How pumped storage hydropower works with an upper and lower reservoir. (Credit: Tennessee Valley Authority) Listen (Runtime 1:00) Read Washington state wants to learn more about an old type of […]Read More
The site of the last coal-fired power plant in Washington state will soon be home to proving grounds for a carbon-emissions free mining truck.
The truck is a battery and hydrogen fuel cell powered vehicle, developed by Seattle-based First Mode, and it's the largest emissions free vehicle in the world. Chris Voorhees, co-founder and chief product and technology officer at Read More
