Cobb Electric Membership Corporation (Cobb EMC) Data Access Guide

Cobb EMC is Georgia's largest electric membership cooperative, serving roughly 224,000 member-accounts across metro-Atlanta's northwest suburbs. As a member-owned co-op outside Georgia's retail-choice rules, it provides hourly interval data and Green Button exports through the NISC SmartHub platform.

Georgia · Electric Cooperative·224,124 customers·Fully supported by Nectar·Last updated June 4, 2026

How to Get Your Cobb Electric Membership Corporation (Cobb EMC) Data: All Access Methods

Method1st Party3rd PartyCustomer TypesData TypesLatencyFormat
SmartHub Portal & Mobile AppResidential & CommercialBilling, usageReal-time viewWeb/App, PDF
Green Button Download My DataResidential & CommercialHourly intervalSame/next dayXML, CSV
Green Button Connect My DataAuthorized third partiesInterval, billingAutomatedXML / API
NISC SmartHub APIPartner vendorsAccount, usage, billingReal-timeJSON
NectarResidential & CommercialBilling, intervalPeriodic syncMultiple
01

Billing Data Access

Billing data is available 24/7 through the NISC SmartHub web portal and mobile app. Members can view current balances, download PDF bills, and review payment history.

What Data Is on Your Cobb Electric Membership Corporation (Cobb EMC) Bill

  • Current bill balance and due date
  • Billing history (prior bills)
  • Bill in PDF format
  • Account summary and service details
  • Payment history
  • Rate and charge breakdown

How to Download Cobb Electric Membership Corporation (Cobb EMC) Bills (Business & Commercial)

  1. 01Call Cobb EMC Business Services at 770-429-2100 to establish online access
  2. 02Log into SmartHub with provided credentials
  3. 03Open Billing & Pay to view demand, power-factor, and TOU charges
  4. 04Download bills in PDF and export billing data for accounting

How to Download Cobb Electric Membership Corporation (Cobb EMC) Bills (Residential)

  1. 01Go to https://cobbemc.smarthub.coop and register with account number and billing ZIP
  2. 02Log in and open Billing & Pay
  3. 03Select View/Print Bill to open the PDF
  4. 04Use the billing history section to download prior bills

Third-Party Access to Cobb Electric Membership Corporation (Cobb EMC) Billing Data

SmartHub Connected Apps (OAuth 2.0)

  1. 01Member logs into SmartHub
  2. 02Opens Connected Applications / Third Party Access
  3. 03Authorizes the application via OAuth consent
  4. 04Application receives an access token for ongoing retrieval

Nectar API access

  1. 01Integrate with Nectar — see docs.nectarclimate.com
  2. 02Customer provides their Cobb EMC account number
  3. 03Customer authorizes via SmartHub login
  4. 04Nectar syncs billing and interval data
PDFXML (Green Button)CSV (Green Button)Online dashboard

Want to understand the charges on your bill?

See the Cobb Electric Membership Corporation (Cobb EMC) Rate Schedules & Tariff Guide →

02

Interval Data & Smart Meters

Cobb EMC has fully deployed AMI (194,195+ smart meters) with hourly interval data managed in Oracle Utilities Meter Data Management. Usage is viewable in SmartHub and exportable via Green Button.

Meter Technology
Two-way wireless RF AMI; Oracle Utilities MDM with VEE validation; Multispeak/IEC CIM compliant.
Electric Granularity
Hourly (1-hour interval) plus daily summaries
Gas Granularity
Not applicable (electric only)

How to Download Cobb Electric Membership Corporation (Cobb EMC) Interval Data via Green Button

  1. 01Log into SmartHub
  2. 02Open the My Usage tab
  3. 03Click Green Button Download My Data
  4. 04Select date range, granularity, and XML or CSV format
  5. 05Download the zipped file and extract the data

Interval data is essential for rate comparison and TOU analysis.

See which Cobb Electric Membership Corporation (Cobb EMC) rate schedule is best for your usage pattern →

03

Green Button Access

Download My Data

Green Button Download My Data exports interval usage in standardized format via the SmartHub My Usage tab.

Formats
XML (ESPI), CSV
Available To
All members (residential and commercial)

Connect My Data

Green Button Connect My Data is supported on the NISC SmartHub platform for automated third-party access (high likelihood; standard NISC capability).

API Standard
NAESB REQ.21 ESPI / OAuth 2.0
Available To
Authorized third parties via OAuth 2.0

04

Third-Party API Access

NISC SmartHub exposes a RESTful API with OAuth 2.0. Access requires a business partnership; it is not publicly documented. Customer-authorized retrieval is also available via Green Button CMD and via Nectar, which provides API access to Cobb EMC billing and interval data — see docs.nectarclimate.com.

Program
NISC SmartHub API
Auth Method
OAuth 2.0
Rate Limits
Set per partnership agreement (implement exponential backoff)
Interval Latency
Same-day or next-day after AMI processing

Available Cobb Electric Membership Corporation (Cobb EMC) API Endpoints

FunctionEndpointMethodFormat
Account info/accounts/{accountId}GETJSON
Interval usage/accounts/{accountId}/usageGETJSON
Billing data/accounts/{accountId}/billsGETJSON

How to Register as a Cobb Electric Membership Corporation (Cobb EMC) API Vendor

  1. 01Contact Cobb EMC Business Services for SmartHub API and sandbox access
  2. 02Receive client credentials
  3. 03Implement OAuth 2.0 and call endpoints
  4. 04Test in sandbox then request production access

05

EDI (Electronic Data Interchange)

How to Enroll in Cobb Electric Membership Corporation (Cobb EMC) EDI

  1. 01Contact Business Services to discuss data integration or API needs rather than retail-choice EDI

06

Rate Schedules & Tariff Analysis

Cobb EMC C&I rates combine a fixed service charge, tiered/declining energy blocks, and (for Rate 40 and above) a demand component plus reactive-demand adjustment. All rates float with the Wholesale Power Adjustment (WP-12), so verified base figures are supplemented by a monthly power-cost pass-through.

Cobb Electric Membership Corporation (Cobb EMC) Rate Schedule List

ScheduleApplicability
Rate 30 - Small General ServiceSingle-phase commercial, churches, schools
Rate 40 - Large General ServiceThree-phase demand-metered commercial
Commercial TOU / CPPTime-varying commercial pricing
Large Power 900 kW+Large C&I negotiated contract

Cobb Electric Membership Corporation (Cobb EMC) Rate Features & TOU Details

  • Tiered/declining-block energy pricing
  • Seasonal winter/summer differentiation (Rate 30)
  • Demand charges with summer/winter ratchets (Rate 40)
  • Reactive-demand (kVAR) adjustment over 50 kW
  • Wholesale Power Adjustment (WP-12) pass-through
  • TOU and CPP options for load shifting

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

Read the full Cobb Electric Membership Corporation (Cobb EMC) Rate Optimization Guide →

07

Other Data Access Programs

Commercial Critical Peak Pricing (CPP)

Commercial CPP rate with higher prices 3-8 p.m. on summer weekdays and during critical peak events, rewarding load shifting.

  1. 01Review the Commercial CPP Rate Schedule
  2. 02Complete the enrollment form
  3. 03A representative enrolls the account

NiteFlex EV / Time-of-Use

Time-of-use options including the NiteFlex EV rate provide consumption broken out by on-peak and off-peak periods.

  1. 01Review TOU rate options at cobbemc.com/rates
  2. 02Enroll through Member Services
  3. 03View time-period usage in SmartHub My Usage

08

Limitations & Considerations

  • No formal EDI / ESCO retail-choice transactions (cooperative, no retail choice)
  • SmartHub API requires a business partnership and is not publicly documented
  • Green Button Connect My Data is standard on NISC but not explicitly confirmed for Cobb EMC
  • Export formats limited to Green Button XML/CSV

09

Cobb Electric Membership Corporation (Cobb EMC) Data Access FAQ

How can our facilities team pull interval data for a Cobb EMC commercial account?

Log into SmartHub, open My Usage, and use Green Button Download My Data to export hourly interval data as XML or CSV (up to 14 months). For automation, request SmartHub API access through Business Services.

Does Cobb EMC support automated third-party data access?

Yes, through Green Button Connect My Data (OAuth 2.0 on NISC SmartHub) and via Nectar, which provides API access to Cobb EMC billing and interval data — see docs.nectarclimate.com. A direct SmartHub API is available under partnership.

What interval granularity is available for C&I accounts?

Hourly (1-hour) interval data plus daily summaries, collected via AMI and managed in Oracle Utilities MDM.

Can our business shop for a competitive electricity supplier?

No. Cobb EMC is a member-owned cooperative and Georgia retail choice does not apply, except that large loads of 900 kW or greater for new construction may choose a supplier under the Georgia Territorial Electric Service Act (GTESA).

How are demand charges handled for large commercial accounts?

Rate 40 (Large General Service) bills demand based on the highest 30-minute kW with summer/winter ratchets, and applies a reactive-demand (kVAR) adjustment where demand exceeds 50 kW.

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