aid: ssen
url: https://raw.githubusercontent.com/api-evangelist/ssen/refs/heads/main/apis.yml
name: Scottish and Southern Electricity Networks
kind: company
description: Scottish and Southern Electricity Networks (SSEN) is the SSE plc electricity
  networks business in the United Kingdom, operating the poles-and-wires layer rather
  than selling energy. SSEN Distribution is the licensed Distribution Network Operator
  for two GB licence areas — Scottish Hydro Electric Power Distribution (SHEPD) in
  the north of Scotland and Southern Electric Power Distribution (SEPD) in central
  southern England — serving over 3.9 million homes and businesses, while SSEN Transmission
  owns and operates the high-voltage transmission system for the north of Scotland.
  Its API posture is the classic network-distributor split — grid and market data
  are genuinely open, consumer data is not offered at all. SSEN runs a CKAN open data
  portal whose anonymous Action API serves 45 datasets, an anonymous real-time outage
  API behind Power Track, a key-gated near-real-time power-flow API (NeRDA) covering
  EHV/HV/LV networks, and an Opendatasoft Explore API over 60 transmission datasets.
  There is no consumer data-portability mandate in Great Britain equivalent to the
  Australian Consumer Data Right or Ontario's Green Button regulation, and SSEN publishes
  no API through which a third party can obtain an individual customer's usage or
  billing data. What Britain mandated instead is infrastructure and disclosure — smart
  meter traffic runs through the licensed Smart DCC monopoly, and Ofgem's Data Best
  Practice licence condition under RIIO-ED2 obliges network licensees to treat data
  assets as Presumed Open subject to Open Data Triage. SSEN implements that obligation
  visibly — it became the first DNO to publish full smart meter half-hourly consumption
  data, aggregated to no fewer than five properties per LV feeder, and attaches published
  Open Data Triage records to its datasets.
image: https://www.ssen.co.uk/apple-touch-icon.png
tags:
- Energy
- United Kingdom
- Utilities
- Electricity
- Grid
- Distribution Network Operator
- Transmission
- Smart Metering
- Open Data
- Flexibility
- Renewables
- DER
created: '2026-07-27'
modified: '2026-07-27'
specificationVersion: '0.19'
apis:
- aid: ssen:ssen-distribution-data-portal-api
  name: SSEN Distribution Data Portal API
  description: The public CKAN 2.10.10 Action API behind the SSEN Distribution Data
    Portal, serving 45 open datasets covering substations, LV feeder smart meter half-hourly
    usage, the Embedded Capacity Register, flexibility market registers, Distribution
    Future Energy Scenarios, licence area boundaries and Long Term Development Statements.
    Verified anonymously — no key, no registration. Most datasets carry a CC BY 4.0
    licence.
  humanURL: https://data.ssen.co.uk/
  baseURL: https://data-api.ssen.co.uk/api/3/action
  tags:
  - Open Data
  - CKAN
  - Catalog
  - Electricity
  - Grid
  properties:
  - type: Documentation
    url: https://data.ssen.co.uk/
  - type: APIReference
    url: https://data-api.ssen.co.uk/api/3/action/help_show?name=package_search
  - type: Website
    url: https://www.ssen.co.uk/
- aid: ssen:ssen-power-track-real-time-outage-api
  name: SSEN Power Track Real Time Outage API
  description: Anonymous JSON API behind the SSEN Power Track map, returning planned
    and unplanned outages on the SSEN Distribution network with fault reference, type,
    latitude/longitude, estimated restoration time and affected postcodes, plus a
    per-fault lookup by reference. Published as an API resource on the Real Time Outage
    Dataset under CC BY 4.0 and verified live with no credentials.
  humanURL: https://data.ssen.co.uk/@ssen-distribution/realtime_outage_dataset
  baseURL: https://external.distribution.prd.ssen.co.uk/opendataportal-prd/v4/api
  tags:
  - Outages
  - Real Time
  - Open Data
  - Electricity
  properties:
  - type: Documentation
    url: https://data.ssen.co.uk/@ssen-distribution/realtime_outage_dataset
  - type: Documentation
    url: https://powertrack.ssen.co.uk/powertrack
- aid: ssen:ssen-nerda-api
  name: SSEN NeRDA (Near Real-time Data Access) API
  description: Near real-time power flow data from SSEN Distribution's EHV, HV and
    LV networks, drawn from SCADA PowerOn, LV monitoring equipment, the load model
    forecasting tool, the connectivity model and the Long Term Development Statement.
    The documented endpoints are a static substation endpoint per licence area (nerdastatic-SEPD,
    nerdastatic-SHEPD) and time-series endpoints (nerdart_after, nerdart_between)
    queried by nerda_measurement_id and ISO 8601 timestamps. Access requires a free
    SSEN account, acceptance of the portal terms and conditions, and an API key generated
    in the portal API console; anonymous calls to the documented endpoints return
    404.
  humanURL: https://www.ssen.co.uk/our-services/tools-and-maps/near-real-time-data-access-nerda-portal/
  baseURL: https://nerda.opengrid.com/api
  tags:
  - Real Time
  - Grid
  - Power Flow
  - Substations
  - Flexibility
  properties:
  - type: Documentation
    url: https://www.ssen.co.uk/our-services/tools-and-maps/near-real-time-data-access-nerda-portal/
  - type: APIReference
    url: https://data-api.ssen.co.uk/dataset/195500da-46ae-4698-939c-f7f4293f7b43/resource/c90db7e1-c666-4092-998c-b71d782b16db/download/nerda-api-guide.pdf
  - type: Documentation
    url: https://data.ssen.co.uk/@ssen-distribution/nerda_opengrid_dashboard
  - type: Portal
    url: https://nerda.ssen.co.uk/
- aid: ssen:ssen-transmission-open-data-explore-api
  name: SSEN Transmission Open Data Explore API
  description: The Opendatasoft Explore API v2.1 served from the SSEN Transmission
    Open Data Portal, exposing 60 CC BY 4.0 transmission datasets — Electricity Ten
    Year Statement circuits and fault levels, ground investigation points and related
    network records — through 16 read-only GET endpoints for catalog search, dataset
    records, facets and exports (CSV, Parquet, GPX, DCAT). Verified anonymously; an
    optional apikey query parameter exists for private datasets.
  humanURL: https://ssentransmission.opendatasoft.com/
  baseURL: https://ssentransmission.opendatasoft.com/api/explore/v2.1
  tags:
  - Open Data
  - Transmission
  - Catalog
  - Scotland
  properties:
  - type: OpenAPI
    url: openapi/ssen-transmission-opendatasoft-explore-v2.1-openapi.json
  - type: Overlay
    url: overlays/ssen-transmission-opendatasoft-explore-v2.1-overlay.yaml
  - type: Documentation
    url: https://ssentransmission.opendatasoft.com/
  - type: APIReference
    url: https://ssentransmission.opendatasoft.com/api-console/explore/v2.1/
  - type: Console
    url: https://ssentransmission.opendatasoft.com/api/explore/v2.1/console
  - type: Support
    url: https://ssentransmission.opendatasoft.com/pages/faqs/
  - type: SecurityTxt
    url: well-known/ssen-security.txt
  - type: Website
    url: https://www.ssen-transmission.co.uk/
common:
- type: AgenticAccess
  url: agentic-access/ssen-agentic-access.yml
- type: DomainSecurity
  url: security/ssen-domain-security.yml
- type: Authentication
  url: authentication/ssen-authentication.yml
- type: Conventions
  url: conventions/ssen-conventions.yml
- type: ErrorCatalog
  url: errors/ssen-problem-types.yml
- type: RateLimits
  url: rate-limits/ssen-rate-limits.yml
- type: Lifecycle
  url: lifecycle/ssen-lifecycle.yml
- type: Conformance
  url: conformance/ssen-conformance.yml
- type: DataModel
  url: data-model/ssen-data-model.yml
- type: WellKnown
  url: well-known/ssen-well-known.yml
- type: SecurityTxt
  url: well-known/ssen-security.txt
- type: VulnerabilityDisclosure
  url: security/ssen-vulnerability-disclosure.yml
- type: Security
  url: https://ssentransmission.opendatasoft.com/.well-known/security.txt
- type: MCPServer
  url: mcp/ssen-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/ssen-llms.txt
- type: Roadmap
  url: https://data.ssen.co.uk/@ssen-distribution/ssen-distribution-data-roadmap
- type: DeveloperPortal
  url: https://data.ssen.co.uk/
- type: GettingStarted
  url: https://raw.githubusercontent.com/datopian/ssen-content/refs/heads/dev/assets/Portal_Guide.pdf
- type: Support
  url: https://www.ssen.co.uk/about-ssen/contact-us/
- type: HelpCenter
  url: https://data.ssen.co.uk/faq
- type: Blog
  url: https://www.ssen.co.uk/news-views/
- type: SignUp
  url: https://data.ssen.co.uk/auth/signup
- type: Login
  url: https://data.ssen.co.uk/auth/signin
- type: TermsOfService
  url: https://data.ssen.co.uk/terms-and-conditions
- type: PrivacyPolicy
  url: https://www.ssen.co.uk/privacy-notice/
- type: Website
  url: https://www.ssen.co.uk/
- type: Documentation
  url: https://data.ssen.co.uk/
- type: Portal
  url: https://data.ssen.co.uk/
- type: Portal
  url: https://ssentransmission.opendatasoft.com/
- type: Portal
  url: https://nerda.ssen.co.uk/
- type: Website
  url: https://www.ssen-transmission.co.uk/
- type: Website
  url: https://ssen-innovation.co.uk/
- type: LinkedIn
  url: https://www.linkedin.com/company/ssen
- type: YouTube
  url: https://www.youtube.com/channel/UCUCGdsJ4g3drX9GBvqRH01A
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com