I had a panel interview with the managers at EEI in their office, which took roughly half an hour. Most of the questions I got were about my previous job experiences that I stated on my resume as well as what I have achieved/learned through those. Overall, it was a great interview experience where I was able to talk freely about the projects that I worked on and ask questions about the internship that I was curious about. Make sure you know your projects well enough so that you can answer some of the technical questions about them in case they ask.