Why Can Electricity Be Cheap When Nobody Needs It?

Electricity can become extremely cheap or even reach negative wholesale prices when supply exceeds demand under particular market and operational conditions. Yet abundant electricity does not necessarily mean it can be stored, transported, or consumed wherever and whenever it is needed.

This Wait, Why? article examines why electricity prices sometimes fall below zero, drawing on examples from Germany, Australia, and California. It explores renewable generation, transmission constraints, battery storage, demand flexibility, and electricity market arrangements, explaining why the economic value of electricity depends on timing, location, and the ability of power systems to balance supply and demand.