When you need a DCO for offshore wind
Offshore wind farms are classified as Nationally Significant Infrastructure Projects (NSIPs) under the Planning Act 2008 if they exceed capacity thresholds. The DCO process provides all necessary consents for construction and operation in a single application.
Understanding the DCO process
The DCO examination process is rigorous and involves multiple stages of consultation, environmental assessment, and public scrutiny. Understanding these stages helps you plan timelines and resource requirements.
Alternative planning routes
The DCO route applies to larger offshore wind projects in England. Smaller projects and those in devolved nations follow different planning frameworks.
Key milestones and dependencies
The DCO process has critical dependencies:
- You must secure an Agreement for Lease from The Crown Estate before submitting your DCO application
- Evidence of grid connection progress (Gate 2 milestone) is required to demonstrate project deliverability
- Financial close typically requires DCO consent before investors commit funding
Plan for 3-4 years from pre-application to DCO decision, with a further 12-18 months to financial close.
Legal basis
Primary legislation and key regulations
Official guidance
Managing the Marine Historic Environment | Historic England (opens in a new tab)
Historic England
Major Development Schemes and Infrastructure | Historic England (opens in a new tab)
Historic England
Scottish Government offshore wind guidance (opens in a new tab)
www.gov.scot
HSE's role in NSIP applications (opens in a new tab)
HSE