> None of which scale well. There is a startup that has developed a battery that was designed from the start to scale as much as possible for grid level storag

> None of which scale well. There is a startup that has developed a battery that was designed from the start to scale as much as possible for grid level storage. http://news.mit.edu/2016/battery-molten-metals-0112 http://news.mit.edu/2016/battery-molten-metals-0112 https://www.youtube.com/watch?v=NiRrvxjrJ1U https://www.youtube.com/watch?v=NiRrvxjrJ1U So far I've seen no reason to think that we won't be able to solve the energy storage challenges over the next 10-20 years. To be clear, I'm talking about smoothing out the power over hours and maybe days. If it's suddenly windless for a couple of weeks for some reason, there's no battery that will cover that. But we could just keep gas power plants around. They're great for that, and running them a few times a year is not gonna make a big dent in emissions. If they're used that rarely, we might even be able to use renewable gas. The other challenge is seasonal variations. But Northern Europe has ways to deal with that. Norway has massive amounts of hydro power, and is building new power lines to help nearby countries. Sweden has built a lot of trash burning facilities that also supply heat to nearby areas. I think I read these run mostly in winter. Not sure what the solution for northern North America is.