When an offshore wind farm is considered or has been decided upon, we provide support and advice as the owner's engineer throughout the development process on relevant technical, environmental, timing and financial matters. We establish full life cycle budgets for project income, and for capital investment and operation and maintenance costs. We establish full cash flow analysis versus the development – and the service life time schedules in order to investigate and secure the optimal economical feasibility of the project.
Our analyses include numerical modelling and assessment of met-ocean data, geophysical and geotechnical investigations, wind studies, EIS and EIA, and navigational risk analyses. All basis data are collected in a design basis for the project.
Assessment of met-ocean data
We assess wave and current input data for the structural design. Furthermore, we investigate correlations between waves and wind, which is an important parameter in connection with the design for fatigue. The assessment of wave and current data is also to be used in the numerical modelling of the morphological processes such as erosion and scour.
See also brochure on Metocean design data
We specify and perform geophysical investigations and underwater video recordings. These investigations provide input to the archaeological investigations, the environmental impact assessment (EIA) and to the base of the structural design.
In order to adapt the geotechnical investigations to the specific sites, we specify the investigations in laboratories to suit the individual sites before the investigations are carried out. Furthermore, we carry out and interpret the geotechnical investigations in order to provide a base for the structural design of foundations, turbines and the laying of cables.
See also brochure on Geotechnology in wind energy
The wind resource, the wind measurements and macro/micro siting of the turbines are assessed. The gathered information is used in relevant software and the project is established. When the energy output has been estimated, the turbine layout can be optimised among other things with regard to requirements from the local authorities.
EIS and EIA
We establish baselines for flora and fauna and estimate the impact on the environment from the wind project leading to environmental impact statements (EIS) or environmental impact assessment (EIA). Visual impact and as well as impact from noise and flicker are examples of issues that are assessed in the EIS. The EIS forms part of the basis on which the local authorities will decide, whether the wind project is to be approved or not.
Navigational risk analyses
For offshore wind farms, we estimate the navigational risk for passing vessels during the construction and during the operational lifetime of the wind farm. The risk analysis provides input to the environmental impact statement, the financial risk analysis and to the base of the structural design.
See also brochure on Mitigation of the risk in wind power