A material called mayenite can be turned from an insulator to a transparent conductor and back with a tiny change in its chemical composition. It turns out components called electron anions help to transform crystalline mayenite into semiconducting glass.
Helping fish migrate past dams could cost a fraction of conventional fish ladders with the help of PNNL's upcoming study of Whooshh Innovations' so-called Salmon Cannon.
American companies are increasingly making their own power – and sales – with wind turbines located near the factories and buildings that consume the power they make, concludes PNNL's 2015 Distributed Wind Market Report.