We are independent & ad-supported. We may earn a commission for purchases made through our links.

Advertiser Disclosure

Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.

How We Make Money

We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently from our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is Electricity Demand?

Mary McMahon
Updated May 17, 2024
Our promise to you
About Mechanics is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At About Mechanics, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

Electricity demand is the amount of electricity being consumed at any given time. It rises and falls throughout the day in response to a number of things, including the time and environmental factors. Managing demand is key for utilities, and this became an increasing issue at the end of the 20th century, as utilities struggled to balance electricity needs with aging electrical grids. The infrastructure behind the electrical grid is woefully outdated in many regions of the world, presenting a potential serious threat to economic well being.

One problem with electricity is that it does not lend itself well to storage. As a result, utilities typically generate power in an on-demand style, ramping up electricity generation when energy demand rises, and slacking off when the demand falls. Storing electricity is extremely inefficient with existing technology, making it difficult for utilities to bank energy against a time of sudden demand.

Electricity demand can fluctuate wildly. At 5:00 AM during temperate weather, for example, demand is usually very low. People don't have climate control systems on, heavy machinery is often not running, and people aren't engaging in activities like cooking, washing dishes, running hot water heaters, and so forth in large numbers. In contrast, at 3:00 PM on a hot day, demand can spike, with businesses requiring a lot of electricity to run their equipment while people run air conditioners to keep cool.

The difference between extremes is important, because utilities must be able to match demand with supply. This means that generators may be taken on and offline, and slowed or sped up to provide what's needed. Utilities also need to balance needs like taking generators fully offline for maintenance and shutting down part of the grid for repairs. When a utility has to shut down a power plant, it needs to know that the electricity demand can be met by other facilities.

One approach to managing electricity demand is building more generation facilities that can be brought online to manage peaks. Another solution is to encourage consumers to moderate their electrical consumption. For example, people may be encouraged to purchase energy efficient appliances, to use equipment that automatically shuts off when idle, and so forth. These tactics reduce energy demand and help to curb the steady rise in demand that has been documented in many regions of the world.

For those who are curious, some governments maintain charts online which track the demand for electricity throughout the day. People can use these charts to look at national as well as regional electricity consumption.

About Mechanics is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a About Mechanics researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments

By GenevaMech — On Apr 21, 2011

@alchemy- The use of renewable energy, especially solar, has promise to help meet demand at peak times. The biggest downside is that solar can have a negative effect on electricity prices because of the high capital costs. What solar brings to the table however, is promising for utilities because the electric grid in this country is reaching maximum capacity. In some cases, there is simply no room to add mega power plants to the grid infrastructure. Solar and other renewable technologies will help create a more decentralized grid. Solar is also most efficient at producing electricity during what is normally seen as the on-peak hours. This can allow for a utility to generate electricity without bringing another generator online.

By Georgesplane — On Apr 18, 2011

@Alchemy- it is true that the peak electricity demand response is to have a generator online to ensure that the grid can handle demand, but there are new ideas and technologies that are helping utilities level demand loads.

Some utilities use the potential energy of water to help level loads on the grid. The utility will pump water up to a reservoir when demand is low, effectively storing energy in the reservoir. When demand peaks, the utility lets the water fall down from the reservoir to spin a turbine to help meet demand. There are also different ways to convert electricity to chemical energy to store it for later use. Some of these techniques are also being used to make renewable energy like wind and solar more reliable.

By Alchemy — On Apr 15, 2011

What are some specific ways to manage the peaks of demand without adding new coal and gas fired reactors to the grid just for peak generation? I think it is ridiculous that the utilities have not figured out a way to store potential energy that can be released to level demand. I wonder how many power plants have turbines spinning on standby just for peak demand moments. Global electricity demand is increasing rapidly so the industry should be working just as hard to level demand and reduce consumption as they are spending to bring on new fossil fuel power plants.

Mary McMahon

Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

Learn more
About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.

About Mechanics, in your inbox

Our latest articles, guides, and more, delivered daily.