# Energy & Power Upper Intermediate

https://hienglishquiz.com/vocabulary/energy-and-power-b2

- CEFR: B2 (Upper-intermediate)
- Theme: Professional & Specialized
- Words: 17
- Premium: no
- Locked: no

How a plant is kept running and how its power is priced: what happens during an outage, a surge or an overload, when a fault forces a shutdown or an overhaul,…

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## Word list

* **outage**: A period of time when an area or building has no electricity supply at all. — “A fallen tree caused a two-hour power **outage** across the village.”
* **surge**: A sudden, short increase in the strength of an electric current. — “A lightning strike sent a **surge** through the line, damaging equipment.”
* **overload**: A situation where a circuit carries more current than it is designed to handle safely. — “The extra machines caused an **overload** that tripped the breaker.”
* **fault**: An unidentified problem in an electrical or mechanical system that needs to be found and fixed. — “Engineers traced the **fault** to a damaged cable underground.”
* **shutdown**: The planned act of switching a whole plant or machine off, usually for repair or inspection. — “The station goes through a full **shutdown** every year for maintenance.”
* **overhaul**: A thorough examination and repair of a machine, replacing worn parts to keep it working well. — “Every five years, the plant undergoes a complete **overhaul**.”
* **vibration**: A fast, continuous shaking movement in a machine, often checked to catch problems early. — “Engineers noticed unusual **vibration** in the machine just before it failed.”
* **standby**: A state in which equipment is kept ready to switch on immediately if the main power supply fails or isn't enough. — “A diesel unit stays on **standby** in case the main supply fails.”
* **hub**: The central point of a wind machine where the long turning arms are attached. — “Technicians reached the **hub** through a small hatch near the top.”
* **housing**: The outer part of a machine that covers and protects the equipment inside it. — “Rainwater had leaked into the **housing** and damaged the wiring inside.”
* **sediment**: Sand, mud or other solid material that settles at the bottom of water over time. — “Years of **sediment** had built up behind the dam.”
* **transmission line**: A high-voltage line, usually carried on tall towers, that moves electricity over long distances. — “The storm brought down a **transmission line**, cutting power to three towns.”
* **intake**: An opening or structure where water enters a system, such as a pipe or plant. — “Leaves and branches often block the **intake** during autumn.”
* **discharge**: The release of water from a dam, pipe or machine into a river or channel. — “Engineers reduced the **discharge** during the dry season to save water.”
* **demand**: The amount of electricity that customers want to use at a particular time. — “**Demand** rises sharply on hot afternoons when air conditioners run everywhere.”
* **supply**: The amount of electricity that is being provided to customers at a particular time. — “Engineers must keep **supply** stable even during extreme cold snaps.”
* **tariff**: The price a customer or supplier pays per unit of electricity, which can change depending on the time of day or season. — “Off-peak **tariff** rates encouraged households to run appliances at night.”

## Related

- Vocabulary library: https://hienglishquiz.com/vocabulary
- Section guide: https://hienglishquiz.com/vocabulary/llms.txt