It depends on the complexity, the number of cost drivers to consider, and the number of scenarios (e.g. turbine models under consideration). On average it will take about 6 weeks (a few weeks to collect, assess, and discuss the boundary conditions, a few weeks to set-up the models and a few weeks to produce the results). The scope is not comparable to “old-fashioned wind farm layout design” where a person clicks a layout within a day. But it is worth the wait.