Entergy Mississippi Data Access Guide
Entergy Mississippi, LLC is an investor-owned, regulated electric utility serving roughly 459,000 customers across 45 Mississippi counties as a subsidiary of Entergy Corporation. Regulated by the Mississippi Public Service Commission (MPSC) under an annual Formula Rate Plan, it has deployed AMI smart meters with 15-minute interval capability and offers EDI, DataLink, and myAdvisor data access.
How to Get Your Entergy Mississippi Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| myEntergy Portal | ✓ | — | Residential, C&I | Billing, usage | Real-time / daily | Web, PDF |
| myAdvisor | ✓ | — | Residential, small business | 15-min usage analysis | 2-4x daily | Web, PDF |
| DataLink | ✓ | ✓ | Commercial, industrial | 15-min interval data | Daily | Web, CSV |
| EDI (810) | ✓ | ✓ | C&I, government | Invoices | Monthly | ANSI X12 |
Billing Data Access
Entergy Mississippi provides billing access through the myEntergy self-service portal and the myAdvisor analysis tool. Customers can view current and historical bills, set alerts, and analyze usage. There is no formal Share My Data third-party authorization portal; third-party access is customer-initiated or arranged through the Entergy Business Center.
What Data Is on Your Entergy Mississippi Bill
- Current and past bills (amount due, charges breakdown)
- Usage and demand charges
- Fuel adjustment charges
- Payment history
- myAdvisor usage and bill-driver analysis
How to Download Entergy Mississippi Bills (Business & Commercial)
- 01Customer downloads bills as PDF from myEntergy and shares securely with the third party
- 02Or submit a signed customer authorization to the Entergy Business Center (1-800-766-1648)
- 03For commercial interval data, enroll in DataLink and authorize third-party access
- 04For automated invoicing, enroll in EDI (810 invoice) via the Business Center
How to Download Entergy Mississippi Bills (Residential)
- 01Create a myEntergy account at myentergy.com with account number and verification details
- 02Sign in and open Pay My Bill / View My Bill
- 03Select a billing period and download the bill as PDF
- 04Open My Usage & Cost / myAdvisor for detailed usage analysis
Third-Party Access to Entergy Mississippi Billing Data
Business Center Authorization
- 01Customer completes a written data authorization form
- 02Submit to Entergy Business Center (1-800-766-1648)
- 03Entergy verifies ownership (5-10 business days)
- 04Data delivered to the third party in PDF or structured format
DataLink Third-Party Access
- 01Customer authorizes third party for DataLink access
- 02Entergy provisions DataLink credentials for the enrolled accounts
- 03Third party retrieves 15-minute interval data via the DataLink portal
Want to understand the charges on your bill?
See the Entergy Mississippi Rate Schedules & Tariff Guide →Interval Data & Smart Meters
Entergy Mississippi has deployed AMI throughout its territory; new and replaced meters record usage in 15-minute intervals. Residential and small-business customers view interval/usage data through myAdvisor and an on-demand meter read in myEntergy; commercial and industrial customers access detailed 15-minute interval data through the DataLink (Enerwise Energy Manager) portal.
How to Download Entergy Mississippi Interval Data via Green Button
- 01Log into myEntergy and open My Usage & Cost
- 02Use the On Demand Read to refresh current 15-minute meter data
- 03Open myAdvisor for historical usage views
- 04For raw interval export, C&I customers use DataLink (enrollment required)
Interval data is essential for rate comparison and TOU analysis.
See which Entergy Mississippi rate schedule is best for your usage pattern →Third-Party API Access
Entergy Mississippi does not currently offer a real-time streaming customer-data API. Commercial interval access is via the DataLink portal; a Green Button Connect My Data ESPI API has been proposed to the MPSC. Aggregator/EDI partnerships are negotiated directly with the Entergy Business Center.
Available Entergy Mississippi API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| Green Button CMD interval usage (proposed) | /api/customer/{id}/interval/ | GET | XML/ATOM (ESPI) |
How to Register as a Entergy Mississippi API Vendor
- 01Contact Entergy Business Center (1-800-766-1648) to discuss data access
- 02Collect signed customer authorizations
- 03Receive DataLink credentials or EDI connection details
- 04Retrieve and process interval/billing data on a regular schedule
EDI (Electronic Data Interchange)
Supported Entergy Mississippi EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 810 | Invoice | Receive Entergy bills in standardized EDI format |
| 820 | Payment Order/Remittance Advice | Send payments electronically |
| 814 | Metered Data | Receive interval meter reading data (where available) |
| 867 | Product Transfer / Demand Response Data | Demand management information |
How to Enroll in Entergy Mississippi EDI
- 01Review the EDI Implementation Guide and determine required transactions and transmission method (VAN or direct SFTP/AS2)
- 02Contact the Entergy EDI team at 1-800-766-1648 and provide company legal name, DUNS, trading partner ID, accounts, and transactions
- 03Complete the EDI enrollment form and connection details
- 04Conduct testing (typically 1-2 weeks), then go live in production
Rate Schedules & Tariff Analysis
Entergy Mississippi bills combine an MPSC-approved base rate schedule with a stack of riders that recover fuel, MISO, grid modernization, storm restoration, and tax costs. The Formula Rate Plan (FRP-7) adjusts base rates annually, keeping overall rates relatively stable. Demand charges dominate the larger C-29, HLF-7, and ALGS-10 classes, so load factor and peak management drive cost for industrial customers. Exact per-unit charges live in the individual tariff PDFs.
Entergy Mississippi Rate Schedule List
| Schedule | Applicability |
|---|---|
| GS-300 / B-34 | Small-to-intermediate commercial general service. |
| C-29 / HLF-7 / ALGS-10 | Large general service and high-load-factor industrial. |
| Riders (FRP-7, ECR-4, MISO-2, GMR-1, SRC-1, ATA-3) | Modify all C&I base schedules. |
| CI-1 / MVDR-1 | EV charging and market demand response. |
Entergy Mississippi Rate Features & TOU Details
- Tiered C&I schedules by size and load factor (GS-300, B-34, C-29, HLF-7, ALGS-10)
- Annual Formula Rate Plan (FRP-7) adjustment
- Energy Cost Recovery (ECR-4) and MISO (MISO-2) riders pass through wholesale costs
- Grid Modernization (GMR-1) and System Restoration (SRC-1) riders
- Rates roughly 20% below national average (2024 EIA)
- EV charging (CI-1) and demand response (MVDR-1) options
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Entergy Mississippi Rate Optimization Guide →Other Data Access Programs
Smart Thermostat Program
Demand response program through EnergyHub-connected thermostats (Sensi, Honeywell) offering bill credits for load management participation.
- 01Purchase an eligible smart thermostat
- 02Enroll in the Entergy Mississippi Smart Thermostat Program
- 03Authorize demand response signals
Small Business Incentive Program (SBI-2)
MPSC-approved rider offering efficiency incentives to qualifying small business customers.
- 01Review the SBI-2 rider on the tariffs page
- 02Contact the Business Center for eligibility
Limitations & Considerations
- ⚠No automated Share My Data / self-service third-party authorization portal.
- ⚠Green Button Connect My Data is proposed to the MPSC but not confirmed operational.
- ⚠No real-time streaming interval API; DataLink requires manual login/download.
- ⚠Per-kWh and per-kW C&I rate figures are not published as plain values; they reside in the tariff PDFs and vary with monthly riders.
- ⚠CSV export from myAdvisor may require a special request and is not available for all meter types.
Entergy Mississippi Data Access FAQ
How does a C&I customer get 15-minute interval data from Entergy Mississippi?▾
Commercial and industrial customers enroll in DataLink (Enerwise Energy Manager) by contacting the Entergy Business Center at 1-800-766-1648. Once provisioned, the DataLink portal at entergyenergymanager.powerportal.com provides raw 15-minute interval curves, daily summaries, and CSV/Excel export. DataLink is subject to the DTK-4 Datalink Rider.
Can a consultant or aggregator receive our usage and billing data directly?▾
There is no automated Share My Data portal. Third parties obtain data through customer-signed authorizations submitted to the Business Center, DataLink third-party access for interval data, or an EDI aggregator partnership for invoices. A Green Button Connect My Data API has been proposed to the MPSC but is not yet confirmed operational.
Which rate schedule applies to my commercial or industrial facility?▾
Entergy Mississippi C&I customers are typically served under GS-300 (General Lighting and Power), B-34 (Intermediate General Service), or C-29 (Large General Service), with options such as HLF-7 (High Load Factor) and ALGS-10 (Alternate Large General Service). The applicable schedule depends on demand level and load factor; contact the Business Development team to confirm eligibility.
How are Entergy Mississippi rates set and how often do they change?▾
Rates are regulated by the Mississippi Public Service Commission, primarily through the Formula Rate Plan (FRP-7) which is reviewed annually. In June 2025 the MPSC approved the annual plan keeping rates essentially flat (a roughly 0.04-cent decrease for a typical 1,000 kWh residential bill) effective the July billing cycle. Bills also include riders such as ECR (energy cost recovery), MISO, and grid modernization.
What riders affect a commercial bill?▾
Beyond the base rate schedule, bills are modified by riders including FRP-7 (Formula Rate Plan), ECR-4 (Energy Cost Recovery), MISO-2 (MISO cost & revenue), GMR-1 (Grid Modernization), SRC-1 (System Restoration Charge), and ATA-3 (Ad Valorem Tax). Optional riders such as HF-12 (Highly Fluctuating Load) or SS-12 (Standby/Supplementary) may apply based on load characteristics.
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