A shift towards a “first ready, first connected” system
Under recent reforms led by the National Energy System Operator (NESO) and Ofgem, the electricity connections process in Great Britain is undergoing a fundamental change.
The traditional “first come, first served” approach is being replaced with a more disciplined, delivery-focussed model: “first ready, first connected.”
In practice, this means developers must now provide clear, verifiable evidence that a project is genuinely ready to progress before securing a firm place in the grid connection queue.
This shift is designed to reduce speculation in the queue, accelerate viable projects, and ensure the electricity network can support the UK’s wider decarbonisation and growth ambitions.
For developers, however, it introduces a more structured and evidence-driven process that must be carefully navigated from the outset.
What counts as “connection ready”?
To secure a firm connection offer under the new framework, developers must demonstrate project maturity through robust evidence, including:
- Mature planning consent or a clear planning pathway
- Secured land rights and defined red-line boundaries
- A credible financial and delivery strategy
- Technical data demonstrating defined demand or generation capacity
Without these elements in place, projects risk remaining at the back of the queue or failing to progress through the new gate-based system.
Step 1: Pre-application and network assessment
Before submitting a formal application, early-stage feasibility is now more important than ever.
Assess network capacity
Developers should begin by reviewing Distribution Network Operator (DNO) heat maps to understand available capacity in their chosen location.
Define project requirements
Accurate demand or generation data is essential at this stage, including:
- Total site load (kVA) for consumption projects
- Generation capacity (MW) for energy projects such as renewables or storage
Early clarity on these metrics helps avoid delays later in the process and ensures more accurate grid applications.
Step 2: The two-gate application process
A key feature of the reformed system is the introduction of a structured two-gate approval process, designed to filter out speculative applications and prioritise deliverable projects.
Gate 1: Initial application
At this stage, developers submit basic project information to NESO or the relevant DNO.
This results in an indicative connection offer, but does not secure a firm position in the queue.
Gate 2: Firm connection offer
To progress, developers must meet stricter requirements, including:
- Evidence of planning consent or a clear route to approval
- Secured land rights
- A defined site boundary (red-line boundary)
- A credible financial and delivery plan
Only once these criteria are met will a project receive a firm connection offer and confirmed queue position.
Step 3: Application and offer acceptance
Once sufficient evidence is provided, developers must submit a full application using the updated standard documentation, often referred to as the evidence or application pack.
At this stage, connection offers will also distinguish between:
Contestable works
Works that can be delivered by an accredited Independent Connection Provider (ICP) or Independent Distribution Network Operator (IDNO), such as on-site infrastructure installation.
Non-contestable works
Works that must be completed by the DNO, typically involving reinforcement or upgrades to the wider electricity network.
Once a connection offer is issued, developers typically have a 90-day window to accept, confirm arrangements, and secure their position in the queue.
Step 4: Delivery through to energisation
After acceptance, the project moves into the delivery phase, which includes:
- Securing wayleaves and land access agreements
- Completing civil engineering works on-site
- Installing infrastructure in line with approved designs
- Metering installation via the chosen energy supplier
- Final energisation by the DNO
At this stage, coordination between contractors, providers, and the network operator becomes critical to avoid delays.
Key considerations for developers
The new process places greater emphasis on early-stage discipline and project readiness.
To improve outcomes, developers should:
- Avoid unconditional land purchases without confirmed grid capacity
- Undertake early feasibility assessments using DNO data
- Engage technical and utility advisors early in the planning stage
- Ensure planning, land, and financial readiness before application submission
The consequences of entering the process too early are increasingly significant, with speculative or underdeveloped projects at risk of delay or removal from the queue.
Final thoughts
The move towards a “first ready, first connected” system represents a major shift in how electricity connections are allocated across Great Britain.
While the reforms are designed to improve efficiency and reduce congestion in the grid queue, they also raise the bar for developers in terms of preparation and evidence.
Success in this new environment depends on early clarity, strong coordination, and a clear understanding of the technical and regulatory requirements at every stage.
At CSG Utilities, we support developers in navigating this evolving landscape, helping to align utility strategy, manage stakeholder coordination, and improve delivery certainty from the earliest stages of a project.
Want to find out more? Contact our team today to find out more.
