Topic: electricity grids

Lin Ma discusses the development of batteries for electricity grids, including the promise and limitations of sodium-ion systems. The conversation considers safety, materials choices and the role of storage in electricity systems that depend increasingly on renewable generation.

Melissa and Jam explain how evaporating water can cool a building and why the same approach works much better in dry climates than humid ones. They connect swamp coolers to older cooling techniques and examine newer ideas, including ice-based systems intended to reduce pressure on electricity grids.