The United Kingdom has committed to achieving net-zero greenhouse gas emissions by 2050, with an interim target of decarbonising the electricity system by 2030. Meeting these targets requires not only a massive expansion of renewable generation capacity but also a fundamental transformation of the energy system's architecture. The traditional model — in which a small number of large, centralised power stations supply passive consumers through a one-way grid — is being replaced by a radically different paradigm.
In this new paradigm, millions of distributed energy resources (DERs) — solar panels on rooftops, batteries in garages, electric vehicles in driveways, and smart appliances in kitchens — are active participants in the energy system. They generate, store, and consume energy in response to real-time price signals and grid conditions. Consumers are becoming "prosumers," simultaneously producing and consuming energy. Communities are forming Smart Local Energy Systems (SLES), managing their own local energy flows. Aggregators are pooling the flexibility of thousands of small assets into Virtual Power Plants (VPPs) that can respond to system needs at scale.
This transformation is not merely a technical challenge; it is a digital one. The energy system of the future is, at its core, a digital system. It requires real-time data flows, sophisticated algorithms, secure communications, and seamless interoperability between a vast and heterogeneous array of devices, platforms, and market participants. Without a coherent digital architecture, the physical transformation of the energy system cannot be realised.
The National Energy System Operator (NESO), created in October 2024, has recognised this imperative. Its Energy Sector Digitalisation Plan, published in 2025, sets out a vision for a digitised energy system and identifies the key building blocks required. Ofgem has similarly opened a consultation on energy digitalisation governance and architectural coordination, acknowledging that the current fragmented approach is creating risks and inefficiencies.
Yet the challenge remains: how does the UK move from a landscape of pilots, proofs of concept, and competing standards to a coherent, interoperable, and secure digital energy system? This white paper argues that the answer lies in adopting a proven model from the world of technology standardisation — one that has already delivered transformative results in mobile telecommunications and the internet.