Scottish and Southern Electricity Networks

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.

Scottish and Southern Electricity Networks publishes 2 APIs on the APIs.io network: Catalog API and Dataset API. Tagged areas include Energy, United Kingdom, Utilities, Electricity, and Grid.

Scottish and Southern Electricity Networks’ developer surface includes authentication, getting-started guide, support, engineering blog, signup flow, documentation, developer portal, and 29 more developer resources.

🌐 Visit website 📡 Source on GitHub

51.6/100 developing ▬ flat Agent 33/100 agent ready saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Energy United Kingdom Utilities Electricity Grid Distribution Network Operator Transmission Smart Metering Open Data Flexibility Renewables DER

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 51.6/100 · developing

Contract Quality 12.2 / 21

Developer Ergonomics 11.2 / 17

Access Clarity 5.8 / 17

Operational Transparency 3.5 / 11

Contract Governance 0.5 / 10

Discoverability 6.5 / 9

Regulatory Posture 7.9 / 15

Agent readiness — 33/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Energy & Utilities regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/ssen: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

SSEN Distribution Data Portal API

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...

SSEN Power Track Real Time Outage API

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, esti...

SSEN NeRDA (Near Real-time Data Access) API

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 connecti...

Scottish and Southern Electricity Networks Catalog API

API to enumerate datasets

Scottish and Southern Electricity Networks Dataset API

API to work on records

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Explore API

OPEN COLLECTION

Rate Limits 1

Documented rate limits and quota policies.

Ssen Rate Limits

1 limits

RATE LIMITS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ssen Authentication

apiKey · 1 scheme

SECURITY

Ssen Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Ssen Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Ssen Agentic Access

16 operations

16 operations · 0 acting

AGENTIC

Resources

Get Started 7

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Portal

Portal

Portal

Portal

Portal

Portal

Scroll for all 7

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Access & Security 5

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

Learn 1

Tutorials, courses, talks, and written guidance

YouTube

YouTube

Operate 4

Status, limits, changes, and where to get help

RateLimits

Roadmap

Support

HelpCenter

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 5

The organization behind the API

Blog

Website

Website

Website

LinkedIn

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

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.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-09-03'
  method: derived
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: '0.23'
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
  tags_raw:
  - 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
  tags_raw:
  - 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-catalog-api
  name: Scottish and Southern Electricity Networks Catalog API
  description: API to enumerate datasets
  humanURL: https://data.ssen.co.uk/
  baseURL: https://data-api.ssen.co.uk/api/3/action
  tags:
  - Catalog
  properties:
  - type: OpenAPI
    url: openapi/ssen-catalog-api-openapi.yml
  - 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/
- aid: ssen:ssen-dataset-api
  name: Scottish and Southern Electricity Networks Dataset API
  description: API to work on records
  humanURL: https://data.ssen.co.uk/
  baseURL: https://data-api.ssen.co.uk/api/3/action
  tags:
  - Dataset
  properties:
  - type: OpenAPI
    url: openapi/ssen-dataset-api-openapi.yml
  - 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: Overlay
  url: overlays/ssen-transmission-opendatasoft-explore-v2.1-overlay.yaml
- 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: X-MCPServerCandidate
  url: mcp/ssen-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- 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

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