Information and energy are two fundamental needs of society, and electrical engineers play a critical role. Improved technologies allow us to efficiently and intelligently manage energy throughout its lifecycle. Solar cells convert energy from sunlight. Electric motors drive vehicles following Faraday's Law. Electronic loads ranging from biomedical implants to robotics to large scale data centers will be powered by renewable energy resources. At Princeton, we work on a wide range of fundamental and interdisciplinary technologies to address the energy and environmental challenges of our collective future. Our students are continually developing novel solutions to electricity generation, transmission, storage, actuation and utilization. Their research also focuses on precisely measuring and monitoring the environmental impacts of existing and emerging technologies. Innovations in electronic devices, circuits and systems, and computer algorithms enable us to push the boundaries in energy science and engineering. Through the study of new materials for solar cells, environment-friendly electronic materials, new circuits in power electronics, advanced atmospheric measurements, more energy efficient computer architecture, and novel algorithms and devices for collecting, processing and securing data for energy systems, researchers in this department make a measurable impact on the future of environmentally responsible energy production, management and utilization.