At postgraduate level I had fewer classes than I did for my undergraduate degree. Thus, there was much more spare time to do my own research and focus on what I need to do after I graduate. For example, as part of my industrial case study work, we had a class of different types of power plants. Several professors from different companies including Siemens and Rolls-Royce gave a presentation. In the afternoon, we had a Trillema game hosted by a professor from E.ON, which was a simulation of running a power company. We needed to decide and balance the advantages and disadvantages of each type of power station to get the most benefit to the company. It was an interesting course and we all enjoyed it.