 Something that drives me very deeply is the need to provide electricity to 1.2 billion people that don't have electricity. This is a very deep driving force for me. Providing a basic need such as energy is as basic as providing food, essentially. Particularly electricity which is an enabling energy form that can lead to human progress. What I have been doing over the 40 years is to develop this technology that is based on silicon, the material that forms the basis for the silicon solar cells. It is a technology that has really made it into the industrial arena and has managed to create this revolution that is happening in the world. It is going to be as large as hydropower which is at the moment the largest form of renewable energy electricity in the world. In this laboratory, collectively, my colleagues and I are really developing top-of-the-line solar cell technologies. And if anything I am proud of is precisely this collective achievement of all my students but also the rest of colleagues here in this laboratory. The whole of A&U is an amazing place where science is effervescent. We can go to other laboratories across campus, my students use those laboratories as much as this laboratory. And we have incredible facilities and incredible brain power here at A&U. So collectively it makes it a quite flexible and very powerful research powerhouse.