Energy Encyclopedia

The Daily Energy Knowledge Graph: encyclopedia, database and reference pages on energy terms, companies, people, countries, fields and infrastructure.

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How Does a Nuclear Power Plant Work?

How does a nuclear power plant work? It uses the heat released when uranium atoms split to make steam, and the steam spins a turbine...

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The Largest Oil Fields in the World, Ranked

There is no single, universally agreed ranking of the world’s largest oil fields, because “largest” can mean total oil ever discovered, oil still remaining to...

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Inside Ghawar, the World’s Largest Oil Field

Ghawar is a roughly 230-kilometer-long oil field in eastern Saudi Arabia that has produced more crude oil than any other field in history — over...

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How Do Wind Turbines Work?

How do wind turbines work? They capture the kinetic energy of moving air with rotating blades, turn that rotation into mechanical power in a shaft,...

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How Do Solar Panels Work?

How do solar panels work? Each panel contains solar cells made mostly of silicon, and when sunlight hits them the light knocks electrons loose, which...

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What Is a Battery Energy Storage System (BESS)?

Last updated: November 9, 2026 A battery energy storage system (BESS) is a grid-connected installation of rechargeable batteries, usually lithium-ion, that stores electricity when it...

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What Is Henry Hub and Why Does It Set U.S. Gas Prices?

Last updated: November 9, 2026 Henry Hub is a natural gas pipeline interconnection point in Erath, Louisiana, that serves as the official delivery point for...

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Types of Renewable Energy: A Complete Guide

The main types of renewable energy are solar, wind, hydropower, geothermal, bioenergy and ocean energy. Each one draws on a natural flow that is replenished...