Batteries? Let’s look at air for energy storage
Not a new technology by any stretch of the imagination, compressed air energy storage (CAES) is slowly gaining ground with a number of projects taking shape at various stages of the design and implementation process. Currently, only two utility-scale plants exist; one, in Germany, and the other in Alabama, in the United States. With the growth of renewable generation sources, energy storage is only set to grow. Why do we need Energy Storage? The nature of our electricity infrastructure and available technology dictates that the energy we consume must be simultaneously produced. I.e. supply from the generators must always be equal to or greater than the demand from consumers. Unfortunately, we don’t consume electricity at a consistent rate. For example, at night when the lights at the office are off, we consume far less energy than during the day when most people are working. Unfortunately, it’s at these times of low consumption that we often have a large supply of renewable ene...