Energy Usage FAQ
How much does OPPD charge for electricity?
OPPD’s average annual electric cost for residential customers is $.0936 for every kWh (kilowatt-hour) of electricity used.
What affects the cost of electricity?
That depends on many variables, including:
- Rates. Depending on where you live, each utility has different rates.
- Energy efficiency of your home and appliances.
- Behaviors/lifestyle. Includes the number of people in your home, the number of electronics and appliances, and how much you use those devices.
- Time of year. Generally, summer rates are higher than winter rates.
How is electric consumption measured?
By kilowatt-hour (kWh), which is 1,000 watts of electricity used for one hour. For example, ten 100-watt light bulbs running for one-hour would equal one kilowatt-hour. Your electric bill reflects the total kWh used during your billing period.
What’s the difference between a watt and a kilowatt-hour?
A watt is the rate of electric use by an appliance at the instant it is measured. Lights, appliances and electronics have various watt ratings. A 100-watt light bulb uses twice as much energy as a 50-watt light bulb in that same instant.
One kilowatt equals 1,000 watts.
Kilowatt-hours represent the amount of electric usage over a one-hour period. If you use 1,000 watts of electricity for one hour, that equals one kilowatt-hour of usage.
How do you calculate kilowatt-hours?
- Multiply the wattage of an electric device by the number of hours you use it.
- Divide that number by 1,000. That will convert the number from watt-hours to kilowatt-hours.
- Multiply the number of kilowatt-hours (kWh) by the cost per kWh to determine the cost of using that device.
Formula:Watts x hours used ÷ 1,000 x cost per kWh = cost of electricity used
Example: Assume your home uses a 2,000-watt window air conditioner, which runs for eight hours, and you pay $.1125 per kWh.
- 2,000 x 8 ÷ 1,000 x $.1125 = $1.80
- The cost to run the window AC for eight hours is $1.80
How much electricity do lights and appliances use?
Lights and appliances use electricity at different rates, and are rated by their wattage. Generally, the older and/or the less efficient the appliance, the more watts and thus kilowatt-hours (kWh) it will use. See the examples below.
|| Monthly kWh
|Window air conditioner (medium size)
|| 1,000 watts
|42-inch plasma TV
|Incandescent light bulb (100 watts)
|Compact fluorescent light bulb (25 watts)
|Light emitting diode (19 watts)
Use the OPPD appliance calculator to estimate energy use for a number of different appliances and lights.
Can I look at my energy bill and usage on line?
Yes, just go to MyAccount
- Log in with your ID and Password
- If a new user, click on New to MyAccount? to register
- Once logged in, click and view your Account Information
- You can then view your historical energy billing by individual month
Have other home energy usage questions?
If you have other questions, please email firstname.lastname@example.org, and you will be contacted by the next business day. You also can call an energy advisor at 531-226-3850, or visit the Energy Advisor webpage.