Umair Gaines
The cost of electricity per kilowatt-hour (kWh) varies across the United States, with residential rates ranging from 6 ¢/kWh to 71 ¢/kWh. As of July 2025, Hawaii has the highest electricity rates in the country, with an average of 42.44 ¢/kWh, while North Dakota boasts the lowest rates, with an average of 10.21 ¢/kWh for homes. Several factors influence electricity rates, including supply and demand, fuel costs, weather conditions, time of use, and location. Monthly electric bills are calculated by multiplying the average monthly consumption by the electric rate per kWh. Understanding these factors and staying informed about the latest rates in your region can help consumers manage their energy costs effectively.
| Characteristics | Values |
|---|---|
| Average electricity rate in the United States | 12.89¢ per kWh |
| Cheapest Electricity Rates | North Dakota (10.21¢/kWh for homes and 7.18¢/kWh for businesses) |
| Most Expensive Rates | Hawaii (42.34¢/kWh for residential and 38.29¢/kWh for commercial) |
| Average electricity rate in California | 31.77¢ per kWh |
| Average electricity rate in Texas | 9¢ per kWh |
| Average electricity rate in Pennsylvania | 18.98¢ per kWh |
| Average electricity rate in St. Louis County, MO | 12¢ per kWh |
| Average electricity rate in Saint Louis, MO | 13¢ per kWh |
| Average electricity rate in Rhode Island | 23.4% increase from April 2024 to April 2025 |
| Average electricity rate in Nevada | 15.8% decrease from April 2024 to April 2025 |
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What You'll Learn
Energy prices fluctuate annually and seasonally
The cost of electricity per kWh varies across the United States. In July 2025, the average electricity rate in the country was 12.89 cents per kWh, with North Dakota having the lowest rates at 10.21 cents per kWh and Hawaii the highest at 42.34 cents per kWh. The average monthly electricity consumption of a US household is 855 kWh, with an average monthly bill of $155.99.
Weather conditions and extreme temperatures also play a significant role in price fluctuations. Higher temperatures increase the demand for electricity as people use more energy for cooling, while colder temperatures drive up the demand for heating. As a result, electricity prices tend to be higher during these seasons.
Additionally, the availability of power plants and fuels, local fuel costs, and pricing regulations can impact energy prices. In a deregulated market, for instance, customers might experience more dramatic price fluctuations and higher costs compared to a regulated market.
The time of day can also affect electricity prices. Some energy suppliers offer plans with time-of-use discounts or free usage periods, such as free power during specific nighttime hours, to encourage electricity conservation and reduce peak demand.
Lastly, world events, such as wars or health crises, can influence energy prices. For example, Russia's invasion of Ukraine led to concerns over natural gas supplies, resulting in increased electricity prices.
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Prices vary across states
Electricity costs per kilowatt-hour (kWh) vary significantly across the United States, with rates influenced by various factors, including energy consumption, state regulations, geography, climate, consumption habits, local energy resources, and access to resources. For example, Texas has some of the lowest electricity rates in the country due to an abundance of local energy resources. Conversely, states that rely heavily on natural gas imports tend to have higher electricity rates.
The average electricity rate in the United States is between 12.89 cents and 17.11 cents per kWh, depending on the source and time frame. However, these rates can vary widely from state to state, with North Dakota having the lowest average residential rate of around 10-11 cents per kWh and Hawaii having the highest at approximately 42 cents per kWh.
The time of day and year can also impact electricity rates, with energy suppliers using complex models to forecast demand. For instance, in warmer states, summer rates may be higher due to increased energy demand for cooling, while the opposite can be true for states with harsher winters. Additionally, some states with deregulated energy markets, such as Texas, allow residents to choose their energy supplier and plan, potentially driving down rates through competition.
Commercial electricity rates also vary across states, with Texas having the fifth-lowest commercial rate of 9 cents per kWh as of March 2025. Commercial rates are generally lower than residential rates, with 11 states averaging below 10 cents/kWh and eight states averaging above 20 cents/kWh as of 2025.
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Monthly bills are calculated by multiplying average consumption by the electric rate
The cost of electricity varies depending on where you live, how your electricity is generated, and the time of day or year you're consuming energy. Monthly electricity bills are calculated by multiplying your average consumption by the electric rate.
Your average monthly consumption can be determined by reviewing your past electric bills. You can also calculate your electricity consumption by estimating the usage of your lighting and appliances. To do this, find the wattage of an appliance, divide it by 1,000 to get the energy usage in kilowatts, and then multiply this figure by the average number of hours the appliance is used per day.
The electric rate is the price per kWh that you pay to your electricity provider. In the United States, residential rates range from 6 ¢/kWh to 71 ¢/kWh. The average electricity rate across the country is 12.89 ¢ per kWh, but rates vary by state. For example, in July 2025, California's average electricity rate was 31.77 ¢ per kWh, while North Dakota's was 11.69 ¢ per kWh.
Once you know your average monthly consumption and the electric rate, you can calculate your monthly bill by multiplying these two figures together. For example, if your average monthly consumption is 500 kWh and your electric rate is 13 ¢/kWh, your monthly bill would be $65 (500 kWh x 0.13 ¢/kWh).
It's important to note that electricity bills may also include additional charges such as delivery rates and monthly fees, which can vary depending on your location and electricity provider. These charges are designed to cover the costs of running and maintaining the electrical grid and any public benefit programs.
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Solar panels can reduce costs
The cost of electricity varies across the United States, with residential rates ranging from 6 ¢/kWh to 71 ¢/kWh. The average electricity rate in the United States is 12.89¢ per kWh, but this can be as low as 10.21¢/kWh in North Dakota and as high as 42.34¢/kWh in Hawaii.
Solar panels can help to reduce these costs by lowering or eliminating your monthly electric bill. The amount you save depends on how much you spend on electricity and how much of your bill can be offset by solar energy. For example, in Saint Louis, MO, a 10.5 kW solar panel system can offset 100% of electricity consumption, saving $46,400 over 20 years.
Solar panels are an expensive initial investment, with the average cost of a home solar panel system being around $30,000. However, tax credits and incentives can reduce the net cost to around $21,000, and in some cases, savings can be upwards of $100,000 over 25 years.
Another benefit of solar panels is that they lock in your energy costs at a consistent rate, protecting you from annual rate increases. The cost of electricity generally goes up over time, so the savings from solar panels will typically increase over the years.
To maximize your savings, you can take additional steps such as upgrading to energy-efficient appliances and adjusting your energy usage habits to align with daylight hours when solar panels are generating electricity.
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Different plans are available for consumers to choose from
Energy deregulation in certain states and countries has given residents and businesses the power to choose their electricity provider and plan. This means that consumers can take control of their energy costs and shop for the best electricity deal.
When choosing an electricity plan, it is important to consider the type of plan, rate structure, and payment option. The type of plan refers to the rate you pay, with most consumers preferring the stability of fixed-rate plans. Fixed-rate plans allow you to know exactly how much you will pay for each unit of energy consumed. On the other hand, variable-rate plans can cause your bill to fluctuate depending on the energy market, with high demand resulting in higher prices.
In terms of payment options, you can choose between prepaid plans and postpaid plans. Prepaid plans allow you to pay for your electricity before you use it, similar to a prepaid phone plan, which can be a good option for those on a budget or looking to reduce their energy consumption. Postpaid plans, on the other hand, involve receiving a bill at the end of each month based on your usage and the price per kWh.
Additionally, contract length is an important factor to consider when choosing an electricity plan. You can choose from short-term plans of 12 months or less, long-term plans of more than 12 months, or something in between. Short-term plans typically offer more flexibility, while long-term plans may provide better value and lower pricing but usually come with larger early termination fees.
Finally, it is worth considering the green or renewable electricity percentages of plans and any incentives offered, such as bill credits, discounts, or charitable contributions. By comparing these factors and reading all the documents involved, you can make an informed decision about which electricity plan is best for your needs.
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Frequently asked questions
To calculate your electricity cost per kWh, you need to know your total power bill, your electricity taxes, and your total power consumption. You can then use the following formula: (total power bill - electricity taxes) / total power consumption.
You can calculate your total power consumption by adding up the power consumption of each device in your home. To calculate the power consumption of a device, multiply its wattage by the number of hours it is used per day, then divide that number by 1,000.
You can usually find the wattage of an appliance on the appliance itself or in its manual. If you can't find the wattage, you can try multiplying the amps by the volts, or you can search for the model online.
To calculate the cost of running a particular appliance, you can use the following formula: (monthly usage in kWh) x (monthly electric rate per kWh). You can usually find your electric rate on your last bill.
Yes, there are online calculators that can help you estimate your electricity costs. These calculators may require information such as your power consumption, energy price, and usage time. There are also electricity usage monitors that you can buy and plug your devices into to get a reading of how many watts a device is using.
