Long Island Power Authority (PSEG Long Island) Data Access Guide
Long Island Power Authority (LIPA), operated by PSEG Long Island, is a New York public-power utility serving more than 1.1 million electric customers across Long Island and the Rockaways. For commercial and industrial energy teams it offers strong data access: universal AMI smart meters, free 15-minute interval data and CSV export via the MySmartEnergy portal, a dedicated business RMR portal, and a formal Letter of Authorization process for third-party data sharing. As a public authority that does not own generation, LIPA sets delivery rates while New York's competitive supply market (Long Island Choice) lets customers shop only for the power-supply portion.
How to Get Your Long Island Power Authority (PSEG Long Island) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| My Account Portal | ✓ | — | All | Billing PDFs | Monthly | PDF, web view |
| MySmartEnergy Portal | ✓ | ✓ | All | 15-min interval, hourly/daily/monthly | Near-real-time | Web view, CSV |
| Connect Others | ✓ | ✓ | All | Interval (no billing) | Instant | Web view, CSV |
| Letter of Authorization | — | ✓ | All | Billing + interval meter data | 7-10 business days | PDF, CSV, email |
| RMR Business Portal | ✓ | ✓ | Commercial & Industrial | Consumption, demand, billing | Next-day | Web view, CSV |
| EDI (via ESCO) | — | ✓ | Long Island Choice | 867 usage history | ESCO-dependent | ANSI X12 EDI |
Billing Data Access
PSEG Long Island provides billing data through the My Account portal, with PDF bill downloads and at least 24 months of history. Commercial and industrial customers also use the RMR business portal and LIPA TEMPO payment platform. Third parties obtain billing data through a formal Letter of Authorization (LOA).
What Data Is on Your Long Island Power Authority (PSEG Long Island) Bill
- Billing date and amount due
- Usage summary (kWh consumed)
- Rate information and applicable charges
- Payment history
- Demand readings (business/RMR)
How to Download Long Island Power Authority (PSEG Long Island) Bills (Business & Commercial)
- 01Contact the PSEG Long Island Business Center at 1-800-490-0025 to request RMR access
- 02Receive RMR login credentials by email and change the initial password
- 03Log in at https://supplyenergy.psegliny.com/licust/rmr_signin.html
- 04Review daily/monthly consumption, demand (kW/kWh), rate schedule, and billing detail
- 05Select a date range and export meter-reading data to CSV
How to Download Long Island Power Authority (PSEG Long Island) Bills (Residential)
- 01Visit https://myaccount.psegliny.com/user/login and register with your account number, billing ZIP, name, and email
- 02Verify your email via the confirmation link
- 03Log in and open the Billing or View or Pay Bill section
- 04Select a bill date range (up to 24 months) and open a specific bill
- 05Download the bill as a PDF
Third-Party Access to Long Island Power Authority (PSEG Long Island) Billing Data
Letter of Authorization (LOA) for billing data
- 01Customer downloads the LOA form from the PSEG Long Island Letter of Authorization page
- 02Customer completes account, third-party, data-scope, and date-range fields and signs (wet or electronic)
- 03Customer emails the signed form to BusinessCenterLI@pseg.com with Meter Inquiry in the subject
- 04PSEG acknowledges within 3 business days and verifies with the customer
- 05Third party receives billing data (typically PDF) in 7-10 business days
Third-party RMR access
- 01Third party (aggregator/consultant) contacts PSEG Long Island with the customer account numbers
- 02Customer provides written authorization (LOA or custom letter) naming the third party and accounts
- 03PSEG enrolls the third party in RMR after customer verification and issues separate credentials
- 04Third party logs into RMR to view and export meter, demand, and billing data
Want to understand the charges on your bill?
See the Long Island Power Authority (PSEG Long Island) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
PSEG Long Island has universal AMI smart meter coverage. The free MySmartEnergy portal exposes 15-minute, hourly, daily, and monthly consumption with weather correlation and CSV export. Business customers get more detailed consumption and demand data through the RMR portal. Third parties access interval data instantly and free via the MySmartEnergy Connect Others feature, or formally via LOA.
How to Download Long Island Power Authority (PSEG Long Island) Interval Data via Green Button
- 01MySmartEnergy export aligns with the NAESB REQ.21 / ESPI (Green Button) data standard
- 02Log into https://mysmartenergy.psegliny.com/
- 03Select the desired interval (15-minute, hourly) and date range
- 04Click Download to export CSV compatible with Green Button / ESPI tooling
- 05Formal Green Button certification status is unconfirmed — verify with PSEG before relying on it
How to Download Long Island Power Authority (PSEG Long Island) Interval Data via Portal
- 01Create or log into MySmartEnergy at https://mysmartenergy.psegliny.com/
- 02Open the usage dashboard and choose 15-Minute or Hourly view
- 03Use the date-range selector for historical data (2+ years)
- 04Click Download to export to CSV (date, time, kWh, temperature, demand)
- 05Import the CSV into analytics or energy-management software
Interval data is essential for rate comparison and TOU analysis.
See which Long Island Power Authority (PSEG Long Island) rate schedule is best for your usage pattern →Third-Party API Access
PSEG Long Island does not yet offer a public, programmatic API for customer data. The fastest third-party path is the MySmartEnergy Connect Others feature (free, instant, interval data only), while the Letter of Authorization covers billing and interval data via file delivery. New York's statewide Integrated Energy Data Resource (IEDR) platform — which LIPA joined in 2021 — is expected to provide an authorization portal and API wrapper for automated third-party data retrieval.
How to Register as a Long Island Power Authority (PSEG Long Island) API Vendor
- 01For interval data, have the customer add you via MySmartEnergy Connect Others (Profile > Connect Others)
- 02Accept the email invitation and log into MySmartEnergy to view/export CSV
- 03For billing data, obtain a signed LOA and email it to BusinessCenterLI@pseg.com
- 04Monitor the IEDR program for the future automated authorization portal and API
EDI (Electronic Data Interchange)
PSEG Long Island, as operator of LIPA's system, exchanges EDI transactions with ESCOs under New York's retail-access program (Long Island Choice) rather than offering customer-facing EDI data export. ESCOs use EDI 814 for enrollment and EDI 867 for historical usage requests. There is no general-purpose customer or third-party EDI data-access API; the future IEDR platform is expected to standardize EDI-based data sharing.
Supported Long Island Power Authority (PSEG Long Island) EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 814 | Enrollment Request/Response | ESCO enrollment and change requests under Long Island Choice |
| 867 | Historical Usage Request/Response | Meter/consumption data delivered to ESCOs |
| 810 | Invoice | Unbundled billing between utility and ESCO |
| 820 | Remittance Advice | Payment remittance information |
| 824 | Application Advice | Notification / status of EDI transactions |
How to Enroll in Long Island Power Authority (PSEG Long Island) EDI
- 01Customer enrolls with an ESCO under the Long Island Choice program
- 02ESCO submits an EDI 814 enrollment request to PSEG Long Island
- 03PSEG responds with an EDI 814 accept/reject
- 04ESCO submits EDI 867 historical-usage requests to retrieve consumption data
Rate Schedules & Tariff Analysis
PSEG Long Island C&I bills have two big parts: PSEG's delivery & system charges (the rate codes below) and a separate, market-based Power Supply Charge that fluctuates monthly. For larger customers, per-kW demand charges — which jump in the summer (Jun 1-Sep 30) and on the highest TOU rate (284) reach roughly $59/kW at peak — dominate. Rate selection is largely automatic based on usage/demand thresholds, but qualifying customers can elect TOU alternatives (294, 284) to manage peak exposure.
Long Island Power Authority (PSEG Long Island) Rate Schedule List
| Schedule | Applicability |
|---|---|
| Rate 280 – Small General Use | Small commercial under ~7 kW; energy-only |
| Rate 281 – Large General Use | Commercial 7-145 kW with demand charges |
| Rate 285 – Large Multiple Periods | Over 145 kW, mandatory TOU |
| Rate 284 / 294 – TOU alternatives | Optional time-of-use options for qualifying large customers |
Long Island Power Authority (PSEG Long Island) Rate Features & TOU Details
- Delivery charges are separate from a monthly, market-based Power Supply Charge (~11 cents/kWh standard)
- Summer season is June 1-September 30; winter is October 1-May 31
- Demand charges apply on Rates 281, 285, 284, and 294 and spike in summer
- Rate is assigned by usage/demand thresholds: under 7 kW (280), 7-145 kW (281), over 145 kW (285)
- TOU options (292, 294, 284) reward shifting load off the afternoon/evening peak
- A demand ratchet sets a floor for billed demand on Rate 281
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full Long Island Power Authority (PSEG Long Island) Rate Optimization Guide →Other Data Access Programs
Connect Others (MySmartEnergy secondary user)
Free, instant feature letting a customer grant a third party read-only access to their MySmartEnergy interval data (no billing info), revocable at any time — the preferred path for consultants needing usage data.
- 01Customer logs into MySmartEnergy and opens Profile > Connect Others
- 02Customer enters the third party's name and email and accepts the terms
- 03Third party receives an email invitation and logs into MySmartEnergy
- 04Third party views and exports interval data to CSV
Integrated Energy Data Resource (IEDR)
New York statewide platform LIPA joined in 2021 to standardize third-party data access. When fully implemented it is expected to provide a customer authorization portal, automated 867 usage retrieval, and an API wrapper for non-EDI systems.
- 01Monitor the NYSERDA IEDR program page for rollout and pilot details
- 02Plan to migrate third-party workflows from LOA to IEDR-based authorization
- 03Customers will authorize and revoke data sharing through the IEDR dashboard
Dynamic Load Management (CSRP / DLRP)
Demand-response aggregator programs (Commercial System Relief Program and Distribution Load Relief Program). Approved aggregators gain access to enrolled-customer account and baseline consumption data for event settlement.
- 01Aggregator demonstrates systems, compliance, insurance, and tariff understanding
- 02Aggregator enrolls customers electronically through PSEG's system
- 03Aggregator accesses baseline and performance data for enrolled accounts
Limitations & Considerations
- ⚠No public, programmatic API for customer data yet (IEDR expected to add one).
- ⚠Connect Others shares interval data only — not billing or payment information.
- ⚠Letter of Authorization is a manual process with a 7-10 business day turnaround (up to 20 for complex requests).
- ⚠Formal Green Button certification status is unconfirmed; export is ESPI-aligned rather than certified.
- ⚠Customer-facing EDI is not offered; EDI 814/867 is available only to ESCOs under Long Island Choice.
- ⚠Historical data beyond 24 months via LOA carries fees ($40+ for billing; $10 per meter-reading period for interval).
Long Island Power Authority (PSEG Long Island) Data Access FAQ
How do commercial customers get interval data from PSEG Long Island?▾
Through the free MySmartEnergy portal, which provides 15-minute, hourly, daily, and monthly consumption with weather correlation and one-click CSV export, plus 2+ years of history. Business customers can also use the RMR portal for additional demand and power-factor detail.
Can a consultant or aggregator access our data?▾
Yes. For interval data, the fastest path is MySmartEnergy Connect Others — free, instant, and revocable, but usage data only. For billing data (or formal recurring access), the customer submits a signed Letter of Authorization to BusinessCenterLI@pseg.com, with delivery in 7-10 business days.
Does PSEG Long Island offer a public API?▾
Not yet. There is no public, programmatic customer-data API today; access is via portals (MySmartEnergy, RMR), Connect Others, and the Letter of Authorization. New York's statewide IEDR platform, which LIPA joined in 2021, is expected to add an authorization portal and API for automated third-party retrieval.
Can commercial customers choose their electricity supplier?▾
Partially. Customers cannot choose their delivery provider — PSEG Long Island delivers all power for LIPA. Through the voluntary Long Island Choice program, eligible customers can buy the power-supply portion from a competitive ESCO while still paying PSEG Long Island for delivery.
How are large commercial customers charged for demand?▾
Larger rates (281, 285, 284, 294) bill a per-kW demand charge that rises in summer (Jun 1-Sep 30). For example, Rate 281 secondary demand is $22.22/kW in summer, Rate 285 peak demand reaches $30.00/kW (secondary), and Rate 284's peak demand reaches $59.02/kW (secondary).
Does PSEG Long Island support Green Button?▾
MySmartEnergy CSV export aligns with the NAESB REQ.21 / ESPI standard used by Green Button, but formal Green Button Alliance certification status is unconfirmed in public sources. Verify current status with PSEG Long Island before relying on certified Download My Data or Connect My Data.
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