What are DUoS Charges & Why They Matter

Distribution Use of System (DUoS) charges are the fees paid for using local electricity networks, but they’re far more than a line on a bill. DUoS underpins how Distribution Network Operators recover costs, shapes price signals across the system, and directly affects what consumers pay as well as how energy projects are developed and valued. Understanding how DUoS works is essential for households, businesses, and developers navigating an evolving, electrified energy system.

December 2, 2025

Grid Connection Feasibility Studies: Understanding the New Landscape after Connections Reform

The Impact Connections Reform will have on Grid Connection Feasibility In recent years, demand for new grid connections has grown significantly, as the UK and international energy markets transition toward cleaner, low-carbon generation. For each of these connections, be it a new renewable project, expanding an existing site, or planning a large demand project such […]

November 3, 2025

DSO Flexibility Markets Transforming GB’s Grid Economics

Great Britain’s DSO flexibility markets are reshaping how electricity is managed, enabling smarter grid operation, cost savings, and greater renewable integration. Discover how these markets work, who can participate, and how Blake Clough Consulting helps clients unlock their value.

October 28, 2025

Q3 2025 Newsletter

Our latest round up of company news, events and projects from Quarter 3 of 2025

October 24, 2025

GB Capacity Market – Your Roadmap

The GB Capacity Market helps keep the lights on by rewarding reliable electricity supply. We break down how it works, what bidding involves, the annual cycle, and what happens after a contract is won.

September 13, 2025

Why CP2030 Has Changed Curtailment Risk – What This Means for Your Project

CP2030 has changed curtailment risk by reshaping how projects connect to the grid and how LIFO stacks are managed. These reforms will impact which technologies connect, the order they do so, and the curtailment levels they can expect across the GB network.

August 21, 2025

Grid Forming Control – Opportunities and Challenges

Battery energy storage systems (BESS) and other inverter-based resources have traditionally used grid-following control, effective only on strong networks. As inverter connections increase, grid strength falls, raising stability concerns. Grid-forming control offers a new approach to maintain stability in a changing energy system.

August 20, 2025

Will the upcoming TNUoS changes have a big impact on your project portfolio?

What do I need to know about the upcoming TNUoS changes? For developers and investors working at transmission level, Transmission Network Use of System (TNUoS) charges are often among the most opaque and underestimated elements of a project’s financial case. With a series of changes now approved or under development, the assumptions underpinning long-term cost […]

June 23, 2025

Delivering Grid Stability: Insights from Our Work on NESO’s Y-1 Mid-Term Stability Studies

As part of the National Energy System Operator’s (NESO) Mid-Term Stability procurement framework, Blake Clough Consulting recently supported a number of developers in preparing for and successfully delivering Y-1 stability assessments. These studies were a prerequisite for participating in NESO’s Y-1 Stability market where solutions that contribute inertia or system strength are procured ahead of […]

June 19, 2025

Fault Level Studies – What are they & Why are they Important?

Find out more about Fault Level Studies and how our team of power systems experts can help ensure your connection to the electricity network is safe, compliant, and reliable. Whether you're adding new generation, expanding industrial loads, or modifying existing infrastructure, understanding fault levels is crucial to maintaining system stability and preventing equipment damage.

June 12, 2025