OWE_DecommisionningCost_MaterialRevenues_KeyCodes.zip

This repo contains main codes to extract the offshore wind turbines and estimate the decommisionning cost and material revenues.

The three javascripts need to be run on Google Earth Engine. To run the code for extracting the offshore wind turbine, an account on Google Earth Engine is necessary.

1. The code used for extracting offshore wind turbine is shown in the file of "OWT_Screening.js", including the key steps of images collection, removal of mobile objects, extraction of WTs candidates, morphological operation, removal of unresonable objects.

2. The code used for extracting height,diameter and width of offshore wind turbines is shown in the file of "OWT_DHW.js",including the key steps of obtaining the height,diameter and width of WTs.

3. The code used for calculating material weights of offshore wind turbines is shown in the file of "OWT_MaterialWeights.js",,including the steps of obtaining the weight of 4 main components, 7 bulk materials and 3 rare earth materials.

The python file includes the steps of estimating the decommisionning cost and material revenues.

1. "Decommisioning_cost_estimation.py", the calculation for Offshore Wind Turbines decommissioning cost which includes key steps to remove the infrastructures.

2. "Material_revenue_estimation.py", codes to calculate revenue for offshore wind turbine material recycling in China.