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Revolutionary eDNA Technology Transforms Offshore Wind Farm Environmental Assessments

Implementation Date

July 1, 2024

By

EDF Renewables (in collaboration with Natural Power)

City

Blyth

story image

Description

EDF Renewables, Natural Power, and NatureMetrics pioneered the first comprehensive validation of eDNA technology for offshore wind farm environmental impact assessments. This groundbreaking 18-month study at EDF's Blyth Offshore Demonstrator compared eDNA sampling with traditional trawling methods across four seasonal surveys. The project addresses critical industry challenges as the UK targets 50 GW offshore wind capacity by 2030. eDNA technology enables safer, faster, and more comprehensive marine biodiversity monitoring, accessing previously unreachable areas within turbine arrays while dramatically reducing costs and environmental impact compared to conventional methods.

Impact & Result

Environmental: Detected 70% more fish species than traditional trawling (54 vs 26), plus marine mammals and seabirds from single samples. First detailed species data within turbine arrays, supporting artificial reef hypothesis. Non-invasive sampling protects marine life. Economic: 40% reduction in vessel time, 67% reduction in personnel resources, enhanced survey windows, reduced weather delays, streamlined permitting processes for renewable energy development.

Solution Spotlight

eDNA enables data on species and ecosystems to be generated at unprecedented scales using DNA traces that organisms leave behind in the environment, especially in water. A simple kit is used to filter water from lakes, rivers or oceans, capturing the DNA traces the filter membrane, which is sent to a laboratory for analysis. In the lab, the DNA is sequenced and sequences are compared against a reference library to identify the species they came from. A single sample of just a litre of water can reveal hundreds of species, ranging from bacteria to blue whales and including both species that live in the water and those living on land nearby. The ease of sampling enables biodiversity to be surveyed in more places, more often, and by a wider range of stakeholders, providing the evidence-base for effective conservation, impact mitigation and restoration of our natural resources.

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