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Full detail: Where this data comes from
Public Service Enterprise Group (PSEG) is a diversified energy holding company headquartered in Newark, New Jersey. Its regulated utility subsidiary Public Service Electric and Gas (PSE&G) is New Jersey's largest electric and gas distribution utility, and PSEG Long Island operates the transmission and distribution system on behalf of the Long Island Power Authority. PSEG sits squarely in the utility-retailer tier of the United States energy value chain — it meters, bills, and serves end customers, and it sells generation into the PJM wholesale market rather than publishing that market's data itself. Its API posture is honestly closed. There is no developer portal: developer., developers., api., docs., and data.pseg.com do not resolve, and /developers, /api, and /docs on pseg.com return the site's soft-404 page. Green Button is present only as a file: PSEG Long Island's MySmartEnergy FAQ states customers can "download data information in CSV or Green Button (.XML) format," which is Download My Data behind a customer login, not Connect My Data. There is no documented programmatic third-party access to customer usage data — in the New Jersey BPU AMI docket PSE&G described manual secondary-user sharing, a Letter of Authorization with spreadsheets emailed back, and EDI for BPU-licensed suppliers. Grid data is equally closed: the PSE&G NJ and PSEG Long Island outage maps are vendor-hosted KUBRA StormCenter applications with no published data API. Open market data for this territory comes from PJM and the EIA, not from PSEG.
APIs.json: https://raw.githubusercontent.com/api-evangelist/pseg/refs/heads/main/apis.yml
- Energy
- United States
- Utilities
- Electricity
- Gas
- Smart Metering
- Green Button
- Grid
- New Jersey
- Created: 2026-07-27
- Modified: 2026-07-27
No public APIs are documented by PSEG. See review.yml for every URL probed and the result.
- Home market: United States (New Jersey via PSE&G; Long Island, New York via PSEG Long Island)
- Mandate regime:
green-button-voluntary— no US federal consumer energy data mandate. The New Jersey BPU's PSE&G AMI proceeding directs Green Button-referenced meter data sharing with non-discriminatory third-party access, which is a state regulatory direction rather than a consumer data right. - Mandate status:
live-claimed-unverified— Green Button Download My Data is documented in PSEG Long Island's public MySmartEnergy FAQ but reachable only after a customer login, so it could not be verified anonymously, and no Green Button Alliance certification listing names PSEG. Green Button Connect My Data is verifiably absent. - Data standard: Green Button / NAESB REQ.21 ESPI, Download My Data profile only, as a CSV/XML file export. No version published. Legacy retail-choice EDI for licensed third-party suppliers.
- Consumer data API: No. Customer usage data leaves PSEG only as a self-service file download, a view-only secondary user inside MyMeter/MySmartEnergy, a Letter of Authorization answered with emailed spreadsheets, or EDI.
- Market data open: No. The PSE&G NJ and PSEG Long Island outage maps are KUBRA StormCenter applications hosted at kubra.io with no documented data API. PJM and the U.S. EIA publish the open data for this footprint.
- Access gate:
customer-account-required— no signup, no keys, no application form, no sandbox. You must be a customer and log in atnj.myaccount.pseg.com. - Auth model: Session login only. No OAuth 2.0, no API keys, no mTLS, and no OpenID Connect discovery document served on any probed host.
Everything below is a probe record. Nothing was generated to fill a gap.
well-known/pseg-well-known.yml— eight hosts × the full/.well-known/discovery set. Result: none. Read the note: the Sitecore-hosted PSEG sites answer extensionless/.well-known/paths with HTTP 200 and an HTML page, a soft 404. Every 200 was opened and confirmed to be HTML, never a document. NoWellKnownpointer is wired inapis.yml, because there is no well-known surface to point at.packages/pseg-packages.yml— zero first-party SDKs.github.com/PSEGLIis a genuine PSEG Long Island GitHub organization (contact[email protected], created 2018) with zero public repositories; there is no parent-company org. The only code that exists is community work that logs in as the customer: the PyPIpseggas-meter utility (unmaintained since 2019) and theha-psegliHome Assistant integration (actively maintained).security/pseg-domain-security.yml— TLS 1.3, HSTS with a one-year max-age, SPF and DMARC atp=rejecton bothpseg.comandpsegliny.com; no DNSSEC and no CAA on either. Solid mail and transport hygiene, no DNS hardening.llms/pseg-llms.txt— generated, because PSEG serves no/llms.txton any host. Written for the agent that arrives looking for a PSEG API: it leads with what does not exist, then the four human-mediated routes to customer data, then points at PJM and the EIA for the data that is actually open.
No vulnerability-disclosure policy, bug bounty or trust center was found — /security, /cybersecurity and /responsible-disclosure all soft-404, no security.txt on any host, and no HackerOne/Bugcrowd/Intigriti program. Nothing was written for those rather than record an absence as a program.
- Website
- Website — PSEG Long Island
- About
- Blog
- GitHubOrganization — PSEG Long Island, zero public repositories
- Login
- Support — PSE&G New Jersey
- Support — PSEG Long Island
- TermsOfService / PrivacyPolicy — both live on one page; the privacy policy was last updated 2025-01-15
- Rates — filed electric tariffs, not data
- Documentation — MySmartEnergy FAQ, the Green Button (.XML) download reference
- Documentation — PSE&G NJ smart meters and MyMeter
- Kin Lane — [email protected]