Mid-South Electric Cooperative Association Data Access Guide

Mid-South Electric Cooperative Association serves about 41,300 electric members in rural South Central Texas, uniquely operating in both ERCOT and MISO wholesale markets and running a Virtual Peaker DERMS with 600+ smart thermostats. Customer data access is limited to the online portal and MSEC mobile app — no Green Button, API, or EDI programs are documented for retail customers.

Texas · Electric Cooperative·41,331 customers·Last updated May 27, 2026

How to Get Your Mid-South Electric Cooperative Association Data: All Access Methods

Method1st Party3rd PartyCustomer TypesData TypesLatencyFormat
Online Customer PortalAll membersBills (12+ months), usage history, balancesMonthlyPDF / web
MSEC Mobile AppAll membersBills, balance, usage graphsNear real-time account infoMobile app
Customer-Authorized Manual RequestConsultants/energy managers with written authorizationBilling history, interval data (if available)5-10 business daysPer utility capabilities
Commercial/Developers PartnershipAggregators/technology providers by negotiationCustom per agreement4-12 week evaluationPer agreement
01

Billing Data Access

MidSouth Electric provides billing access through a modern web portal and MSEC mobile app: current bills, previous billing history (12+ months), usage history, balances, and alerts. Bills are printable/savable as PDF via the browser; no bulk CSV/XML export or API exists. Third-party access requires direct contact and customer authorization.

What Data Is on Your Mid-South Electric Cooperative Association Bill

  • Current bill and previous billing history
  • Usage history and previous balances
  • Account balance and payment status
  • Alert management and notifications
  • E-billing enrollment

How to Download Mid-South Electric Cooperative Association Bills (Business & Commercial)

  1. 01Register the commercial account at https://billing.midsouthsynergy.com/onlineportal/
  2. 02Review billing history and usage under View Bills
  3. 03For bulk data or specific formats, contact (936) 825-5100 or memberservices@midsouthsynergy.com
  4. 04For custom agreements or API inquiries, contact the Commercial/Developers team

How to Download Mid-South Electric Cooperative Association Bills (Residential)

  1. 01Navigate to https://billing.midsouthsynergy.com/onlineportal/
  2. 02Click Create account or Sign In with your account number or User ID
  3. 03Complete profile setup with a password
  4. 04Open View Bills to see current and historical bills
  5. 05Print or save bills as PDF through the browser

Third-Party Access to Mid-South Electric Cooperative Association Billing Data

Customer-Authorized Request

  1. 01Customer provides written authorization naming the third party and the data scope
  2. 02Submit the authorization letter with account numbers to memberservices@midsouthsynergy.com or (936) 825-5100
  3. 03Specify data types, timeframe, delivery frequency, and format (XML, CSV, SFTP, etc.)
  4. 04Expect acknowledgment in 2-3 business days and processing in 5-10 business days
PDF

Want to understand the charges on your bill?

See the Mid-South Electric Cooperative Association Rate Schedules & Tariff Guide →

02

Interval Data & Smart Meters

MidSouth has invested heavily in grid modernization — distribution fault anticipation sensors with Texas A&M since 2017 and a Virtual Peaker DERMS managing 600+ smart thermostats since 2024 — but no published interval/smart-meter download capability exists for retail customers. Interval data requests go through Member Services.

Meter Technology
AMI deployment initiated and ongoing as part of smart-grid initiatives; DFA sensors deployed with Texas A&M University; Virtual Peaker DERMS platform operating since 2024.
Electric Granularity
Unknown/undocumented — not specified in public materials

How to Download Mid-South Electric Cooperative Association Interval Data

  1. 01Contact MidSouth Electric at (936) 825-5100 or memberservices@midsouthsynergy.com
  2. 02Request interval/smart-meter data download capability for your account
  3. 03Ask about format (PDF, CSV, XML) and granularity (15-min, 30-min, hourly)
  4. 04Inquire about Green Button enrollment if it becomes available

Interval data is essential for rate comparison and TOU analysis.

See which Mid-South Electric Cooperative Association rate schedule is best for your usage pattern →

03

Green Button Access

Download My Data

No Green Button Download My Data program is advertised on the utility website or in public documentation.

Available To
Not available

Connect My Data

No Connect My Data or ESPI (Energy Services Provider Interface) implementation documented for retail customer access.

API Standard
Not implemented
Available To
Not available

04

Third-Party API Access

MidSouth advertises no public API, developer portal, or OAuth consent framework. Nectar provides API access to this utility's billing data — see docs.nectarclimate.com. Direct third-party access at the utility follows a customer consent model: written authorization submitted to Member Services, reviewed in 5-10 business days. Technology partnership inquiries route to the Commercial/Developers team with a 4-12 week evaluation period.

Program
None — manual authorization and custom agreements
Auth Method
Written customer authorization; partnership/integration agreements by negotiation

How to Register as a Mid-South Electric Cooperative Association API Vendor

  1. 01Obtain customer written authorization naming your organization and the access scope
  2. 02Email memberservices@midsouthsynergy.com or call (936) 825-5100
  3. 03Specify billing/interval data needs, delivery frequency, and format (XML, CSV, SFTP, API)
  4. 04For platform integrations, outline a business case to the Commercial/Developers team and budget 4-12 weeks for evaluation

05

EDI (Electronic Data Interchange)

No public retail EDI program is documented. MidSouth operates in two wholesale markets — ERCOT (using Texas Standard Electronic Transactions, TX SET) and MISO (standard EDI protocols) — but those are grid/wholesale communications, not retail customer channels. ANSI X12 would be the likely standard if EDI is supported, unconfirmed.

How to Enroll in Mid-South Electric Cooperative Association EDI

  1. 01Contact the Manager of Technology via (936) 825-5100 or memberservices@midsouthsynergy.com
  2. 02Request EDI specifications and trading partner enrollment documentation
  3. 03Ask about supported transaction sets, VAN connections, or direct protocols
  4. 04Expect an extended review given the absence of a formal program

06

Rate Schedules & Tariff Analysis

MidSouth publishes its tariff and rate schedules — covering residential, commercial, large commercial, and street lighting classes — under the Legal section of its website. The tariff documents do not contain formal customer data access policies or third-party program details.

Mid-South Electric Cooperative Association Rate Schedule List

ScheduleApplicability
ResidentialResidential members
CommercialCommercial members
Large CommercialLarge commercial members
Street LightingStreet lighting service

For a deeper analysis including cost optimization strategies and historical rate trends:

Read the full Mid-South Electric Cooperative Association Rate Optimization Guide →

07

Other Data Access Programs

Virtual Peaker DERMS & Smart Thermostat Program

Since 2024, MidSouth operates a Virtual Peaker distributed energy resource management system managing 600+ smart thermostats for demand response across ERCOT and MISO markets. Not a retail interval data channel, but a sign of advanced grid-edge capability.

Community Solar (Bedias Solar Farm)

A 2 MW community solar project at Bedias with solar energy purchase programs; data access limited to program enrollment.

Prepaid Metering

Pre-paid metering available for residential customers, providing more frequent balance/usage visibility.


08

Mid-South Electric Cooperative Association Data Access FAQ

Can C&I customers get interval data from Mid-South Electric Cooperative?

Not through any self-service channel. AMI deployment is underway, but the portal exposes no interval download and granularity is unpublished. Contact Member Services at (936) 825-5100 or memberservices@midsouthsynergy.com, specify the granularity (15-min, 30-min, hourly) and format you need, and expect a manual process.

Does MidSouth support Green Button, APIs, or EDI for retail customers?

No. There's no Green Button DMD/CMD, no ESPI implementation, no public API or developer sandbox, and no documented retail EDI trading partner program. MidSouth's ERCOT TX SET and MISO EDI activity is wholesale-market only — not a retail customer data channel.

How does a consultant request data on behalf of a MidSouth member?

Via the customer consent model: get a written authorization letter naming your firm with account numbers and scope, submit it to memberservices@midsouthsynergy.com or (936) 825-5100, and specify data types, timeframe, frequency, and format. Expect acknowledgment in 2-3 business days and processing in 5-10.

Why does MidSouth operate in both ERCOT and MISO?

Its South Central Texas territory straddles the two wholesale markets — unusual for a cooperative. That dual position drove the 2024 Virtual Peaker DERMS deployment, which manages 600+ smart thermostats for demand response and wholesale cost management across both markets.

What billing data is available in the MidSouth portal?

Current bills, 12+ months of billing history, usage history, balances, and alerts at billing.midsouthsynergy.com/onlineportal, plus the MSEC mobile app with usage graphs. Bills save as PDF through the browser only — there's no CSV/XML bulk export.

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