Quantifiable Environmental Benefits

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At Legasea, we don't just talk about sustainability – we measure it. Our circular economy approach to subsea equipment delivers substantial, quantifiable environmental benefits that help our clients meet their sustainability goals while reducing costs.

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The Environmental Challenge

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The energy industry faces increasing pressure to reduce its environmental footprint while maintaining operational efficiency. Traditional approaches to equipment at end-of-life have significant environmental drawbacks:

• Manufacturing new equipment requires extensive raw material extraction

• Primary steel production alone generates approximately 1.83 tonnes of CO2 per tonne produced

• Globally, steel manufacturing accounts for 7-9% of all direct emissions from fossil fuels

• Additional emissions come from machining, assembly, and transportation

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Our Carbon Savings Calculation

For A Single Subsea Tree

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A typical subsea Christmas tree weighs approximately 45 tonnes. By refurbishing and reusing components rather than manufacturing new ones, we save:

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• 82.4 tonnes of CO2 emissions per tree through avoided primary steel production alone

• Additional savings from avoiding machining, assembly, and transportation emissions

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Across the North Sea

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With approximately 850 subsea trees installed in the UK North Sea alone, our approach represents a potential carbon reduction of up to 70,000 tonnes of CO2 – equivalent to taking over 15,000 cars off the road for a year.

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Beyond Carbon: Additional Environmental Benefits

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Our waste management approach delivers benefits beyond carbon reduction:

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Reduction in Raw Material Extraction

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By reusing existing components, we reduce the need for mining and processing new materials.

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Waste Diversion

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Components that would otherwise be scrapped are given new life, reducing waste sent to recycling or disposal facilities.

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Water Conservation

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Our cleaning processes are designed to minimize water usage and ensure proper treatment of all waste water.

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Marine Ecosystem Protection

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Proper handling and disposal of marine growth removed from subsea equipment helps protect marine ecosystems.

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Environmental Management Systems

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Our environmental commitments are backed by robust systems:

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• Operations conducted under SEPA Waste Management License WML/L/1195912

• Accredited Environmental Management System, in accordance with ISO 14001:2015

• Strict adherence to all regulatory requirements

• Regular environmental performance monitoring

• Continuous improvement of waste management processes

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Carbon Reporting for Clients

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We provide detailed carbon savings reports for all projects, allowing our clients to:

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• Accurately measure the environmental benefits of working with Legasea

• Include these savings in their sustainability reporting

• Demonstrate concrete actions toward carbon reduction goals

• Support their journey toward net zero

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Partner With Us for Sustainable Decommissioning

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Ready to transform your decommissioning projects into opportunities for environmental leadership? Contact our team today to discuss how we can help you quantify and achieve significant carbon savings.

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