# What is Energy? Energy is the foundation of modern civilization, powering everything from basic utilities to advanced technologies. The history of energy is marked by the discovery, utilization, and exploitation of various sources. Today, energy encompasses not only fossil fuels like coal and oil but also renewable sources such as solar, wind, hydro, and geothermal energy. The transition to sustainable energy is essential to address resource scarcity, climate change, and energy security. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://ohm3.gitbook.io/ohm3/introduction/what-is-energy.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.