Sadoway mentions a number of things most of us know are important, one is the missing element that could make solar and wind practical larger scale. We need work from the price point, and he mentions no subsidies, that leads me to believe he knows that subsidies can cloud our vision. It’s not just a cost to us all, it can cause us to invest in the wrong things. What is the potential efficiency of his battery? We need expend energy to make things warm, so what do we need to keep his battery warm? He’s right, it’s all so counter intuitive.
Interesting short lecture. Food for thought.