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What is the Marine Data Exchange?

"The Marine Data Exchange (MDE) is the first of its kind and a world leading digital platform of industry survey data, research and evidence that was created by The Crown Estate in 2013.

It provides a digital platform for offshore industries to share survey data collected throughout the lifetime of offshore projects, and hosts new data and research generated through programmes such as The Crown Estate’s Offshore Wind Evidence and Change (OWEC) programme.


Through this approach, we can ensure that existing data and evidence drives positive impact, whilst identifying and addressing data and evidence gaps. The significant evidence base on the MDE – which is currently over 260TB of data – will be important in accelerating offshore wind deployment to reach net zero by 2050, achieving energy security, and in driving holistic evidence-based decisions that support the protection and enhancement of the marine environment.

By making this wealth of data freely available through cutting-edge technology, we give offshore projects in the UK a valuable head start, helping those involved to make informed, evidence-based decisions and address consenting and planning challenges.

To find out more about how we have built our data holding through the data clause and the requirements to provide data, please read our Marine Data Exchange Data Holding document.

"The Marine Data Exchange is a community.

Offshore industries in the UK, such as the offshore renewables sector, have set a strong precedent for data sharing through the Marine Data Exchange. It was first developed by The Crown Estate, but it’s continuous development, vision and success is driven by the user community; our customers and our stakeholders


Learn more about the Marine Data Exchange


The Marine Data Exchange Impact report was created by The Crown Estate, with collaboration from our customers and stakeholders, to showcase the role of the platform in supporting the UK’s net zero and biodiversity targets. The report celebrates our partners who continue to deliver data and explores the history, impact and value of the Marine Data Exchange, whilst shining a light on organisations and individuals that have used the data hosted on the Marine Data Exchange to inform their work.

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