Strategic Optimization of Offshore Wind Farm Installation

Abstract

A B S T R A C TThis work describes logistical planning of offshore wind farm installation through mathematical optimization.Two optimization models are developed to analyse cost-effective port and vessel strategies for offshore installation operations. By applying principals of mixed integer linear programming (MILP), the two models seek to minimize total costs through port-and vessel related decisions. The models cover offshore transportation and installation of a given amount of wind turbines. Different vessel strategies, ports, time horizon and weather restrictions are considered in the models. Several deterministic test cases with fixed cost parameters and historic weather data are implemented in AMPL and run with the CPLEX solver. The test cases show promising results in aiding strategic decisions, and the models provide valuable insight into economic impact of such decisions. The results indicate that decision aid could be more reliable if smaller subproblems are considered, potentially in a stochastic framework.

Application of Last Planner System to Modular Offshore Wind Construction

“…Similarly, B) would be liable to span restrictions in comparison to the rotor diameter. The quay area functions as a supermarket with buffer (Liker 2004), the CPM simulation though operates with predefined turnarounds defining the ready dates (Backe and Haugland 2017;Barlow et al 2017;Muhabie et al 2015;Paterson et al 2018;Tekle Muhabie et al 2018).…”

Continuous Improvements at Operator Level

“…Alla et al (2013) detailed the overall project planning, including cabling, foundations, and turbines. Backe and Haugland (2017) investigated port and vessel configurations, emphasizing potential weatherbased effects. Ursavas (2017) further developed the understanding of offshore wind farm installation planning and how changing weather conditions are crucial in calculations.…”