Mississippi Power Company Data Access Guide
Mississippi Power Company is a Southern Company investor-owned electric utility serving roughly 192,000 customers across southeastern Mississippi. C&I customers access billing via the online portal and EDI (810/820/997), with daily AMI usage data through My Power Usage; Green Button and a public API are not offered.
How to Get Your Mississippi Power Company Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| Online Billing Portal | ✓ | — | Residential, C&I | Bills, usage, payments | Real-time | PDF / Web |
| My Power Usage | ✓ | — | Residential, C&I | Daily usage and cost | 24 hours | Web / charts |
| EDI 810/820/997 | ✓ | ✓ | C&I | Invoices, payments | Same day | ANSI X12 |
| Nectar API (third-party) | — | ✓ | C&I | Bills + interval | 24-48 hours | REST/JSON |
Billing Data Access
Mississippi Power provides online billing access through its customer portal for residential and business accounts. Bills are primarily PDF with limited CSV export. There is no formal OAuth third-party authorization; consultants access data via Nectar's API (docs.nectarclimate.com) or shared customer credentials. EDI is available for high-volume C&I billing.
What Data Is on Your Mississippi Power Company Bill
- Current balance and due date
- 13-month billing history with usage
- PDF billing statements
- Payment history and confirmations
- Projected monthly bill
- Daily usage and cost estimates
How to Download Mississippi Power Company Bills (Business & Commercial)
- 01Visit https://www.mississippipower.com/business/manage-your-account.html
- 02Register a business online account
- 03Access 13-month billing history and PDF statements
- 04For high transaction volumes, contact edisupp@southernco.com to enroll in EDI 810/820
- 05Use the Property Managers Portal for multi-unit consolidation
How to Download Mississippi Power Company Bills (Residential)
- 01Visit https://www.mississippipower.com
- 02Click the My Account button in the top navigation
- 03Register with a username and password
- 04Log in to view bills, usage, and payment history
- 05Download statements as PDF
Third-Party Access to Mississippi Power Company Billing Data
Shared-credential portal access
- 01Customer provides account number and portal credentials
- 02Third party logs in and downloads PDF bills
- 03Data manually extracted from PDF
Nectar API (third-party)
- 01Customer authorizes access to their Mississippi Power account via Nectar (docs.nectarclimate.com)
- 02Nectar syncs bill and usage data
- 03Data delivered via Nectar's REST API
Authorized EDI 810 delivery
- 01Customer authorizes third party with Southern Company EDI support
- 02Third party establishes VAN/translator connection
- 03EDI 810 invoices delivered on the customer billing schedule
Want to understand the charges on your bill?
See the Mississippi Power Company Rate Schedules & Tariff Guide →Interval Data & Smart Meters
AMI smart meters are deployed across the service territory, enabling two-way communication, remote connect/disconnect, and daily reads. Customers view usage through My Power Usage, which surfaces daily usage, cost, and temperature correlation with some hourly breakdowns. There is no Green Button or standardized interval-data export; third parties access interval-equivalent data via aggregators.
How to Download Mississippi Power Company Interval Data via Green Button
- 01Green Button is not offered by Mississippi Power
- 02Use My Power Usage for daily usage visualization
- 03For interval-equivalent data, use Nectar's API — see docs.nectarclimate.com
Interval data is essential for rate comparison and TOU analysis.
See which Mississippi Power Company rate schedule is best for your usage pattern →Third-Party API Access
Mississippi Power does not offer a public developer portal, REST API, or OAuth-based third-party data program. Programmatic access is achieved indirectly through third-party APIs — Nectar provides API access to this utility's billing and interval data; see docs.nectarclimate.com.
Available Mississippi Power Company API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| List bills (via Urjanet) | /customers/{id}/bills | GET | JSON |
| List intervals (via Urjanet) | /customers/{id}/intervals | GET | JSON |
How to Register as a Mississippi Power Company API Vendor
- 01Use Nectar's API for programmatic access — see docs.nectarclimate.com
- 02Have the customer authorize access to their Mississippi Power account
- 03Bill and usage data syncs automatically
- 04Consume normalized data via the API
EDI (Electronic Data Interchange)
EDI is available across Southern Company utilities including Mississippi Power. Supported transactions are 810 (invoice), 820 (payment/remittance), and 997 (functional acknowledgement) in ANSI X12 v4010, transmitted via the Harbinger VAN using a Sterling GENTRAN translator. ACH via CTX format is also supported. Enrollment is handled through Southern Company EDI support.
Supported Mississippi Power Company EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 810 | Utility Invoice | Electronic transmission of utility invoices/bills |
| 820 | Payment Order / Remittance Advice | Electronic payment orders and remittance advice (CTX-capable) |
| 997 | Functional Acknowledgement | Confirms receipt and processing status of EDI messages |
How to Enroll in Mississippi Power Company EDI
- 01Contact EDI support at edisupp@southernco.com
- 02Complete the EDI enrollment form and specify transactions (810/820/997)
- 03Identify your EDI translator and VAN provider
- 04Configure mapping to Southern Company specs and test in pilot
- 05Move to production and monitor 997 acknowledgements
Rate Schedules & Tariff Analysis
Mississippi Power C&I bills are dominated by demand (per-kVA) charges with summer ratchet provisions, so demand management materially affects cost. Energy charges are tiered to decline with higher hours-use of demand, favoring high-load-factor operations. Fuel Cost Recovery and Environmental Compliance Overview clauses are pass-through riders added to base charges. Selecting between LGS-LV/HV, time-of-use, and large-power schedules depends on voltage, load size, and load shape.
Mississippi Power Company Rate Schedule List
| Schedule | Applicability |
|---|---|
| GS-HV-17 | General Service High Voltage commercial/industrial |
| LGS-LV-13 | Large General Service Low Voltage |
| LGS-HV-13 | Large General Service High Voltage |
| LGS-TOU-18 / LPO-TOU-17 | Time-of-use large general / large power |
Mississippi Power Company Rate Features & TOU Details
- Per-kVA demand billing with 75% summer ratchet and minimums
- Tiered energy charges by hours-use of demand (rewards high load factor)
- Fuel Cost Recovery and Environmental Compliance Overview pass-through clauses
- Transmission-voltage delivery credit on high-voltage schedules
- Time-of-use options (LGS-TOU-18, LPO-TOU-17) for load shifting
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Mississippi Power Company Rate Optimization Guide →Other Data Access Programs
Property Managers Portal
A free portal for multi-unit property managers offering consolidated billing, payment, service requests, and per-unit usage across all accounts on a property.
- 01Create a property manager user profile
- 02Apply for access to specific properties (landlord agreement may be required)
- 03Receive confirmation within 2-3 business days
- 04Log in to manage all units
Mobile App
The Mississippi Power mobile app provides bill payment, daily usage tracking, outage alerts, and account management with the same data as the web portal.
- 01Download from the Apple App Store or Google Play
- 02Log in with portal credentials (biometric optional)
- 03View usage, bills, and notifications
Limitations & Considerations
- ⚠No Green Button Download My Data or Connect My Data (no ESPI/NAESB REQ.21 support)
- ⚠No public developer API, sandbox, or OAuth third-party authorization
- ⚠Interval data resolves only to daily granularity in customer tools
- ⚠Third-party access typically requires shared credentials or aggregator enrollment
- ⚠Bill data is primarily PDF with only limited CSV export
Mississippi Power Company Data Access FAQ
Does Mississippi Power support Green Button or a public API for C&I data?▾
No. Mississippi Power does not offer Green Button Download My Data, Connect My Data, or a public developer API. For programmatic access, C&I customers typically use EDI 810 for billing or Nectar's API — see docs.nectarclimate.com.
How can a C&I customer automate utility invoices?▾
Enroll in EDI through Southern Company EDI support (edisupp@southernco.com). Mississippi Power supports EDI 810 invoices, 820 payments, and 997 acknowledgements in ANSI X12 v4010 over the Harbinger VAN, which integrates with ERP and accounts-payable systems.
What interval granularity is available for commercial accounts?▾
AMI meters are deployed territory-wide, but customer-facing tools (My Power Usage) resolve to daily intervals with some hourly breakdowns. There is no standardized 15-minute interval export; third-party APIs such as Nectar can provide normalized interval data where supported.
How does a consultant access a client's Mississippi Power data?▾
There is no OAuth third-party portal at the utility. Consultants either use customer-shared portal credentials, receive authorized EDI 810 invoices, or use Nectar's API (docs.nectarclimate.com) to receive normalized bill and usage data.
Which rate schedules apply to large commercial and industrial customers?▾
Large C&I customers typically take service under Large General Service (LGS-LV-13 low voltage, LGS-HV-13 high voltage), the time-of-use options LGS-TOU-18 and LPO-TOU-17, or General Service High Voltage (GS-HV-17). These are demand-based (per-kVA) schedules filed with the Mississippi PSC effective June 18, 2025.
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