Kilowatt-hour meaning

A kilowatt-hour is a unit of energy equivalent to one kilowatt of power expended for one hour.


Kilowatt-hour definitions

Word backwards ruoh-ttawolik
Part of speech Kilowatt-hour is a noun.
Syllabic division ki-lo-watt-hour
Plural The plural of the word "kilowatt-hour" is "kilowatt-hours."
Total letters 12
Vogais (4) i,o,a,u
Consonants (6) k,l,w,t,h,r

Kilowatt-hour Explained

In the world of electricity consumption, a kilowatt-hour is a unit of energy that represents the amount of energy used by a 1,000-watt appliance in one hour. This unit is commonly used by utility companies to measure and bill customers for their electricity usage. It is a crucial metric for understanding and managing energy consumption at both residential and commercial levels.

Understanding Kilowatt-hour

One kilowatt-hour is equal to 3.6 million joules of energy. To put that into perspective, a typical 100-watt light bulb would consume 1 kilowatt-hour of energy over a period of 10 hours. This measurement helps consumers gauge how much energy various appliances and devices are using over time. By monitoring kilowatt-hour usage, individuals and businesses can make informed decisions about energy efficiency and cost-saving strategies.

Importance of Kilowatt-hour

Monitoring kilowatt-hour usage is essential for reducing energy waste and cutting down on electricity bills. By understanding how much energy is being consumed by different appliances and electronics, consumers can identify areas where energy conservation measures can be implemented. This knowledge empowers individuals and organizations to make sustainable choices that benefit both the environment and their wallets.

Calculating Electricity Costs

Electricity is typically billed in kilowatt-hours, with the cost per kilowatt-hour varying depending on the utility provider and location. To calculate how much a particular appliance is costing to run, you can multiply its wattage by the number of hours it is used and divide by 1,000 to convert to kilowatt-hours. Multiplying this by the cost per kilowatt-hour will give you the total cost of running that appliance for the specified time period.

Managing Energy Consumption

By keeping track of kilowatt-hour usage, individuals and businesses can identify energy-intensive activities and implement strategies to reduce overall consumption. This could involve upgrading to energy-efficient appliances, adjusting usage habits, or investing in renewable energy sources. Through conscious monitoring and management of kilowatt-hour usage, sustainable energy practices can be encouraged and maintained.


Kilowatt-hour Examples

  1. The household consumed 500 kilowatt-hours of electricity last month.
  2. A dishwasher uses about 1.5 kilowatt-hours of energy per cycle.
  3. The solar panels generate 10 kilowatt-hours of electricity per day.
  4. The electric car can travel 4 miles on 1 kilowatt-hour of energy.
  5. The power plant produces 1000 kilowatt-hours of electricity every hour.
  6. The average American home uses around 900 kilowatt-hours of electricity per month.
  7. Leaving a computer on overnight can waste several kilowatt-hours of energy.
  8. A wind turbine can generate 2.5 million kilowatt-hours of electricity per year.
  9. Energy-efficient appliances can help reduce your kilowatt-hour usage.
  10. The cost of electricity is often measured in kilowatt-hours.


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  • Updated 02/04/2024 - 14:26:34