Research Themes Critical Minerals & Materials ETA is tackling the logistical and technological hurdles to secure the U.S. critical mineral supply chain. Data Centers Through the development of new technologies, system designs, and operational strategies, ETA's comprehensive approach addresses data centers at multiple scales. Energy Storage ETA is developing cost-competitive energy storage technologies that increase grid reliability. Advancing Water-Energy Systems ETA is a leader in national efforts to build more reliable and coupled water-energy systems. Innovation Economy We pride ourselves on ensuring that our research makes its way to the marketplace and into the hands of consumers.