Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Data Access Guide
The Puerto Rico Electric Power Authority (PREPA) owns the electric infrastructure serving roughly 1.5 million customers across Puerto Rico, with LUMA Energy operating transmission, distribution, and customer-facing systems under a 15-year contract since 2021. C&I customers access billing data through the Mi LUMA portal, while interval data access awaits the island-wide Itron smart meter rollout running through approximately 2028.
How to Get Your Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| Mi LUMA Portal | ✓ | — | Residential, commercial, industrial, government | Billing, payment history, monthly kWh consumption | Monthly | PDF / Web / Mobile |
| Manual Data Sharing | ✓ | ✓ | Any (case-by-case with NDA and written authorization) | Billing PDFs, periodic reports | Periodic / on request | PDF / CSV |
| Mi LUMA Outage API (undocumented) | — | ✓ | Public (unsupported) | Outage status by region/municipality | Near real-time | JSON |
| Smart Meter Interval Data (future) | ✓ | — | All customers post-deployment (2025-2028 rollout) | Interval consumption (granularity TBD) | TBD | TBD |
Billing Data Access
LUMA Energy provides billing access through the Mi LUMA web portal and mobile app, with 12 months of bill and payment history available as PDF downloads. There is no automated third-party authorization; consultants rely on customer-shared PDFs or case-by-case manual arrangements with LUMA.
What Data Is on Your Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Bill
- Current and historical bills (12-month history)
- Payment history (12 months)
- Account balance and due dates
- Detailed billing breakdown by charge type
- Meter and service information
- Consumption history in kWh
How to Download Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Bills (Business & Commercial)
- 01Register the commercial account at https://miacceso.lumapr.com using the business EIN
- 02Log into Mi LUMA to view invoice detail and payment history (expanded business features as of December 2025)
- 03Download bill PDFs for each billing period
- 04Call 1-844-888-5862 and request a business customer representative for account manager support
- 05For automated reporting needs, request a manual data sharing arrangement with LUMA
How to Download Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Bills (Residential)
- 01Register at https://miacceso.lumapr.com with account number, last 4 of SSN, and email
- 02Log into https://miluma.lumapr.com (two-factor authentication available)
- 03Open the Account tab and Billing History for the past 12 months of bills
- 04Download individual bills as PDF
- 05View Payment History from the account dashboard
- 06Optionally install the Mi LUMA mobile app (iOS/Android) with the same credentials
Third-Party Access to Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Billing Data
Manual data sharing (case-by-case)
- 01Customer contacts LUMA at 1-844-888-5862 and names the third party and scope of access
- 02Third party signs a data sharing NDA with LUMA
- 03Customer provides written authorization
- 04LUMA sends periodic reports (PDF/CSV) to the third party, or the customer downloads and forwards bill PDFs
Want to understand the charges on your bill?
See the Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
Customer-accessible interval data is not yet available. PREPA's legacy TWACS-based AMI (1+ million endpoints as of 2020) does not expose interval data through customer portals. LUMA's Itron smart meter deployment (2025-2028) is expected to add interval data viewing to Mi LUMA in a future Phase 3 portal enhancement, with granularity and export formats still unannounced.
Interval data is essential for rate comparison and TOU analysis.
See which Puerto Rico Electric Power Authority (PREPA / LUMA Energy) rate schedule is best for your usage pattern →Third-Party API Access
PREPA/LUMA publishes no developer API or third-party data program. The only known endpoints are undocumented Mi LUMA outage APIs returning JSON outage status by region and municipality — no billing or consumption data. Energy management platforms must rely on customer-shared PDFs or negotiate custom agreements with LUMA's business development team until a smart-meter-era API emerges (likely post-2028).
Available Puerto Rico Electric Power Authority (PREPA / LUMA Energy) API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| Regions currently without service | https://api.miluma.lumapr.com/miluma-outage-api/outage/regionsWithoutService | GET | JSON |
| Municipality/town-level outage data | https://api.miluma.lumapr.com/miluma-outage-api/outage/municipality/towns | GET | JSON |
How to Register as a Puerto Rico Electric Power Authority (PREPA / LUMA Energy) API Vendor
- 01Contact LUMA business development at 1-844-888-5862 and propose a data access use case
- 02Negotiate a custom data sharing framework (NDA, data security agreement, customer consent mechanism)
- 03Monitor PREB dockets at https://energia.pr.gov/dockets/ for data access standards directives
- 04Prepare ESPI/Green Button-aligned integration architecture for the post-smart-meter API era
EDI (Electronic Data Interchange)
PREPA/LUMA does not support ANSI X12 EDI transaction sets (810, 814, 820, 867, 997) for customer billing, consumption, or account data, and offers no EDI trading partner enrollment. C&I customers with EDI requirements should contact LUMA business customer service to discuss alternative delivery (email CSV/PDF reporting) and escalate a business case to LUMA's technology team.
Sources
Rate Schedules & Tariff Analysis
Tariff and rate schedule information for PREPA/LUMA is published through the LUMA website and Puerto Rico Energy Bureau regulatory filings rather than a consolidated online tariff book. C&I customers should pull current rate schedules from PREB dockets or request them through LUMA business customer service.
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Rate Optimization Guide →Sources
Other Data Access Programs
Customer Battery Energy Sharing (CBES) Program
Pilot program letting residential battery owners (including Tesla Powerwall) participate in aggregated grid services with auto-enrollment; PREB approved an expanded program in 2025. Data access is limited to program-specific battery charge/discharge data.
Net Metering & Renewable Interconnection
Formal interconnection programs for rooftop solar and distributed generation. Generation data is typically accessed via inverter manufacturer portals (SolarEdge, Enphase) rather than LUMA systems; LUMA receives net metering data for billing only.
PREB Public Records & Regulatory Data
The Puerto Rico Energy Bureau publishes system-wide operational data, tariffs, and rate schedules in its dockets; customers can also file formal public information requests (weeks-to-months timelines, not suited to automation).
Limitations & Considerations
- ⚠No Green Button Download My Data or Connect My Data (no ESPI, no OAuth third-party authorization)
- ⚠No EDI transaction support (810/814/820/867/997) and no trading partner enrollment
- ⚠No published developer API; the only known endpoints are undocumented outage APIs (JSON, outage data only)
- ⚠Interval/smart meter data is unavailable until the Itron AMI rollout (2025-2028) and a future Mi LUMA portal phase
- ⚠Billing history is limited to 12 months in Mi LUMA, PDF format only
- ⚠Third-party access requires manual PDF sharing or case-by-case agreements with LUMA
Puerto Rico Electric Power Authority (PREPA / LUMA Energy) Data Access FAQ
How do C&I customers get billing data from PREPA/LUMA?▾
Register each account in the Mi LUMA portal at https://miluma.lumapr.com (business accounts register with their EIN at https://miacceso.lumapr.com). The portal provides 12 months of bills and payment history, with individual bills downloadable as PDF. Industrial and government customers gained expanded Mi LUMA features in December 2025, including invoice detail and payment history.
Is interval or smart meter data available from LUMA?▾
Not yet. LUMA's Itron smart meter deployment began in April 2025 in San Juan and runs roughly three years island-wide (about 2028). Interval data viewing is planned for a future Mi LUMA Phase 3 portal enhancement, but granularity (likely 15- or 30-minute) and export formats have not been announced. Legacy TWACS AMI does not expose customer interval data.
Does PREPA/LUMA support Green Button or EDI?▾
No. As of May 2026 there is no Green Button Download My Data or Connect My Data (no ESPI endpoints, no OAuth authorization), and no ANSI X12 EDI support (810, 814, 820, 867). Energy data platforms that depend on Green Button or EDI cannot integrate automatically with LUMA today.
How can a consultant or energy manager access a client's PREPA data?▾
Only through manual workflows. The customer downloads bill PDFs from Mi LUMA and shares them, or the customer and consultant contact LUMA at 1-844-888-5862 to set up a case-by-case manual reporting arrangement, which typically requires an NDA and written customer authorization. There is no automated Share My Data program.
Is there any API for PREPA/LUMA data?▾
Only an undocumented outage API. The endpoints at https://api.miluma.lumapr.com/miluma-outage-api/ return JSON outage status by region and municipality — useful for multi-site outage monitoring, but they carry no billing or consumption data and are unsupported. A consumption data API is plausible only after smart meter deployment completes around 2028.
Who regulates PREPA and where do tariffs live?▾
The Puerto Rico Energy Bureau (PREB) regulates PREPA/LUMA. Rate schedules, tariffs, and system operational data are published through PREB dockets at https://energia.pr.gov/dockets/ rather than a consolidated online tariff book. C&I customers can also request rate information through LUMA business customer service.
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