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De-risking Nature-smart Deployment at Sea: The Crown Estate’s Offshore Wind Evidence and Change (OWEC) Programme

Project overview 

Launched in 2020 with over £50 million in funding, the OWEC Programme is a flagship initiative led by The Crown Estate in partnership with DESNZ and DEFRA.[1] It supports the scalable, sustainable growth of the UK’s offshore wind sector through a cross-sector collaboration involving government, industry and environmental organizations. OWEC aims to reduce consenting delays which can cost developers up to £200,000 per day, minimize cumulative environmental impacts and build a strategic evidence base for responsible offshore wind deployment.[2]

Comprising over 30 interlinked projects, OWEC tackles challenges across environmental data gaps, biodiversity baselining, underwater noise monitoring, mitigation pilots and inclusive community engagement. It contributes directly to the UK’s Marine Spatial Prioritisation programme,[3] aligning with net-zero and marine protection goals. 

Approach 

OWEC adopts a systems-based and collaborative governance model, working with over 20 partners across sectors – academia, non-governmental organizations (NGOs), regulators and industry. Its work is structured around four thematic clusters: strategic evidence-building, mitigation and innovation pilots, decision-support tool development, and policy and governance enablement. 

Notable pilots include POWEM,[4] which explores spatial techniques to reduce seabird collisions and S3 (Subsea Soundscape study), which monitors cumulative underwater noise impacts on marine mammals. The Crown Estate also operates the Marine Data Exchange, the world’s largest repository of offshore marine industry survey data, facilitating transparent and data-rich project development. 

The programme’s multi-phase governance process includes co-design of research priorities, peer-reviewed evidence generation and coordinated dissemination via policy briefings, industry forums and regulatory working groups. By feeding directly into the UK Marine Spatial Prioritisation programme, OWEC also ensures alignment with national net-zero and marine protection goals. 

Business and economic value 

OWEC directly addresses one of the most significant barriers to offshore wind development: consenting delays, which can cost developers up to £200,000 per day, according to the Crown Estate. By filling data gaps and strengthening regulatory confidence, the programme accelerates permitting and improves project bankability. 

It also reduces litigation risk by investing in environmental mitigation and strengthening the science-policy interface, thereby improving the overall resilience of the UK’s offshore wind pipeline. OWEC’s transparent and coordinated approach sends a strong market signal, enhancing investor confidence in the UK as a stable and forward-looking offshore wind market. 

Beyond permitting, the programme fuels job creation in data science, marine ecology and environmental consultancy. Its innovation in digital infrastructure – such as AI-enabled wildlife tracking and geospatial data platforms – has broader utility across marine conservation, fisheries and coastal logistics. And by enabling co-location strategies that balance wind development with conservation and fisheries, OWEC improves spatial efficiency and reduces stakeholder conflict, unlocking greater economic value from shared marine spaces. 


References:

  1. Offshore Wind Evidence and Change Programme - The Crown Estate
  2. The Offshore Wind Evidence and Change Programme Annual Report 2024 - The Crown Estate
  3. Governing the marine environment - Second report of Session 2024-25 - UK Parliament
  4. Guidance - Offshore wind development: library of strategic compensatory measures - DEFRA

Locations
Europe, United Kingdom
Year published
22 August 2025
Technology
Digital infrastructure, Marine ecological monitoring, Wind power
Intervention Type
Policy & Governance, Energy Transition & Innovation, Nature & Biodiversity
Value
Streamlined permitting, Ecosystem-based marine planning, Environmental mitigation