via the CRES Business Partner Portal or Green Button Connect.
- ⚠Interval (15-minute) data requires an installed AMI smart meter; deployment continues through 2028, so some service points are not yet AMI-metered.
- ⚠Third-party interval and granular data access requires a customer Letter of Authorization per Ohio Administrative Code.
- ⚠Business Partner Portal access is limited to PUCO-certified CRES Providers/Power Marketers/Power Brokers registered as an AGS with AES Ohio.
- ⚠2024 CIS migration changed account numbers (12 digits vs. prior 10); older integrations may need remapping.
AES Ohio (Dayton Power & Light) Data Access FAQ
How does a C&I customer get 15-minute interval data from AES Ohio?▾
If the service point has an AMI smart meter, the customer signs into the AES Ohio Green Button portal with MyAES credentials and uses Download My Data to export up to 24 months of 15-minute interval data in XML or CSV. Connect My Data can grant a third party time-limited access.
How does a supplier or consultant access our usage data?▾
A PUCO-certified CRES Provider registered with AES Ohio uses the Business Partner Portal. With a signed customer Letter of Authorization (LOA), they can request up to 24 months of historical usage and interval data by account number/SDI, downloaded as XML or CSV.
Is electricity generation deregulated for AES Ohio business customers?▾
Yes. Ohio has retail electric choice (Energy Choice Ohio). AES Ohio delivers power and bills delivery regardless of supplier; C&I customers can buy generation from a CRES provider or take the Standard Service Offer (SSO), whose Price to Compare was about $0.0945/kWh for June 2025-May 2026.
What commercial and industrial distribution rate schedules does AES Ohio offer?▾
AES Ohio's distribution tariffs include Secondary (D19), Primary (D20), Primary-Substation (D21), and High Voltage (D22) service, plus Public EV Charging Station (D24). Larger classes are demand-metered; specific charges are in the D02 Tariff Index and the individual rate sheets.
Does AES Ohio support EDI for competitive suppliers?▾
Yes. AES Ohio supports ANSI X12 EDI (814, 810, 867, 820 with 997/999 acknowledgements) under Bill Ready, Rate Ready, and Dual Billing, with seasonal certification flights. Certified CRES providers register as an AGS and complete EDI testing before going live.
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