Potomac Electric Power Company (Pepco) Data Access Guide
Pepco, an Exelon company, is the regulated electric distribution utility for Washington, DC, serving roughly 950,000 customers with fully deployed AMI smart meters. DC operates a deregulated retail-supply market, so commercial customers can shop competitive suppliers while Pepco continues to provide poles-and-wires distribution and Standard Offer Service (SOS).
How to Get Your Potomac Electric Power Company (Pepco) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| My Account portal | ✓ | — | Residential, Commercial | Billing, monthly usage | Monthly | PDF, online |
| Green Button Download | ✓ | — | Residential, Commercial | Hourly usage | On demand | XML, CSV |
| EDI 867 | — | ✓ | Suppliers | Interval/monthly usage | At billing | X12 EDI |
| Third-Party Authorization | ✓ | ✓ | Residential, Commercial | Billing, usage | On demand | Portal, CSV/PDF |
Billing Data Access
Pepco provides comprehensive billing history through its My Account portal for all residential and commercial customers in DC. Bills are viewable and downloadable as PDF, with multiple years of history retained.
What Data Is on Your Potomac Electric Power Company (Pepco) Bill
- Current and historical bills (multiple years)
- Monthly billing summaries
- Usage patterns and trends
- Payment history and arrangements
- Bill and high-usage alerts
How to Download Potomac Electric Power Company (Pepco) Bills (Business & Commercial)
- 01Sign in to My Account at https://secure.pepco.com/MyAccount/
- 02Navigate to billing history for the business account
- 03Select the billing periods needed for budgeting or audit
- 04Download bills as PDF; export available usage data where offered
- 05For multi-account portfolios, authorize a consultant via third-party authorization
How to Download Potomac Electric Power Company (Pepco) Bills (Residential)
- 01Visit https://secure.pepco.com/accounts/login and register or sign in
- 02Open My Account dashboard and select My Bill / Account History
- 03Choose a billing period and view bill details
- 04Click Download or Print to save as PDF
- 05Enable alerts under My Alerts & Notifications
Third-Party Access to Potomac Electric Power Company (Pepco) Billing Data
Customer Usage Information Authorization
- 01Customer signs in to My Account and opens Third-Party / Service Provider Access
- 02Searches for the registered provider and grants access scope and duration (typically 12-24 months)
- 03Provider uploads authorization via PHI Supplier Relations portal and receives data access
- 04Customer can revoke at any time
Nectar API access
- 01Connect the customer's Pepco account via Nectar with their authorization
- 02Nectar retrieves and normalizes billing and interval data
- 03Access the data via Nectar's API — see docs.nectarclimate.com
Want to understand the charges on your bill?
See the Potomac Electric Power Company (Pepco) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
Pepco completed full AMI deployment in DC in December 2013 (277,222 meters, 100% coverage). Hourly interval usage is available to customers through Green Button download and to authorized suppliers via EDI 867.
How to Download Potomac Electric Power Company (Pepco) Interval Data via Green Button
- 01Sign in to My Account at https://secure.pepco.com/MyAccount/
- 02Open My Green Button Data (https://secure.pepco.com/MyAccount/MyBillUsage/Pages/MyGreenButtonData)
- 03Select a date range up to 13 months
- 04Choose XML or CSV format
- 05Click Download and open in Excel or an energy-management tool
Interval data is essential for rate comparison and TOU analysis.
See which Potomac Electric Power Company (Pepco) rate schedule is best for your usage pattern →Sources
Third-Party API Access
Pepco does not currently publish a public developer REST API. Programmatic interval data for authorized suppliers flows through EDI 867; a Green Button Connect My Data API is under DC PSC review but not yet operational. Aggregators typically use customer-mediated Green Button download/upload.
How to Register as a Potomac Electric Power Company (Pepco) API Vendor
- 01Register as a licensed Third-Party Supplier in the DC market
- 02Complete TPS online registration with Pepco
- 03Establish an EDI trading-partner agreement (X12 867)
- 04Configure VAN or direct connection and test transactions
- 05Receive EDI 867 interval data automatically once customers enroll
EDI (Electronic Data Interchange)
Pepco supports ANSI X12 EDI for licensed third-party suppliers in the DC competitive market. EDI 867 interval/monthly usage transactions are sent automatically at each billing cycle to authorized suppliers.
Supported Potomac Electric Power Company (Pepco) EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 867 | Monthly/Interval Usage | Delivers monthly or hourly interval consumption to authorized suppliers |
| 814 | Enrollment / Change | Supplier enrollment, drop and change requests |
How to Enroll in Potomac Electric Power Company (Pepco) EDI
- 01Become a licensed DC Third-Party Supplier and contact Pepco Supplier Relations
- 02Register in the Pepco TPS online system
- 03Sign an EDI trading-partner agreement and provide X12 compliance and VAN details
- 04Configure and test the EDI connection
- 05Receive EDI 867 transactions automatically at billing once customers are enrolled
Rate Schedules & Tariff Analysis
Pepco DC C&I customers face a two-part bill: regulated distribution (DC PSC, June 1 updates) and competitive/SOS supply. Rate class is driven by demand level and metering; demand charges dominate bills for MGT-LV and GT-LV customers. Customers should match class to demand profile and shop supply.
Potomac Electric Power Company (Pepco) Rate Schedule List
| Schedule | Applicability |
|---|---|
| GS-LV-ND | Small commercial under 25 kW |
| GS-LV | Midsize-to-large low-voltage commercial |
| MGT-LV | Time-metered commercial >=100 kW |
| GT-LV | Large commercial/industrial >=1,000 kW |
Potomac Electric Power Company (Pepco) Rate Features & TOU Details
- Demand-based class assignment (25 kW / 100 kW / 1,000 kW thresholds)
- Separate distribution vs. competitive supply charges
- Seasonal SOS supply pricing (summer effective June 1)
- TOU energy on MGT-LV
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Potomac Electric Power Company (Pepco) Rate Optimization Guide →Other Data Access Programs
Green Power Connection (DG/NEM) Contractor Authorization
Solar installers and engineers can be authorized by customers to access historical usage for system sizing and interconnection.
- 01Customer signs in to My Account
- 02Selects Update Contractor Data Access Authorization under Green Power Connection (DC)
- 03Provides contractor information and scope
- 04Authorizes access to historical usage
Programmatic data integration (Nectar)
Nectar provides API access to this utility's billing and interval data — see docs.nectarclimate.com. Customer-mediated Green Button download/upload and supplier EDI are alternative integration paths.
- 01Review the Nectar API documentation at docs.nectarclimate.com
- 02Connect the customer's Pepco account with their authorization
- 03Retrieve billing and interval data via the Nectar API
Limitations & Considerations
- ⚠No public developer REST API for direct customer data access
- ⚠Green Button Connect My Data (automated API) not yet live; under DC PSC review
- ⚠Customer-facing interval export is hourly only (no 15-minute export)
- ⚠EDI 867 interval feed limited to licensed third-party suppliers with active customer relationships
Potomac Electric Power Company (Pepco) Data Access FAQ
How does a DC commercial customer get interval usage data from Pepco?▾
Authorized users download up to 13 months of hourly usage via Green Button (XML/CSV) in My Account. Licensed third-party suppliers receive interval usage automatically through EDI 867 at each billing cycle. There is no public REST API today.
Can a consultant access our Pepco data on our behalf?▾
Yes. Through the Customer Usage Information Authorization in My Account, you can grant a registered provider access to up to 12 months of billing and usage data, and revoke it at any time. Solar contractors use the Green Power Connection authorization for usage data.
Which rate schedule applies to our business?▾
Class is set by demand: GS-LV-ND under 25 kW, GS-LV for demand-metered midsize accounts, MGT-LV (time-metered) at 100 kW or more, and GT-LV at 1,000 kW or more. Verified monthly customer charges are roughly $32.88, $38.75, $237, and $1,908 respectively; per-kWh and demand charges are in the current tariff book.
Is DC a deregulated market, and should we shop for supply?▾
Yes, DC is deregulated. Pepco delivers power while you can buy generation from a licensed supplier or take Pepco SOS. Compare supplier quotes against the DC PSC SOS rate-to-compare; supply is the part of the bill you can negotiate.
How often do Pepco rates change?▾
SOS supply updates seasonally, with the summer rate effective June 1; distribution rates change under DC PSC multi-year rate plans. Always confirm current $ figures in the tariff effective 6/1/2025.
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