Application of LiDARs in Annual Energy Production Assessment of Wind Turbines

The first work package of the LAWINE project is allocated to the application of LiDARs in wind resource assessments. In this report, energy production of a prototype 2.5 MW wind turbine at ECN Wind turbine Test site Wieringermeer߿ݠor EWTW are estimated using a meteorological mast, as well as a ground-based LiDAR and these are compared to the...

Assembly, transportation, installation and commissioning of offshore wind farms

Installation of offshore wind farms is the last step before commissioning of an offshore wind farm, which contributes to approximately 20-30% of development costs or 15-20% of the price of energy. However, the optimal installation planning is typically overlooked, resulting in project delays and noticable risks and financial consequences. In...

Innovative Offshore Wind Installation Concepts

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Oampersand M Concepts for Near and Far Offshore Wind Farms

Offshore wind farm Operation and Maintenance (O&M߿ݩ costs are a major part of levelised cost of energy, and significant opportunities exist for improving O&M strategies to reduce costs. A major contributor to high O&M costs is downtime caused by accessibility restrictions, as severe weather conditions offshore restrict...

ECN-NORCOWE wake LiDAR measurement campaign at ECN test site

In this report an overview of the ECN and NORCOWE wake LiDAR campaign at the ECN Wind turbine Test site Wieringermeer in the period 2012-2014 is given. In this campaign in parallel to meteorological masts, several ground based and nacelle based LiDARs were used to measure the wind regime and wind turbine wake behaviour. In particular the test...

Optimal support vessel and access system selection for offshore wind farms

Operation and maintenance (O&M) costs contribute to a significant part of Cost of Energy produced by offshore wind. In order to reduce the O&M costs and to guarantee safety and wellbeing of the maintenance technicians, for each individual wind farm an optimal set of support vessels and access systems should be selected. This selection should...

Commercial Proof of Innovative Offshore Wind Installation Concepts using ECN Install Tool

Innovative Offshore Wind Installation Concepts; Commercial Proof using ECN Install

Commercial Proof of Innovative Offshore Wind Installation Concepts using ECN Install tool

Installation of offshore wind farms contributes approximately 15-20% to the life cycle costs of an offshore wind farm. Moreover, because of its high dependency on weather conditions, it is associated with high risk. The high installation costs of offshore wind can be reduced significantly by innovative installation methods. In this report, first...

Robust Installation Planning of Offshore Wind Farms

The main risk in the installation of offshore wind farms is caused by unfavorable weather conditions, which can delay the entire installation plan up to several months and hence, increase the installation costs significantly. Currently, there is no study available to model the entire installation procedure of offshore wind farms, considering all...

Oampersand M Cost Reduction of Offshore Wind Farms - A Novel Case Study

This report gives a summary of the FLOW Operation and Maintenance Cost Estimator (OMCE)߿ݠproject. In this report first a short introduction to operation and maintenance (O&M) of offshore wind farms is given and then, the tools which are further developed through this project for O&M cost estimation are discussed. Furthermore, an...

A structured approach for data collection and analysis

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