In a power system with an increasing share of production from weather-dependent sources, the need for stabilizing and flexible (so called dispatchable) electricity will increase drastically. To counteract the rapid changes that can occur when the weather suddenly changes, we see how storage will be able to help cut production peaks that does not match the demand. The other way around, it can also generate electricity when production is low and quickly change its use on the grid depending on the system's needs.
Batteries have in recent years gained an increased place in the electrical system thanks to their unique ability to control their consumption at the millisecond level as response to sudden changes elsewhere on the grid. This gives them a unique possibility to provide many different forms of ancillary services and tap into such markets. They can also be used to, for example, timewise move the production from individual solar parks etc. Doing this, you can optimize the income and sell the electricity when it gives the best return.
