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Rate Plans

What kinds of rate plans does APS offer?

We have three types of residential rate or service plans:
• Standard or fixed rate plans, where the price of energy is the same no matter the day or time of day. For some customers, these types of plans may cost a little more in return for the convenience of a fixed rate all day versus the time-of-use plans that offer lower-cost off-peak hours. However, you can save money on a standard plan by reducing overall energy use each month.
• Time-of-use plans, where the price of energy is based on the time of day. Days are divided into off-peak and on-peak hours, for purposes of these plans. During off-peak hours, the price for energy is lower than the standard plans; it is higher during on-peak hours. You can save money on a time-of-use plan by using less energy during the higher-cost hours. (See “On-Peak and Off-Peak Hours” for more details)
• Demand plans are time-of-use plans that also include a demand charge. Your price of energy is based on the time of day you use energy and includes a charge for your highest one hour of use between 3-8 pm weekdays within the one-month billing period. These plans have the lowest pricing for energy but the added cost of a demand charge. The price you pay for electricity in any billing period will vary depending on your demand charge for that period as well as how much energy you use in on-peak and off-peak hours. You can save money on a time-of-use with demand plan by using less energy during the higher-cost hours and staggering or delaying the use of major appliances (e.g., washer, dryer, dishwasher, oven) and heating and cooling across higher-cost hours. (See “Demand” for more details)

How can I determine which plan is best for me?
By looking at your past energy usage (at least three months, and up to 12), we can tell you what you would have paid on each of the different plans so you can see which would be the lowest cost plan (if you were to continue using energy the same way). You can change your plan anytime at aps.com/compare or by calling our customer care center at 602-371-7171 in metro Phoenix (800-253-9405 other areas). However, some customers may choose a plan based on their needs or preferences rather than cost. For example, some customers may choose a standard plan if they cannot or do not want to adjust their energy usage for on-peak and off-peak hours. While we can provide you information based on your past usage, we recognize it is hard to predict your future usage, which will determine your future costs. (See “Plan Comparison Tool” for more details)

Which plans are the fixed rate plans?
Lite Choice and Premier Choice are the available residential fixed rate plans. Lite Choice is a lower-cost plan for customers who use less energy and requires a monthly average of 600 kilowatt-hours or lower. Premier Choice is priced slightly higher than the Lite Choice plan for customers who use a moderate amount of energy and requires a monthly average between 601 and 999 kilowatt- hours. We track your average monthly usage and check once a year to see if you still qualify for the plan. 

Plan Comparison Tool

What does the plan comparison tool do?
Our online tool, located at aps.com/compare, looks back at up to 12 months of your energy use. It uses this information to estimate what you might have paid over that same period on different service plans and tells you which plan could have saved you the most money. It is important to note the tool provides an estimate based on past usage, which is a good indicator of future usage, however actual cost will vary based on when and how you use energy in the future plus any pricing changes. You need at least three months of billing history to be eligible to use the tool. Solar customers on grandfathered net-metering rate plans and those without AMI meters are not able to use the plan comparison tool.

Do I need an aps.com account to use the plan comparison tool?
Yes, you need to log in to aps.com to use the plan comparison tool because the tool uses your past energy usage information to estimate what you might have paid on different plans. However, your bill also shows your lowest cost plan on page 1 and page 3 each month. In addition, if you call our care center at 602-371-7171 (800-253-9405), an advisor can provide you a plan comparison, especially if you do not have enough billing history to use the compare tool.

On-Peak and Off-Peak Hours

What is a time-of-use plan?
A time-of-use plan is a rate plan where the price for energy is based on the time of day. The price is greater during the on-peak hours of 3-8 pm on weekdays, and lower at all other times. This is because between 3 and 8 pm more energy is used.  As a result, more energy needs to be produced and energy therefore costs more, while during off-peak hours less energy is used and it costs less. 

What are the on-peak and off-peak hours?
The higher-cost hours (called on-peak hours) are from 3-8 pm weekdays, other than 10 designated holidays throughout the year. Get lower rates at all other times (called off-peak hours):  before 3pm and after 8pm weekdays, all day on weekends and all day on the 10 holidays. (The holidays are New Year’s Day, Martin Luther King Jr. Day, Presidents Day, Cesar Chavez Day, Memorial Day, Independence Day, Labor Day, Veterans Day, Thanksgiving Day and Christmas Day. If these holidays fall on a Saturday, the preceding Friday will be off-peak. If they fall on a Sunday, the following Monday will be off-peak.)

What are super off-peak hours?
The time-of-use Saver Choice plan has super off-peak hours in the winter months – your November through April bills. Super off-peak hours have even lower rates from 10 am-3 pm on weekdays (excluding holidays). Super off-peak prices are 70% lower than regular off-peak prices. This is a great time to use energy to save more money.

How do you save money on a time-of-use plan?
Use less energy during the higher-cost hours of 3-8 pm on weekdays and shift the use of energy to lower-cost off-peak hours. Customers who benefit from this rate plan are willing and able to manage the cooling and heating of their homes and shift the use of major appliances (e.g., washer, dryer, dishwasher, oven) to lower-cost hours. For example, run your dishwasher after 8 pm, do laundry before 3 pm or on weekends and use a programmable or smart thermostat to pre-cool or pre-heat your home during off-peak hours.

Which plans are your time-of-use plans?
Saver Choice is the available residential time-of-use plan. There are also time-of-use with demand plans. (See “Demand” for more details)

Demand

What is demand?
Demand is your highest one hour of on-peak energy used between 3-8 pm weekdays during the one-month billing period.

What is a demand charge?
A demand charge is displayed as a separate line item on your bill. It is based on your max on-peak hour of demand (measured in kilowatts or kW), multiplied by a charge per kilowatt. The charge per kilowatt varies by season. Think of this as the charge for the highest one-hour block of on-peak energy you use during a billing period.

What is a demand rate or demand plan?
A demand rate or demand plan is a time-of-use rate plan that includes a demand charge. The amount of your bill is based on how much energy you use, the time of day you use it and your highest one hour of use between 3-8 pm on weekdays during the one-month billing period. This plan offers our lowest electricity prices but adds the cost of the demand charge.  Customers have the potential to save the most on this plan, by using less energy during the higher-cost hours and staggering or delaying the use of major appliances, heating or cooling so they don’t all run at the same time during higher-cost hours. 

How does demand impact my bill?
On a demand rate, the demand charge is one of the components on your bill. The lower you can keep your demand, the lower the demand charge. For example, on Saver Choice Max in summer, the demand charge is $17.438 per kilowatt. If your demand is 5 kW your demand charge would be $87.19 (5 X $17.438). If you lowered your demand to 4 kW by shifting energy use to off-peak hours and/or staggering the appliances used across on-peak hours, the demand charge would be $69.75 (4 X $17.438).

How can you save on a demand rate?
Customers who select a demand rate plan are willing to and able to manage the cooling and heating of their homes, shift usage to lower-cost hours, AND stagger the use of major appliances (e.g., washer, dryer, dishwasher, oven) across higher-cost hours. For example, start the dishwasher after you’re done using the oven. You can use this chart to see how different appliances affect demand. Because demand is set by your highest hour of on-peak usage in the month, you can keep your demand lower by delaying electricity use to off-peak hours, spreading out usage during on-peak hours, and not using a lot of electricity in the same hour. 

What plans have a demand charge?
The two residential time-of-use with demand rate plans are Saver Choice Plus and Saver Choice Max.

Where can I see my maximum on-peak hour (or demand) on aps.com or the app?
Log in to your account on aps.com or on the APS app. On aps.com, from the dashboard you can click “View usage details” and it will show the time and date of your max on-peak hour and the number of kilowatts you used during that hour.  This number determines your demand charge for the current billing period. You can also find the link in the menu under “Billing and Payment” then under “Billing and Usage” click Detailed Usage. On the app, click “Usage” in the lower menu and then “Your detailed energy usage.” 

Adjustors

What are adjustors?
Adjustors are a part of the overall cost of energy but noted as separate line items on your bill. Unlike base rates that change every few years, the adjustors can change annually – going up or down – pending approval by the Arizona Corporation Commission. Examples include the Power Supply Adjustment, which covers costs or savings for fuel and purchased power, and the Renewable Energy Adjustment Charge, which funds renewable energy projects.

How do adjustors impact the bill?
An adjustor is a charge, or a credit, based on the number of kilowatt-hours used in a month or in some cases the maximum on-peak kilowatts (demand). The bill increase or decrease based on this charge will vary depending on your energy usage.

Rebates and General Cost Saving Tips

Where can I find rebates for energy efficiency upgrades?
Information about rebates for upgrades like AC installation, smart thermostats, duct repair and more is available at aps.com/rebates. Or visit APS Marketplace for information and special offers on energy-efficient products.

What are other ways I can conserve energy or lower my bill?
Get savings tips and tools, like our Energy Analyzer survey, which will provide customized tips for greater energy efficiency in your home, at aps.com/save.

Where can I get help to pay my bill?
If you or someone you know is struggling to pay the energy bill, we’re here to help. We offer assistance programs and resources to reduce your monthly payment or pay down the bill. Visit aps.com/assistance to learn more.

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