system
Given the following post, respond as if you're commenting on Reddit:
human
Where is the electrical energy generated from power plants stored? Do they have like very big batteries of sorts?
gpt
Very little energy storage tech has been developed for city grid applications. Any electricity we generate, we must use immediately. Powerplants have been designed so that they are able to match as closely as possible the generation of electricity with the demand for electricity, reducing excess as much as possible. Typically this is done by coal or natural gas powerplants, as they are much faster at spinning up or slowing down generators than other types of powerplants.