UK Power Networks
UK Power Networks is the distribution network operator for London, the South East and the East of England, running three electricity distribution licence areas — London Power Networks (LPN), South Eastern Power Networks (SPN) and Eastern Power Networks (EPN) — and the Distribution System Operator function that sits on top of them. It is a poles-and-wires business: it owns the substations, cables and overhead lines, holds the network capacity and connection queue, and handles more than 70,000 connection enquiries a year, but it does not sell electricity and has no retail customer relationship to expose. Its API posture is the exact inverse of the usual utility story. Britain never legislated a consumer energy data right — there is no CDR equivalent, no Green Button obligation, and the one thing the UK did mandate was infrastructure (the Smart DCC carrying smart-meter traffic under the Smart Energy Code), which produces no public API. What did produce an API was Ofgem's Data Best Practice and digitalisation obligation on network licensees, and UK Power Networks has actually implemented it: a live Opendatasoft-hosted Open Data Portal serving 136 datasets over a documented, versioned REST API with a real OpenAPI 3.0.3 contract published at its own domain, a DCAT-AP catalogue export, and an official open-source Python client (ukpyn) on PyPI. So the split is unusually sharp and unusually positive on one side: market and network data is genuinely open and genuinely queryable — live faults, carbon intensity, embedded capacity register, substation and feeder-level smart meter aggregates, LTDS tables, flexibility dispatches, curtailment events — while consumer data is not merely closed but absent, because as a DNO it holds no billable customer account to hand over. The gate is free and self-serve rather than open: the catalogue and 36 of 136 datasets answer anonymously, but the other 99 return HTTP 403 until you register a free account and mint an API key.
UK Power Networks is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
UK Power Networks is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.
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