More so than ever before, the United States is powered by a diverse mix of energy sources. The interactive diagrams that follow explore the past, present and future of this complex system.

American energy use, in one diagram. How much energy we use, what kind, and how much is wasted. ... LLNL produces a new energy flow chart showing the sources of US energy, what it’s used for, ...

Each year, the Department of Energy’s LLNL releases a Sankey diagram that tracks the nation’s consumption of energy resources. The 2012 Energy Flow Chart estimates, based on data from the ...

One of the wildest cars at the Geneva Motor Show, the Nanoflowcell Quant e-Sportlimousine is a research prototype that's powered by salt water. More accurately, it's powered by a flow battery that ...

When it comes to electrical circuits, there’s a lot to remember and understand. We've got you covered with this Intro to Circuits BBC Bitesize guide.