How do I know how much I pay per kWh?
Electricity is one of the most important resources for our daily life. It allows us to light up our homes, operate appliances, charge our electronic devices and much more. However, using this energy comes with a cost that we often do not fully understand.
In this article, we will see how to calculate the cost of electricity based on the amount consumed (measured in kilowatt-hours or kWh) and the price per kWh set by the energy supplier.
Electricity consumption
To understand how much you pay for electricity, it is important to know how much you consume. This value is measured in kilowatt-hours (kWh) and is indicated on your electricity bill.
The consumption depends on various factors such as the number of people living in the house, the presence of energy-efficient appliances, the season of the year, personal habits etc.
The price per kWh
In addition to the amount of energy consumed, the price per kWh is another determining factor for the final cost of your electricity bill. The price per kWh may vary depending on the chosen energy supplier, type of contract signed and geographic location.
To know the price per kWh applied by your supplier, simply consult your electricity bill or the company's website. Generally, energy suppliers offer different rates according to their customers' needs.
How to calculate electricity cost
Once you know your electricity consumption (in kWh) and the price per kWh applied by your supplier, you can calculate the total cost of energy consumed during a certain period of time.
The calculation is very simple: just multiply the amount of energy consumed by the price per kWh. For example, if you have consumed 100 kWh at a price of 0.20 euro/kWh, the total cost will be 20 euros.
- Energy consumption (kWh): 100
- Price per kWh (euro/kWh): 0.20
- Total cost (euro): 100 x 0.20 = 20
In addition, you can use online tools provided by energy suppliers or other specialized websites to automatically calculate the cost by entering the required data.
How to read your electricity bill
Your electricity bill may seem complex at first glance, but it is actually quite simple to understand. Here's how to read it:
Customer details
First of all, at the top of your bill, you will find your personal details: name, surname, supply address and the POD (Point of Delivery) code. The latter is an alphanumeric code that identifies your electric delivery point.
Energy consumption
Beneath your customer details, you will find information regarding your energy consumption. The bill indicates the reference period (usually monthly or bi-monthly) and the total kWh consumed during that period.
Detail of rates
Subsequently, the items related to applied rates will be shown. This includes the unit cost per kWh, the amount of taxes and fees applied, any discounts applied, and the total amount to be paid.
Deadlines and payment methods
At the bottom of the bill you will find the deadlines and available payment methods. Remember that it is important to always pay by the indicated deadline to avoid penalties.
- Online payment: many companies offer the possibility to pay online through their website or mobile application.
- Bank transfer: it is possible to make payment by bank transfer, using the bank details indicated on the bill.
- Postal bulletin: it is possible to pay at post offices using the postal bulletin present on the bill.
In summary, reading an electricity bill is not difficult if you know the key information to look for. Always remember to check customer data, energy consumption, applied rates, and payment deadlines to avoid penalties.
Calculating cost per kWh based on your bill
To calculate cost per kWh based on your bill, follow these steps:
- Find your total electricity usage. This information can be found in the "Usage" or "Readings" section of your bill. It is usually expressed in kilowatt-hours (kWh).
- Find your total electricity cost. This information can be found in the "Cost of Energy" or "Price per kWh" section of your bill. It is usually expressed in euros (€).
- Divide your total electricity cost by your total electricity usage. This will give you your cost per kWh. For example, if your total electricity cost is €50 and your total electricity usage is 500 kWh, then your cost per kWh will be €0.10.
Here's a practical example:
- Total electricity usage: 800 kWh
- Total electricity cost: €100
- Calculating cost per kWh:
(€100 / 800 kWh) = €0.125 per kWh
In this example, the cost per kWh is €0.125.
Note that the cost per kWh may vary depending on the time of day and the type of contract you have with your electricity provider. Additionally, some electricity providers offer differentiated rates based on monthly consumption. To get a more accurate estimate of your cost per kWh, it's recommended to contact your electricity provider directly.
Factors that influence the cost of electricity
The cost of electricity depends on many factors. Below are some of the most important ones:
1. Supply and demand
As in any market, supply and demand affect the price of electricity. If there is high demand for electricity but low supply, prices will increase. Conversely, if there is an excess supply of electricity compared to demand, prices will decrease.
2. Energy production source
The type of source used to produce energy can affect its cost. For example, solar or wind energy may be less expensive than energy produced by coal or natural gas-fired power plants.
3. Transmission and distribution costs
Electricity must be transmitted from the production plant to the location where it is used through a transmission and distribution network consisting of high-voltage lines, transformer stations, and distribution substations. The costs associated with this infrastructure can affect the final price of electricity.
4. Government policies
Government policies such as taxes, subsidies, and incentives can affect the cost of electricity. For example, a government may provide incentives for the use of renewable energy sources or impose taxes on greenhouse gas emissions from power plants.
5. Weather conditions
Weather conditions can affect electricity production. For example, if there is a shortage of rain in areas where hydroelectric power plants are located, energy production may decrease and prices may increase.
6. Fluctuations in commodity prices
Fluctuations in commodity prices such as coal, oil, or natural gas can affect the cost of electricity. If oil prices increase, for example, costs associated with thermal power generation will increase and this could lead to an increase in the final price of electricity.
- In summary, the cost of electricity depends on many factors including supply and demand, energy production source, transmission and distribution costs, government policies, weather conditions, and fluctuations in commodity prices.
Strategies for saving on energy costs.
Saving on energy costs does not necessarily mean sacrificing the comfort of your home. There are several strategies that can be adopted to reduce electrical consumption without compromising quality of life.
1. Use LED light bulbs
LED light bulbs are much more efficient than traditional incandescent or fluorescent bulbs. Not only do they last longer, but they also consume less electricity. This can save up to 90% on energy bills related to household lighting.
2. Choose appliances with high energy efficiency ratings
Appliances represent a significant portion of domestic energy consumption. For this reason, it is important to choose products with a high energy efficiency rating (A++ or A+++). This will reduce electricity bills without sacrificing the functionality of appliances.
3. Turn off standby appliances
Even when appliances are on standby, they continue to consume electricity. To avoid waste, it is important to completely turn off appliances when they are not in use, or use multiple sockets with on/off switches to turn off all appliances at the same time.
4. Adjust thermostat temperature
Correctly adjusting the thermostat temperature can help reduce energy costs related to heating and air conditioning. A one-degree Celsius difference in temperature can result in a 7% variation in energy consumption.
5. Use renewable energy sources
The use of renewable energy sources such as solar or wind energy can contribute to reducing energy costs, especially in the long term. In some cases, it is even possible to sell excess energy produced to the national grid.
- Use LED light bulbs
- Choose appliances with high energy efficiency ratings
- Turn off standby appliances
- Adjust thermostat temperature
- Use renewable energy sources
By following these simple strategies, it will be possible to save on energy costs without compromising the comfort of your home.
Conclusion
In summary, knowing the cost of consumed electricity is the first step to reducing energy costs. Thanks to the information provided in the bill, it is possible to monitor your consumption and adopt the right strategies to reduce it. By using LED light bulbs, choosing appliances with high energy efficiency ratings, turning off standby appliances, adjusting the thermostat temperature and using renewable energy sources, it will be possible to save on energy costs without sacrificing the comfort of your home.

Michael Anderson - Software Engineer
My name is Michael Anderson, and I work as a computer engineer in Midland, Texas.
My passion is sharing my knowledge in various areas, and my purpose is to make education accessible to everyone. I believe it is essential to explain complex concepts in a simple and interesting way.
With GlobalHowTo, I aim to motivate and enrich the minds of those who want to learn.





