--- description: "What is Electricity System: It includes electricity generation, storage, transmission & distribution grids, & all related infrastructure." title: What is Electricity System? - Energy Theory image: https://energytheory.com/wp-content/uploads/2023/04/JAN23-What-is-Electricity-System.jpg --- Close Menu - [About](https://energytheory.com/about-us/) - [EV](https://energytheory.com/category/electric-vehicles/) - [FAQs](https://energytheory.com/category/faqs/) - [Glossary](https://energytheory.com/category/glossary/) - [Green](https://energytheory.com/category/green/) - [Renewable](https://energytheory.com/category/renewable/) - [Sustainable](https://energytheory.com/category/sustainable/) - [Energy Economy](https://energytheory.com/category/energy-economy/) - [Energy Services](https://energytheory.com/category/energy-services/) - [Solar](https://energytheory.com/category/solar/) - [Sustainable](https://energytheory.com/category/sustainable/) - [News](https://energytheory.com/category/latest-news/) - Language [![Energy Theory](https://energytheory.com/wp-content/uploads/2022/11/2e3rtgthghnm.png)](https://energytheory.com/ "Energy Theory") ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![es](https://cdn.gtranslate.net/flags/svg/es.svg) Spanish ![fr](https://cdn.gtranslate.net/flags/svg/fr.svg) French ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![it](https://cdn.gtranslate.net/flags/svg/it.svg) Italian ![zh-CN](https://cdn.gtranslate.net/flags/svg/zh-CN.svg) Chinese (Simplified) ![nl](https://cdn.gtranslate.net/flags/svg/nl.svg) Dutch ![fi](https://cdn.gtranslate.net/flags/svg/fi.svg) Finnish ![de](https://cdn.gtranslate.net/flags/svg/de.svg) German ![hi](https://cdn.gtranslate.net/flags/svg/hi.svg) Hindi ![ja](https://cdn.gtranslate.net/flags/svg/ja.svg) Japanese ![pl](https://cdn.gtranslate.net/flags/svg/pl.svg) Polish ![pt](https://cdn.gtranslate.net/flags/svg/pt.svg) Portuguese ![ru](https://cdn.gtranslate.net/flags/svg/ru.svg) Russian [![Energy Theory](https://energytheory.com/wp-content/uploads/2022/11/2e3rtgthghnm.png)](https://energytheory.com/ "Energy Theory") ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![es](https://cdn.gtranslate.net/flags/svg/es.svg) Spanish ![fr](https://cdn.gtranslate.net/flags/svg/fr.svg) French ![en](https://cdn.gtranslate.net/flags/svg/en.svg) English ![it](https://cdn.gtranslate.net/flags/svg/it.svg) Italian ![zh-CN](https://cdn.gtranslate.net/flags/svg/zh-CN.svg) Chinese (Simplified) ![nl](https://cdn.gtranslate.net/flags/svg/nl.svg) Dutch ![fi](https://cdn.gtranslate.net/flags/svg/fi.svg) Finnish ![de](https://cdn.gtranslate.net/flags/svg/de.svg) German ![hi](https://cdn.gtranslate.net/flags/svg/hi.svg) Hindi ![ja](https://cdn.gtranslate.net/flags/svg/ja.svg) Japanese ![pl](https://cdn.gtranslate.net/flags/svg/pl.svg) Polish ![pt](https://cdn.gtranslate.net/flags/svg/pt.svg) Portuguese ![ru](https://cdn.gtranslate.net/flags/svg/ru.svg) Russian [Glossary](https://energytheory.com/category/glossary/) # What is Electricity System? By [Elliot Clark](https://energytheory.com/author/elliot_clark/)November 17, 20233 Mins Read ![JAN23 What is Electricity System](https://energytheory.com/wp-content/uploads/2023/04/JAN23-What-is-Electricity-System-1024x682.jpg "What is Electricity System?") An electricity system includes all of the components used to generate, transmit, distribute, and sell energy. This **includes electricity generation and storage facilities, transmission and distribution grids,** and all infrastructure associated with them. In other words, the electricity system is a network that includes generation, distribution, and transmission, and initially, it takes a type of energy (such as coal or diesel) and converts it to electrical energy. The power system includes all of the devices that are linked to it, such as the synchronous generator, motor, transformer, circuit breaker, conductor, and so on. ### **What is the Structure of Electricity System?** The power system is a complex business that can be divided into the subsystems listed below: **1.** **Generating Substation** The fuel (coal, water, nuclear energy, etc.) is transformed into electrical energy in a power plant. Electrical power is produced in the 11kV to 25kV range, which is then stepped up for long-distance transmission. The generating substation’s power plant is divided into three types, the thermal power plant, hydropower plant, and nuclear power plant. **2. Transmission Substation** The [transmission substation](https://science.howstuffworks.com/environmental/energy/power4.htm) is responsible for the overhead wires that transport electrical energy from generation to distribution substations. It only provides the vast majority of electricity to bulk power substations or very large consumers. Transmission cables primarily serve two purposes. - It transports energy from power plants to bulk receiving sites. - It connects two or more power generation facilities and the transmission lines link neighboring substations as well. **3.** **Sub-Transmission Substation** The sub-transmission system is the section of the transmission system that links the high-voltage substations to the distribution substations via the step-down transformer. The sub-transmission system operates similarly to a distribution system. It is distinct from a delivery system in the following ways. - The voltage level in a sub-transmission system is greater than in a distribution system. - It only serves a few substations as opposed to a distribution system that serves some loads. **4.** **Distribution Substation** A distribution system is a component of an electrical power system that connects all of the consumers in a region to the bulk power sources. Transmission lines link the bulk power stations to the generating substations. They provide power to some substations, which are typically located near load centers. Domestic, commercial, and comparatively small consumers are served by substations. Large blocks of electricity are required by consumers, which are typically supplied at the sub-transmission or transmission system level. **Recommended:** [What is an Electric Circuit?](https://energytheory.com/what-is-an-electric-circuit/) Share. [Facebook](https://www.facebook.com/sharer.php?u=https%3A%2F%2Fenergytheory.com%2Fwhat-is-electricity-system%2F "Share on Facebook") [Twitter](https://twitter.com/intent/tweet?url=https%3A%2F%2Fenergytheory.com%2Fwhat-is-electricity-system%2F&text=What%20is%20Electricity%20System%3F "Share on X (Twitter)") [Pinterest](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fenergytheory.com%2Fwhat-is-electricity-system%2F&media=https%3A%2F%2Fenergytheory.com%2Fwp-content%2Fuploads%2F2023%2F04%2FJAN23-What-is-Electricity-System.jpg&description=What%20is%20Electricity%20System%3F "Share on Pinterest") [LinkedIn](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fenergytheory.com%2Fwhat-is-electricity-system%2F "Share on LinkedIn") [Tumblr](https://www.tumblr.com/share/link?url=https%3A%2F%2Fenergytheory.com%2Fwhat-is-electricity-system%2F&name=What%20is%20Electricity%20System%3F "Share on Tumblr") [Telegram](https://t.me/share/url?url=https%3A%2F%2Fenergytheory.com%2Fwhat-is-electricity-system%2F&title=What%20is%20Electricity%20System%3F "Share on Telegram") [Email](mailto:?subject=What%20is%20Electricity%20System%3F&body=https%3A%2F%2Fenergytheory.com%2Fwhat-is-electricity-system%2F "Share via Email") ![mm](https://energytheory.com/wp-content/uploads/2023/04/Elliot1-150x150.jpg) [Elliot Clark](https://energytheory.com/author/elliot_clark/) Elliot is a passionate environmentalist and blogger who has dedicated his life to spreading awareness about conservation, green energy, and renewable energy. With a background in environmental science, he has a deep understanding of the issues facing our planet and is committed to educating others on how they can make a difference. #### Related Posts [![Post-consumer recycled (PCR) content](https://energytheory.com/wp-content/uploads/2024/04/Post-consumer-recycled-PCR-content.png "What is Post-Consumer Recycled (PCR) Content?")](https://energytheory.com/what-is-post-consumer-recycled-pcr-content/ "What is Post-Consumer Recycled (PCR) Content?") #### [What is Post-Consumer Recycled (PCR) Content?](https://energytheory.com/what-is-post-consumer-recycled-pcr-content/) April 9, 2024 [![Heating Seasonal Performance Factor (HSPF)](https://energytheory.com/wp-content/uploads/2024/02/Heating-Seasonal-Performance-Factor-HSPF.jpg "What is Heating Seasonal Performance Factor (HSPF)?")](https://energytheory.com/what-is-heating-seasonal-performance-factor-hspf/ "What is Heating Seasonal Performance Factor (HSPF)?") #### [What is Heating Seasonal Performance Factor (HSPF)?](https://energytheory.com/what-is-heating-seasonal-performance-factor-hspf/) February 3, 2024 [![What is Annual Fuel Utilization Efficiency (AFUE)](https://energytheory.com/wp-content/uploads/2024/02/What-is-Annual-Fuel-Utilization-Efficiency-AFUE.jpg "What is Annual Fuel Utilization Efficiency (AFUE)?")](https://energytheory.com/what-is-annual-fuel-utilization-efficiency-afue/ "What is Annual Fuel Utilization Efficiency (AFUE)?") #### [What is Annual Fuel Utilization Efficiency (AFUE)?](https://energytheory.com/what-is-annual-fuel-utilization-efficiency-afue/) February 2, 2024 Add A Comment Leave A Reply [Cancel Reply](https://energytheory.com/what-is-electricity-system/#respond) Save my name, email, and website in this browser for the next time I comment. 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