Catching light(ning) in a bottle – An intro to the US electricity grid and its markets…
Electricity is an unorthodox commodity. Technically, of course, electricity is a fungible economic unit. One megawatt can be replaced with another megawatt – it doesn't matter whether the electricity in question is generated from a nuclear plant, from a solar panel, or natural gas. Like most commodities, electricity is traded in markets and in just about any quantity.