Before performing energy optimization of the building model, specify its geographic location and select a nearby weather station.
Available weather stations display in the map and in the left-hand list. In general, you should choose a weather station nearest to your location. However, you may want to choose a nearby weather station whose elevation and land or water features better reflect the model's location.
Weather stations with references starting with 59### are Typical Meteorological Years (TMYs), which cover most major cities around the world. All other weather stations are from Autodesk's climate server, which provides data for the whole world at a 14 km (8.8 mile) grid for the years 2004 and 2006. These stations are useful when the project is located where TMY data is unavailable.