Framework for Assessing Ecological and Cumulative Effects

The Framework for Assessing Ecological and Cumulative Effects focuses on possible cumulative effects on the populations of species to be protected during the construction and operation of offshore wind farms in the period leading up to 2030. The site decisions for the various wind farms also look at whether site-specific effects can be expected. That also involves determining which mitigation measures can be taken to prevent any significant negative effects. These are effects that would cause a structural decline in the populations of species to be protected and would affect the natural resilience of the species. The Framework for Assessing Ecological and Cumulative Effects describes the research method and the results in further detail. Possible measures are also described here but the choices in this respect will be made in the site decisions.

KEC documents and publications

The Framework for Assessing Ecological and Cumulative effects 4.0 (2021 - 2022) consists of:

Part A reports:

Part B reports:

The Framework for Assessing Ecological and Cumulative effects 3.0 (2018 - 2019) consists of:

Part A

Framework for Assessing Ecological and Cumulative effects for the roll-out of offshore wind energy, KEC 3.0-2019 Part A: Methods

Part B reports

Framework for Assessing Ecological and Cumulative effects for the roll-out of offshore wind energy - Part B - Annex: Imares study of Cumulative Effects on birds and bats PDF document | 22,188 KB
Framework for Assessing Ecological and Cumulative effects for the roll-out of offshore wind energy - Part B - Annex: TNO study of Cumulative Effects on marine mammals PDF document | 8,813 KB
Framework for Assessing Ecological and Cumulative Effects – 2018. Cumulative effects of offshore wind farm construction on harbour porpoises). F. Heinis, HWE, C.A.F. de Jong, S. von Benda-Beckmann & B. Binnerts, TNO, 2018
Cumulative effects of offshore wind farms: loss of habitat for seabirds. Update for five seabird species in the period leading up to 2030, J.T. van der Wal, M.E.B. van Puijenbroek, M.F. Leopold, WMR 2018
Mitigation measures for bats in offshore wind farms. Evaluation and improvement of curtailment strategy, M. Boonman, Bureau Waardenburg, 2018
Update of KEC bird collision calculations in line with the Roadmap, Dr. A. Gyimesi, ir. J.W. de Jong, Dr. A. Potiek, E.L. Bravo Rebolledo MSc, Bureau Waardenburg 2018
Memorandum: Adding OWEZ and PAWP to the KEC 3.0 calculations ), Dr. A. Gyimesi & J.L. Leemans, Bureau Waardenburg, 2018
Memorandum on Workshop dd. 12 July 2018 (pdf, 2.1 MB), E.L. Bravo Rebolledo & A. Gyimesi, Bureau Waardenburg, 2018

Part C: Summary

Framework for Assessing Ecological and Cumulative Effects 3.0: Beschrijving and assessment of the cumulative effects associated with the implementation of the 2030 Offshore Wind Energy Roadmap

Relationship between parts A, B and C

Part A of the KEC report provides the conceptual framework for the approach to ecology and accumulation, and describes its implementation for offshore wind energy. Part A replaces previously published versions. The substantive reports (in Part B) further elaborate the substantive methods and models used, and include the calculations for the roadmap as made with the models. New reports have been added to Part B.

Part C provides an executive summary of the substantive reports and states the conditions required for the implementation of the 2030 Roadmap. Part C is new by comparison with previous versions.